10-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-K
(Mark One)
ý	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934
	For the fiscal year ended December 31, 2016
OR
☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the transition period from __________to____________
Commission file number 001-34245
THE YORK WATER COMPANY
(Exact name of registrant as specified in its charter)
PENNSYLVANIA				23-1242500
(State or other jurisdiction of incorporation or organization)				(I.R.S. Employer Identification No.)
130 EAST MARKET STREET, YORK, PENNSYLVANIA				17401
(Address of principal executive offices)				(Zip Code)
Registrant's telephone number, including area code (717) 845-3601
Securities registered pursuant to Section 12(b) of the Act:
None			The NASDAQ Global Select Market
(Title of Each Class)			(Name of Each Exchange on Which Registered)
Securities registered pursuant to Section 12(g) of the Act:
COMMON STOCK, NO PAR VALUE
(Title of Class)
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.
☐ YES					ýNO
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.
☐ YES					ýNO
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
ý YES					☐NO
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
ýYES					☐NO
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act (check one):
		Large accelerated filer ☐	Accelerated filer ý
		Non-accelerated filer ☐	Small Reporting Company ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
☐ YES					ýNO
The aggregate market value of the Common Stock, no par value, held by nonaffiliates of the registrant on June 30, 2016 was $412,282,264.
As of March 7, 2017 there were 12,857,199 shares of Common Stock, no par value, outstanding.
DOCUMENTS INCORPORATED BY REFERENCE
Portions of the Proxy Statement for the Company's 2017 Annual Meeting of Shareholders are incorporated by reference into Part I and Part III.

TABLE OF CONTENTS

Forward-Looking Statements		3
PART I
Item 1.	Business	4
Item 1A.	Risk Factors	8
Item 1B.	Unresolved Staff Comments	13
Item 2.	Properties	13
Item 3.	Legal Proceedings	15
Item 4.	Mine Safety Disclosures	15
PART II
Item 5.	Market for the Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	16
Item 6.	Select Financial Data	18
Item 7.	Management's Discussion and Analysis of Financial Condition and Results of Operation	19
Item 7A.	Quantitative and Qualitative Disclosures About Market Risk	29
Item 8.	Financial Statements and Supplementary Data	30
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	59
Item 9A.	Controls and Procedures	59
Item 9B.	Other Information	62
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	62
Item 11.	Executive Compensation	62
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	63
Item 13.	Certain Relationships and Related Transactions, and Director Independence	63
Item 14.	Principal Accounting Fees and Services	63
PART IV
Item 15.	Exhibits and Financial Statement Schedules	64
Signatures		66
Index to Exhibits		67

Page 2

FORWARD-LOOKING STATEMENTS

Certain statements contained in this annual report and in documents incorporated by reference constitute “forward-looking statements” within the meaning of Section 21E of the Securities Exchange Act of 1934 and Section 27A of the Securities Act of 1933.  Words such as "may," "should," "believe," "anticipate," "estimate," "expect," "intend," "plan" and similar expressions are intended to identify forward-looking statements.  These forward-looking statements include certain information relating to the Company’s business strategy; statements including, but not limited to:

• the amount and timing of rate increases and other regulatory matters including the recovery of costs recorded as regulatory assets;

• expected profitability and results of operations;

• trends;

• goals, priorities and plans for, and cost of, growth and expansion;

• strategic initiatives;

• availability of water supply;

• water usage by customers; and

• the ability to pay dividends on common stock and the rate of those dividends.

The forward-looking statements in this Annual Report reflect what the Company currently anticipates will happen.  What actually happens could differ materially from what it currently anticipates will happen.  The Company does not intend to make a public announcement when forward-looking statements in this Annual Report are no longer accurate, whether as a result of new information, what actually happens in the future or for any other reason.  Important matters that may affect what will actually happen include, but are not limited to:

• changes in weather, including drought conditions or extended periods of heavy rainfall;

• levels of rate relief granted;

• the level of commercial and industrial business activity within the Company's service territory;

• construction of new housing within the Company's service territory and increases in population;

• changes in government policies or regulations, including the tax code;

• the ability to obtain permits for expansion projects;

• material changes in demand from customers, including the impact of conservation efforts which may impact the demand of customers for water;

• changes in economic and business conditions, including interest rates, which are less favorable than expected;

• loss of customers;

• changes in, or unanticipated, capital requirements;

• the impact of acquisitions;

• changes in accounting pronouncements;

• changes in the Company’s credit rating or the market price of its common stock;

• the ability to obtain financing; and

• other matters set forth in Item 1A, “Risk Factors” of this Annual Report.

Page 3

THE YORK WATER COMPANY

PART I

Item 1. Business.

The York Water Company (the "Company") is the oldest investor-owned water utility in the United States and is duly organized under the laws of the Commonwealth of Pennsylvania.  The Company has operated continuously since 1816.  The primary business of the Company is to impound, purify to meet or exceed safe drinking water standards and distribute water.  The Company also owns and operates three wastewater collection systems and two wastewater treatment systems.  The Company operates within its franchised territory, which covers 39 municipalities within York County, Pennsylvania and nine municipalities within Adams County, Pennsylvania.  The Company is regulated by the Pennsylvania Public Utility Commission, or PPUC, for both water and wastewater in the areas of billing, payment procedures, dispute processing, terminations, service territory, debt and equity financing and rate setting.  The Company must obtain PPUC approval before changing any practices associated with the aforementioned areas.

Water service is supplied through the Company's own distribution system.  The Company obtains the bulk of its water supply from both the South Branch and East Branch of the Codorus Creek, which together have an average daily flow of 73.0 million gallons.  This combined watershed area is approximately 117 square miles.  The Company has two reservoirs, Lake Williams and Lake Redman, which together hold up to approximately 2.2 billion gallons of water.  The Company has a 15-mile pipeline from the Susquehanna River to Lake Redman which provides access to an additional supply of 12.0 million gallons of untreated water per day.  The Company also owns seven wells which are capable of providing a safe yield of approximately 366,000 gallons per day to supply water to its customers in Carroll Valley Borough and Cumberland Township, Adams County.  As of December 31, 2016, the Company's average daily availability was 35.4 million gallons, and average daily consumption was approximately 18.8 million gallons.  The Company's service territory had an estimated population of 196,000 as of December 31, 2016.  Industry within the Company's service territory is diversified, manufacturing such items as fixtures and furniture, electrical machinery, food products, paper, ordnance units, textile products, injectable drug delivery systems, air conditioning systems, laundry detergent, barbells and motorcycles.

The Company's water business is somewhat dependent on weather conditions, particularly the amount and timing of rainfall.  Revenues are particularly vulnerable to weather conditions in the summer months.  Prolonged periods of hot and dry weather generally cause increased water usage for watering lawns, washing cars, and keeping golf courses and sports fields irrigated.  Conversely, prolonged periods of dry weather could lead to drought restrictions from governmental authorities.  Despite the Company's adequate water supply, customers may be required to cut back water usage under such drought restrictions which would negatively impact revenues.  The Company has addressed some of this vulnerability by instituting minimum customer charges which are intended to cover fixed costs of operations under all likely weather conditions.

The Company's business does not require large amounts of working capital and is not dependent on any single customer or a very few customers for a material portion of its business.  Increases in revenues are generally dependent on the Company's ability to obtain rate increases from the PPUC in a timely manner and in adequate amounts and to increase volumes of water sold through increased consumption and increases in the number of customers served.  The Company continuously looks for water and wastewater acquisition and expansion opportunities both within and outside its current service territory as well as additional opportunities to enter into bulk water contracts with municipalities and other entities to supply water.

The Company has agreements with several municipalities to provide sewer billing services.  The Company also has a service line protection program on a targeted basis in order to further diversify its business.  Under this optional program, customers pay a fixed monthly fee, and the Company will repair or replace damaged customer service lines, as needed, subject to an annual maximum dollar amount.  Opportunities to expand both initiatives are being pursued.

Page 4

Competition

As a regulated utility, the Company operates within an exclusive franchised territory that is substantially free from direct competition with other public utilities, municipalities and other entities.  Although the Company has been granted an exclusive franchise for each of its existing community water and wastewater systems, the ability of the Company to expand or acquire new service territories may be affected by currently unknown competitors obtaining franchises to surrounding systems by application or acquisition.  These competitors may include other investor-owned utilities, nearby municipally-owned utilities and sometimes competition from strategic or financial purchasers seeking to enter or expand in the water and wastewater industry.  The addition of new service territory and the acquisition of other utilities are generally subject to review and approval by the PPUC.

Water and Wastewater Quality and Environmental Regulations

Provisions of water and wastewater service are subject to regulation under the federal Safe Drinking Water Act, the Clean Water Act and related state laws, and under federal and state regulations issued under these laws.  In addition, the Company is subject to federal and state laws and other regulations relating to solid waste disposal, dam safety and other aspects of its operations.

The federal Safe Drinking Water Act establishes criteria and procedures for the U.S. Environmental Protection Agency, or EPA, to develop national quality standards.  Regulations issued under the Act, and its amendments, set standards on the amount of certain contaminants allowable in drinking water.  Current requirements are not expected to have a material impact on the Company's operations or financial condition as it already meets or exceeds standards.  In the future, the Company may be required to change its method of treating drinking water, and may incur additional capital investments if new regulations become effective.

Under the requirements of the Pennsylvania Safe Drinking Water Act, or SDWA, the Pennsylvania Department of Environmental Protection, or DEP, monitors the quality of the finished water supplied to customers.  The DEP requires the Company to submit weekly reports showing the results of daily bacteriological and other chemical and physical analyses. As part of this requirement, the Company conducts over 70,000 laboratory tests annually.  Management believes that the Company complies with the standards established by the agency under the SDWA.  The DEP assists the Company by regulating discharges into the Company's watershed area to prevent and eliminate pollution.

The federal Groundwater Rule establishes rules for community water supplies serving between 100 and 500 customers.  This rule requires additional testing of water from well sources, and under certain circumstances requires demonstration and maintenance of effective disinfection.  The Company holds public water supply permits issued by the DEP, which establishes the groundwater source operating conditions for its wells, including demonstrated 4-log treatment of viruses.  All of the satellite systems operated by the Company are in compliance with the federal Groundwater Rule.  The Company completed modifications at one of these systems in 2016 to more reliably and consistently demonstrate 4-log treatment of viruses.

The Clean Water Act regulates discharges from water and wastewater treatment facilities into lakes, rivers, streams and groundwater.  The Company complies with this Act by obtaining and maintaining all required permits and approvals for discharges from its water and wastewater facilities and by satisfying all conditions and regulatory requirements associated with the permits.

The DEP monitors the quality of wastewater discharge effluent under the provisions of the National Pollutant Discharge Elimination System, or NPDES.  The Company submits monthly reports to the DEP showing the results of its daily effluent monitoring and removal of sludge and biosolids.  The Company is not aware of any significant environmental remediation costs necessary from the handling and disposal of waste material from its wastewater operations.

Page 5

Lead and copper may enter drinking water primarily through plumbing materials.  The Company is required to comply with the Lead and Copper Rule established by the EPA and administered by the DEP.  The Company must monitor drinking water at customer taps for compliance with this rule.  If lead concentrations exceed an action level, the Company must undertake a number of additional actions to control corrosion, inform the public about steps they should take to protect their health and may be required to replace lead service lines under its control.  See "Management's Discussion and Analysis – Environmental Matters" for a discussion of the Company's most recently completed testing.

The DEP and the Susquehanna River Basin Commission, or SRBC, regulate the amount of water withdrawn from streams in the watershed to assure that sufficient quantities are available to meet the needs of the Company and other regulated users.  Through its Division of Dam Safety, the DEP regulates the operation and maintenance of the Company's impounding dams.  The Company routinely inspects its dams and prepares annual reports of their condition as required by DEP regulations.  The DEP reviews these reports and inspects the Company's dams.  The DEP most recently inspected the Company's dams in 2014 and noted no significant violations.

Since 1980, the DEP has required any new dam to have a spillway that is capable of passing the design flood without overtopping the dam.  The design flood is either the Probable Maximum Flood, or PMF, or some fraction of it, depending on the size and location of the dam.  PMF is very conservative and is calculated using the most severe combination of meteorological and hydrologic conditions reasonably possible in the watershed area of a dam.

The Company engaged a professional engineer to analyze the spillway capacities at the Lake Williams and Lake Redman dams and validate the DEP's recommended flood design for the dams.  Management presented the results of the study to the DEP in December 2004, and DEP then requested that the Company submit a proposed schedule for the actions to address the spillway capacities.  Thereafter, the Company retained an engineering firm to prepare preliminary designs for increasing the spillway capacities to pass the PMF through armoring the dams with roller compacted concrete.  Management has met with the DEP on a regular basis to review the preliminary design and discuss scheduling, permitting, and construction requirements.  The Company is currently completing preliminary work on the dams as well as the final design and the permitting process.  The Company expects to finalize its plans in 2017 and begin armoring one of the dams between 2018 and 2019.  The second dam is expected to be armored in a year or two following the first dam armoring.  The cost to armor each dam is expected to be approximately $5.5 million.

Capital expenditures and operating costs required as a result of water quality standards and environmental requirements have been traditionally recognized by state public utility commissions as appropriate for inclusion in establishing rates.  The capital expenditures currently required as a result of water quality standards and environmental requirements have been budgeted in the Company's capital program and represent less than 10% of its expected total capital expenditures over the next five years.  The Company is currently in compliance with wastewater environmental standards and does not anticipate any major capital expenditures for its current wastewater business.

Page 6

Growth

During the five year period ended December 31, 2016, the Company continued to grow the number of customers and its distribution facilities.

The following table sets forth certain of the Company's summary statistical information.

(In thousands of dollars)	For the Years Ended December 31,
	2016		2015		2014		2013		2012
Revenues:
Residential	$	30,142	$	29,682	$	29,079	$	26,796	$	26,114
Commercial and industrial		13,760		13,822		13,267		12,299		12,114
Other		3,682		3,585		3,554		3,288		3,219
Total	$	47,584	$	47,089	$	45,900	$	42,383	$	41,447
Average daily water consumption (gallons per day)		18,798,000		18,507,000		18,327,000		19,094,000		18,553,000
Miles of water mains at year-end		967		958		951		945		940
Miles of wastewater mains at year-end		8		8		8		3		3
Additional water distribution mains installed/acquired (ft.)		46,368		40,873		28,523		28,051		59,653
Wastewater collection mains acquired (ft.)		-		-		28,250		-		14,820
Number of customers at year-end		67,052		66,087		65,102		64,118		63,779
Population served at year-end		196,000		194,000		192,000		190,000		189,000

Executive Officers of the Registrant

The Company presently has 105 full time employees including the officers detailed in the information set forth under the caption "Executive Officers of the Company" of the 2017 Proxy Statement incorporated herein by reference.

Available Information

The Company makes available free of charge, on or through its website (www.yorkwater.com), its annual report on Form 10-K, its quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act as soon as reasonably practicable after the Company electronically files such material with, or furnishes it to, the SEC.

Shareholders may request, without charge, copies of the Company's financial reports.  Such requests, as well as other investor relations inquiries, should be addressed to:

Molly E. Norton	The York Water Company	(717) 718-2942
Investor Relations &	130 East Market Street	(800) 750-5561
Communications Administrator	York, PA  17401	mollyn@yorkwater.com

Page 7

Item 1A. Risk Factors.

The rates we charge our customers are subject to regulation. If we are unable to obtain government approval of our requests for rate increases, or if approved rate increases are untimely or inadequate to cover our investments in utility plant and equipment and projected expenses, our results of operations may be adversely affected.

Our ability to maintain and meet our financial objectives is dependent upon the rates we charge our customers, which are subject to approval by the PPUC.  We file rate increase requests with the PPUC, from time to time, to recover our investments in utility plant and equipment and projected expenses.  Any rate increase or adjustment must first be justified through documented evidence and testimony.  The PPUC determines whether the investments and expenses are recoverable, the length of time over which such costs are recoverable, or, because of changes in circumstances, whether a remaining balance of deferred investments and expenses is no longer recoverable in rates charged to customers.  Once a rate increase application is filed with the PPUC, the ensuing administrative and hearing process may be lengthy and costly.  The timing of our rate increase requests are therefore dependent upon the estimated cost of the administrative process in relation to the investments and expenses that we hope to recover through the rate increase.  In addition, the amount or frequency of rate increases may be decreased or lengthened as a result of changes in income tax laws regarding tax-basis depreciation as it applies to our capital expenditures or qualifying repair tax deductible expenditures.

We can provide no assurances that future requests will be approved by the PPUC; and, if approved, we cannot guarantee that these rate increases will be granted in a timely or sufficient manner to cover the investments and expenses for which we sought the rate increase.  If we are unable to obtain PPUC approval of our requests for rate increases, or if approved rate increases are untimely or inadequate to cover our investments in utility plant and equipment and projected expenses, our results of operations may be adversely affected.

We are subject to federal, state and local regulation that may impose costly limitations and restrictions on the way we do business.

Various federal, state and local authorities regulate many aspects of our business.  Among the most important of these regulations are those relating to the quality of water we supply our customers, water allocation rights and the quality of the effluent we discharge from our wastewater treatment facility.  Government authorities continually review these regulations, particularly the drinking water quality regulations, and may propose new or more restrictive requirements in the future.  We are required to perform water and wastewater quality tests that are monitored by the PPUC, the EPA, and the DEP, for the detection of certain chemicals and compounds in our water and effluent.  If new or more restrictive limitations on permissible levels of substances and contaminants in our water and wastewater are imposed, we may not be able to adequately predict the costs necessary to meet regulatory standards.  If we are unable to recover the cost of implementing new water and wastewater treatment procedures in response to more restrictive quality regulations through our rates that we charge our customers, or if we fail to comply with such regulations, it could have a material adverse effect on our financial condition and results of operations.

We are also subject to water allocation regulations that control the amount of water that we can draw from water sources. The SRBC and the DEP regulate the amount of water withdrawn from streams in the watershed for water supply purposes to assure that sufficient quantities are available to meet our needs and the needs of other regulated users.  In addition, government drought restrictions could cause the SRBC or the DEP to temporarily reduce the amount of our allocations.  If new or more restrictive water allocation regulations are implemented or our allocations are reduced due to weather conditions, it may have an adverse effect on our ability to supply the demands of our customers, and in turn, on our revenues and results of operations.

Our business is subject to seasonal fluctuations, which could affect demand for our water service and our revenues.

Demand for our water during the warmer months is generally greater than during cooler months due primarily to additional requirements for water in connection with cooling systems, swimming pools, irrigation systems and other outside water use.  Throughout the year, and particularly during typically warmer months, demand will vary with temperature and rainfall levels.  If temperatures during the typically warmer months are cooler than expected, or there is more rainfall than expected, the demand for our water may decrease and adversely affect our revenues.

Page 8

Weather conditions and overuse may interfere with our sources of water, demand for water services, and our ability to supply water to our customers.

We depend on an adequate water supply to meet the present and future demands of our customers and to continue our expansion efforts.  Unexpected conditions may interfere with our water supply sources.  Drought and overuse may limit the availability of surface and ground water.  These factors might adversely affect our ability to supply water in sufficient quantities to our customers and our revenues and earnings may be adversely affected.  Additionally, cool and wet weather, as well as drought restrictions and our customers' conservation efforts, may reduce consumption demands, also adversely affecting our revenue and earnings.  Furthermore, freezing weather may also contribute to water transmission interruptions caused by pipe and main breakage.  If we experience an interruption in our water supply, it could have a material adverse effect on our financial condition and results of operations.

Some scientific experts are predicting a worsening of weather volatility in the future, possibly created by the climate change greenhouse gases.  Changing severe weather patterns could require additional expenditures to reduce the risk associated with any increasing storm, flood and drought occurrences.

The issue of climate change is receiving ever increasing attention worldwide.  Many climate change predictions, if true, present several potential challenges to water and wastewater utilities, such as increased frequency and duration of droughts, increased precipitation and flooding, potential degradation of water quality, and changes in demand for services.  The changes may result in lower revenue, the need for additional capital expenditures, or increased costs.  Because of the uncertainty of weather volatility related to climate change, we cannot predict its potential impact on our business, financial condition, or results of operations.  Although any potential expenditures and costs may be recovered in the form of higher rates, there can be no assurance that the PPUC would approve rate increases to enable us to recover such expenditures and costs.  We cannot assure you that our costs of complying with any climate change related measures will not harm our business, financial condition, or results of operations.

General economic conditions may affect our financial condition and results of operations.

A general economic downturn may lead to a number of impacts on our business that may affect our financial condition and results of operations.  Such impacts may include: a reduction in discretionary and recreational water use by our residential water customers, particularly during the summer months when such discretionary usage is normally at its highest; a decline in usage by industrial and commercial customers as a result of decreased business activity; an increased incidence of customers' inability to pay or delays in paying their utility bills, or an increase in customer bankruptcies, which may lead to higher bad debt expense and reduced cash flow; a lower customer growth rate due to a decline in new housing starts; and a decline in the number of active customers due to housing vacancies or abandonments.  A deterioration in general economic conditions may also lead to an investment market downturn, which may result in our pension plans' asset market values suffering a decline and significant volatility.  A decline in our pension plans' asset market values could increase our required cash contributions to these plans and pension expense in subsequent years.

The current concentration of our business in central and southern Pennsylvania makes us particularly susceptible to adverse developments in local economic and demographic conditions.

Our service territory presently includes 39 municipalities within York County, Pennsylvania and nine municipalities within Adams County, Pennsylvania.  Our revenues and operating results are therefore especially subject to local economic and demographic conditions in the area.  A change in any of these conditions could make it more costly or difficult for us to conduct our business.  In addition, any such change would have a disproportionate effect on us, compared to water and wastewater utility companies that do not have such a geographic concentration.

Page 9

Contamination of our water supply may cause disruption in our services and adversely affect our revenues.

Our water supply is subject to contamination from the migration of naturally-occurring substances in groundwater and surface systems and pollution resulting from man-made sources.  In the event that our water supply is contaminated, we may have to interrupt the use of that water supply until we are able to substitute the flow of water from an uncontaminated water source through our interconnected transmission and distribution facilities.  In addition, we may incur significant costs in order to treat the contaminated source through expansion of our current treatment facilities or development of new treatment methods.  Our inability to substitute water supply from an uncontaminated water source, or to adequately treat the contaminated water source in a cost-effective manner, may have an adverse effect on our revenues.

If our sources of water or water at customer sites become contaminated, it could subject us to reduction in usage, regulatory actions, damage to our reputation and private litigation.

As described in "Management's Discussion and Analysis – Environmental Matters", during our recently completed triennial testing, we determined that we exceeded the action level for lead in rules issued by the EPA.  The Company is operating under a consent order agreement with the DEP to address the test results, including replacing all company-owned lead service lines in the next four years.  While we believe that our response has been appropriate, we may incur significant costs in responding to this incident and may not be able to recover such costs through rates or from insurers.

Our primary business is to impound, purify to meet or exceed safe drinking water standards and distribute water.  Contamination of the water provided to our customers exposes us to risks, including regulatory or government action, customer exposure to contamination or hazardous substances in the water, and resulting private claims and litigation.  Negative impacts to our reputation may occur even if we are not responsible for any contamination or its consequences.  Pending or future claims against us and reputational damage could have a material adverse impact on our business, financial condition, and results of operations.

The necessity for increased security has and may continue to result in increased operating costs.

We have taken steps to increase security measures at our facilities and heighten employee awareness of threats to our water supply.  We have also tightened our security measures regarding the delivery and handling of certain chemicals used in our business.  We have and will continue to bear increased costs for security precautions to protect our facilities, operations and supplies.  We are not aware of any specific threats to our facilities, operations or supplies.  However, it is possible that we would not be in a position to control the outcome of such events should they occur.

The growing dependence on digital technology has increased the risks related to cybersecurity.

Computers and the Internet have led to increased productivity and improved customer service.  Unfortunately, progress in this area has brought with it cybersecurity risks.  Recently, the frequency and severity of cyber-attacks on companies has increased resulting in a disruption to business operations and the corruption or misappropriation of proprietary data.  We have and will continue to bear increased costs for security precautions to protect our information technology.  However, if such an attack was to occur and could not be prevented, customer information could be misappropriated, our networks may be down for an extended period of time disrupting our business, and it could require costly replacement of hardware and software.  We carry cyber liability insurance, however, our limits may not be sufficient to cover all losses or liabilities.

We depend on the availability of capital for expansion, construction and maintenance.

Our ability to continue our expansion efforts and fund our construction and maintenance program depends on the availability of adequate capital.  There is no guarantee that we will be able to obtain sufficient capital in the future or that the cost of capital will not be too high for future expansion and construction.  In addition, approval from the PPUC must be obtained prior to our sale and issuance of securities.  If we are unable to obtain approval from the PPUC on these matters, or to obtain approval in a timely manner, it may affect our ability to effect transactions that are beneficial to us or our shareholders.  A single transaction may itself not be profitable but might still be necessary to continue providing service or to grow the business.

Page 10

The failure to maintain our existing credit rating could affect our cost of funds and related liquidity.

Standard & Poor's Ratings Services rates our outstanding debt and has given a credit rating to us.  Their evaluations are based on a number of factors, which include financial strength as well as transparency with rating agencies and timeliness of financial reporting.  Failure to maintain our current credit rating could adversely affect our cost of funds and related liquidity.

We may face competition from other water suppliers or wastewater service providers that may hinder our growth and reduce our profitability.

We face competition from other water suppliers for acquisitions, which may limit our growth opportunities.  Furthermore, even after we have been the successful bidder in an acquisition, competing water suppliers or wastewater service providers may challenge our application for extending our franchise territory to cover the target company's market.  Finally, third parties either supplying water on a contract basis to municipalities or entering into agreements to operate municipal water or wastewater systems might adversely affect our business by winning contracts that may be beneficial to us.  If we are unable to compete successfully with other water suppliers and wastewater service providers for these acquisitions, franchise territories and contracts, it may impede our expansion goals and adversely affect our profitability.

An important element of our growth strategy is the acquisition of water and wastewater systems.  Any pending or future acquisitions we decide to undertake will involve risks.

The acquisition and integration of water and wastewater systems is an important element in our growth strategy.  This strategy depends on identifying suitable acquisition opportunities and reaching mutually agreeable terms with acquisition candidates.  The negotiation of potential acquisitions as well as the integration of acquired businesses could require us to incur significant costs.  Further, acquisitions may result in dilution for the owners of our common stock, our incurrence of debt and contingent liabilities and fluctuations in quarterly results.  In addition, the businesses and other assets we acquire may not achieve the financial results that we expect, which could adversely affect our profitability.

We have restrictions on our dividends. There can also be no assurance that we will continue to pay dividends in the future or, if dividends are paid, that they will be in amounts similar to past dividends.

The terms of our debt instruments impose conditions on our ability to pay dividends.  We have paid dividends on our common stock each year since our inception in 1816 and have increased the amount of dividends paid each year since 1997.  Our earnings, financial condition, capital requirements, applicable regulations and other factors, including the timeliness and adequacy of rate increases, will determine both our ability to pay dividends on our common stock and the amount of those dividends.  There can be no assurance that we will continue to pay dividends in the future or, if dividends are paid, that they will be in amounts similar to past dividends.

If we are unable to pay the principal and interest on our indebtedness as it comes due or we default under certain other provisions of our loan documents, our indebtedness could be accelerated and our results of operations and financial condition could be adversely affected.

Our ability to pay the principal and interest on our indebtedness as it comes due will depend upon our current and future performance.  Our performance is affected by many factors, some of which are beyond our control.  We believe that our cash generated from operations, and, if necessary, borrowings under our existing credit facilities will be sufficient to enable us to make our debt payments as they become due.  If, however, we do not generate sufficient cash, we may be required to refinance our obligations or sell additional equity, which may be on terms that are not as favorable to us.  No assurance can be given that any refinancing or sale of equity will be possible when needed or that we will be able to negotiate acceptable terms.  In addition, our failure to comply with certain provisions contained in our trust indentures and loan agreements relating to our outstanding indebtedness could lead to a default under these documents, which could result in an acceleration of our indebtedness.

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We depend significantly on the services of the members of our senior management team, and the departure of any of those persons could cause our operating results to suffer.

Our success depends significantly on the continued individual and collective contributions of our senior management team.  If we lose the services of any member of our senior management or are unable to hire and retain experienced management personnel, our operating results could suffer.

Work stoppages and other labor relations matters could adversely affect our operating results.

Approximately one-third of our workforce is unionized under a contract with a labor union.  In light of rising costs for healthcare and retirement benefits, contract negotiations in the future may be difficult.  We are subject to a risk of work stoppages and other labor actions as we negotiate with the union to address these issues, which could affect our business, financial condition, and results of operations.  Although we believe we have a good relationship with our union workforce and have a strike contingency plan, we cannot be assured that issues with our labor force will be resolved favorably to us in the future or that we will not experience work stoppages.

There is a limited trading market for our common stock; you may not be able to resell your shares at or above the price you pay for them.

Although our common stock is listed for trading on the NASDAQ Global Select Market, the trading in our common stock has substantially less liquidity than many other companies quoted on the NASDAQ Global Select Market.  A public trading market having the desired characteristics of depth, liquidity and orderliness depends on the presence in the market of willing buyers and sellers of our common stock at any given time.  This presence depends on the individual decisions of investors and general economic and market conditions over which we have no control.  Because of the limited volume of trading in our common stock, a sale of a significant number of shares of our common stock in the open market could cause our stock price to decline.

The failure of, or the requirement to repair, upgrade or dismantle, either of our dams may adversely affect our financial condition and results of operations.

Our water system includes two impounding dams.  While we maintain robust dam maintenance and inspection programs, a failure of the dams could result in injuries and damage to residential and/or commercial property downstream for which we may be responsible, in whole or in part.  The failure of a dam could also adversely affect our ability to supply water in sufficient quantities to our customers and could adversely affect our financial condition and results of operations.  We carry liability insurance on our dams, however, our limits may not be sufficient to cover all losses or liabilities incurred due to the failure of one of our dams.  The estimated costs to maintain and upgrade our dams are included in our capital budget.  Although such costs have previously been recoverable in rates, there is no guarantee that these costs will continue to be recoverable and in what magnitude they will be recoverable.

Wastewater operations entail significant risks and may impose significant costs.

Wastewater collection and treatment and septage pumping and sludge hauling involve various unique risks.  If collection or treatment systems fail or do not operate properly, or if there is a spill, untreated or partially treated wastewater could discharge onto property or into nearby streams and rivers, causing various damages and injuries, including environmental damage.  These risks are most acute during periods of substantial rainfall or flooding, which are the main causes of sewer overflow and system failure.  Liabilities resulting from such damages and injuries could materially and adversely affect our business, financial condition, and results of operations.

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The final determination of our income tax liability may be materially different from our income tax provision.

Significant judgment is required in determining our provision for income taxes.  The calculation of the provision for income taxes is subject to our interpretation of applicable business tax laws in the federal and state jurisdictions in which we file.  In addition, our income tax returns are subject to periodic examination by the Internal Revenue Service, or IRS, and other taxing authorities.  In December 2014, we changed our tax method of accounting to permit the expensing of qualifying asset improvement costs that were previously being capitalized and depreciated for tax purposes.  Our determination of what qualifies as a capital cost versus a repair expense tax deduction is subject to subsequent adjustment and may impact the income tax benefits that have been recognized.  Although we believe our income tax estimates are appropriate, there is no assurance that the final determination of our income tax liability will not be materially different, either higher or lower, from what is reflected in our income tax provision.  In the event we are assessed additional income taxes, our business, financial condition, and results of operations could be adversely affected.

We are subject to market and interest rate risk on our $12,000,000 variable interest rate debt issue.

We are subject to interest rate risk in conjunction with our $12,000,000 variable interest rate debt issue.  This exposure, however, has been hedged with an interest rate swap.  This hedge will protect the Company from the risk of changes in the benchmark interest rates, but does not protect the Company's exposure to the changes in the difference between its own variable funding rate and the benchmark rate.  A breakdown of the historical relationships between the cost of funds of the Company and the benchmark rate underlying the interest rate swap could result in higher interest rates adversely affecting our financial results.

The holders of the $12,000,000 variable rate Pennsylvania Economic Development Financing Authority (PEDFA) Series A Bonds may tender their bonds at any time.  When the bonds are tendered, they are subject to an annual remarketing agreement, pursuant to which a remarketing agent attempts to remarket the tendered bonds pursuant to the terms of the Indenture.  In order to keep variable interest rates down and to enhance the marketability of the Series A Bonds, the Company entered into a Reimbursement, Credit and Security Agreement with PNC Bank, National Association ("the Bank") dated as of May 1, 2008.  This agreement provides for a direct pay letter of credit issued by the Bank to the trustee for the Series A Bonds.  The letter of credit expires June 30, 2018 and is reviewed annually for a potential extension of the expiration date.  The Bank is responsible for providing the trustee with funds for the timely payment of the principal and interest on the Series A Bonds and for the purchase price of the Series A Bonds that have been tendered or deemed tendered for purchase and have not been remarketed.  If the Bank is unable to meet its obligations, the Company would be required to buy any bonds which had been tendered.

Item 1B. Unresolved Staff Comments.

None.

Item 2. Properties.

Source of Water Supply

The Company owns two impounding dams located in York and Springfield Townships adjoining the Borough of Jacobus to the south.  The lower dam, the Lake Williams Impounding Dam, creates a reservoir covering approximately 165 acres containing about 870 million gallons of water.  The upper dam, the Lake Redman Impounding Dam, creates a reservoir covering approximately 290 acres containing about 1.3 billion gallons of water.

In addition to the two impounding dams, the Company owns a 15-mile pipeline from the Susquehanna River to Lake Redman that provides access to a supply of an additional 12.0 million gallons of water per day.

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The Company also owns three satellite water systems in Adams County, Pennsylvania.  The Carroll Valley Water System consists of two groundwater wells capable of providing a safe yield of approximately 100,000 gallons per day with a current average daily consumption of 21,000 gallons per day.  The Western Cumberland Water System (formerly Lincoln Estates) consists of three groundwater wells capable of providing a safe yield of 144,000 gallons per day with a current average daily consumption of 18,000 gallons per day.  The Eastern Cumberland Water System (formerly The Meadows) consists of two groundwater wells capable of providing a safe yield of 122,000 gallons per day with a current average daily consumption of 23,000 gallons per day.

As of December 31, 2016, the Company's present average daily availability was 35.4 million gallons, and daily consumption was approximately 18.8 million gallons.

Pumping Stations

The Company's main pumping station is located in Spring Garden Township on the south branch of the Codorus Creek about four miles downstream from the Company's lower impounding dam.  The pumping station presently houses pumping equipment consisting of three electrically driven centrifugal pumps and two diesel-engine driven centrifugal pumps with a combined pumping capacity of 68.0 million gallons per day.  The pumping capacity is more than double peak requirements and is designed to provide an ample safety margin in the event of pump or power failure.  A large diesel backup generator is installed to provide power to the pumps in the event of an emergency. The untreated water is pumped approximately two miles to the filtration plant through pipes owned by the Company.

The Susquehanna River Pumping Station is located on the western shore of the Susquehanna River several miles south of Wrightsville, PA.  The pumping station is equipped with three Floway Vertical Turbine pumps rated at 6 million gallons per day each.  The pumping station pumps water from the Susquehanna River approximately 15 miles through a combination of 30" and 36" ductile iron main to the Company's upper impounding dam, located at Lake Redman.

In 2016, the Company began the construction of a new pumping station in York Township adjacent to Lake Redman.  The pumping station is designed to provide a redundant source with the capacity to pump 20 million gallons per day of untreated water through a Company owned 36-inch force main approximately 3.5 miles to the filtration plant, meeting the Company's daily consumption needs.  Construction began on the new pumping station and force main in September 2016.  The pumping station and force main are expected to be put into service in 2017.

Treatment Facilities

The Company's water filtration plant is located in Spring Garden Township about one-half mile south of the City of York. Water at this plant is filtered through twelve dual media filters having a rated capacity of 39.0 million gallons per day, or MGD, with a maximum supply of 42.0 MGD for short periods if necessary.  Based on an average daily consumption in 2016 of approximately 18.8 million gallons, the Company believes the pumping and filtering facilities are adequate to meet present and anticipated demands.  In 2007, the Company began upgrading the facility to increase capacity to meet peak demands, for operational redundancy, and for future growth.  The final phase of the upgrade, replacement of the filter media, began in 2013 and was completed in 2016, allowing the Company to have its filter capacity rerated to 39.0 MGD from 31.0 MGD.

The Company's sediment recycling facility is located adjacent to its water filtration plant.  This state of the art facility employs cutting edge technology to remove fine, suspended solids from untreated water.  The Company estimates that through this energy-efficient, environmentally friendly process, approximately 600 tons of sediment will be removed annually, thereby improving the quality of the Codorus Creek watershed.

The Company's two wastewater treatment facilities are located in East Manchester and Lower Windsor Townships.  The two wastewater treatment plants are each small, packaged, extended aeration activated sludge facilities with a combined average daily flow capacity of 167,000 gallons.  With a projected maximum daily demand of 77,000 gallons, the plants' flow paths offer both capacity and operational redundancy for maintenance, high flow events, and potential growth.

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Distribution and Collection

The distribution system of the Company has approximately 967 miles of water main lines which range in diameter from 2 inches to 36 inches.  The distribution system includes 31 booster stations and 33 standpipes and reservoirs capable of storing approximately 58.0 million gallons of potable water.  All booster stations are equipped with at least two pumps for protection in case of mechanical failure.  Following a deliberate study of customer demand and pumping capacity, the Company installed standby generators at all critical booster stations to provide an alternate energy source or emergency power in the event of an electric utility interruption.

The two wastewater collection systems of the Company have a combined approximate 38,270 feet of 6 inch and 8 inch gravity collection mains and 4,800 feet of 6" pressure force main along with 3 sewage pumping stations each rated at 80 gallons per minute.

The Company added a third wastewater collection system containing approximately 57,000 feet of primarily 8 inch gravity collection mains in early 2017.

Other Properties

The Company's distribution center and material and supplies warehouse are located in Springettsbury Township, and are composed of three one-story concrete block buildings aggregating 30,680 square feet.

The administrative and executive offices of the Company are located in one three-story and one two-story brick and masonry buildings, containing a total of approximately 21,861 square feet, in the City of York, Pennsylvania.

All of the Company's properties described above are held in fee by the Company.  There are no material encumbrances on such properties.

In 1976, the Company entered into a Joint Use and Park Management Agreement with York County under which the Company licensed use of certain of its lands and waters for public park purposes for a period of 50 years.  Under the agreement, York County has agreed not to erect a dam upstream on the East Branch of the Codorus Creek or otherwise obstruct the flow of the creek.

Item 3. Legal Proceedings.

There are no material legal proceedings involving the Company.

Item 4. Mine Safety Disclosures.

Not applicable.

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PART II

Item 5. Market for the Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities.

Market for Common Stock and Dividends

The common stock of The York Water Company is traded on the NASDAQ Global Select Market (Symbol "YORW").  Quarterly price ranges and cash dividends per share for the last two years follow:

	2016						2015
	High		Low		Dividend*		High		Low		Dividend*
1st Quarter	$	30.99	$	23.79	$	0.1555	$	24.97	$	21.08	$	0.1495
2nd Quarter		33.40		26.54		0.1555		25.99		20.69		0.1495
3rd Quarter		32.24		27.68		0.1555		22.72		19.69		0.1495
4th Quarter		39.85		28.61		0.1602		26.67		20.93		0.1555

*Cash dividends per share reflect dividends declared at each dividend date.

Prices listed in the above table are sales prices as listed on the NASDAQ Global Select Market.  Shareholders of record (excluding individual participants in securities positions listings) as of December 31, 2016 numbered approximately 2,052.

Dividend Policy

Dividends on the Company's common stock are declared by the Board of Directors and are normally paid in January, April, July and October.  Dividends are paid based on shares outstanding as of the stated record date, which is ordinarily the last day of the calendar month immediately preceding the dividend payment.

The dividend paid on the Company's common stock on January 17, 2016 was the 584th consecutive dividend paid by the Company.  The Company has paid consecutive dividends for its entire history, since 1816.  The policy of the Company's Board of Directors is currently to pay cash dividends on a quarterly basis.  The dividend rate has been increased annually for twenty consecutive years.  The Company's Board of Directors declared dividend number 585 in the amount of $0.1602 per share at its January 2017 meeting.  The dividend is payable on April 17, 2017 to shareholders of record as of February 28, 2017.  Future cash dividends will be dependent upon the Company's earnings, financial condition, capital demands and other factors and will be determined by the Company's Board of Directors.  See Note 4 to the Company's financial statements included herein for restrictions on dividend payments.

Purchases of Equity Securities by the Company

On March 11, 2013, the Board of Directors authorized a share repurchase program granting the Company authority to repurchase up to 1,200,000 shares of the Company's common stock from time to time.  The stock repurchase program has no specific end date and under the stock repurchase program, the Company may repurchase shares in the open market or through privately negotiated transactions.  The Company may suspend or discontinue the repurchase program at any time.  The Company did not repurchase any shares that were not part of the publicly announced plan during the quarter ended December 31, 2016.

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The following table summarizes the Company's purchases of its common stock for the quarter ended December 31, 2016.

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as a Part of Publicly Announced Plans or Programs		Maximum Number of Shares that May Yet Be Purchased Under the Plans or Programs
Oct. 1 – Oct. 31, 2016		29,922	$	28.89		29,922		655,233
Nov. 1 – Nov. 30, 2016		-	$	-		-		655,233
Dec. 1 – Dec. 31, 2016		-	$	-		-		655,233
Total		29,922	$	28.89		29,922		655,233

The Company's loan agreements contain various covenants and restrictions regarding dividends and share repurchases.  As of December 31, 2016, management believes it was in compliance with all of these restrictions.  See Note 4 for additional information regarding these restrictions.

The Company will fund repurchases under the share repurchase program with internally generated funds and borrowings under its credit facilities, if necessary.

Performance Graph

The following line graph presents the annual and cumulative total shareholder return for The York Water Company Common Stock over a five-year period from 2011 through 2016, based on the market price of the Common Stock and assuming reinvestment of dividends, compared with the cumulative total shareholder return of companies in the S&P 500 Index and a peer group made up of publicly traded water utilities, also assuming reinvestment of dividends.  The peer group companies include:  American States, American Water, Aqua America, Artesian Resources, California Water Service, Connecticut Water, Middlesex Water and San Jose Water.

	2011		2012		2013		2014		2015		2016
The York Water Company		100.00		102.60		125.70		143.19		157.89		246.79
S&P 500 Index – Total Returns		100.00		116.00		153.57		174.60		177.01		198.18
Peer Group		100.00		119.51		141.06		173.06		195.47		238.94

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Item 6. Selected Financial Data.

(All dollar amounts are stated in thousands of dollars.)

	Summary of Operations
For the Year	2016			2015			2014			2013			2012
Operating revenues	$	47,584		$	47,089		$	45,900		$	42,383		$	41,447
Operating expenses		24,696			24,428			23,823			21,622			20,874
Operating income		22,888			22,661			22,077			20,761			20,573
Interest expense*		5,037			4,976			4,996			5,267			5,249
Gain on sale of land		36			-			316			-			-
Other income (expenses), net*		(632	)		(456	)		(1,036	)		(28	)		(415	)
Income before income taxes		17,255			17,229			16,361			15,466			14,909
Income taxes		5,409			4,740			4,877			5,812			5,606
Net income	$	11,846		$	12,489		$	11,484		$	9,654		$	9,303
Per Share of Common Stock
Book value	$	8.87		$	8.51		$	8.15		$	7.98		$	7.73
Earnings per share:
Basic		0.92			0.97			0.89			0.75			0.72
Diluted		0.92			0.97			0.89			0.75			0.72
Weighted average number of shares outstanding during the year:
Basic		12,845,955			12,831,687			12,879,912			12,928,040			12,847,160
Diluted		12,845,973			12,831,687			12,879,912			12,928,040			12,847,160
Cash dividends declared per share		0.6267			0.6040			0.5788			0.5580			0.5391
Utility Plant
Original cost, net of acquisition adjustments	$	339,745		$	325,691		$	313,003		$	298,670		$	289,579
Construction expenditures		13,158			13,844			14,139			9,852			11,543
Other
Total assets	$	320,494		$	310,533		$	300,708		$	280,123		$	279,991
Long-term debt including current portion*		84,653			84,562			82,312			82,741			82,684

*Certain prior year amounts have been reclassified to conform to the 2016 presentation.

For Management's Discussion and Analysis of Financial Condition and Results of Operations, please refer to Item 7 of this Annual Report.

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Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

(All dollar amounts are stated in thousands of dollars.)

Overview

The York Water Company (the "Company") is the oldest investor-owned water utility in the United States, operated continuously since 1816. The Company also operates two wastewater collection and treatment systems.  The Company is a purely regulated water and wastewater utility.  Profitability is largely dependent on water revenues.  Due to the size of the Company and the limited geographic diversity of its service territory, weather conditions, particularly rainfall, economic, and market conditions can have an adverse effect on revenues.  Market conditions and the economy in general have been improving, albeit slowly.  While there was little organic growth in the customer base, the Company increased revenues in 2016 compared to 2015 as a result of acquisitions, and increased sewer billing and collection service revenue.

The Company's business does not require large amounts of working capital and is not dependent on any single customer or a very few customers for a material portion of its business.  In 2016, operating revenue was derived from the following sources and in the following percentages: residential, 63%; commercial and industrial, 29%; and other, 8% which is primarily from the provision for fire service, but includes other water and wastewater service-related income.  The customer mix helps to reduce volatility in consumption.

The Company seeks to grow revenues by increasing the volume of water sold through increases in the number of customers served, making timely and prudent investments in infrastructure replacements, expansion and improvements, and timely filing for rate increases.  The Company continuously looks for acquisition and expansion opportunities both within and outside its current service territory as well as through contractual services and bulk water supply.  The Company's wastewater business provides additional opportunities to expand.

The Company has entered into agreements with several municipalities to provide sewer billing and collection services.  The Company also has a service line protection program on a targeted basis.  Opportunities to expand both initiatives are being pursued to further diversify the business.

In addition to increasing revenue, the Company consistently focuses on minimizing costs without sacrificing water quality or customer service.  Paperless billing, expanding online services, negotiation of favorable electric, banking and other costs, as well as taking advantage of the IRS tangible property regulations are examples of some of the Company's efforts to minimize costs.

Performance Measures

Company management uses financial measures including operating revenues, net income, earnings per share and return on equity to evaluate its financial performance.  Additional statistical measures including number of customers, customer complaint rate, annual customer rates and the efficiency ratio are used to evaluate performance quality.  These measures are calculated on a regular basis and compared with historical information, budget and the other publicly-traded water and wastewater companies.

The Company's performance in 2016 was strong under the above measures.  Increases in the number of customers mostly as a result of acquisitions and higher sewer billing and collection service resulted in higher revenue and offset the higher operating and other net expenses recorded in 2016.  The Company did incur higher income taxes due to a lower volume of assets improvements eligible for the tax benefit under the IRS tangible property regulations, or TPR.  The overall effect was a decrease in net income in 2016 over 2015 of 5.1% and a return on year end common equity of 10.4%, lower than last year but higher than the five year historical average of 10.1%.

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The efficiency ratio, which is calculated as net income divided by revenues, is used by management to evaluate its ability to control expenses.  Over the five previous years, the Company's ratio averaged 23.8%.  In 2016, the ratio was higher than the average at 24.9% due primarily to lower income taxes than are included in the historical average.  Management is confident that its ratio will compare favorably to that of its peers.  Management continues to look for ways to decrease expenses and increase efficiency as well as to file for rate increases promptly when needed.

2016 Compared with 2015

Net income for 2016 was $11,846, a decrease of $643, or 5.1%, from net income of $12,489 for 2015.  The primary contributing factor to the decrease in net income was higher income taxes.

Operating revenues for the year increased $495, or 1.1%, from $47,089 for 2015 to $47,584 for 2016.  The primary reasons for the increase in revenues were an increase in customers, and higher sewer billing and collection service revenue.  The average number of customers served in 2016 increased as compared to 2015 by 974 customers, from 65,667 to 66,641 customers, due primarily to recent acquisitions.  Lower per capita consumption due mainly to a prior year emergency interconnection partially offset the increase.  Total per capita consumption for 2016 was 1.1% lower than 2015, but just 0.2% lower excluding the prior year benefit of the emergency interconnection.  The Company expects revenues for 2017 to show a modest increase over 2016 due to an increase in the number of water and wastewater customers from recently announced acquisitions and modest organic growth.  Other regulatory actions and weather patterns could impact results.

Operating expenses for the year increased $268, or 1.1%, from $24,428 for 2015 to $24,696 for 2016.  The increase was primarily due to higher expenses of approximately $271 for depreciation, $118 for wages, $60 for shareholder expenses and $54 for maintenance.  The increased expenses were partially offset by approximately $149 for wages and benefits that were able to be capitalized, and reduced rate case expense of $80.  Other expenses decreased by a net of $6.  In 2017, the Company expects depreciation expense to continue to rise due to additional investment in utility plant, and other expenses to increase at a moderate rate as costs to maintain and extend the distribution system continue to rise, environmental compliance costs are added (see Note 10 to the financial statements included herein for additional information), and the costs to integrate the West York Borough wastewater collection system are incurred.  Overall, increases in operating expenses are expected to outpace growth in revenue in the short-term.

Interest expense on debt for 2016 increased $83, or 1.6%, from $5,182 for 2015 to $5,265 for 2016.  The increase was due to an increase in long-term debt outstanding resulting from the bond issuance in July 2015.  Interest expense for 2017 is expected to be higher due to recent increases in short-term interest rates and expected line of credit borrowings.

Allowance for funds used during construction increased $22, from $206 in 2015 to $228 in 2016, due to a higher volume of eligible construction.  Allowance for funds used during construction for 2017 is expected to increase based on a projected increase in the amount of eligible construction, particularly the new pumping station and force main.

A non-recurring gain on the sale of land of $36 was recorded in 2016 as a result of the sale of nonoperating property from a recent acquisition.  No additional land sales are anticipated at this time.

Other income (expenses), net for 2016 reflects increased expenses of $176 as compared to the same period of 2015.  Higher retirement expenses of $256 were the primary reason for the increase.  The increased expenses were partially offset by higher earnings on life insurance policies of $78.  Other expenses decreased by a net of approximately $2 as compared to the same period of 2015.  For 2017, other income (expenses) will be largely determined by the change in market returns and discount rates for retirement programs and related assets.

Income taxes for 2016 increased $669, or 14.1%, compared to 2015 due to a lower volume of asset improvements eligible for the tax benefit of the IRS TPR.  (See the Income Taxes, Deferred Income Taxes and Uncertain Tax Positions section included herein for additional details.)  The Company's effective tax rate was 31.3% for 2016 and 27.5% for 2015.  The Company expects the effective tax rate to be approximately 28% to 32% for 2017 due to the continued expensing of asset improvements that would have been capitalized for tax purposes prior to the implementation of the TPR.  The Company's effective tax rate will vary depending on the level of eligible asset improvements that are placed in service each period.

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2015 Compared with 2014

Net income for 2015 was $12,489, an increase of $1,005, or 8.8%, from net income of $11,484 for 2014.  The primary contributing factors to the increase in net income were higher operating revenues, lower retirement expenses and reduced charitable contributions.  The increased income was partially offset by higher operating expenses and a non-recurring prior year gain on the sale of land.

Operating revenues for the year increased $1,189, or 2.6%, from $45,900 for 2014 to $47,089 for 2015.  The primary reason for the increase was a rate increase effective February 28, 2014.  Additionally, revenues increased from an interconnection with a neighboring municipality to provide water due to an emergency event and from an increase in customers.  The average number of customers served in 2015 increased as compared to 2014 by 894 customers, from 64,773 to 65,667 customers, due primarily to recent acquisitions.  Total per capita consumption for 2015 was just 0.1% lower than 2014 mainly due to the emergency interconnection.  Without the interconnection, total per capita consumption for 2015 was 1.0% lower than 2014.

Operating expenses for the year increased $605, or 2.5%, from $23,823 for 2014 to $24,428 for 2015.  The increase was primarily due to higher depreciation expense of approximately $219, increased water treatment chemical usage of approximately $131 due to weather conditions, and higher pension expense of approximately $118.  Also adding to the increase were higher expenses of approximately $71 for sediment hauling and a survey of piping at the water treatment plant, $45 for insurance, $33 for information technology strategic planning and $31 for credit card fees due to increased on-line payments.  The increased expenses were partially offset by a reduction of $32 for power.  Other expenses decreased by a net of $11.

Interest expense on debt for 2015 decreased $24, or 0.5%, from $5,206 for 2014 to $5,182 for 2015.  The decrease was due to the 2014 bond refinancing at a lower interest rate. The decrease was partially offset by an increase in interest due to additional long-term debt outstanding.

Allowance for funds used during construction decreased $4, from $210 in 2014 to $206 in 2015, due to a lower volume of eligible construction.

A non-recurring gain on the sale of land of $316 was recorded in 2014 as a result of a PennDOT realignment project which included a portion of the Company's distribution facility property.

Other income (expenses), net for 2015 reflects reduced expenses of $580 as compared to 2014.  The net change was primarily due to reduced retirement expense of $443 and lower charitable contributions of $296.  Other expenses aggregating approximately $6 increased as compared to 2014.  The reduced expenses were partially offset by lower earnings on life insurance policies of approximately $165.

Income taxes for 2015 decreased $137, or 2.8%, compared to 2014 due to the continued tax benefit of the IRS TPR.  The Company's effective tax rate was 27.5% for 2015 and 29.8% for 2014.

Rate Developments

See Note 8 to the Company's financial statements included herein for a discussion of its rate developments.

The benefit from the implementation of the IRS TPR impacts the rate matters of the Company.  Earnings in excess of the regulatory benchmark prevented the collection of a distribution system improvement charge in 2016, and the Company anticipates it may do so again in 2017.  It also may lengthen the amount of time between rate increase requests.  When the Company does file for its next rate increase, which it expects to do in 2017, the PPUC will take into account the lower income taxes which resulted from the implementation of the IRS TPR, effectively reducing the amount of revenue required in future years and lowering the Company's rate increase request.

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Acquisitions

See Note 2 to the Company's financial statements included herein for a discussion of completed acquisitions included in financial results.

On October 8, 2013, the Company signed an agreement to purchase the wastewater assets of SYC WWTP, L.P. in Shrewsbury and Springfield Townships, York County, Pennsylvania.  Completion of the acquisition is contingent upon receiving approval from all required regulatory authorities.  Closing is expected in the second half of 2017 at which time the Company will add approximately 30 commercial and industrial wastewater customers.

On January 6, 2017, the Company completed the acquisition of the water assets of Stockham's Village Mobile Home Park in Adams County, Pennsylvania.  The Company began operating the existing system through an interconnection with its current distribution system on January 9, 2017.  The acquisition resulted in the addition of approximately 80 new water customers.

On February 23, 2017, the Company completed the acquisition of the wastewater collection assets of West York Borough in York County, Pennsylvania.  The Company began operating the existing collection facilities on February 27, 2017.  The acquisition resulted in the addition of approximately 1,700 wastewater customers, representing more than 2,200 units.

In total, these acquisitions are expected to be immaterial to total company results.  The Company is also pursuing other bulk water contracts and water and wastewater acquisitions in and around its service territory to help offset any further declines in per capita water consumption and to grow its business.

Capital Expenditures

During 2016, the Company invested $13,158 in construction expenditures for routine items, further upgrades to its water treatment facilities, information and communication technology, and the commencement of construction on an additional raw water pumping station and force main, as well as various replacements of infrastructure.  The Company replaced and relined approximately 42,000 feet of main in 2016.  In addition, the Company invested $50 in the acquisition of water systems during 2016.  The Company was able to fund construction expenditures and acquisitions using internally-generated funds, proceeds from its stock purchase plans, and customer advances and contributions from developers, municipalities, customers or builders.  See Notes 1, 4 and 5 to the Company's financial statements included herein.

The Company anticipates construction and acquisition expenditures for 2017 and 2018 of approximately $22,800 and $15,600, respectively, exclusive of any acquisitions not yet approved.  In addition to routine transmission and distribution projects, a portion of the anticipated 2017 and 2018 expenditures will be for additional main extensions, completion of an additional raw water pumping station and force main, the beginning of armoring one of the dams, and various replacements of infrastructure.  The Company intends to use primarily internally-generated funds for its anticipated 2017 and 2018 construction and fund the remainder through line of credit borrowings, proceeds from its stock purchase plans and customer advances and contributions (see Note 1 to the Company's financial statements included herein).  Customer advances and contributions are expected to account for between 5% and 10% of funding requirements in 2017 and 2018.  Potential debt and equity offerings may be utilized if required.  The Company believes it will have adequate credit facilities and access to the capital markets, if necessary, during 2017 and 2018, to fund anticipated construction and acquisition expenditures.

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Liquidity and Capital Resources

Cash

The Company manages its cash through a cash management account that is directly connected to a line of credit.  Excess cash generated automatically pays down outstanding borrowings under the line of credit arrangement.  If there are no outstanding borrowings, the cash is used as an earnings credit to reduce banking fees.  Likewise, if additional funds are needed beyond what is generated internally for payroll, to pay suppliers, or for debt service, funds are automatically borrowed under the line of credit.  The Company utilized a significant portion of its cash on hand for cash outflows, specifically a $2,300 contribution to its pension trusts and its quarterly dividend payments, but did not use its lines of credit during the year ended December 31, 2016.  The Company has built its cash through internally-generated funds, accumulating a cash balance of $4,209 as of December 31, 2016.  The Company expects the cash balance to be fully utilized in the first half of 2017, after which the cash management facility and the other lines of credit are expected to provide the necessary liquidity and funding for the Company's operations, capital expenditures, acquisitions and potential buybacks of stock for the foreseeable future.

Accounts Receivable

The accounts receivable balance tends to follow the change in revenues but is also affected by the timeliness of payments by customers and the level of the reserve for doubtful accounts.  In 2016, the accounts receivable balance increased due to an increase in revenue and a slight decrease in percentage of prior months billings paid by customers in December 2016 as compared to December 2015.  Prior to December, the Company experienced an improvement in the timeliness of payments by its customers.  A reserve is maintained at a level considered adequate to provide for losses that can be reasonably anticipated based on inactive accounts with outstanding balances.  Management periodically evaluates the adequacy of the reserve based on past experience, agings of the receivables, adverse situations that may affect a customer's ability to pay, current economic conditions, and other relevant factors.  If the status of these factors deteriorates, the Company may incur additional expenses for uncollectible accounts and experience a reduction in its internally-generated funds.  The improvement in the timeliness of payments by customers allowed the Company to reduce its allowance for doubtful accounts in 2016.

Internally-generated Funds

The amount of internally-generated funds available for operations and construction depends on the Company's ability to obtain timely and adequate rate relief, changes in regulations, customers' water usage, weather conditions, customer growth and controlled expenses.  In 2016, the Company generated $19,365 internally as compared to $20,710 in 2015 and $18,766 in 2014.  The decrease from 2015 was primarily due to a decrease in net income, an increase in accounts receivable and higher income taxes paid.

Credit Lines

Historically, the Company has borrowed $15,000 to $20,000 under its lines of credit before refinancing with long-term debt or equity capital.  As of December 31, 2016, the Company maintained unsecured lines of credit aggregating $41,500 with four banks at interest rates ranging from LIBOR plus 1.20% to LIBOR plus 1.25%.  The Company had no outstanding borrowings under any of its lines of credit as of December 31, 2016.  The Company plans to renew a $5,000 line of credit that expires in June 2017 and a $10,000 line of credit that expires in September 2017 under similar terms and conditions.

The Company has taken steps to manage the risk of reduced credit availability.  It has maintained committed lines of credit that cannot be called on demand and obtained a 2-year revolving maturity on its largest facilities.  One of the Company's banks recently increased the available amount and reduced the interest rate on its line of credit, and a new relationship was established with another bank for a committed line of credit at an interest rate matching the lowest rate currently offered.  Despite these factors, there is no guarantee that the Company will be able to obtain sufficient lines of credit with favorable terms in the future.  If the Company is unable to refinance its line of credit borrowings with long-term debt or equity when necessary, it may have to eliminate or postpone capital expenditures.  Management believes the Company will have adequate capacity under its current lines of credit to meet financing needs throughout 2017.

Long-term Debt

The Company's loan agreements contain various covenants and restrictions.  Management believes it is currently in compliance with all of these restrictions.  See Note 4 to the Company's financial statements included herein for additional information regarding these restrictions.

Page 23

The Pennsylvania Economic Development Financing Authority Series 2014 bonds contain special redemption provisions.  Under these provisions, representatives of deceased beneficial owners have the right to request redemption prior to the stated maturity of all or part of their holding in the bonds.  The Company is not obligated to redeem any individual holding exceeding $25, or aggregate holdings exceeding $300 in any annual period.  In 2016, the Company retired $10 of the bonds under these provisions.  In 2015, no bonds were retired under these provisions.  Currently, no additional bonds that meet the special provisions have been tendered for redemption.

The York County Industrial Development Authority Series 2006 bonds are subject to optional redemption provisions that allow the Company to redeem all or a portion of the bonds on or after October 1, 2016.  The Company may refinance these bonds prior to maturity to take advantage of lower interest rates.

The Company's total long-term debt as a percentage of the total capitalization, defined as total common stockholders' equity plus total long-term debt, was 43.4% as of December 31, 2016, compared with 44.5% as of December 31, 2015.  The Company expects to allow the debt percentage to trend upward until it approaches fifty percent before considering additional equity.  A debt to total capitalization ratio between forty-six and fifty percent has historically been acceptable to the PPUC in rate filings.  Due to its recent ability to generate and retain more cash internally, the Company has been able to keep its ratio below fifty percent.  See Note 4 to the Company's financial statements included herein for the details of its long-term debt outstanding as of December 31, 2016.

Income Taxes, Deferred Income Taxes and Uncertain Tax Positions

The Company has a substantial deferred income tax asset primarily due to the differences between the book and tax balances of the pension and deferred compensation plans.  The Company does not believe a valuation allowance is required due to the expected generation of future taxable income during the periods in which those temporary differences become deductible.

The Company has seen an increase in its deferred income tax liability amounts primarily as a result of the accelerated and bonus depreciation deduction available for federal tax purposes which creates differences between book and tax depreciation expense.  The Company expects this trend to continue as it makes significant investments in capital expenditures subject to accelerated and bonus depreciation or TPR.

The Company filed for a change in accounting method under the IRS TPR effective in 2014.  Under the change in accounting method, the Company is permitted to deduct the costs of certain asset improvements that were previously being capitalized and depreciated for tax purposes as an expense on its income tax return.  The Company was permitted to make this deduction for prior years (the "catch-up deduction") and each year going forward, beginning with 2014 (the "ongoing deduction").  As a result of the catch-up deduction, income tax benefits of $4,314 were deferred as a regulatory liability as of December 31, 2014.  The catch-up deduction resulted in a decrease in current income taxes payable and an increase to regulatory liabilities during 2014.  In 2015, upon final determination of the TPR amounts for its income tax return, the Company reclassified the portion of TPR related to dispositions to deferred taxes and deferred tax liabilities in compliance with the IRS regulations.  The Company will seek approval from the PPUC in its next rate filing to amortize the remaining catch-up deduction of $3,887, recorded as a regulatory liability.

As a result of the ongoing deduction, the net income tax benefits of $962, $1,438 and $1,342 for the years ended December 31, 2016, 2015 and 2014, respectively, reduced income tax expense and flowed-through to net income.  The ongoing deduction results in a reduction in the effective income tax rate, a net reduction in income tax expense, and a reduction in the amount of income taxes currently payable.  Both the ongoing and catch-up deductions result in increases to deferred tax liabilities and regulatory assets representing the appropriate book and tax basis difference on capital additions.  The Company expects to continue to expense these asset improvements in the future, resulting in an effective tax rate of 28% to 32%.  The effective tax rate will vary depending on the level of eligible asset improvements that are placed in service each period.

The Company has determined there are no uncertain tax positions that require recognition as of December 31, 2016.  See Note 3 to the Company's financial statements included herein for additional details regarding income taxes.

Page 24

Common Stock

Common stockholders' equity as a percent of the total capitalization was 56.6% as of December 31, 2016, compared with 55.5% as of December 31, 2015.  The volume of share repurchases and line of credit borrowings, among other things, could reduce this percentage in the future.  It is the Company's intent to target a ratio between fifty and fifty-four percent.

Credit Rating

On March 30, 2016, Standard & Poor's affirmed the Company's credit rating at A-, with a stable outlook.  The Company's ability to maintain its credit rating depends, among other things, on adequate and timely rate relief, which it has been successful in obtaining, its ability to fund capital expenditures in a balanced manner using both debt and equity and its ability to generate cash flow.  In 2017, the Company's objectives are to continue to maximize its funds provided by operations and maintain a strong capital structure in order to be able to attract capital.

Environmental Matters

During its recently completed triennial testing, the Company determined it exceeded the action level for lead at the customer's tap as established by the Lead and Copper Rule, or LCR, issued by the EPA.  The rule allows the Company to have five samples of the 50 high-risk homes tested exceed the action level of 15 parts per billion, or PPB.  The testing found that six properties with lead service lines, all built before 1935, exceeded the action level, and the reported exceedance amount was 1 PPB.  The Company has determined that only 3% of the company-owned service lines in the system are lead.  The Company will be required, per the LCR, to engage in more frequent testing for lead, to provide public education, and annually replace 7% of the remaining company-owned lead service lines in its distribution system.  The Company has announced plans to perform in excess of the required actions.  Specifically, the Company will provide the affected customers with a free water test and a 200 gallon per month credit to flush their line in order to reduce any lead content until their lead service line has been replaced.  The cost of the water tests and flushing credits was $9 for the year ended December 31, 2016 and is expected to be approximately an additional $57 over the next four years.

In addition, the Company has entered into a consent order agreement with the DEP.  Under the agreement, the Company has committed to exceed the LCR replacement schedule by replacing all of the remaining company-owned lead service lines within the next four years.  The cost for these service line replacements was approximately $75 for the year ended December 31, 2016 and is included in utility plant.  Additional replacements are expected to be approximately $2,400 over the next four years, and will be integrated into the Company's annual capital budgets.

Finally, the Company has been granted approval by the PPUC to modify its tariff to allow the replacement of lead customer-owned service lines that are discovered when the Company replaces its lead service lines over four years, and to allow the annual replacement of up to 400 lead customer-owned service lines whenever they are discovered, regardless of the material used for the Company-owned service line over nine years.  The tariff modification allows the Company to replace customer-owned service lines at its own initial cost.  The Company will record the costs as a regulatory asset to be recovered in future base rates to customers, over a reasonable period of at least four but not more than six years.  Replacements are expected to be approximately $2,080 under the four-year tariff modification, assuming all company-owned lead service lines are connected to a customer-owned lead service line.  The Company is unable to develop a total estimated cost of the nine-year tariff modification replacements as it does not know how many customer-owned lead service lines are in use.

Dividends

During 2016, the Company's dividend payout ratios relative to net income and net cash provided by operating activities were 68.0% and 41.1%, respectively.  During 2015, the Company's dividend payout ratios relative to net income and net cash provided by operating activities were 62.0% and 37.1%, respectively.  During the fourth quarter of 2016, the Board of Directors increased the dividend by 3.0% from $0.1555 per share to $0.1602 per share per quarter.

The Company's Board of Directors declared a dividend in the amount of $0.1602 per share at its January 2017 meeting.  The dividend is payable on April 17, 2017 to shareholders of record as of February 28, 2017.  While the Company expects to maintain this dividend amount in 2017, future dividends will be dependent upon the Company's earnings, financial condition, capital demands and other factors and will be determined by the Company's Board of Directors.  See Note 4 to the Company's financial statements included herein for restrictions on dividend payments.

Page 25

Inflation

The Company is affected by inflation, most notably by the continually increasing costs incurred to maintain and expand its service capacity.  The cumulative effect of inflation results in significantly higher facility replacement costs which must be recovered from future cash flows.  The ability of the Company to recover this increased investment in facilities is dependent upon future rate increases, which are subject to approval by the PPUC.  The Company can provide no assurances that its rate increases will be approved by the PPUC; and, if approved, the Company cannot guarantee that these rate increases will be granted in a timely or sufficient manner to cover the investments and expenses for which the rate increase was sought.

Contractual Obligations

The following summarizes the Company's contractual obligations by period as of December 31, 2016:

	Payments due by period
	Total		Less than 1 Year		Years 2 and 3		Years 4 and 5		More than 5 Years
Long-term debt obligations (a)	$	87,488	$	44	$	23,074	$	6,500	$	57,870
Interest on long-term debt (b)		59,496		4,720		8,438		6,440		39,898
Purchase obligations (c)		9,657		9,586		71		-		-
Defined benefit obligations (d)		2,300		2,300		-		-		-
Deferred employee benefits (e)		5,628		308		457		529		4,334
Other deferred credits (f)		2,738		313		513		433		1,479
Total	$	167,307	$	17,271	$	32,553	$	13,902	$	103,581

(a)	Represents debt maturities including current maturities.  Included in the table is a potential payment of $12,000 in Year 2 on the variable rate bonds which would only be due if the bonds were unable to be remarketed.  There is currently no such indication of this happening.  If the bonds are successfully remarketed, they will be due in 2029.
(b)	Excludes interest on the $12,000 variable rate debt as these payments cannot be reasonably estimated.  The interest rate on this issue is reset weekly by the remarketing agent based on then current market conditions.  The interest rate as of December 31, 2016 was 0.80%.
(c)	Represents an approximation of open purchase orders at year end.
(d)	Represents contributions expected to be made to qualified defined benefit plans.  The contribution may increase if the minimum required contribution as calculated under Employee Retirement Income Security Act (ERISA) standards is higher than this amount.  The contribution is also dependent upon the amount recovered in rates charged to customers.  The amount of required contributions in year 2 and thereafter is not currently determinable.
(e)	Represents the obligations under the Company's Supplemental Retirement and Deferred Compensation Plans for executives and management.
(f)	Represents the estimated settlement payments to be made under the Company's interest rate swap contract.

Page 26

In addition to these obligations, the Company makes refunds on Customers' Advances for Construction over a specific period of time based on operating revenues related to developer-installed water mains or as new customers are connected to and take service from such mains.  The refund amounts are not included in the above table because the timing cannot be accurately estimated.  Portions of these refund amounts are payable annually through 2027 and amounts not paid by the contract expiration dates become non-refundable and are transferred to Contributions in Aid of Construction.

See Note 10 to the Company's financial statements included herein for a discussion of its commitments.

Critical Accounting Estimates

The methods, estimates and judgments the Company used in applying its accounting policies have a significant impact on the results reported in its financial statements. The Company's accounting policies require management to make subjective judgments because of the need to make estimates of matters that are inherently uncertain.  The Company's most critical accounting estimates include: regulatory assets and liabilities, revenue recognition, accounting for its pension plans, and income taxes.

Regulatory Assets and Liabilities

Generally accepted accounting principles define accounting standards for companies whose rates are established by or are subject to approval by an independent third-party regulator.  In accordance with the accounting standards, the Company defers costs and credits on its balance sheet as regulatory assets and liabilities when it is probable that these costs and credits will be recognized in the rate-making process in a period different from when the costs and credits were incurred.  These deferred amounts are then recognized in the statement of income in the period in which they are reflected in customer rates.  If the Company later finds that these assets and liabilities cannot be included in rate-making, they are adjusted appropriately.  See Note 1 for additional details regarding regulatory assets and liabilities.

Revenue Recognition

Operating revenues include amounts billed to metered water and certain wastewater customers on a cycle basis and unbilled amounts based on both actual and estimated usage from the latest meter reading to the end of the accounting period.  Estimates are based on average daily usage for those particular customers.  The unbilled revenue amount is recorded as a current asset on the balance sheet.  Actual results could differ from these estimates and would result in operating revenues being adjusted in the period in which the actual usage is known.  Based on historical experience, the Company believes its estimate of unbilled revenues is reasonable.

Pension Accounting

Accounting for defined benefit pension plans requires estimates of future compensation increases, mortality, the discount rate, and expected return on plan assets as well as other variables.  These variables are reviewed annually with the Company's pension actuary.  The Company used a compensation increase of 3% in 2015, and increases of 2.5% to 3.0% in 2016.

The Company adopted a new mortality table in 2014, the RP-2014, using the white collar table for the administrative and general plan and the blue collar table for the union plan.  Using the new mortality table increased the life expectancy of pension plan participants, resulting in a significant increase to the pension benefit obligation, and ultimately, a decline in the Company's funded status of the plans.  In 2015, the Social Security Administration released new underlying data creating an Adjusted RP-2014 mortality table.  A new mortality improvement scale was released in 2015, the MP-2015, and again in 2016, the MP-2016.  The Company adopted each of the improvement scales in the years they were released.  These changes partially offset the increase in the pension benefit obligation realized in 2014.

Page 27

The Company selected its December 31, 2016 and 2015 discount rates based on the Citigroup Pension Liability Index.  This index uses the Citigroup spot rates for durations out to 30 years and matches them to expected disbursements from the plan over the long term.  The Company believes this index most appropriately matches its pension obligations.  The present values of the Company's future pension obligations were determined using a discount rate of 4.00% at December 31, 2016 and 4.20% at December 31, 2015.

Adopting a new mortality table that represents a change in life expectancy and choosing a different discount rate normally changes the amount of pension expense and the corresponding liability.  In the case of the Company, these items change its liability, but do not have an impact on its pension expense.  The PPUC, in a previous rate settlement, agreed to grant recovery of the Company's contribution to the pension plans in customer rates.  As a result, under the accounting standards regarding rate-regulated activities, expense in excess of the Company's pension plan contribution can be deferred as a regulatory asset and expensed as contributions are made to the plans and are recovered in customer rates.  Therefore, these changes affect regulatory assets rather than pension expense.

The Company's estimate of the expected return on plan assets is primarily based on the historic returns and projected future returns of the asset classes represented in its plans.  The target allocation of pension assets is 50% to 70% equity securities, 30% to 50% fixed income securities, and 0% to 10% cash reserves.  The Company used 7% as its estimate of expected return on assets in 2015.  The Company reduced the expected return in 2016 to 6.75% as estimates of asset returns over the next several years are expected to be weaker than they have been in the past.  A decrease in the expected pension return would normally cause an increase in pension expense; however due to the aforementioned rate settlement, the Company's expense would continue to be equal to its contributions to the plans.  The change would instead be recorded in regulatory assets.

Lower discount rates and underperformance of assets could cause future required contributions and expense to increase substantially.  If this were to happen, the Company would have to consider changes to its pension plan benefits and possibly request additional recovery of expenses through increased rates charged to customers.  See Note 7 to the Company's financial statements included herein for additional details regarding the pension plans.

Income Taxes

The Company estimates the amount of income tax payable or refundable for the current year and the deferred income tax liabilities and assets that results from estimating temporary differences resulting from the treatment of certain items, such as depreciation, for tax and financial statement reporting.  Generally, these differences result in the recognition of a deferred tax asset or liability on the balance sheet and require the Company to make judgments regarding the probability of the ultimate tax impact of the various transactions entered into.  Based on these judgments, it may require tax reserves or valuation allowances on deferred tax assets to reflect the expected realization of future tax benefits.  The Company believes its determination of what qualifies as a repair expense tax deduction versus a capital cost as it relates to the IRS TPR ongoing and catch-up deductions is consistent with the regulations.  Actual income taxes could vary from these estimates and changes in these estimates could increase income tax expense in the period that these changes in estimates occur.

Other critical accounting estimates are discussed in the Significant Accounting Policies Note to the Financial Statements.

Page 28

Off-Balance Sheet Transactions

The Company does not use off-balance sheet transactions, arrangements or obligations that may have a material current or future effect on financial condition, results of operations, liquidity, capital expenditures, capital resources or significant components of revenues or expenses.  The Company does not use securitization of receivables or unconsolidated entities. For risk management purposes, the Company uses a derivative financial instrument, an interest rate swap agreement discussed in Note 4 to the financial statements included herein.  The Company does not engage in trading or other risk management activities, does not use other derivative financial instruments for any purpose, has no material lease obligations, no guarantees and does not have material transactions involving related parties.

Impact of Recent Accounting Pronouncements

See Note 1 to the Company's financial statements included herein for a discussion on the effect of new accounting pronouncements.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk.

The Company's operations are exposed to market risks primarily as a result of changes in interest rates under its lines of credit.  As of February 2017, the Company has unsecured lines of credit with four banks having a combined maximum availability of $41,500.  The first line of credit, in the amount of $13,000, is a committed line of credit with a revolving 2-year maturity (currently May 2018), and carries an interest rate of LIBOR plus 1.20%.  The second line of credit, in the amount of $11,000, is a committed line of credit, which matures in May 2018 and carries an interest rate of LIBOR plus 1.25%.  The third line of credit, in the amount of $7,500, is a committed line of credit, which matures in June 2017 and carries an interest rate of LIBOR plus 1.25%.  The fourth line of credit, in the amount of $10,000, is a committed line of credit, which matures in September 2017 and carries an interest rate of LIBOR plus 1.20%.  The Company had no outstanding borrowings under any of its lines of credit as of December 31, 2016.  Other than lines of credit, the Company has long-term fixed rate debt obligations that are not subject to interest rate risk as discussed in Note 4 to the financial statements included herein, and a variable rate PEDFA loan agreement, which is subject to minimal market risk, described below.

In May 2008, the PEDFA issued $12,000 aggregate principal amount of PEDFA Exempt Facilities Revenue Bonds, Series A (the "Bonds").  The proceeds of this bond issue were used to refund the $12,000 PEDFA Exempt Facilities Revenue Bonds, Series B of 2004 which were refunded due to bond insurer downgrading issues.  The PEDFA then loaned the proceeds to the Company pursuant to a variable interest rate loan agreement with a maturity date of October 1, 2029.  In connection with the loan agreement, the Company retained its interest rate swap agreement whereby the Company exchanged its floating rate obligation for a fixed rate obligation.  The purpose of the interest rate swap is to manage the Company's exposure to fluctuations in the interest rate.  If the interest rate swap agreement works as intended, the receive rate on the swap should approximate the variable rate the Company pays on the PEDFA Series A Bond Issue, thereby minimizing its risk.  See Note 4 to the Company's financial statements included herein.

The table below provides information about the Company's financial instruments that are sensitive to changes in interest rates, including long-term debt obligations and the interest rate swap.  For debt obligations, the table presents principal cash flows and related weighted average interest rates by expected maturity dates.  For the interest rate swap, the table presents the undiscounted net payments and weighted average interest rates by expected maturity dates.  Notional amounts are used to calculate the contractual payments to be exchanged under the contract.  Weighted average variable rates are based on implied forward rates in the yield curve at the reporting date.

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	Expected Maturity Date
Liabilities	2017	2018	2019	2020	2021	Thereafter	Total	Fair Value
Long-term debt:
Fixed Rate	$44	$44	$11,030	$6,500	$0	$57,870	$75,488	$87,000
Average interest rate	1.00%	1.00%	9.89%	10.05%	0.00%	5.14%	6.25%
Variable Rate	-	$12,000	-	-	-	-	$12,000	$12,000
Interest rate	0.80%	0.80%	-	-	-	-	0.80%

	Expected Maturity Date
Interest Rate Derivatives	2017	2018	2019	2020	2021	Thereafter	Total	Fair Value
Interest Rate Swap – Notional Value $12,000								$2,292
Variable to Fixed *	$313	$273	$240	$222	$211	$1,479	$2,738
Average pay rate	3.16%	3.16%	3.16%	3.16%	3.16%	3.16%	3.16%
Average receive rate	0.55%	0.91%	1.15%	1.30%	1.40%	1.59%	1.38%
*Represents undiscounted net payments.

The variable rate portion of the liabilities section of the table includes the $12,000 variable rate loan potentially due in 2018, as the underlying bonds could be tendered at any time.  If all of the bonds were tendered and could not be remarketed, the earliest that the Company would have to buy them back would be fourteen months from the date of notification.  As of the date of this report, there had been no such notification.  If the bonds are able to be remarketed as intended for the term of the bonds, the loan will be due in October 2029.  The interest rate of 0.80% on the $12,000 variable rate loan represents the rate paid to bondholders for the PEDFA Series A issue at December 31, 2016.  This rate is used for 2017 and 2018, but it may not be indicative of the actual rate.

Other than the interest rate swap, the Company has no other derivative instruments used for any purpose, no additional financial instruments with significant credit risk, and no material exposure to currency or commodity risk.

Item 8. Financial Statements and Supplementary Data.

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders of

The York Water Company

We have audited the accompanying balance sheets of The York Water Company (the "Company") as of December 31, 2016 and 2015, and the related statements of income, common stockholders' equity, and cash flows for each of the years in the three-year period ended December 31, 2016. In connection with our audits of the financial statements, we also have audited the financial statement schedule listed in the Index at Item 15(a) 2. These financial statements and financial statement schedule are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements and financial statement schedule based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the financial position of The York Water Company as of December 31, 2016 and 2015, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2016 in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, the related financial statement schedule, when considered in relation to the basic financial statements taken as a whole, presents fairly, in all material respect, the information set forth therein.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), The York Water Company's internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control—Integrated Framework (2013 framework) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), and our report dated March 7, 2017 expressed an unqualified opinion.

/s/Baker Tilly Virchow Krause, LLP

Baker Tilly Virchow Krause, LLP

York, Pennsylvania

March 7, 2017

Page 31

THE YORK WATER COMPANY

Balance Sheets

(In thousands of dollars, except per share amounts)

	Dec. 31, 2016			Dec. 31, 2015
ASSETS
UTILITY PLANT, at original cost	$	343,412		$	329,415
Plant acquisition adjustments		(3,667	)		(3,724	)
Accumulated depreciation		(68,838	)		(64,271	)
Net utility plant		270,907			261,420
OTHER PHYSICAL PROPERTY,
net of accumulated depreciation of $353 in 2016 and $329 in 2015		745			769
CURRENT ASSETS:
Cash and cash equivalents		4,209			2,879
Accounts receivable, net of reserves of $305 in 2016 and $315 in 2015		4,296			3,535
Unbilled revenues		2,429			2,614
Recoverable income taxes		282			1,049
Materials and supplies inventories, at cost		746			771
Prepaid expenses		658			729
Total current assets		12,620			11,577
OTHER LONG-TERM ASSETS:
Notes receivable		255			255
Deferred regulatory assets		33,027			32,996
Other assets		2,940			3,516
Total other long-term assets		36,222			36,767
Total Assets	$	320,494		$	310,533

The accompanying notes are an integral part of these statements.

Page 32

THE YORK WATER COMPANY

Balance Sheets

(In thousands of dollars, except per share amounts)

	Dec. 31, 2016		Dec. 31, 2015
STOCKHOLDERS' EQUITY AND LIABILITIES
COMMON STOCKHOLDERS' EQUITY:
Common stock, no par value, authorized 46,500,000 shares, issued and outstanding 12,852,295 shares in 2016 and 12,812,377 shares in 2015	$	78,513	$	77,317
Retained earnings		35,548		31,753
Total common stockholders' equity		114,061		109,070
PREFERRED STOCK, authorized 500,000 shares, no shares issued		-		-
LONG-TERM DEBT, excluding current portion		84,609		84,518
COMMITMENTS		-		-
CURRENT LIABILITIES:
Current portion of long-term debt		44		44
Accounts payable		3,669		1,772
Dividends payable		1,803		1,708
Accrued compensation and benefits		1,233		1,174
Accrued interest		921		976
Other accrued expenses		514		523
Total current liabilities		8,184		6,197
DEFERRED CREDITS:
Customers' advances for construction		7,102		7,500
Deferred income taxes		54,169		50,280
Deferred employee benefits		8,990		11,079
Other deferred credits		6,725		6,959
Total deferred credits		76,986		75,818
Contributions in aid of construction		36,654		34,930
Total Stockholders' Equity and Liabilities	$	320,494	$	310,533

The accompanying notes are an integral part of these statements.

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THE YORK WATER COMPANY

Statements of Income

(In thousands of dollars, except per share amounts)

	Year Ended December 31,
	2016			2015			2014
OPERATING REVENUES:
Residential	$	30,142		$	29,682		$	29,079
Commercial and industrial		13,760			13,822			13,267
Other		3,682			3,585			3,554
		47,584			47,089			45,900
OPERATING EXPENSES:
Operation and maintenance		8,031			8,066			7,968
Administrative and general		9,129			9,082			8,812
Depreciation and amortization		6,422			6,151			5,932
Taxes other than income taxes		1,114			1,129			1,111
		24,696			24,428			23,823
Operating income		22,888			22,661			22,077
OTHER INCOME (EXPENSES):
Interest on debt		(5,265	)		(5,182	)		(5,206	)
Allowance for funds used during construction		228			206			210
Gain on sale of land		36			-			316
Other income (expenses), net		(632	)		(456	)		(1,036	)
		(5,633	)		(5,432	)		(5,716	)
Income before income taxes		17,255			17,229			16,361
Income taxes		5,409			4,740			4,877
Net Income	$	11,846		$	12,489		$	11,484
Basic Earnings Per Share	$	0.92		$	0.97		$	0.89
Diluted Earnings Per Share	$	0.92		$	0.97		$	0.89
Cash Dividends Declared Per Share	$	0.6267		$	0.6040		$	0.5788

The accompanying notes are an integral part of these statements.

Page 34

THE YORK WATER COMPANY

Statements of Common Stockholders' Equity

(In thousands of dollars, except per share amounts)

For the Years Ended December 31, 2016, 2015 and 2014

	Common Stock Shares			Common Stock Amount			Retained Earnings			Total
Balance, December 31, 2013		12,979,281		$	80,545		$	22,966		$	103,511
Net income		-			-			11,484			11,484
Dividends		-			-			(7,443	)		(7,443	)
Retirement of common stock		(282,570	)		(5,692	)		-			(5,692	)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans		133,810			2,703			-			2,703
Balance, December 31, 2014		12,830,521			77,556			27,007			104,563
Net income		-			-			12,489			12,489
Dividends		-			-			(7,743	)		(7,743	)
Retirement of common stock		(121,012	)		(2,546	)		-			(2,546	)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans		102,868			2,307			-			2,307
Balance, December 31, 2015		12,812,377			77,317			31,753			109,070
Net income		-			-			11,846			11,846
Dividends		-			-			(8,051	)		(8,051	)
Retirement of common stock		(46,771	)		(1,339	)		-			(1,339	)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans		85,458			2,513			-			2,513
Stock-based compensation		1,231			22			-			22
Balance, December 31, 2016		12,852,295		$	78,513		$	35,548		$	114,061

The accompanying notes are an integral part of these statements.

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THE YORK WATER COMPANY

Statements of Cash Flows

(In thousands of dollars, except per share amounts)

	Year Ended December 31,
	2016			2015			2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$	11,846		$	12,489		$	11,484
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of land		(36	)		-			(316	)
Depreciation and amortization		6,422			6,151			5,932
Stock-based compensation		22			-			-
Increase in deferred income taxes		1,646			2,270			4,753
Other		331			317			319
Changes in assets and liabilities:
Increase in accounts receivable and unbilled revenues		(867	)		(73	)		(632	)
(Increase) decrease in recoverable income taxes		767			(92	)		(957	)
Increase in materials and supplies, prepaid expenses, regulatory and other assets		(3,098	)		(3,310	)		(10,719	)
Increase in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, and other deferred credits		2,387			3,009			10,663
Decrease in accrued interest and taxes		(55	)		(51	)		(1,761	)
Net cash provided by operating activities		19,365			20,710			18,766
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $127 in 2016, $115 in 2015 and $117 in 2014		(13,158	)		(13,844	)		(14,139	)
Acquisitions of water and wastewater systems		(50	)		(352	)		(369	)
Proceeds from sale of land		40			-			346
Decrease in notes receivable		-			11			40
Cash received from surrender of life insurance policies		642			-			-
Net cash used in investing activities		(12,526	)		(14,185	)		(14,122	)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction		1,769			1,117			638
Repayments of customer advances		(443	)		(447	)		(419	)
Proceeds of long-term debt issues		-			14,301			14,880
Debt issuance costs		-			(298	)		(506	)
Repayments of long-term debt		(53	)		(11,886	)		(14,923	)
Repurchase of common stock		(1,339	)		(2,546	)		(5,692	)
Issuance of common stock		2,513			2,307			2,703
Dividends paid		(7,956	)		(7,682	)		(7,402	)
Net cash used in financing activities		(5,509	)		(5,134	)		(10,721	)
Net change in cash and cash equivalents		1,330			1,391			(6,077	)
Cash and cash equivalents at beginning of period		2,879			1,488			7,565
Cash and cash equivalents at end of period	$	4,209		$	2,879		$	1,488
Supplemental disclosures of cash flow information:
Cash paid during the period for:
Interest, net of amounts capitalized	$	5,051		$	4,985		$	5,007
Income taxes		2,509			2,155			2,808
Supplemental schedule of non-cash investing and financing activities:
Accounts payable includes $2,766 in 2016, $720 in 2015 and $833 in 2014 for the construction of utility plant.

The accompanying notes are an integral part of these statements.

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Notes to Financial Statements

(In thousands of dollars, except per share amounts)

1. Significant Accounting Policies

The primary business of The York Water Company, or Company, is to impound, purify and distribute water.  The Company also operates two wastewater collection and treatment systems.  The Company operates within its franchised territory located in York and Adams Counties, Pennsylvania, and is subject to regulation by the Pennsylvania Public Utility Commission, or PPUC.

The following summarizes the significant accounting policies employed by The York Water Company.

Utility Plant and Depreciation

The cost of additions includes contracted cost, direct labor and fringe benefits, materials, overhead and, for certain utility plant, allowance for funds used during construction.  In accordance with regulatory accounting requirements, water and wastewater systems acquired are recorded at estimated original cost of utility plant when first devoted to utility service and the applicable depreciation is recorded to accumulated depreciation.  The difference between the estimated original cost less applicable accumulated depreciation, and the purchase price and acquisition costs is recorded as an acquisition adjustment within utility plant as permitted by the PPUC.  At December 31, 2016 and 2015, utility plant includes a net credit acquisition adjustment of $3,667 and $3,724, respectively.  For those amounts approved by the PPUC, the net acquisition adjustment is being amortized over the remaining life of the respective assets. Certain amounts are still awaiting approval from the PPUC before amortization will commence.  Amortization amounted to $58 in 2016, $58 in 2015, and $54 in 2014.

Upon normal retirement of depreciable property, the estimated or actual cost of the asset is credited to the utility plant account, and such amounts, together with the cost of removal less salvage value, are charged to the reserve for depreciation.  To the extent the Company recovers cost of removal or other retirement costs through rates after the retirement costs are incurred, a regulatory asset is reported.  Gains or losses from abnormal retirements are reflected in income currently.

The straight-line remaining life method is used to compute depreciation on utility plant cost, exclusive of land and land rights.  Annual provisions for depreciation of transportation and mechanical equipment included in utility plant are computed on a straight-line basis over the estimated service lives.  Such provisions are charged to clearing accounts and apportioned therefrom to operating expenses and other accounts in accordance with the Uniform System of Accounts as prescribed by the PPUC.

The Company charges to maintenance expense the cost of repairs and replacements and renewals of minor items of property.  Maintenance of transportation equipment is charged to clearing accounts and apportioned therefrom in a manner similar to depreciation.  The cost of replacements, renewals and betterments of units of property is capitalized to the utility plant accounts.

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The following remaining lives are used for financial reporting purposes:

	December 31,				Approximate range
Utility Plant Asset Category	2016		2015		of remaining lives
Mains and accessories	$	176,068	$	170,991	10 – 83 years
Services, meters and hydrants		68,510		66,267	19 – 54 years
Operations structures, reservoirs and water tanks		46,494		44,739	11 – 37 years
Pumping and treatment equipment		29,459		27,664	2 – 33 years
Office, transportation and operating equipment		12,360		11,725	3 – 20 years
Land and other non-depreciable assets		3,172		3,172		-
Utility plant in service		336,063		324,558
Construction work in progress		7,349		4,857		-
Total Utility Plant	$	343,412	$	329,415

The effective rate of depreciation was 2.25% in 2016, 2.24% in 2015, and 2.26% in 2014 on average utility plant, net of customers' advances and contributions. Larger depreciation provisions resulting from allowable accelerated methods are deducted for tax purposes.

Cash and Cash Equivalents

For the purposes of the statements of cash flows, the Company considers all highly liquid debt instruments purchased with an original  maturity of three months or less to be cash equivalents except for those instruments earmarked to fund construction expenditures or repay long-term debt.

The Company periodically maintains cash balances in major financial institutions in excess of the federally insured limit by the Federal Deposit Insurance Corporation (FDIC).  The Company has not experienced any losses and believes it is not exposed to any significant credit risk on cash and cash equivalents.

Accounts Receivable

Accounts receivable are stated at outstanding balances, less a reserve for doubtful accounts.  The reserve for doubtful accounts is established through provisions charged against income.  Accounts deemed to be uncollectible are charged against the reserve and subsequent recoveries, if any, are credited to the reserve.  The reserve for doubtful accounts is maintained at a level considered adequate to provide for losses that can be reasonably anticipated.  Management's periodic evaluation of the adequacy of the reserve is based on past experience, agings of the receivables, adverse situations that may affect a customer's ability to pay, current economic conditions, and other relevant factors.  This evaluation is inherently subjective.  Unpaid balances remaining after the stated payment terms are considered past due.

Revenue Recognition

Operating revenues include amounts billed to water customers on a cycle basis and unbilled amounts based on actual and estimated usage from the latest meter reading to the end of the accounting period.  Operating revenues also include amounts billed to wastewater customers as either a flat monthly fee or a metered rate based on water consumption.  The metered wastewater revenue includes actual and estimated usage from the latest meter reading to the end of the accounting period.

Materials and Supplies Inventories

Materials and supplies inventories are stated at cost.  Costs are determined using the average cost method.

Notes Receivable

Notes receivable are recorded at cost and represent amounts due from various municipalities for construction of water mains in their particular municipality.  Management, considering current information and events regarding the borrowers' ability to repay their obligations, considers a note to be impaired when it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the note agreement.  When a note is considered to be impaired, the carrying value of the note is written down.  The amount of the impairment is measured based on the present value of expected future cash flows discounted at the note's effective interest rate.

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Regulatory Assets and Liabilities

The Company is subject to the provisions of generally accepted accounting principles regarding rate-regulated entities.  The accounting standards provide for the recognition of regulatory assets and liabilities as allowed by regulators for costs or credits that are reflected in current customer rates or are considered probable of being included in future rates.  The regulatory assets or liabilities are then relieved as the cost or credit is reflected in rates.  Regulatory assets represent costs that are expected to be fully recovered from customers in future rates while regulatory liabilities represent amounts that are expected to be refunded to customers in future rates.  These deferred costs have been excluded from the Company’s rate base and, therefore, no return is being earned on the unamortized balances.

Regulatory assets and liabilities are comprised of the following:

	December 31,				Remaining
	2016		2015		Recovery Periods
Assets
Income taxes	$	20,609	$	18,389	Various
Postretirement benefits		7,471		9,819	5 – 10 years
Unrealized swap losses		2,264		2,481	1 – 13 years
Utility plant retirement costs		2,679		2,247	5 years
Service life study expenses		4		3	1 years
Rate case filing expenses		-		57
		33,027		32,996
Liabilities
IRS TPR catch-up deduction		3,887		3,887	Not yet known
Income taxes		753		776	1 – 50 years
	$	4,640	$	4,663

The regulatory asset for income taxes includes (a) deferred state income taxes related primarily to differences between book and tax depreciation expense, (b) deferred income taxes related to the differences that arise between specific asset improvement costs capitalized for book purposes and deducted as a repair expense for tax purposes, and (c) deferred income taxes associated with the gross-up of revenues related to the differences.  These assets are recognized for ratemaking purposes on a cash or flow-through basis and will be recovered in rates as they reverse.

Postretirement benefits include the difference between contributions and deferred pension expense and the underfunded status of the pension plans.  The underfunded status represents the difference between the projected benefit obligation and the fair market value of the assets.  This asset is expected to be recovered in future years as additional contributions are made or market conditions accelerate.  The recovery period is dependent on contributions made to the plans, plan asset performance and the discount rate used to value the obligations.  The period is estimated at between 5 and 10 years.

The Company uses regulatory accounting treatment to defer the mark-to-market unrealized gains and losses on its interest rate swap to reflect that the gain or loss is included in the ratemaking formula when the transaction actually settles.  The value of the swap as of the balance sheet date is recorded as part of other deferred credits.  Realized gains or losses on the swap will be recorded as interest expense in the statement of income over its remaining life of 13 years.

Utility plant retirement costs represents costs already incurred for the removal of assets, which are expected to be recovered over a five-year period in rates, through depreciation expense.  Service life study expenses are deferred and amortized over their remaining life of one year.  Rate case filing expenses were fully amortized in 2016.

The regulatory liability for the Internal Revenue Service, or IRS, tangible property regulations, or TPR, catch-up deduction represents the tax benefits realized on the Company’s 2014 income tax return for qualifying capital expenditures made prior to 2014.  The Company will seek approval from the PPUC in its next rate filing to amortize the catch-up deduction.

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The regulatory liability for income taxes relates mainly to deferred investment tax credits, and additionally to deferred taxes related to postretirement death benefits and bad debts.  These liabilities will be given back to customers in rates as tax deductions occur over the next 1 to 50 years.

Regulatory liabilities are part of other accrued expenses and other deferred credits on the balance sheets.

Other Assets

Other assets consist mainly of the cash value of life insurance policies held as an investment by the Company for reimbursement of costs and benefits associated with its supplemental retirement and deferred compensation programs.

Deferred Debt Expense

Deferred debt expense is amortized on a straight-line basis over the term of the related debt and is presented on the balance sheet as a direct reduction from long-term debt.

Customers' Advances for Construction

Customer advances are cash payments from developers, municipalities, customers or builders for construction of utility plant, and are refundable upon completion of construction, as operating revenues are earned.  If the Company loans funds for construction to the customer, the refund amount is credited to the note receivable rather than paid out in cash.  After all refunds to which the customer is entitled are made, any remaining balance is transferred to contributions in aid of construction.  From 1986 to 1996 when customer advances were taxable income to the Company, additional funds were collected from customers to cover the taxes.  Those funds were recorded as a liability within Customer Advances for Construction and were amortized as deferred income over the tax life of the underlying assets.  These amounts were fully amortized in 2016.

Contributions in Aid of Construction

Contributions in Aid of Construction is composed of (i) direct, non-refundable contributions from developers, customers or builders for construction of water infrastructure and (ii) customer advances that have become non-refundable.  Contributions in aid of construction are deducted from the Company’s rate base, and therefore, no return is earned on property financed with contributions.  The PPUC requires that contributions received remain on the Company’s balance sheets indefinitely as a long-term liability.

Interest Rate Swap Agreement

The Company is exposed to certain risks relating to its ongoing business operations.  The primary risk managed by using derivative instruments is interest rate risk.  The Company utilizes an interest rate swap agreement to convert its variable-rate debt to a fixed rate.  Interest rate swaps are contracts in which a series of interest rate cash flows are exchanged over a prescribed period.  The notional amount on which the interest payments are based is not exchanged.  The Company has designated the interest rate swap agreement as a cash flow hedge, classified as a financial derivative used for non-trading activities.

The accounting standards regarding accounting for derivatives and hedging activities require companies to recognize all derivative instruments as either assets or liabilities at fair value on the balance sheets.  In accordance with the standards, the interest rate swap is recorded on the balance sheets in other deferred credits at fair value.

The Company uses regulatory accounting treatment rather than hedge accounting to defer the unrealized gains and losses on its interest rate swap.  Instead of the effective portion being recorded as other comprehensive income and the ineffective portion being recognized in earnings, the entire unrealized swap value is recorded as a regulatory asset.  Based on current ratemaking treatment, the Company expects the gains and losses to be recognized in rates and in interest expense as the swap settlements occur.  Swap settlements are recorded in the income statement with the hedged item as interest expense.  Swap settlements resulted in the reclassification from regulatory assets to interest expense of $345 in 2016, $366 in 2015, and $368 in 2014.  The overall swap result was a loss of $128 in 2016, $285 in 2015, and $1,318 in 2014.  During the twelve months ending December 31, 2017, the Company expects to reclassify $310 (before tax) from regulatory assets to interest expense.

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The interest rate swap will expire on October 1, 2029.

Stock-Based Compensation

The Company records compensation expense in the financial statements for stock-based awards based on the grant date fair value of those awards.  Stock-based compensation expense is recognized over the requisite service periods of the awards on a straight-line basis, which is generally commensurate with the vesting term.  Forfeitures are recognized as they occur.

Income Taxes

Certain income and expense items are accounted for in different time periods for financial reporting than for income tax reporting purposes.

Deferred income taxes are accounted for under the asset and liability method.  Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and tax credit carryforwards.  Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled.  The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.  To the extent such income taxes increase or decrease future rates, an offsetting regulatory asset or liability has been recorded.

Investment tax credits have been deferred and are being amortized to income over the average estimated service lives of the related assets.  As of December 31, 2016 and 2015, deferred investment tax credits amounted to $657 and $696, respectively.

The Company filed for a change in accounting method under the IRS TPR effective in 2014.  Under the change in accounting method, the Company is permitted to deduct the costs of certain asset improvements that were previously being capitalized and depreciated for tax purposes as an expense on its income tax return.  The Company is permitted to make this deduction for prior years (the “catch-up deduction”) and each year going forward, beginning with 2014 (the “ongoing deduction”).  The ongoing deduction results in a reduction in the effective income tax rate, a net reduction in income tax expense, and a reduction in the amount of income taxes currently payable.  The catch-up deduction resulted in a decrease in current income taxes payable and an increase to regulatory liabilities.  The Company will seek approval from the PPUC in its next rate filing to amortize the remaining catch-up deduction recorded as a regulatory liability.  Both the ongoing and catch-up deductions resulted in increases to deferred tax liabilities and regulatory assets representing the appropriate book and tax basis difference on capital additions.

Allowance for Funds Used During Construction

Allowance for funds used during construction (AFUDC) represents the estimated cost of funds used for construction purposes during the period of construction.  These costs are reflected as non-cash income during the construction period and as an addition to the cost of plant constructed.  AFUDC includes the net cost of borrowed funds and a rate of return on other funds.  The PPUC approved rate of 10.04% was applied for 2016 and 2014.  The Company applied a blended rate in 2015 due to its partial use of tax-exempt financing for 2015 construction projects.  The tax-exempt borrowing rates of 4.00% - 4.50% were applied to those expenditures so financed, whereas the approved 10.04% rate was applied to the remainder of 2015 expenditures.  AFUDC is recovered through water and wastewater rates as utility plant is depreciated.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Actual results could differ from those estimates.

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Reclassifications

Certain 2015 and 2014 amounts have been reclassified to conform to the 2016 presentation.  Such reclassifications had no effect on net income, the statement of common stockholders’ equity, or the statement of cash flow category reporting.

Impact of Recent Accounting Pronouncements

In August 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-15, Statement of Cash Flows (Topic 320): Classification of Certain Cash Receipts and Cash Payments.  This ASU clarifies how certain cash receipts and payments should be presented in the statement of cash flows.  The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption available.  The Company does not expect the adoption of this standard to have a material impact on its financial position, results of operations and cash flows.

In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.  This ASU involves multiple aspects of the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows.  The ASU is effective for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years, with early adoption available.  The Company adopted this ASU in 2016 upon its first issuance of share-based payments.  The adoption of this ASU did not have any impact on its prior financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which replaces the existing guidance in Accounting Standard Codification 840 – Leases.  This ASU requires a dual approach for lessee accounting under which a lessee would account for leases as finance leases or operating leases.  Both finance leases and operating leases will result in the lessee recognizing a right-of-use asset and a corresponding lease liability.  For finance leases, the lessee would recognize interest expense and amortization of the right-of-use asset, and for operating leases, the lessee would recognize a straight-line total lease expense.  This ASU is effective for fiscal years beginning after December 15, 2018, and for interim periods within those fiscal years.  The Company is currently assessing the impact of the adoption of the standard, but it expects the adoption to have little or no effect on its financial position, results of operations and cash flows.

In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes.  This ASU requires that deferred tax liabilities and assets be classified as noncurrent in a classified statement of financial position.  The current requirement that deferred tax liabilities and assets of a tax-paying component of an entity be offset and presented as a single amount is not affected by the amendments in this update.  This ASU is effective for fiscal years beginning after December 15, 2016, and for interim periods within those fiscal years.  Early adoption is permitted, and the Company adopted this ASU in the first quarter of 2016.  The Company applied the ASU retrospectively and reclassified the current deferred income tax asset of $215 to offset the noncurrent deferred income tax liability on the December 31, 2015 balance sheet.  The adoption did not have a material impact on the results of operations or cash flows of the Company.

In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs.  This ASU clarifies the required presentation of debt issuance costs.  The standard requires that debt issuance costs be presented on the balance sheet as a direct reduction from the carrying amount of the recognized debt liability, consistent with the treatment of debt discounts.  Amortization of debt issuance costs is to be reported as interest expense.  The recognition and measurement guidance for debt issuance costs are not affected by the standard.  This ASU is effective for fiscal years beginning after December 15, 2015, and the Company adopted this ASU in the first quarter of 2016.  The Company applied the ASU retrospectively and reclassified the deferred debt expense asset of $2,743 to offset long-term debt on the December 31, 2015 balance sheet.  The adoption did not have a material impact on the results of operations or cash flows of the Company.

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In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties About an Entity’s Ability to Continue as a Going Concern, which provides guidance on determining when and how reporting entities must disclose going-concern uncertainties in their financial statements.  The new standard requires management to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date of issuance of the entity’s financial statements.  Further, an entity must provide certain disclosures if there is substantial doubt about the entity’s ability to continue as a going concern.  The ASU is effective for fiscal years ending on or after December 15, 2016 and interim periods thereafter.  The Company adopted this ASU in 2016.  The Company is complying with these assessments, but the adoption of this ASU did not have any impact on its financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers.  This ASU supersedes the revenue recognition requirements in Accounting Standards Codification 605—Revenue Recognition and most industry-specific guidance throughout the Codification.  The standard requires that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services.  In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, deferring the effective date of this amendment for public companies by one year to fiscal years beginning after December 15, 2017.  Early adoption is permitted for fiscal years beginning after December 15, 2016, the original effective date.  The standard permits the use of either a retrospective or cumulative effect transition method.  The Company has not yet selected a transition method and is in the process of assessing the impact of the adoption of the standard on its financial position, results of operations and cash flows.  Based on its evaluation of ASU 2014-09, the Company currently does not expect it to have a material impact on its results of operations or cash flows in the periods after adoption.  Under ASU 2014-09, revenue is recognized as control transfers to the customer.  As such, revenue for the Company’s contracts is generally from a single performance obligation that will be recognized at a point in time.  This is consistent with the revenue recognition model it currently uses for its contracts.  The Company will complete its assessment of the expected impact of adoption, including selecting a transition method for adoption, in 2017, and continue to evaluate ASU 2014-09 through the date of adoption.

2. Acquisitions

On February 7, 2014, the Company completed the acquisition of the wastewater facilities of East Prospect Borough Authority in York County, Pennsylvania. The Company began operating the existing collection and treatment facilities on February 8, 2014. The acquisition resulted in the addition of approximately 400 wastewater customers with purchase price and acquisition costs of approximately $281, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $667 as of December 31, 2014. In 2015, the Company paid additional acquisition costs of approximately $2 resulting in a decrease of the negative acquisition adjustment to $665. The Company will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On May 30, 2014, the Company completed the acquisition of the water assets of Forest Lakes Water Association in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on June 2, 2014. The acquisition resulted in the addition of approximately 70 new water customers with purchase price and acquisition costs of approximately $18, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $9 as of December 31, 2014. In 2015, the Company paid additional acquisition costs of approximately $2 resulting in a decrease of the negative acquisition adjustment to $7. The Company will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On November 20, 2014, the Company completed the acquisition of the water assets of Lincoln Estates Mobile Home Park in Adams County, Pennsylvania. The Company began operating the existing system as a satellite location on November 24, 2014. The acquisition resulted in the addition of approximately 200 new water customers with purchase price and acquisition costs of approximately $70, which is less than the depreciated original cost of the assets. In 2015, the Company recorded a negative acquisition adjustment of approximately $77 and will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

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On April 9, 2015, the Company completed the acquisition of the water assets of The Meadows community in Adams County, Pennsylvania. The Company began operating the existing system as a satellite location on April 13, 2015. The acquisition resulted in the addition of approximately 90 new water customers with purchase price and acquisition costs of approximately $63, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $159 and will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On April 22, 2015, the Company completed the acquisition of the water assets of the Paradise Homes Community in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on April 27, 2015. The acquisition resulted in the addition of approximately 90 new water customers with purchase price and acquisition costs of approximately $36, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $28 and will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On October 19, 2015, the Company completed the acquisition of the water assets of the Newberry Farms Mobile Home Park in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on October 22, 2015. The acquisition resulted in the addition of approximately 160 new water customers with purchase price and acquisition costs of approximately $129, of which $13 was paid in 2016, which approximated the depreciated original cost of the assets.  In 2016, the Company recorded an immaterial negative acquisition adjustment and will seek approval from the PPUC to expense the negative acquisition adjustment.

On November 2, 2015, the Company completed the acquisition of the water assets of the Margaretta Mobile Home Park in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on November 3, 2015. The acquisition resulted in the addition of approximately 65 new water customers with purchase price and acquisition costs of approximately $102 after a net transfer of $31 to related construction projects in 2016, which is more than the depreciated original cost of the assets.  In 2016, the Company recorded an acquisition adjustment of approximately $56 and will seek approval from the PPUC to amortize the acquisition adjustment over the remaining life of the acquired assets.

On March 10, 2016, the Company completed the acquisition of the water assets of Crestview Mobile Home Park in York County, Pennsylvania.  The Company began operating the existing system through an interconnection with its current distribution system on March 15, 2016.  The acquisition resulted in the addition of approximately 120 new water customers with purchase price and acquisition costs of approximately $47.  The purchase price and acquisition costs were more than the depreciated original cost of the assets.  The Company recorded an acquisition adjustment of approximately $19 and will seek approval from the PPUC to amortize the acquisition adjustment over the remaining life of the acquired assets.  These customers were previously served by the Company through a single customer connection to the park.

On October 13, 2016, the Company completed the acquisition of the water assets of the Westwood Mobile Home Park in York County, Pennsylvania.  The Company began operating the existing system through an interconnection with its current distribution system on October 17, 2016.  The acquisition resulted in the addition of approximately 200 new water customers with purchase price and acquisition cost of approximately $21, which is less than the depreciated original cost of the assets.  The Company recorded a negative acquisition adjustment of approximately $76 and will seek approval from the PPUC to amortize the acquisition adjustment over the remaining life of the acquired assets.  These customers were previously served by the Company through a single customer connection to the park.

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3. Income Taxes

The provisions for income taxes consist of:

	2016			2015			2014
Federal current	$	2,681		$	1,873		$	96
State current		1,082			597			28
Federal deferred		1,683			2,131			3,757
State deferred		2			177			1,035
Federal investment tax credit, net of current utilization		(39	)		(38	)		(39	)
Total income taxes	$	5,409		$	4,740		$	4,877

A reconciliation of the statutory Federal tax provision (34%) to the total provision follows:

	2016			2015			2014
Statutory Federal tax provision	$	5,867		$	5,858		$	5,563
State income taxes, net of Federal benefit		715			511			702
IRS TPR ongoing deduction		(962	)		(1,438	)		(1,342	)
Tax-exempt interest		(34	)		(37	)		(37	)
Amortization of investment tax credit		(39	)		(38	)		(39	)
Cash value of life insurance		44			71			15
Domestic production deduction		(194	)		(190	)		-
Other, net		12			3			15
Total income taxes	$	5,409		$	4,740		$	4,877

The Company filed for a change in accounting method under the IRS TPR effective in 2014.  Under the change in accounting method, the Company is permitted to deduct the costs of certain asset improvements that were previously being capitalized and depreciated for tax purposes as an expense on its income tax return.  The Company was permitted to make this deduction for prior years (the “catch-up deduction”) and each year going forward, beginning with 2014 (the “ongoing deduction”).  As a result of the catch-up deduction, income tax benefits of $4,314 were deferred as a regulatory liability as of December 31, 2014.  The catch-up deduction resulted in a decrease in current income taxes payable and an increase to regulatory liabilities during 2014.  In 2015, upon final determination of the TPR amounts for its income tax return, the Company reclassified the portion of TPR related to dispositions to deferred taxes and deferred tax liabilities in compliance with the IRS regulations.  The Company will seek approval from the PPUC in its next rate filing to amortize the remaining catch-up deduction of $3,887 recorded as a regulatory liability.  As a result of the ongoing deduction, the net income tax benefits of $962, $1,438 and $1,342 for the years ended December 31, 2016, 2015 and  2014, respectively, reduced income tax expense and flowed-through to net income.  The ongoing deduction results in a reduction in the effective income tax rate, a net reduction in income tax expense, and a reduction in the amount of income taxes currently payable.  Both the ongoing and catch-up deductions result in increases to deferred tax liabilities and regulatory assets representing the appropriate book and tax basis difference on capital additions.

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The tax effects of temporary differences between book and tax balances that give rise to significant portions of the deferred tax assets and deferred tax liabilities as of December 31, 2016 and 2015 are summarized in the following table:

	2016		2015
Deferred tax assets:
Reserve for doubtful accounts	$	124	$	128
Compensated absences		212		221
Deferred compensation		1,581		1,465
Customers' advances and contributions		-		1
Deferred taxes associated with the gross-up of revenues necessary to return, in rates, the effect of temporary differences		124		122
Pensions		2,146		3,099
Contribution carryover		-		147
Other costs deducted for book, not for tax		57		51
Total deferred tax assets		4,244		5,234
Deferred tax liabilities:
Accelerated depreciation		38,063		36,210
Basis differences from IRS TPR		8,339		7,196
Investment tax credit		390		413
Deferred taxes associated with the gross-up of revenues necessary to recover, in rates, the effect of temporary differences		8,183		7,271
Tax effect of pension regulatory asset		3,033		3,986
Other costs deducted for tax, not for book		405		438
Total deferred tax liabilities		58,413		55,514
Net deferred tax liability	$	54,169	$	50,280
In accordance with accounting standards, the net deferred tax liability is classified as a noncurrent deferred income tax liability on the balance sheets.

No valuation allowance was required for deferred tax assets as of December 31, 2016 and 2015.  In assessing the soundness of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized.  The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible.  Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies in making this assessment.  Based upon expected future taxable income and the current regulatory environment, management believes it is more likely than not that the Company will realize the benefits of these deductible differences.

The Company determined that there were no uncertain tax positions meeting the recognition and measurement test of the accounting standards recorded in the years that remain open for review by taxing authorities, which are 2013 through 2015 for both federal and state income tax returns.  The Company has not yet filed tax returns for 2016, but has not taken any new position in its 2016 income tax provision.

The Company's policy is to recognize interest and penalties related to income tax matters in other expenses.  There were no interest or penalties for the years ended December 31, 2016, 2015, and 2014.

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4. Long-Term Debt and Short-Term Borrowings

Long-term debt as of December 31, 2016 and 2015 is summarized in the following table:

	2016			2015
10.17% Senior Notes, Series A, due 2019	$	6,000		$	6,000
9.60% Senior Notes, Series B, due 2019		5,000			5,000
1.00% Pennvest Note, due 2019		118			162
10.05% Senior Notes, Series C, due 2020		6,500			6,500
8.43% Senior Notes, Series D, due 2022		7,500			7,500
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds, Series 2008A, due 2029		12,000			12,000
4.75% York County Industrial Development Authority Revenue Bonds, Series 2006, due 2036		10,500			10,500
4.50% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2014, due 2038		14,870			14,880
5.00% Monthly Senior Notes, Series 2010A, due 2040		15,000			15,000
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045		10,000			10,000
Total long-term debt		87,488			87,542
Less discount on issuance of long-term debt		(226	)		(237	)
Less unamortized debt issuance costs		(2,609	)		(2,743	)
Less current maturities		(44	)		(44	)
Long-term portion	$	84,609		$	84,518

Payments due by year as of December 31, 2016:

2017		2018		2019		2020		2021
$	44	$	12,044	$	11,030	$	6,500	$	-

Payments due in 2018 include potential payments of $12,000 on the variable rate bonds (due 2029) which would only be payable if all of the bonds were tendered and could not be remarketed.  There is currently no such indication of this happening.

Fixed Rate Long-Term Debt

On July 23, 2015, the York County Industrial Development Authority (the "YCIDA") issued and sold $10,000 aggregate principal amount of YCIDA Exempt Facilities Revenue Bonds, Series 2015 (the "Series 2015 Bonds") for the Company's benefit pursuant to the terms of a trust indenture, dated as of July 1, 2015, between the YCIDA and Manufacturers and Traders Trust Company, as trustee.  The YCIDA then loaned the proceeds of the sale of the Series 2015 Bonds to the Company pursuant to a loan agreement dated as of July 1, 2015, between the Company and the YCIDA, which matches the debt service requirements on the Bonds.  The Bonds, and therefore the loan, bear interest at rates ranging from 4.00% to 4.50% per annum payable semiannually.  The Bonds have stated maturity dates of June 1 of the years 2029, 2032, 2035, 2038, 2042 and 2045 and are subject to optional and mandatory redemption provisions.  One such provision allows the Company to redeem all or a portion of the bonds on or after June 1, 2025.  Amounts outstanding under the loan agreement are direct, unsecured and unsubordinated obligations of the Company.  The Company received net proceeds, after deducting original issue discount and issuance costs, of approximately $9,500.  The net proceeds were used to redeem the Pennsylvania Economic Development Financing Authority, or PEDFA, Series A 2004 Bonds and to fund a portion of the Company's 2015 capital expenditures.

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The PEDFA Series 2014 Bonds contain both optional and special redemption provisions. Under the optional provisions, the Company can redeem all or a portion of the bonds on or after May 1, 2019.  Under the special provisions, representatives of deceased beneficial owners of the bonds have the right to request redemption prior to the stated maturity of all or part of their interest in the bonds beginning on or after May 1, 2014. The Company is not obligated to redeem any individual interest exceeding $25, or aggregate interest exceeding $300, in any annual period.  In 2016, the Company retired $10 of the bonds under these provisions.  In 2015, no bonds were retired under these provisions.  Currently, no additional bonds that meet the special provisions have been tendered for redemption.

Variable Rate Long-Term Debt

On May 7, 2008, the PEDFA issued $12,000 aggregate principal amount of PEDFA Exempt Facilities Revenue Refunding Bonds, Series A of 2008 (the "Series A Bonds") for the Company's benefit pursuant to the terms of a trust indenture, dated as of May 1, 2008, between the PEDFA and Manufacturers and Traders Trust Company, as trustee.  The PEDFA then loaned the proceeds of the offering of the Series A Bonds to the Company pursuant to a loan agreement, dated as of May 1, 2008, between the Company and the PEDFA.  The loan agreement provides for a $12,000 loan with a maturity date of October 1, 2029.  Amounts outstanding under the loan agreement are the Company’s direct general obligations.  The proceeds of the loan were used to redeem the PEDFA Exempt Facilities Revenue Bonds, Series B of 2004 (the “2004 Series B Bonds”).  The 2004 Series B Bonds were redeemed because the bonds were tendered and could not be remarketed due to the downgrade of the bond insurer’s credit rating.

Borrowings under the loan agreement bear interest at a variable rate as determined by PNC Capital Markets, as remarketing agent, on a periodic basis elected by the Company, which has currently elected that the interest rate be determined on a weekly basis.  The remarketing agent determines the interest rate based on the current market conditions in order to determine the lowest interest rate which would cause the Series A Bonds to have a market value equal to the principal amount thereof plus accrued interest thereon.  The variable interest rate under the loan agreement averaged 0.47% in 2016 and 0.06%  in 2015.  As of December 31, 2016 and 2015, the interest rate was 0.80% and 0.02%, respectively.

The holders of the $12,000 Series A Bonds may tender their bonds at any time.  When the bonds are tendered, they are subject to an annual remarketing agreement, pursuant to which a remarketing agent attempts to remarket the tendered bonds according to the terms of the indenture.  In order to keep variable interest rates down and to enhance the marketability of the Series A Bonds, the Company entered into a Reimbursement, Credit and Security Agreement with PNC Bank, National Association (“the Bank”) dated as of May 1, 2008.  This agreement provides for a direct pay letter of credit issued by the Bank to the trustee for the Series A Bonds.  The Bank is responsible for providing the trustee with funds for the timely payment of the principal and interest on the Series A Bonds and for the purchase price of the Series A Bonds that have been tendered or deemed tendered for purchase and have not been remarketed.  The Company’s responsibility is to reimburse the Bank the same day as regular interest payments are made, and within fourteen months for the purchase price of tendered bonds that have not been remarketed.  The reimbursement period for the principal is immediate at maturity, upon default by the Company, or if the Bank does not renew the Letter of Credit.  The current expiration date of the Letter of Credit is June 30, 2018.  It is reviewed annually for a potential extension of the expiration date.

The Company may elect to have the Series A Bonds redeemed, in whole or in part, on any date that interest is payable for a redemption price equal to the principal amount thereof plus accrued interest to the date of redemption.  The Series A Bonds are also subject to mandatory redemption for the same redemption price in the event that the IRS determines that the interest payable on the Series A Bonds is includable in gross income of the holders of the bonds for federal tax purposes.

Interest Rate Swap Agreement

In connection with the issuance of the PEDFA 2004 Series B Bonds, the Company entered into an interest rate swap agreement with a counterparty, in the notional principal amount of $12,000.  The Company elected to retain the swap agreement for the 2008 Series A Bonds.  Interest rate swap agreements derive their value from underlying interest rates.  These transactions involve both credit and market risk.  The notional amounts are amounts on which calculations, payments, and the value of the derivative are based.  Notional amounts do not represent direct credit exposure.  Direct credit exposure is limited to the net difference between the calculated amounts to be received and paid, if any.  Such difference, which represents the fair value of the swap, is reflected on the Company’s balance sheets.  See Note 11 for additional information regarding the fair value of the swap.

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The interest rate swap will terminate on the maturity date of the 2008 Series A Bonds (which is the same date as the maturity date of the loan under the loan agreement), unless sooner terminated pursuant to its terms.  In the event the interest rate swap terminates prior to the maturity date of the 2008 Series A Bonds, either the Company or the swap counterparty may be required to make a termination payment to the other based on market conditions at such time.  The Company is exposed to credit-related losses in the event of nonperformance by the counterparty.  The Company controls the credit risk of its financial contracts through credit approvals, limits and monitoring procedures, and does not expect the counterparty to default on its obligations.  Notwithstanding the terms of the swap agreement, the Company is ultimately obligated for all amounts due and payable under the loan agreement.

The interest rate swap agreement contains provisions that require the Company to maintain a credit rating of at least BBB- with Standard & Poor’s.  On March 30, 2016, Standard & Poor’s affirmed the Company’s credit rating at A-, with a stable outlook.  If the Company’s rating were to fall below this rating, it would be in violation of these provisions, and the counterparty to the derivative could request immediate payment if the derivative was in a liability position.  The Company’s interest rate swap was in a liability position as of December 31, 2016.  If a violation was triggered on December 31, 2016, the Company would have been required to pay the counterparty approximately $2,449.

The Company's interest rate swap agreement provides that it pay the counterparty a fixed interest rate of 3.16% on the notional amount of $12,000. In exchange, the counterparty pays the Company a floating interest rate (based on 59% of the U.S. Dollar one-month LIBOR rate) on the notional amount.  The floating interest rate paid to the Company is intended, over the term of the swap, to approximate the variable interest rate on the loan agreement and the interest rate paid to bondholders, thereby managing its exposure to fluctuations in prevailing interest rates.  The Company's net payment rate on the swap averaged 2.86% in 2016 and 3.06% in 2015.

As of December 31, 2016, there was a spread of 39 basis points between the variable rate paid to bondholders and the variable rate received from the swap counterparty, which equated to an overall effective rate of 3.55% (including variable interest and swap payments).  As of December 31, 2015, there was a negative spread of 18 basis points which equated to an overall effective rate of 2.98% (including variable interest and swap payments).

Short-Term Borrowings

As of December 31, 2016, the Company maintained unsecured lines of credit aggregating $41,500 with four banks.  The first line of credit, in the amount of $13,000, is a committed line of credit with a revolving 2-year maturity (currently May 2018), and carries an interest rate of LIBOR plus 1.20%.  The second line of credit, in the amount of $11,000, is a committed line of credit, which matures in May 2018 and carries an interest rate of LIBOR plus 1.25%.  The third line of credit, in the amount of $7,500, is a committed line of credit, which matures in June 2017 and carries an interest rate of LIBOR plus 1.25%.  The fourth line of credit, in the amount of $10,000, is a committed line of credit, which matures in September 2017 and carries an interest rate of LIBOR plus 1.20%.  The Company had no outstanding borrowings under any of its lines of credit as of December 31, 2016 and 2015.

Debt Covenants and Restrictions

The terms of the debt agreements carry certain covenants and limit in some cases the Company's ability to borrow additional funds, to prepay its borrowings and include certain restrictions with respect to declaration and payment of cash dividends and the Company's acquisition of its stock.  Under the terms of the most restrictive agreements, the Company cannot borrow in excess of 60% of its utility plant, and cumulative payments for dividends and acquisition of stock since December 31, 1982 may not exceed $1,500 plus net income since that date.  As of December 31, 2016, none of the earnings retained in the business are restricted under these provisions.  The Company's Pennvest Loan is secured by $800 of receivables.  Other than this loan, the Company's debt is unsecured.

The Company's lines of credit require it to maintain a minimum equity to total capitalization ratio (defined as the sum of equity plus funded debt) and a minimum interest coverage ratio (defined as net income plus interest expense plus income tax expense divided by interest expense).  As of December 31, 2016, the Company was in compliance with these covenants.

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5. Common Stock and Earnings Per Share

Net income of $11,846 is used to calculate both basic and diluted earnings per share.  Basic net income per share is based on the weighted average number of common shares outstanding.  Diluted net income per share is based on the weighted average number of common shares outstanding plus potentially dilutive shares.  The dilutive effect of employee stock-based compensation is included in the computation of diluted net income per share.  The dilutive effect of stock-based compensation is calculated using the treasury stock method and expected proceeds upon exercise or issuance of the stock-based compensation.  The following table summarizes the shares used in computing basic and diluted net income per share:

	2016		2015		2014
Weighted average common shares, basic		12,845,955		12,831,687		12,879,912
Effect of dilutive securities:
Employee stock-based compensation		18		-		-
Weighted average common shares, diluted		12,845,973		12,831,687		12,879,912

Under the employee stock purchase plan, all full-time employees who have been employed at least ninety consecutive days may purchase shares of the Company's common stock limited to 10% of gross compensation.  The purchase price is 95% of the fair market value (as defined).  Shares issued during 2016, 2015 and 2014 were 5,115, 7,417 and 7,431, respectively.  As of December 31, 2016, 75,596 authorized shares remain unissued under the plan.

The Company has a Dividend Reinvestment and Direct Stock Purchase and Sale Plan (“the Plan”), which is available to both current shareholders and the general public.  On October 3, 2016, the Company filed a Registration Statement on Form S-3 with the SEC to authorize an additional 331,000 shares and rollover the unissued 170,240 shares authorized under the 2013 Form S-3, for issuance under the new Prospectus for the Plan.  In addition to providing more shares for the Plan, the new Prospectus identified a change in the Company’s stock transfer agent.  Under the optional dividend reinvestment portion of the Plan, holders of the Company's common stock may purchase additional shares instead of receiving cash dividends.  The purchase price is 95% of the fair market value (as defined).  Under the direct stock purchase portion of the Plan, purchases were made weekly at 100% of the stock’s fair market value through October 19, 2016.  Beginning in November 2016, purchases are made monthly at 100% of the stock’s fair market value, as defined in the new Prospectus.  Other provisions of the Plan were left substantially unchanged.  The Registration Statement was declared effective by the SEC on November 16, 2016.  Shares issued during 2016, 2015 and 2014 under both Prospectus’ were 80,343, 95,451 and 126,379, respectively.  As of December 31, 2016, 492,639 authorized shares remain unissued under the plan.

On March 11, 2013, the Board of Directors, or the Board, authorized a share repurchase program granting the Company authority to repurchase up to 1,200,000 shares of the Company’s common stock from time to time.  The stock repurchase program has no specific end date and the Company may repurchase shares in the open market or through privately negotiated transactions.  The Company may suspend or discontinue the repurchase program at any time.  During 2016, 2015 and 2014, the Company repurchased and retired 46,771, 121,012 and 282,570 shares, respectively.  As of December 31, 2016, 655,233 shares remain available for repurchase.

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6. Stock Based Compensation

On May 2, 2016, the Company's stockholders approved The York Water Company Long-Term Incentive Plan, or LTIP.  The LTIP was adopted to provide the incentive of long-term stock-based awards to officers, directors and key employees. The LTIP provides for the granting of nonqualified stock options, incentive stock options, stock appreciation rights, performance restricted stock grants and units, restricted stock grants and units, and unrestricted stock grants.  A maximum of 100,000 shares of common stock may be issued under the LTIP over the ten-year life of the plan.  The maximum number of shares of common stock subject to awards that may be granted to any participant in any one calendar year is 2,000.  Shares of common stock issued under the LTIP may be treasury shares or authorized but unissued shares.  The LTIP is administered by the Compensation Committee of the Board, or the full Board, provided that the full Board administers the LTIP as it relates to awards to non-employee directors of the Company.  The Company filed a registration statement with the Securities and Exchange Commission on May 11, 2016 covering the offering of stock under the LTIP.  The LTIP was effective on July 1, 2016.

On November 21, 2016, the Board awarded stock to non-employee directors effective November 28, 2016.  This stock award vested immediately.  On the same date, the Compensation Committee awarded restricted stock to officers and key employees effective November 28, 2016.  This restricted stock award vests ratably over three years beginning November 28, 2016.

The restricted stock awards provide the grantee with the rights of a shareholder, including the right to receive dividends and to vote such shares, but not the right to sell or otherwise transfer the shares during the restriction period.  As a result, the awards are included in common shares outstanding on the balance sheet.  Restricted stock awards result in compensation expense valued at the fair market value of the stock on the date of the grant and are amortized ratably over the restriction period.

The following tables summarize the stock grant amounts and activity for the year ended December 31, 2016.  No stock awards were granted previously.

	Number of Shares			Grant Date Weighted Average Fair Value
Nonvested at beginning of the year		-			-
Granted		1,231		$	37.20
Vested		(571	)	$	37.20
Forfeited		-			-
Nonvested at end of the year		660		$	37.20

For the year ended December 31, 2016, the statement of income includes $22 of stock-based compensation and related recognized tax benefits of $9.  The total fair value of the shares vested in the year ended December 31, 2016 was $21.  Total stock based compensation related to nonvested awards not yet recognized is $24 which will be recognized over the next three years.

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7. Employee Benefit Plans

Pensions

The Company maintains a general and administrative and a union-represented defined benefit pension plan covering all of its employees hired prior to May 1, 2010.  Employees hired after May 1, 2010 are eligible for an enhanced 401(k) plan rather than a defined benefit plan.  The benefits under the defined benefit plans are based upon years of service and compensation near retirement.  The Company amended its defined benefit pension plans in 2014, generally limiting the years of eligible service under the plans to 30 years. The Company's funding policy is to contribute annually the amount permitted by the PPUC to be collected from customers in rates, but in no case less than the minimum Employee Retirement Income Security Act (ERISA) required contribution.

The following table sets forth the plans' funded status as of December 31, 2016 and 2015.  The measurement of assets and obligations of the plans is as of December 31, 2016 and 2015.

Obligations and Funded Status At December 31	2016			2015
Change in Benefit Obligation
Pension benefit obligation beginning of year	$	39,469		$	40,884
Service cost		1,018			1,166
Interest cost		1,599			1,515
Actuarial gain		(43	)		(2,873	)
Benefit payments		(1,289	)		(1,223	)
Pension benefit obligation end of year		40,754			39,469
Change in Plan Assets
Fair value of plan assets beginning of year		31,835			30,575
Actual return on plan assets		2,621			183
Employer contributions		2,300			2,300
Benefits paid		(1,289	)		(1,223	)
Fair value of plan assets end of year		35,467			31,835
Funded Status of Plans at End of Year	$	(5,287	)	$	(7,634	)

The accounting standards require that the funded status of defined benefit pension plans be fully recognized on the balance sheets.  They also call for the unrecognized actuarial gain or loss, the unrecognized prior service cost and the unrecognized transition costs to be adjustments to shareholders’ equity (accumulated other comprehensive income).  Due to a rate order granted by the PPUC, the Company is permitted under the accounting standards to defer the charges otherwise recorded in accumulated other comprehensive income as a regulatory asset.  Management believes these costs will be recovered in future rates charged to customers.  The liability for the funded status of the Company’s pension plans is recorded in “Deferred employee benefits” on its balance sheets.

In 2016, the plans recognized a small actuarial gain.  The Company adopted the new mortality improvement scale (MP-2016), but recognized a 20 basis point decrease in the discount rate and lowered the expected long-term return on plan assets from 7.00% to 6.75%.  In 2015, the plans recognized an actuarial gain due to the 40 basis point increase in the discount rate and the adoption of an adjusted RP-2014 mortality table and improvement scale (MP-2015) which lessened the impact of the RP-2014 mortality table.  The Company uses the corridor method to amortize actuarial gains and losses.  Gains and losses over 10% of the greater of pension benefit obligation or the market value of assets are amortized over the average future service of plan participants expected to receive benefits.

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Changes in plan assets and benefit obligations recognized in regulatory assets are as follows:

	2016			2015
Net gain arising during the period	$	(432	)	$	(826	)
Recognized net actuarial loss		(561	)		(705	)
Recognized prior service credit		13			13
Total changes in regulatory asset during the year	$	(980	)	$	(1,518	)

Amounts recognized in regulatory assets that have not yet been recognized as components of net periodic benefit cost consist of the following at December 31:

	2016			2015
Net loss	$	9,454		$	10,447
Prior service credit		(114	)		(127	)
Regulatory asset	$	9,340		$	10,320

Components of net periodic benefit cost are as follows:

	2016			2015			2014
Service cost	$	1,018		$	1,166		$	952
Interest cost		1,599			1,515			1,444
Expected return on plan assets		(2,233	)		(2,229	)		(1,986	)
Amortization of loss		561			705			126
Amortization of prior service credit		(13	)		(13	)		(13	)
Rate-regulated adjustment		1,368			1,156			1,659
Net periodic benefit cost	$	2,300		$	2,300		$	2,182

The rate-regulated adjustment set forth above is required in order to reflect pension expense for the Company in accordance with the method used in establishing water rates.  The Company is permitted by rate order of the PPUC to expense pension costs to the extent of contributions and defer the remaining expense to regulatory assets to be collected in rates at a later date as additional contributions are made.  During 2016, the deferral decreased $1,368.

The estimated costs for the defined benefit pension plans relating to the December 31, 2016 balance sheet that will be amortized from regulatory assets into net periodic benefit cost over the next fiscal year are as follows:

Net loss	$	500
Net prior service credit		(13	)
		487

The Company plans to contribute $2,300 to the plans in 2017.

The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid in each of the next five years and the subsequent five years in the aggregate:

2017		2018		2019		2020		2021			2022-2026
$	1,600	$	1,731	$	1,865	$	1,875	$	1,938	$	11,218

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The following tables show the projected benefit obligation, the accumulated benefit obligation and the fair value of plan assets as of December 31:

	2016		2015
Projected benefit obligation	$	40,754	$	39,469
Fair value of plan assets		35,467		31,835

	2016		2015
Accumulated benefit obligation	$	37,822	$	36,302
Fair value of plan assets		35,467		31,835

Weighted-average assumptions used to determine benefit obligations at December 31:

	2016			2015
Discount rate		4.00	%		4.20	%
Rate of compensation increase		2.50% - 3.00	%		2.50% - 3.00	%

Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31:

	2016			2015			2014
Discount rate		4.20	%		3.80	%		4.65	%
Expected long-term return on plan assets		6.75	%		7.00	%		7.00	%
Rate of compensation increase		2.50% - 3.00	%		3.00	%		3.00	%

The selected long-term rate of return on plan assets was primarily based on the asset allocation of each of the plan's assets (approximately 50% to 70% equity securities and 30% to 50% fixed income securities).  Analysis of the historic returns of these asset classes and projections of expected future returns were considered in setting the long-term rate of return.

The investment objective of the Company's defined benefit pension plans is that of Growth and Income.  The weighted-average target asset allocations are 50% to 70% equity securities, 30% to 50% fixed income securities, and 0% to 10% reserves (cash and cash equivalents).  Within the equity category, the Company's target allocation is approximately 60-95% large cap, 0-25% mid cap, 0-10% small cap, 0-25% International Developed Nations, and 0-10% International Emerging Nations.  Within the fixed income category, its target allocation is approximately 15-55% U.S. Treasuries, 0–22% Federal Agency securities, 0-40% corporate bonds, 15-55% mortgage-backed securities, 0-20% international, and 0-20% high yield bonds.  The Company's investment performance objectives over a three to five year period are to exceed the annual rate of inflation as measured by the Consumer Price Index by 3%, and to exceed the annualized total return of specified benchmarks applicable to the funds within the asset categories.

Further guidelines within equity securities include: (1) holdings in any one company cannot exceed 5% of the portfolio; (2) a minimum of 20 individual stocks must be included in the domestic stock portfolio; (3) a minimum of 30 individual stocks must be included in the international stock portfolio; (4) equity holdings in any one industry cannot exceed 20-25% of the portfolio; and (5) only U.S.-denominated currency securities are permitted.

Further guidelines for fixed income securities include: (1) fixed income holdings in a single issuer are limited to 5% of the portfolio; (2) acceptable investments include money market securities, U.S. Government and its agencies and sponsored entities' securities, mortgage-backed and asset-backed securities, corporate securities and mutual funds offering high yield bond portfolios; (3) purchases must be limited to investment grade or higher; (4) non-U.S. dollar denominated securities are not permissible; and (5) high risk derivatives are prohibited.

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The fair values of the Company's pension plan assets at December 31, 2016 and 2015 by asset category and fair value hierarchy level are as follows.  The majority of the valuations are based on quoted prices on active markets (Level 1), with the remaining valuations based on broker/dealer quotes, active market makers, models, and yield curves (Level 2).

	Total Fair Value				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)
Asset Category	2016		2015		2016		2015		2016		2015
Cash and Money Market Funds (a)	$	635	$	1,205	$	635	$	1,205	$	-	$	-
Equity Securities:
Common Equity Securities (b)		2,969		2,686		2,969		2,686		-		-
Equity Mutual Funds (c)		21,107		18,017		21,107		18,017		-		-
Fixed Income Securities:
U.S. Treasury Obligations		853		833		-		-		853		833
Corporate and Foreign Bonds (d)		3,439		3,427		-		-		3,439		3,427
Fixed Income Mutual Funds (e)		6,464		5,667		6,464		5,667		-		-
Total Plan Assets	$	35,467	$	31,835	$	31,175	$	27,575	$	4,292	$	4,260

(a) The portfolios are designed to keep approximately three months of distributions in immediately available funds.  The Company was more heavily-weighted in cash as of December 31, 2015 due to market volatility.

(b) This category includes investments in U.S. common stocks and foreign stocks trading in the U.S. widely distributed among consumer discretionary, consumer staples, healthcare, information technology, financial services, telecommunications, industrials and energy.  The individual stocks are primarily large cap stocks which track with the S&P 500.

(c) This category currently includes a majority of investments in closed-end mutual funds as well as domestic equity mutual funds and international mutual funds which give the portfolio exposure to mid and large cap index funds as well as international diversified index funds.

(d) This category currently includes only U.S. corporate bonds and notes widely distributed among consumer discretionary, consumer staples, healthcare, information technology and financial services.

(e) This category includes fixed income investments in mutual funds which include government, corporate and mortgage securities of both the U.S. and other countries.  The mortgage-backed securities and non-U.S. corporate and sovereign investments add further diversity to the fixed income portion of the portfolio.

Defined Contribution Plan

The Company has a savings plan pursuant to the provisions of section 401(k) of the Internal Revenue Code.  For employees hired before May 1, 2010, this plan provides for elective employee contributions of up to 15% of compensation and Company matching contributions of 100% of the participant's contribution, up to a maximum annual Company contribution of $2.8 for each employee.

Employees hired after May 1, 2010 are entitled to an enhanced feature of the plan.  This feature provides for elective employee contributions of up to 15% of compensation and Company matching contributions of 100% of the participant's contribution, up to a maximum of 4% of the employee's compensation.  In addition, the Company will make an annual contribution of $1.2 to each employee's account whether or not they defer their own compensation.  Employees eligible for this enhanced 401(k) plan feature are not eligible for the defined benefit plans.  As of December 31, 2016, twenty-two employees were participating in the enhanced feature of the plan.  The Company's contributions to both portions of the plan amounted to $261 in 2016, $262 in 2015, and $239 in 2014.

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Deferred Compensation

The Company has non-qualified deferred compensation and supplemental retirement agreements with certain members of management. The future commitments under these arrangements are offset by corporate-owned life insurance policies.  At December 31, 2016 and 2015, the present value of the future obligations was approximately $3,894 and $3,608, respectively.  The insurance policies included in other assets had a total cash value of approximately $2,830 and $3,378 at December 31, 2016 and 2015, respectively.  The Company's net expenses under the plans amounted to $557 in 2016, $380 in 2015 and $658 in 2014.

Other

The Company has a retiree life insurance program which pays the beneficiary of a retiree $2 upon the retiree’s death.  At December 31, 2016 and 2015, the present value of the future obligations was approximately $103 and $98, respectively.  There is no trust or insurance covering this future liability, instead the Company will pay these benefits out of its general assets.  The Company’s net (income) expenses under the plan amounted to $9 in 2016, $(4) in 2015 and $25 in 2014.

8. Rate Matters

From time to time, the Company files applications for rate increases with the PPUC and is granted rate relief as a result of such requests.  The most recent rate request was filed by the Company on May 29, 2013 and sought an increase in rates designed to produce additional annual water revenues of $7,116 and additional annual wastewater revenues of $28.  Effective February 28, 2014, the PPUC authorized an increase in water rates designed to produce approximately $4,972 in additional annual revenues, and an increase in wastewater rates for the Asbury Pointe subdivision to produce approximately $28 in additional annual revenues.  The Company anticipates that it will file a rate increase request in 2017.

The PPUC permits water utilities to collect a distribution system improvement charge, or DSIC.  The DSIC allows the Company to add a charge to customers' bills for qualified replacement costs of certain infrastructure without submitting a rate filing.  This surcharge mechanism typically adjusts periodically based on additional qualified capital expenditures completed or anticipated in a future period.  The DSIC is capped at 5% of base rates, and is reset to zero when new base rates that reflect the costs of those additions become effective or when a utility's earnings exceed a regulatory benchmark.  The surcharge reset to zero when the new base rates took effect on February 28, 2014.  Since the reset, the Company’s earnings exceeded the regulatory benchmark, preventing the collection of a DSIC.  The DSIC provided no revenues in 2016 or 2015, and $283 in 2014.  The DSIC is subject to audit by the PPUC.

9. Notes Receivable and Customers' Advances for Construction

The Company entered into an agreement with a municipality to extend water service into a previously formed water district.  The Company loaned funds to the municipality to cover the costs related to the project.  The municipality concurrently advanced these funds back to the Company in the form of customers' advances for construction.  The municipality is required by enacted ordinance to charge application fees and water revenue surcharges (fees) to customers connected to the system, which are remitted to the Company.  The note principal and the related customer advance are reduced periodically as operating revenues are earned by the Company from customers connected to the system and refunds of the advance are made.  There is no due date for the notes or expiration date for the advance.  Two notes receivable were fully repaid in 2015.

The Company has recorded interest income of $100 in 2016, $110 in 2015 and $107 in 2014.  The interest rate on the note outstanding at December 31, 2016 is 7.5%.

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Included in the accompanying balance sheets at December 31, 2016 and 2015 were the following amounts related to these projects.

	2016		2015
Notes receivable, including interest	$	255	$	255
Customers' advances for construction		307		310

The Company has other customers' advances for construction totaling $6,795 and $7,190 at December 31, 2016 and 2015, respectively.

10. Commitments

Based on its capital budget, the Company anticipates construction and acquisition expenditures for 2017 and 2018 of approximately $22,800 and $15,600, respectively, exclusive of any acquisitions not yet approved.  The Company plans to finance ongoing capital expenditures with internally-generated funds, borrowings against the Company’s lines of credit, proceeds from the issuance of common stock under its dividend reinvestment and direct stock purchase and sale plan and ESPP, potential common stock or debt issues and customer advances and contributions.

The Company has committed a total of approximately $10,153 for an additional raw water pumping station and force main, of which $8,445 remains to be incurred as of December 31, 2016.  The Company may make additional commitments for this project in 2017.

During its recently completed triennial testing, the Company determined it exceeded the action level for lead at the customer's tap as established by the Lead and Copper Rule, or LCR, issued by the U.S. Environmental Protection Agency.  The rule allows the Company to have five samples of the 50 high-risk homes tested exceed the action level of 15 parts per billion, or PPB.  The testing found that six properties with lead service lines, all built before 1935, exceeded the action level, and the reported exceedance amount was 1 PPB.  The Company has determined that only 3% of the company-owned service lines in the system are lead.  The Company will be required, per the LCR, to engage in more frequent testing for lead, to provide public education, and annually replace 7% of the remaining company-owned lead service lines in its distribution system.  The Company has announced plans to perform in excess of the required actions.  Specifically, the Company will provide the affected customers with a free water test and a 200 gallon per month credit to flush their line in order to reduce any lead content until their lead service line has been replaced.  The cost of the water tests and flushing credits was $9 for the year ended December 31, 2016 and is expected to be approximately an additional $57 over the next four years.

In addition, the Company has entered into a consent order agreement with the Pennsylvania Department of Environmental Protection.  Under the agreement, the Company has committed to exceed the LCR replacement schedule by replacing all of the remaining company-owned lead service lines within the next four years.  The cost for these service line replacements was approximately $75 for the year ended December 31, 2016 and is included in utility plant.  Additional replacements are expected to be approximately $2,400 over the next four years, and will be integrated into the Company's annual capital budgets.

Finally, the Company has been granted approval by the PPUC to modify its tariff to allow the replacement of lead customer-owned service lines that are discovered when the Company replaces its lead service lines over four years, and to allow the annual replacement of up to 400 lead customer-owned service lines whenever they are discovered, regardless of the material used for the Company-owned service line over nine years.  The tariff modification allows the Company to replace customer-owned service lines at its own initial cost.  The Company will record the costs as a regulatory asset to be recovered in future base rates to customers, over a reasonable period of at least four but not more than six years.  Replacements are expected to be approximately $2,080 under the four-year tariff modification, assuming all company-owned lead service lines are connected to a customer-owned lead service line.  The Company is unable to develop a total estimated cost of the nine-year tariff modification replacements as it does not know how many customer-owned lead service lines are in use.

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As of December 31, 2016, approximately 34% of the Company's full time employees are under union contract.  The current contract was ratified in March 2014 and expires on April 30, 2017.  Management is currently preparing for negotiations with the union leadership.  The Company expects to reach an operationally and fiscally responsible agreement with no interruption of service.

The Company is involved in certain legal and administrative proceedings before various courts and governmental agencies concerning water service and other matters.  The Company expects that the ultimate disposition of these proceedings will not have a material effect on the Company's financial position, results of operations and cash flows.

11. Fair Value of Financial Instruments

The accounting standards regarding fair value measurements establish a fair value hierarchy which indicates the extent to which inputs used in measuring fair value are observable in the market.  Level 1 inputs include quoted prices for identical instruments and are the most observable.  Level 2 inputs include quoted prices for similar assets and observable inputs such as interest rates, commodity rates and yield curves.  Level 3 inputs are not observable in the market and include management’s own judgments about the assumptions market participants would use in pricing the asset or liability.

The Company has recorded its interest rate swap liability at fair value in accordance with the standards.  The liability is recorded under the caption “Other deferred credits” on the balance sheets.  The table below illustrates the fair value of the interest rate swap as of the end of the reporting period.

Description	December 31, 2016	Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2)
Interest Rate Swap	$2,292	$2,292

Fair values are measured as the present value of all expected future cash flows based on the LIBOR-based swap yield curve as of the date of the valuation.  These inputs to this calculation are deemed to be Level 2 inputs.  The balance sheet carrying value reflects the Company's credit quality as of December 31, 2016.  The rate used in discounting all prospective cash flows anticipated to be made under this swap reflects a representation of the yield to maturity for 30-year debt on utilities rated A- as of December 31, 2016.  The use of the Company's credit quality resulted in a reduction in the swap liability of $157 as of December 31, 2016.  The fair value of the swap reflecting the Company's credit quality as of December 31, 2015 is shown in the table below.

Description	December 31, 2015	Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2)
Interest Rate Swap	$2,511	$2,511

The carrying amount of current assets and liabilities that are considered financial instruments approximates fair value as of the dates presented.  The Company's total long-term debt, with a carrying value of $87,488 at December 31, 2016, and $87,542 at December 31, 2015, had an estimated fair value of approximately $99,000 and $102,000, respectively.  The estimated fair value of debt was calculated using a discounted cash flow technique that incorporates a market interest yield curve with adjustments for duration and risk profile.  These inputs to this calculation are deemed to be Level 2 inputs.  The Company recognized its credit rating in determining the yield curve, and did not factor in third party credit enhancements including bond insurance on the 2006 York County Industrial Development Authority issue and the letter of credit on the 2008 PEDFA Series A issue.

Customers' advances for construction and notes receivable have carrying values at December 31, 2016 of $7,102 and $255, respectively.  At December 31, 2015, customers' advances for construction and notes receivable had carrying values of $7,500 and $255, respectively.  The relative fair values of these amounts cannot be accurately estimated since the timing of future payment streams is dependent upon several factors, including new customer connections, customer consumption levels and future rate increases.

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12. Taxes Other than Income Taxes

The following table provides the components of taxes other than income taxes:

	2016		2015		2014
Regulatory Assessment	$	243	$	242	$	218
Property		339		334		339
Payroll, net of amounts capitalized		530		510		494
Capital Stock		1		42		59
Other		1		1		1
Total taxes other than income taxes	$	1,114	$	1,129	$	1,111

13. Selected Quarterly Financial Data (Unaudited)

	First		Second		Third		Fourth		Year
2016
Operating revenues	$	11,278	$	11,820	$	12,601	$	11,885	$	47,584
Operating income		5,214		5,695		6,414		5,565		22,888
Net income		2,486		2,847		3,571		2,942		11,846
Basic earnings per share		0.19		0.23		0.27		0.23		0.92
Diluted earnings per share		0.19		0.23		0.27		0.23		0.92
Dividends declared per share		0.1555		0.1555		0.1555		0.1602		0.6267
2015
Operating revenues	$	11,209	$	11,895	$	12,368	$	11,617	$	47,089
Operating income		5,134		5,682		6,353		5,492		22,661
Net income		2,528		2,925		3,520		3,516		12,489
Basic earnings per share		0.20		0.22		0.28		0.27		0.97
Diluted earnings per share		0.20		0.22		0.28		0.27		0.97
Dividends declared per share		0.1495		0.1495		0.1495		0.1555		0.6040

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures

The Company's management, with the participation of the Company's President and Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the Company's disclosure controls and procedures as of the end of the period covered by this report.  Based upon this evaluation, the Company's President and Chief Executive Officer along with the Chief Financial Officer concluded that the Company's disclosure controls and procedures as of the end of the period covered by this report are effective such that the information required to be disclosed by the Company in reports filed under the Securities Exchange Act of 1934 is (i) recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms and (ii) accumulated and communicated to the Company's management, including the President and Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding disclosure.  A controls system cannot provide absolute assurance, however, that the objectives of the controls system are met, and no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within a company have been detected.

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No change in the Company's internal control over financial reporting occurred during the Company's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting.

Management’s Report on Internal Control Over Financial Reporting

Management of The York Water Company (the "Company") is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Rule 13a-15(f) under the Securities Exchange Act of 1934. Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company's internal control over financial reporting includes those policies and procedures that pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.  Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Management evaluated the Company's internal control over financial reporting as of December 31, 2016.  In making this assessment, management used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control-Integrated Framework (2013 framework).  As a result of this assessment and based on the criteria in the COSO framework, management has concluded that, as of December 31, 2016, the Company's internal control over financial reporting was effective.

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Report of Independent Registered Public Accounting Firm

Board of Directors and Stockholders of

The York Water Company

We have audited The York Water Company's internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control—Integrated Framework (2013 framework) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The York Water Company's management is responsible for maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control over Financial Reporting. Our responsibility is to express an opinion on The York Water Company's internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with accounting principles generally accepted in the United States of America. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, The York Water Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2016, based on criteria established in Internal Control—Integrated Framework (2013 framework) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the balance sheets and the related statements of income, common stockholders' equity, and cash flows of The York Water Company, and our report dated March 7, 2017 expressed an unqualified opinion.

/s/Baker Tilly Virchow Krause, LLP

Baker Tilly Virchow Krause, LLP

York, Pennsylvania

March 7, 2017

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Item 9B. Other Information.

None.

PART III

Item 10. Directors, Executive Officers and Corporate Governance.

Directors of the Registrant

The information set forth under the caption "Election of Directors" of the 2017 Proxy Statement is incorporated herein by reference.

Executive Officers of the Registrant

The information set forth under the caption "Executive Officers of the Company" of the 2017 Proxy Statement is incorporated herein by reference.

Compliance with Section 16(a) of the Exchange Act

The information set forth under the caption "Section 16(a) Beneficial Ownership Reporting Compliance" of the 2017 Proxy Statement is incorporated herein by reference.

Code of Ethics

The information set forth under the caption "Code of Ethics" of the 2017 Proxy Statement is incorporated herein by reference.

Audit Committee

The information set forth under the caption "Board Committees and Functions" of the 2017 Proxy Statement is incorporated herein by reference.

Item 11. Executive Compensation.

The information set forth under the caption "Compensation of Directors and Executive Officers" of the 2017 Proxy Statement is incorporated herein by reference.

Compensation Committee Interlocks and Insider Participation

The information set forth under the caption "Compensation Committee Interlocks and Insider Participation" of the 2017 Proxy Statement is incorporated herein by reference.

Compensation Committee Report

The information set forth under the caption "Compensation Committee Report" of the 2017 Proxy Statement is incorporated herein by reference.

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Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.

Securities Authorized for Issuance under Equity Compensation Plans

The following table provides information for the equity compensation plan of the Company as of December 31, 2016:

Plan Category	Number of securities to be issued upon exercise of outstanding options, warrants and rights (a)	Weighted-average exercise price of outstanding options, warrants and rights (b)	Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) (c)
Equity compensation plans approved by security holders*	-	-	98,769
Equity compensation plans not approved by security holders	-	-	0

*Amounts are subject to adjustment to reflect stock dividends, stock splits, or other relevant changes in capitalization.

In addition, the Company has an employee stock purchase plan that allows employees to purchase stock at a 5% discount up to a maximum of 10% of their gross compensation.  Under this plan, 75,596 authorized shares remain unissued as of December 31, 2016.

The information set forth under the caption "Security Ownership of Certain Beneficial Owners and Management" of the 2017 Proxy Statement is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions, and Director Independence.

The information set forth under the captions "Director Independence" and "Related Party Transactions" of the 2017 Proxy Statement is incorporated herein by reference.

Item 14. Principal Accounting Fees and Services.

The information set forth under the caption, "Principal Accountant's Fees and Services" of the 2017 Proxy Statement is incorporated herein by reference.

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PART IV

Item 15. Exhibits and Financial Statement Schedules.

(a) Certain documents filed as part of the Form 10-K.

1. The financial statements set forth under Item 8 of this Form 10-K.

2. Financial Statement schedules.

Schedule	Schedule	Page
Number	Description	Number
II	Valuation and Qualifying Accounts for the years ended December 31, 2016, 2015, and 2014	65

The report of the Company's independent registered public accounting firm with respect to the financial statement schedule appears on page 31.

All other financial statements and schedules not listed have been omitted since the required information is included in the financial statements or the notes thereto, or is not applicable or required.

3. Exhibits required by Item 601 of Regulation S-K.

The exhibits are set forth in the Index to Exhibits shown on pages 67 through 70.

Page 64

THE YORK WATER COMPANY

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS

FOR THE THREE YEARS ENDED DECEMBER 31, 2016

			Additions
Description	Balance at Beginning of Year		Charged to Cost and Expenses		Recoveries		Deductions		Balance at End of Year
FOR THE YEAR ENDED DECEMBER 31, 2016 Reserve for uncollectible accounts	$	315,000	$	291,108	$	38,976	$	340,084	$	305,000
FOR THE YEAR ENDED DECEMBER 31, 2015 Reserve for uncollectible accounts	$	325,000	$	292,248	$	40,681	$	342,929	$	315,000
FOR THE YEAR ENDED DECEMBER 31, 2014 Reserve for uncollectible accounts	$	320,000	$	322,499	$	44,071	$	361,570	$	325,000

The Deductions column above represents write-offs of accounts receivable during the applicable year.

Page 65

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	THE YORK WATER COMPANY
	(Registrant)
Dated: March 6, 2017	By: /s/Jeffrey R. Hines
	Jeffrey R. Hines
	President and CEO

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By: /s/Jeffrey R. Hines	By: /s/Kathleen M. Miller
Jeffrey R. Hines	Kathleen M. Miller
(Principal Executive Officer and Director)	(Principal Accounting Officer and Chief Financial Officer)
Dated: March 6, 2017	Dated: March 6, 2017
Directors:	Date:
By: /s/Erin C. Casey	March 6, 2017
Erin C. Casey
By: /s/James H. Cawley	March 6, 2017
James H. Cawley
By: /s/Michael W. Gang	March 6, 2017
Michael W. Gang
By: /s/Jeffrey R. Hines	March 6, 2017
Jeffrey R. Hines
By: /s/George W. Hodges	March 6, 2017
George W. Hodges
By: /s/George Hay Kain, III	March 6, 2017
George Hay Kain, III
By: /s/Jody L. Keller	March 6, 2017
Jody L. Keller
By: _______________________	March 6, 2017
Robert P. Newcomer
By: /s/Steven R. Rasmussen	March 6, 2017
Steven R. Rasmussen
By: /s/Ernest J. Waters	March 6, 2017
Ernest J. Waters

Page 66

INDEX TO EXHIBITS

Exhibit Number	Exhibit Description	Page Number of Incorporation By Reference
3	Amended and Restated Articles of Incorporation	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 3.1 to Form 8-K dated May 4, 2010.
3.1	Amended and Restated By-Laws	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 3.1 to Form 8-K dated January 26, 2012.
4.1	Dividend Reinvestment and Direct Stock Purchase and Sale Plan	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission on Form S-3 dated October 3, 2016 (File No. 333-213942).
4.2	Indenture, dated as of October 1, 2010, by and between The York Water Company and Manufacturers and Traders Trust Company, as trustee, relative to the $15,000,000 5.0% Monthly Senior Notes	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 4.1 to the Company's October 8, 2010 Form 8-K.
4.3	First Supplemental Indenture, dated as of October 1, 2010, by and between The York Water Company and Manufacturers and Traders Trust Company, as trustee (which includes the form of Note)	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 4.2 to the Company's October 8, 2010 Form 8-K.
10.1	Articles of Agreement Between The York Water Company and Springettsbury Township relative to Extension of Water Mains dated April 17, 1985	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.1 to the Company's 1989 Form 10-K.
10.2	Note Agreement relative to the $6,000,000 10.17% Senior Notes, Series A and $5,000,000 9.60% Senior Notes, Series B dated January 2, 1989	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 4.5 to the Company's 1989 Form 10-K.
10.3	Note Agreement relative to the $6,500,000 10.05% Senior Notes, Series C dated August 15, 1990	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 4.6 to the Company's 1990 Form 10-K.

Page 67

Exhibit Number	Exhibit Description	Page Number of Incorporation By Reference
10.4	Note Agreement relative to the $7,500,000 8.43% Senior Notes, Series D dated December 15, 1992	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 4.7 to the Company's 1992 Form 10-K.
10.5	Promissory Note between The York Water Company and the Pennsylvania Infrastructure Investment Authority for $800,000 at 1.00% dated August 24, 1999	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 4.2 to the Company's 2000 Form 10-K.
10.6	Loan Agreement between The York Water Company and York County Industrial Development Authority, dated as of October 1, 2006 relative to the $10,500,000 4.75% Exempt Facilities Revenue Bonds	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 10.3 to the Company's September 15, 2009 Form 8-K.
10.7	Trust Indenture dated October 1, 2006 between the York County Industrial Development Authority and Manufacturers and Traders Trust Company, as trustee	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 10.4 to the Company's September 15, 2009 Form 8-K.
10.8	Variable Rate Loan Agreement between The York Water Company and Pennsylvania Economic Development Financing Authority, dated as of May 1, 2008 relative to the $12,000,000 Exempt Facilities Revenue Bonds	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.1 to the Company's May 12, 2008 Form 8-K.
10.9	Trust Indenture dated as of May 1, 2008 between Pennsylvania Economic Development Financing Authority and Manufacturers and Traders Trust Company, as trustee	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 10.5 to the Company's September 15, 2009 Form 8-K.
10.10	Reimbursement, Credit and Security Agreement, dated as of May 1, 2008 between The York Water Company and PNC Bank, National Association	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.3 to the Company's May 12, 2008 Form 8-K.
10.11	Loan Agreement between The York Water Company and Pennsylvania Economic Development Financing Authority, entered into April 25, 2014 and dated as of April 1, 2014 relative to the $14,880,000 4.50% Exempt Facilities Revenue Refunding Bonds	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.1 to the Company's April 28, 2014 Form 8-K.

Page 68

Exhibit Number	Exhibit Description	Page Number of Incorporation By Reference
10.12	Trust Indenture entered into April 25, 2014 and dated as of April 1, 2014 between Pennsylvania Economic Development Financing Authority and Manufacturers and Traders Trust Company, as trustee	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 10.2 to the Company's April 28, 2014 Form 8-K.
10.13	Loan Agreement between The York Water Company and York County Industrial Development Authority, entered into July 23, 2015 and dated as of July 1, 2015 relative to the $10,000,000 4.00% - 4.50% Exempt Facilities Revenue Bonds.	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 10.1 to the Company's July 24, 2015 Form 8-K.
10.14	Trust Indenture entered into July 23, 2015 and dated as of July 1, 2015 between York County Industrial Development Authority and Manufacturers and Traders Trust Company, as trustee	Incorporated herein by reference. Filed previously with the Securities and Exchange Commission as Exhibit 10.2 to the Company's July 24, 2015 Form 8-K.
10.15	Cash Incentive Plan	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.1 to the Company's January 28, 2005 Form 8-K.
10.16	Form of Amended and Restated Change in Control Agreement made as of November 5, 2008 between The York Water Company and each of the individuals listed on a schedule attached thereto, which plans are identical in all material respects except as indicated in the attached schedule	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.17 to the Company's March 8, 2011 Form 10-K.
10.17	Form of Amended and Restated Supplemental Retirement Plan made as of January 1, 2009 between The York Water Company and each of the individuals listed on a schedule attached thereto, which plans are identical in all material respects except as indicated in the attached schedule	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.18 to the Company's March 8, 2011 Form 10-K.
10.18	Form of Amended and Restated Deferred Compensation Plan made as of July 1, 2015 between The York Water Company and each of the individuals listed on Schedule 10.18 thereto, which plans are identical in all material respects except as indicated in Schedule 10.18	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.18 to the Company's March 8, 2016 Form 10-K.

Page 69

Exhibit Number	Exhibit Description	Page Number of Incorporation By Reference
10.19	Form of Amended and Restated Deferred Compensation Plan made as of January 1, 2009 between The York Water Company and each of the individuals listed on a schedule attached thereto, which plans are identical in all material respects except as indicated in Schedule 10.19	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 10.19 to the Company's March 8, 2011 Form 10-K.
10.20	Long-Term Incentive Plan	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission on Form S-8 dated May 11, 2016 (File No. 333-211287).
10.21	Employee Stock Purchase Plan	Filed herewith.
14	Company Code of Conduct	Incorporated herein by reference.  Filed previously with the Securities and Exchange Commission as Exhibit 14 to the Company's August 6, 2014 Form 10-Q.
23	Consent of Baker Tilly Virchow Krause, LLP, Independent Registered Public Accounting Firm	Filed herewith.
31.1	Certification pursuant to Rule 13a-15(f) and 15d-15(f)	Filed herewith.
31.2	Certification pursuant to Rule 13a-15(f) and 15d-15(f)	Filed herewith.
32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Filed herewith.
32.2	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	Filed herewith.
101.INS	XBRL Instance Document	Filed herewith.
101.SCH	XBRL Taxonomy Extension Schema	Filed herewith.
101.CAL	XBRL Taxonomy Extension Calculation Linkbase	Filed herewith.
101.DEF	XBRL Taxonomy Extension Definition Linkbase	Filed herewith.
101.LAB	XBRL Taxonomy Extension Label Linkbase	Filed herewith.
101.PRE	XBRL Taxonomy Extension Presentation Linkbase	Filed herewith.

Page 70

EX-23

EXHIBIT 23

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-213942) and Forms S-8 (No. 333-191497 and No. 333-211287) of The York Water Company of our reports dated March 7, 2017, relating to the financial statements and financial statement schedule and the effectiveness of The York Water Company's internal control over financial reporting which appear in this Form 10-K.

/s/Baker Tilly Virchow Krause, LLP

Baker Tilly Virchow Krause, LLP

York, Pennsylvania

March 7, 2017

EX-31.1

EXHIBIT 31.1

CERTIFICATIONS

I, Jeffrey R. Hines, certify that:
1.	I have reviewed this report on Form 10-K of The York Water Company;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,  to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and
5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  March 6, 2017	/s/Jeffrey R. Hines
	Jeffrey R. Hines
	President and CEO

EX-31.2

EXHIBIT 31.2

CERTIFICATIONS

I, Kathleen M. Miller, certify that:
1.	I have reviewed this report on Form 10-K of The York Water Company;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,  to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and
5.	The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent function):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  March 6, 2017	/s/Kathleen M. Miller
	Kathleen M. Miller
	Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of The York Water Company on Form 10-K for the period ending December 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Jeffrey R. Hines, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)	The Report fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	THE YORK WATER COMPANY
	/s/Jeffrey R. Hines
	Jeffrey R. Hines
	Chief Executive Officer
Date: March 6, 2017

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of The York Water Company on Form 10-K for the period ending December 31, 2016 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Kathleen M. Miller, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1)	The Report fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934; and
(2)	The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	THE YORK WATER COMPANY
	/s/Kathleen M. Miller
	Kathleen M. Miller
	Chief Financial Officer
Date: March 6, 2017

EX-10.21

EXHIBIT 10.21

December 15, 1980

Amended January 12, 1981

Amended August 12, 1982

Amended November 28, 1988

Amended December 23, 1996

Amended May 27, 1997

 Amended October 1, 2013

     Amended February 6, 2017

THE YORK WATER COMPANY EMPLOYEES' STOCK PURCHASE PLAN

1. PURPOSE OF THE PLAN

The purpose of the Employees' Stock Purchase Plan (the "Plan") is to provide an opportunity for eligible employees of The York Water Company (the "Company") to obtain an ownership interest in the Company through purchases of common stock by payroll deductions. It is the intention of the Company that the Plan qualify as an "Employee Stock Purchase Plan" under Section 423 of the Internal Revenue Code of 1986, as amended (the "Code") and the Plan shall be administered in accordance with this intent. The Plan is effective as of its approval by the Board of Directors of the Company (the "Board") on September 30, 2013 (the "Effective Date"), subject to the approval of the shareholders of the Company within 12 months of the Effective Date.

Pursuant to the Plan, 350,000 shares of the Company's Common Stock, no par value, are reserved for issuance thereunder (subject to adjustment upon changes in capitalization of the Company as provided in Section 20 hereof).

2. TERM OF THE PLAN

The operation of this Plan shall commence on the Effective Date and shall be automatically renewed from year to year unless terminated by action of the Board, provided that the Plan shall terminate automatically if it is not approved by shareholders within 12 months of the Effective Date. If less than five employees elect to participate or the participation drops to less than five employees, the Plan may be terminated.

3. CUSTODIAN

The Company shall be the Custodian for the Plan, unless the Company shall in its discretion select a bank or other similar type institution or organization to be the Custodian. The duties of the Custodian shall be performed in a reasonable manner, but the Custodian shall not be personally responsible for any errors in judgment or performance which are not the result of willful misconduct or gross negligence.

4. ADMINISTRATION OF THE PLAN

Except to the extent that responsibilities may be delegated to and assumed by a Custodian other than the Company, the Board of the Company shall appoint an administrator (the "Administrator") annually to oversee the Plan's operation. The Administrator's term shall be one year, to be renewed at the discretion of the Board. The Board may remove the Administrator during his or her term, if appropriate. The Board appointed the Human Resources Director to this position. The Administrator's address is:

Human Resources Director

The York Water Company

130 East Market Street

York, Pennsylvania 17401-1219

Phone: 717-845-3601

The Company's Human Resources Director shall receive no additional compensation for serving as Administrator of the Plan.

5. ELIGIBILITY REQUIREMENTS

Any full-time employee who has been a full-time employee continuously for ninety days shall be eligible to participate in the Plan. An eligible employee may join the Plan at any time, provided that the employee has submitted to the Administrator of the Plan a properly completed and executed Stock Purchase and Payroll Deduction Agreement (the "Purchase Agreement").

Notwithstanding any provisions of the Plan to the contrary, no employee may participate in the Plan if such employee (or any other person whose stock would be attributed to such employee pursuant to Section 424(d) of the Code) owns capital stock of the Company and/or holds outstanding options to purchase such stock possessing five percent (5%) or more of the total combined voting power or value of all classes of the capital stock of the Company or of any parent or subsidiary corporation.

All employees who participate in the Plan shall have the same rights and privileges under the Plan, except for differences that may be mandated by local law and that are consistent with Section 423(b)(5) of the Code.

6. OFFERING PERIODS

The Plan shall be implemented by consecutive three month offering periods commencing on the first day of a calendar quarter and ending on the last day of a calendar quarter (an "Offering Period"), provided that the Board may, in its sole discretion, extend or shorten any Offering Period.

7. STOCK PURCHASE AND PAYROLL DEDUCTION AGREEMENT

Each eligible employee wishing to purchase common stock of the Company pursuant to the Plan shall complete and execute a Purchase Agreement.

An eligible employee may specify as the dollar deduction from his or her gross compensation any dollar amount up to 10% of the periodic straight time earnings or gross salary during the Offering Period, such dollar amount to be deducted from each salary check as designated by the employee; provided, however, that each payroll deduction shall be a whole dollar amount, and further provided that the minimum amount that may be deducted is $2. Any employee participating in the Plan may increase or decrease the dollar amount to be deducted from his or her compensation at any time during an Offering Period by submitting a revised Purchase Agreement. Purchase Agreement forms may be obtained from the Administrator of the Plan.

8. PAYROLL DEDUCTIONS

In accordance with each participating employee's Purchase Agreement, payroll deductions shall be made from each of the employee's paychecks commencing with the first pay during an Offering Period after submission of a Purchase Agreement to the Plan Administrator.

The Company shall remit the amounts deducted from the paychecks issued to an interest bearing savings account within 10 days after the pay date.

9. ADDITIONAL CONTRIBUTIONS

An employee participating in the Plan may make an additional lump sum contribution, provided that the total contributions by payroll deduction and lump sum cannot exceed 10% of straight time earnings or gross salary for any annual period.

10. STOCK PURCHASE ACCOUNTS

The Administrator shall establish and maintain a stock purchase account in the name of each participating employee. Each amount deducted from a participant's paycheck shall be credited to such participant's stock purchase account. The effective date of each credit to any participant's account shall be the date on which the participant is issued his or her paycheck from which the deduction is made, without regard to the date on which the check is actually received. Interest will be paid on any amounts in any stock purchase accounts at the then current rate paid by the institution holding the account. The interest will be prorated to each participant's account as of the first of each calendar quarter. At the end of each Offering Period that the Plan is in effect, the Company shall prepare and transmit to the Administrator the aggregate amount in each individual account. No fees, commissions or other charges shall be deducted from the participants' accounts.

11. GRANT OF OPTION

On the last day of an Offering Period (the "Grant Date"), each employee participating in the Plan during such Offering Period shall be granted an option to purchase on the Exercise Date (as defined in Section 12), at the applicable Purchase Price (as defined in Section 13) a number of shares of Company common stock determined by dividing the amount credited to such participant's stock purchase account on such Grant Date by the applicable Purchase Price.

Notwithstanding the foregoing, (i) no option shall be granted to a participant that entitles the participant to purchase a number of shares of Company common stock that is greater than $25,000 divided by the closing price of a share of Company common stock on the Grant Date, and (ii) no participant may accrue the right to purchase Company common stock (under this Plan and any other employee stock purchase plan of the Company and any parent or subsidiary corporation) at a rate that exceeds $25,000 of the fair market value of such stock (determined as of the applicable Grant Date) during any calendar year.

12. EXERCISE OF OPTION

The option granted to a participant pursuant to Section 11 above shall be exercised automatically on the Exercise Date. The Exercise Date shall be the sixteenth day of the month immediately following the Grant Date (provided that if such day is not a business day, the Exercise Date shall be the first business day immediately following such day). Immediately following the Exercise Date, the funds credited to a participant's stock purchase account will be used by the Administrator to purchase from the Company the stock subject to the option and each participant will have allocated to his or her account the number of shares of Company common stock purchased pursuant to the option. The participant's account will be debited for the price of said shares. Any monies left over in a participant's account after the Exercise Date due to the application of the limits set forth in Section 11 above shall be returned to the participant.

Shares which have been allocated to the account of a participating employee shall remain in the custody of the Company or its agent, as Custodian, unless otherwise directed as provided in Section 14.

All dividends and other distributions and all voting rights with respect to shares which have been allocated to the account of a participant but not yet distributed to the participant shall belong to and be vested in such participant, except that, at the written request of the participant, such dividends, distributions and voting rights may belong to and be vested in him or her jointly with another person or persons, or in the name or names of any other person or persons, jointly or severally.

13. DETERMINATION OF PURCHASE PRICE

The Purchase Price will be ninety-five percent (95%) of the fair market value of a share of Company common stock on the Grant Date. Such fair market value will equal the mean between the high and the low prices for the Company's common shares as quoted on Nasdaq on such date. If such price is not available, the Purchase Price will be determined by the Board based on the latest available market quotations or on such other basis as the Board shall deem lawful and appropriate.

14. DISTRIBUTION OF SHARES

Upon written request to the Administrator, a certificate for shares shall be issued and delivered to the employee as soon as practicable. Such shares shall be registered in the name of the participating employee except that, at the written request of the employee, they may be registered jointly in his or her name and the name of another person or persons or in the name or names of any other person or persons, jointly or severally. However, all shares allocated to the participating employee must be registered in one stock account only and may not be divided into more than one stock account.

15. WITHDRAWAL FROM THE PLAN

Any participating employee who, for any reason, ceases to be a full-time employee of the Company shall be deemed to have withdrawn from the Plan on the date employment ceases. Upon a participant's ceasing to be an employee, the payroll deductions credited to such participant's account during the Offering Period but not yet used to exercise the option shall be returned to such participant or, in the case of his or her death, to such participant's beneficiaries, and any unexercised option held by such participant shall be automatically terminated.

In addition, any other participating employee may voluntarily withdraw from the Plan at any time by written termination of the Purchase Agreement. The participant will receive an option on the next Grant Date, as set forth above, relating to payroll deductions and unallocated interest until the time of withdrawal, and such option will be exercised on the next Exercise Date and any remaining amount in the participant's account shall be returned to such participant.

Upon withdrawal from the Plan, an employee, subject to any allocation of shares to his or her nominee or nominees (as referred to in Sections 11 and 14 hereof), shall be entitled to receive any shares held by the Company or its agent, as Custodian, which have been allocated or credited to the employee's account.

16. EXPENSES

The charges of a Custodian other than the Company and all costs of maintaining records and executing transfers will be borne by the Company.

17. STATEMENT OF ACCOUNT

As soon as practicable after the each Grant Date, the Company or its agent, as Custodian, shall distribute to each participating employee, a quarterly statement of his or her account. The statement shall set forth as of the last day of each Offering Period during the year (i) the total number of shares allocated to the participating employee's account which is in the custody of the Custodian; (ii) the amount in the account at the beginning of the quarter and the amount of participant contributions for the quarter; (iii) dividend and interest income allocated to said participant's account; (iv) the amount debited to the account for the purchase of shares, the number of shares purchased for the account for the quarter and the purchase price; and (v) all other pertinent data relating to such account.

18. GOVERNMENT REGULATIONS

The Plan and the transactions with respect to the Company's common stock pursuant thereto are subject to all applicable rules and regulations of state and federal law as may from time to time be effective and to such approval of governmental agencies as may be required.

19. TERMINATION OR AMENDMENT OF THE PLAN

The Company may terminate or amend the Plan effective as of the first day of any quarter provided that no such termination or amendment shall impair the rights of any participating employee under the Plan, or nominee or nominees of such employee, to receive any shares which have been allocated or credited to or for his or her account, and each such employee shall receive the amount of any payroll deductions and any prorated interest or dividends which should properly be credited to his or her account but which have not been applied to the purchase of shares. Upon termination of the Plan, in the event of any cash or shares remaining in the possession of the Custodian after satisfaction of all of the rights of participating employees, the same shall belong to the Company.

20. CHANGES IN CAPITALIZATION

Subject to any required action by the stockholders of the Company, the number of shares reserved for issuance under the Plan, as well as the price per share and the number of shares of Company common stock covered by each option under the Plan which have not yet been exercised, shall be proportionately adjusted for any increase or decrease in the number of issued shares of Company common stock resulting from a stock split, reverse stock split, stock dividend, extraordinary cash dividend, combination or reclassification of Company common stock, or any other increase or decrease in the number of shares of Company common stock effected without receipt of consideration by the Company. Such adjustment shall be made by the Board, whose determination in that respect shall be final, binding and conclusive.

21. TRANSFERABILITY

Neither payroll deductions credited to a participant's account nor any rights with regard to the exercise of an option or to receive shares under the Plan may be assigned, transferred, pledged or otherwise disposed of in any way (other than by will, the laws of descent and distribution) by the participant. Any such attempt at assignment, transfer, pledge or other disposition shall be without effect

22. MISCELLANEOUS

A participant shall not be deemed to be the holder of, or to have any of the rights of a holder with respect to, shares of Company common stock subject to an option unless and until the participant's shares of Company common stock acquired upon exercise of an option are recorded in the books of the Company (or its transfer agent).

The Plan does not constitute an employment contract. Nothing in the Plan or in the Offering shall in any way alter the at will nature of a participant's employment or be deemed to create in any way whatsoever any obligation on the part of any participant to continue in the employ of the Company, or on the part of the Company to continue the employment of a participant.

The provisions of the Plan shall be governed by the laws of the Commonwealth of Pennsylvania without resort to that state's conflicts of laws rules.

23. TAX INFORMATION

In General: The Plan is intended to qualify as an "employee stock purchase plan" within the meaning of Section 423 of the Internal Revenue Code of 1986, as amended (the "Code"), but is not intended to constitute a qualified pension, profit-sharing or stock bonus plan under Section 401(a) of the Code. The principal federal income tax consequences of the Plan under the Code as currently in effect are outlined below. It is advisable for participating employees to obtain competent professional advice regarding the precise tax consequences of participation in the Plan.

Taxation on Sale of Stock: A participating employee will not recognize income on the grant of the option or on the exercise of the option. A participant's taxation with respect to the shares purchased pursuant to the option will depend on how long the participant holds the shares. If the participant holds the shares of stock until the later of two years from the Grant Date or one year from the Exercise Date (or in the event of the participant's death), the participant will be required to recognize ordinary income upon disposition equal to the lesser of (i) the excess of the fair market value of the stock on the Grant Date over the Purchase Price and (ii) the excess of the fair market value of the stock on the date of disposition of the stock over the Purchase Price. Any additional gain or loss will be short-term or long-term capital gain or loss, as applicable.

If the participant does not hold the shares of stock for the holding period described above, the participant will be taxed upon disposition on the excess of the fair market value of a share of stock on the Exercise Date over the Purchase Price, at ordinary income rates, and the participant will be taxed on any additional realized gain at long-term or short-term capital gains rates, as applicable.

Earnings on Stock Purchase Account: The participating employee must report the amount of earnings credited to his or her stock purchase account as taxable income in the year in which that interest is accrued. The Company will report to each participant the amount of interest earned yearly on an IRS Form 1099, when required, and may require certain other information from each participant to insure that there need be no federal income tax withholding on the interest earned.

The York Water Company Employees' Stock Purchase Plan

Stock Purchase and Payroll Deduction Agreement

1. Payroll Deduction and Purchase of Stock.

I authorize The York Water Company to change my withheld contribution for my plan account as follows:

From:$__________Weekly AmountTo:$__________Weekly Amount

Each such dollar amount shall be deducted from my paycheck; provided, however, that each payroll deduction shall be a whole dollar amount, and further provided that the minimum amount that may be deducted is $2.00 and the maximum amount is less than or equal to 10% of my regular straight time gross salary, subject to the limits set forth in the Plan. Such payroll deductions shall continue to be made until I execute a revised Purchase Agreement, I withdraw from the Plan or the Plan terminates. Each payroll deduction shall be credited to my stock purchase account and shall be used to purchase common stock from The York Water Company pursuant to the The York Water Company Employees' Stock Purchase Plan.

2. Ownership of Stock.

All dividends and other distributions and all voting rights with respect to shares which have been allocated to my account but not yet distributed to me or to my nominee or nominees shall belong to and be vested in me or my nominee or nominees, and upon distribution such shares shall be registered accordingly. At my written request, such dividends, distributions and voting rights may belong to and be vested in me jointly with another person or persons or in the name or names of any other person or persons, jointly or severally, and such shares shall then be registered accordingly.

3. Rights Under The Plan.

I acknowledge receipt of a copy of the Description relating to the Plan October 1, 2013. The rights under this Purchase Agreement shall be governed by The York Water Company Employees' Stock Purchase Plan as set forth in full in the Description.

4. Original Designation.

I hereby designate the following as the name / names in which all shares due me under the provisions of this Plan shall be registered, and such designation shall remain in full force and effect until changed by me in writing (only one such designation may be made):

(Exact name/names)

Social Security Number

Address

 Effective Date

		By
Employee's Signature	Date		Administrator	Date

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Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Mar. 07, 2017	Jun. 30, 2016
Document and Entity Information [Abstract]
Entity Registrant Name	YORK WATER CO
Entity Central Index Key	0000108985
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 412,282,264
Entity Common Stock, Shares Outstanding		12,857,199
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016

XML

Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
ASSETS
UTILITY PLANT, at original cost	$ 343,412	$ 329,415
Plant acquisition adjustments	(3,667)	(3,724)
Accumulated depreciation	(68,838)	(64,271)
Net utility plant	270,907	261,420
OTHER PHYSICAL PROPERTY, net of accumulated depreciation of $353 in 2016 and $329 in 2015	745	769
CURRENT ASSETS:
Cash and cash equivalents	4,209	2,879
Accounts receivable, net of reserves of $305 in 2016 and $315 in 2015	4,296	3,535
Unbilled revenues	2,429	2,614
Recoverable income taxes	282	1,049
Materials and supplies inventories, at cost	746	771
Prepaid expenses	658	729
Total current assets	12,620	11,577
OTHER LONG-TERM ASSETS:
Notes receivable	255	255
Deferred regulatory assets	33,027	32,996
Other assets	2,940	3,516
Total other long-term assets	36,222	36,767
Total Assets	320,494	310,533
COMMON STOCKHOLDERS' EQUITY:
Common stock, no par value, authorized 46,500,000 shares, issued and outstanding 12,852,295 shares in 2016 and 12,812,377 shares in 2015	78,513	77,317
Retained earnings	35,548	31,753
Total common stockholders' equity	114,061	109,070
PREFERRED STOCK, authorized 500,000 shares, no shares issued	0	0
LONG-TERM DEBT, excluding current portion	84,609	84,518
COMMITMENTS
CURRENT LIABILITIES:
Current portion of long-term debt	44	44
Accounts payable	3,669	1,772
Dividends payable	1,803	1,708
Accrued compensation and benefits	1,233	1,174
Accrued interest	921	976
Other accrued expenses	514	523
Total current liabilities	8,184	6,197
DEFERRED CREDITS:
Customers' advances for construction	7,102	7,500
Deferred income taxes	54,169	50,280
Deferred employee benefits	8,990	11,079
Other deferred credits	6,725	6,959
Total deferred credits	76,986	75,818
Contributions in aid of construction	36,654	34,930
Total Stockholders' Equity and Liabilities	$ 320,494	$ 310,533

XML

Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
ASSETS
Other physical property, accumulated depreciation	$ 353	$ 329
CURRENT ASSETS:
Accounts receivables, reserves	$ 305	$ 315
COMMON STOCKHOLDERS' EQUITY:
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, authorized (in shares)	46,500,000	46,500,000
Common stock, issued (in shares)	12,852,295	12,812,377
Common stock, outstanding (in shares)	12,852,295	12,812,377
Preferred stock, authorized (in shares)	500,000	500,000
Preferred stock, issued (in shares)	0	0

XML

Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
OPERATING REVENUES:
Residential	$ 30,142	$ 29,682	$ 29,079
Commercial and industrial	13,760	13,822	13,267
Other	3,682	3,585	3,554
Operating revenues	47,584	47,089	45,900
OPERATING EXPENSES:
Operation and maintenance	8,031	8,066	7,968
Administrative and general	9,129	9,082	8,812
Depreciation and amortization	6,422	6,151	5,932
Taxes other than income taxes	1,114	1,129	1,111
Operating expenses	24,696	24,428	23,823
Operating income	22,888	22,661	22,077
OTHER INCOME (EXPENSES):
Interest on debt	(5,265)	(5,182)	(5,206)
Allowance for funds used during construction	228	206	210
Gain on sale of land	36	0	316
Other income (expenses), net	(632)	(456)	(1,036)
Other income (expenses)	(5,633)	(5,432)	(5,716)
Income before income taxes	17,255	17,229	16,361
Income taxes	5,409	4,740	4,877
Net Income	$ 11,846	$ 12,489	$ 11,484
Basic Earnings Per Share (in dollars per share)	$ 0.92	$ 0.97	$ 0.89
Diluted Earnings Per Share (in dollars per share)	0.92	0.97	0.89
Cash Dividends Declared Per Share (in shares)	$ 0.6267	$ 0.6040	$ 0.5788

XML

Statements of Common Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Retained Earnings [Member]	Total
Balance at Dec. 31, 2013	$ 80,545	$ 22,966	$ 103,511
Balance (in shares) at Dec. 31, 2013	12,979,281
Net income	$ 0	11,484	11,484
Dividends	0	(7,443)	(7,443)
Retirement of common stock	$ (5,692)	0	$ (5,692)
Retirement of common stock (in shares)	(282,570)		(282,570)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans	$ 2,703	0	$ 2,703
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans (in shares)	133,810
Balance at Dec. 31, 2014	$ 77,556	27,007	104,563
Balance (in shares) at Dec. 31, 2014	12,830,521
Net income	$ 0	12,489	12,489
Dividends	0	(7,743)	(7,743)
Retirement of common stock	$ (2,546)	0	$ (2,546)
Retirement of common stock (in shares)	(121,012)		(121,012)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans	$ 2,307	0	$ 2,307
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans (in shares)	102,868
Balance at Dec. 31, 2015	$ 77,317	31,753	$ 109,070
Balance (in shares) at Dec. 31, 2015	12,812,377		12,812,377
Net income	$ 0	11,846	$ 11,846
Dividends	0	(8,051)	(8,051)
Retirement of common stock	$ (1,339)	0	$ (1,339)
Retirement of common stock (in shares)	(46,771)		(46,771)
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans	$ 2,513	0	$ 2,513
Issuance of common stock under dividend reinvestment, direct stock and employee stock purchase plans (in shares)	85,458
Stock-based compensation	$ 22	0	22
Stock-based compensation (in shares)	1,231
Balance at Dec. 31, 2016	$ 78,513	$ 35,548	$ 114,061
Balance (in shares) at Dec. 31, 2016	12,852,295		12,852,295

XML

Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 11,846	$ 12,489	$ 11,484
Adjustments to reconcile net income to net cash provided by operating activities:
Gain on sale of land	(36)	0	(316)
Depreciation and amortization	6,422	6,151	5,932
Stock-based compensation	22	0	0
Increase in deferred income taxes	1,646	2,270	4,753
Other	331	317	319
Changes in assets and liabilities:
Increase in accounts receivable and unbilled revenues	(867)	(73)	(632)
(Increase) decrease in recoverable income taxes	767	(92)	(957)
Increase in materials and supplies, prepaid expenses, regulatory and other assets	(3,098)	(3,310)	(10,719)
Increase in accounts payable, accrued compensation and benefits, accrued expenses, deferred employee benefits, and other deferred credits	2,387	3,009	10,663
Decrease in accrued interest and taxes	(55)	(51)	(1,761)
Net cash provided by operating activities	19,365	20,710	18,766
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, including debt portion of allowance for funds used during construction of $127 in 2016, $115 in 2015 and $117 in 2014	(13,158)	(13,844)	(14,139)
Acquisitions of water and wastewater systems	(50)	(352)	(369)
Proceeds from sale of land	40	0	346
Decrease in notes receivable	0	11	40
Cash received from surrender of life insurance policies	642	0	0
Net cash used in investing activities	(12,526)	(14,185)	(14,122)
CASH FLOWS FROM FINANCING ACTIVITIES:
Customers' advances for construction and contributions in aid of construction	1,769	1,117	638
Repayments of customer advances	(443)	(447)	(419)
Proceeds of long-term debt issues	0	14,301	14,880
Debt issuance costs	0	(298)	(506)
Repayments of long-term debt	(53)	(11,886)	(14,923)
Repurchase of common stock	(1,339)	(2,546)	(5,692)
Issuance of common stock	2,513	2,307	2,703
Dividends paid	(7,956)	(7,682)	(7,402)
Net cash used in financing activities	(5,509)	(5,134)	(10,721)
Net change in cash and cash equivalents	1,330	1,391	(6,077)
Cash and cash equivalents at beginning of period	2,879	1,488	7,565
Cash and cash equivalents at end of period	4,209	2,879	1,488
Cash paid during the period for:
Interest, net of amounts capitalized	5,051	4,985	5,007
Income taxes	$ 2,509	$ 2,155	$ 2,808
Supplemental schedule of non-cash investing and financing activities:
Accounts payable includes $2,766 in 2016, $720 in 2015 and $833 in 2014 for the construction of utility plant.

XML

Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CASH FLOWS FROM INVESTING ACTIVITIES:
Utility plant additions, debt portion of allowance for funds used during construction	$ 127	$ 115	$ 117
Supplemental schedule of non-cash investing and financing activities:
Accounts payable, construction of utility plant	$ 2,766	$ 720	$ 833

XML

Significant Accounting Policies

12 Months Ended

Dec. 31, 2016

Significant Accounting Policies [Abstract]

Significant Accounting Policies

1. Significant Accounting Policies

The primary business of The York Water Company, or Company, is to impound, purify and distribute water.  The Company also operates two wastewater collection and treatment systems.  The Company operates within its franchised territory located in York and Adams Counties, Pennsylvania, and is subject to regulation by the Pennsylvania Public Utility Commission, or PPUC.

The following summarizes the significant accounting policies employed by The York Water Company.

Utility Plant and Depreciation

The cost of additions includes contracted cost, direct labor and fringe benefits, materials, overhead and, for certain utility plant, allowance for funds used during construction.  In accordance with regulatory accounting requirements, water and wastewater systems acquired are recorded at estimated original cost of utility plant when first devoted to utility service and the applicable depreciation is recorded to accumulated depreciation.  The difference between the estimated original cost less applicable accumulated depreciation, and the purchase price and acquisition costs is recorded as an acquisition adjustment within utility plant as permitted by the PPUC.  At December 31, 2016 and 2015, utility plant includes a net credit acquisition adjustment of $3,667 and $3,724, respectively.  For those amounts approved by the PPUC, the net acquisition adjustment is being amortized over the remaining life of the respective assets. Certain amounts are still awaiting approval from the PPUC before amortization will commence.  Amortization amounted to $58 in 2016, $58 in 2015, and $54 in 2014.

Upon normal retirement of depreciable property, the estimated or actual cost of the asset is credited to the utility plant account, and such amounts, together with the cost of removal less salvage value, are charged to the reserve for depreciation.  To the extent the Company recovers cost of removal or other retirement costs through rates after the retirement costs are incurred, a regulatory asset is reported.  Gains or losses from abnormal retirements are reflected in income currently.

The straight-line remaining life method is used to compute depreciation on utility plant cost, exclusive of land and land rights.  Annual provisions for depreciation of transportation and mechanical equipment included in utility plant are computed on a straight-line basis over the estimated service lives.  Such provisions are charged to clearing accounts and apportioned therefrom to operating expenses and other accounts in accordance with the Uniform System of Accounts as prescribed by the PPUC.

The Company charges to maintenance expense the cost of repairs and replacements and renewals of minor items of property.  Maintenance of transportation equipment is charged to clearing accounts and apportioned therefrom in a manner similar to depreciation.  The cost of replacements, renewals and betterments of units of property is capitalized to the utility plant accounts.

The following remaining lives are used for financial reporting purposes:

	December 31,				Approximate range
Utility Plant Asset Category	2016		2015		of remaining lives
Mains and accessories	$	176,068	$	170,991	10 – 83 years
Services, meters and hydrants		68,510		66,267	19 – 54 years
Operations structures, reservoirs and water tanks		46,494		44,739	11 – 37 years
Pumping and treatment equipment		29,459		27,664	2 – 33 years
Office, transportation and operating equipment		12,360		11,725	3 – 20 years
Land and other non-depreciable assets		3,172		3,172		-
Utility plant in service		336,063		324,558
Construction work in progress		7,349		4,857		-
Total Utility Plant	$	343,412	$	329,415

The effective rate of depreciation was 2.25% in 2016, 2.24% in 2015, and 2.26% in 2014 on average utility plant, net of customers' advances and contributions. Larger depreciation provisions resulting from allowable accelerated methods are deducted for tax purposes.

Cash and Cash Equivalents

For the purposes of the statements of cash flows, the Company considers all highly liquid debt instruments purchased with an original  maturity of three months or less to be cash equivalents except for those instruments earmarked to fund construction expenditures or repay long-term debt.

The Company periodically maintains cash balances in major financial institutions in excess of the federally insured limit by the Federal Deposit Insurance Corporation (FDIC).  The Company has not experienced any losses and believes it is not exposed to any significant credit risk on cash and cash equivalents.

Accounts Receivable

Accounts receivable are stated at outstanding balances, less a reserve for doubtful accounts.  The reserve for doubtful accounts is established through provisions charged against income.  Accounts deemed to be uncollectible are charged against the reserve and subsequent recoveries, if any, are credited to the reserve.  The reserve for doubtful accounts is maintained at a level considered adequate to provide for losses that can be reasonably anticipated.  Management's periodic evaluation of the adequacy of the reserve is based on past experience, agings of the receivables, adverse situations that may affect a customer's ability to pay, current economic conditions, and other relevant factors.  This evaluation is inherently subjective.  Unpaid balances remaining after the stated payment terms are considered past due.

Revenue Recognition

Operating revenues include amounts billed to water customers on a cycle basis and unbilled amounts based on actual and estimated usage from the latest meter reading to the end of the accounting period.  Operating revenues also include amounts billed to wastewater customers as either a flat monthly fee or a metered rate based on water consumption.  The metered wastewater revenue includes actual and estimated usage from the latest meter reading to the end of the accounting period.

Materials and Supplies Inventories

Materials and supplies inventories are stated at cost.  Costs are determined using the average cost method.

Notes Receivable

Notes receivable are recorded at cost and represent amounts due from various municipalities for construction of water mains in their particular municipality.  Management, considering current information and events regarding the borrowers' ability to repay their obligations, considers a note to be impaired when it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the note agreement.  When a note is considered to be impaired, the carrying value of the note is written down.  The amount of the impairment is measured based on the present value of expected future cash flows discounted at the note's effective interest rate.

Regulatory Assets and Liabilities

The Company is subject to the provisions of generally accepted accounting principles regarding rate-regulated entities.  The accounting standards provide for the recognition of regulatory assets and liabilities as allowed by regulators for costs or credits that are reflected in current customer rates or are considered probable of being included in future rates.  The regulatory assets or liabilities are then relieved as the cost or credit is reflected in rates.  Regulatory assets represent costs that are expected to be fully recovered from customers in future rates while regulatory liabilities represent amounts that are expected to be refunded to customers in future rates.  These deferred costs have been excluded from the Company’s rate base and, therefore, no return is being earned on the unamortized balances.

Regulatory assets and liabilities are comprised of the following:

	December 31,				Remaining
	2016		2015		Recovery Periods
Assets
Income taxes	$	20,609	$	18,389	Various
Postretirement benefits		7,471		9,819	5 – 10 years
Unrealized swap losses		2,264		2,481	1 – 13 years
Utility plant retirement costs		2,679		2,247	5 years
Service life study expenses		4		3	1 years
Rate case filing expenses		-		57
		33,027		32,996
Liabilities
IRS TPR catch-up deduction		3,887		3,887	Not yet known
Income taxes		753		776	1 – 50 years
	$	4,640	$	4,663

The regulatory asset for income taxes includes (a) deferred state income taxes related primarily to differences between book and tax depreciation expense, (b) deferred income taxes related to the differences that arise between specific asset improvement costs capitalized for book purposes and deducted as a repair expense for tax purposes, and (c) deferred income taxes associated with the gross-up of revenues related to the differences.  These assets are recognized for ratemaking purposes on a cash or flow-through basis and will be recovered in rates as they reverse.

Postretirement benefits include the difference between contributions and deferred pension expense and the underfunded status of the pension plans.  The underfunded status represents the difference between the projected benefit obligation and the fair market value of the assets.  This asset is expected to be recovered in future years as additional contributions are made or market conditions accelerate.  The recovery period is dependent on contributions made to the plans, plan asset performance and the discount rate used to value the obligations.  The period is estimated at between 5 and 10 years.

The Company uses regulatory accounting treatment to defer the mark-to-market unrealized gains and losses on its interest rate swap to reflect that the gain or loss is included in the ratemaking formula when the transaction actually settles.  The value of the swap as of the balance sheet date is recorded as part of other deferred credits.  Realized gains or losses on the swap will be recorded as interest expense in the statement of income over its remaining life of 13 years.

Utility plant retirement costs represents costs already incurred for the removal of assets, which are expected to be recovered over a five-year period in rates, through depreciation expense.  Service life study expenses are deferred and amortized over their remaining life of one year.  Rate case filing expenses were fully amortized in 2016.

The regulatory liability for the Internal Revenue Service, or IRS, tangible property regulations, or TPR, catch-up deduction represents the tax benefits realized on the Company’s 2014 income tax return for qualifying capital expenditures made prior to 2014.  The Company will seek approval from the PPUC in its next rate filing to amortize the catch-up deduction.

The regulatory liability for income taxes relates mainly to deferred investment tax credits, and additionally to deferred taxes related to postretirement death benefits and bad debts.  These liabilities will be given back to customers in rates as tax deductions occur over the next 1 to 50 years.

Regulatory liabilities are part of other accrued expenses and other deferred credits on the balance sheets.

Other Assets

Other assets consist mainly of the cash value of life insurance policies held as an investment by the Company for reimbursement of costs and benefits associated with its supplemental retirement and deferred compensation programs.

Deferred Debt Expense

Deferred debt expense is amortized on a straight-line basis over the term of the related debt and is presented on the balance sheet as a direct reduction from long-term debt.

Customers' Advances for Construction

Customer advances are cash payments from developers, municipalities, customers or builders for construction of utility plant, and are refundable upon completion of construction, as operating revenues are earned.  If the Company loans funds for construction to the customer, the refund amount is credited to the note receivable rather than paid out in cash.  After all refunds to which the customer is entitled are made, any remaining balance is transferred to contributions in aid of construction.  From 1986 to 1996 when customer advances were taxable income to the Company, additional funds were collected from customers to cover the taxes.  Those funds were recorded as a liability within Customer Advances for Construction and were amortized as deferred income over the tax life of the underlying assets.  These amounts were fully amortized in 2016.

Contributions in Aid of Construction

Contributions in Aid of Construction is composed of (i) direct, non-refundable contributions from developers, customers or builders for construction of water infrastructure and (ii) customer advances that have become non-refundable.  Contributions in aid of construction are deducted from the Company’s rate base, and therefore, no return is earned on property financed with contributions.  The PPUC requires that contributions received remain on the Company’s balance sheets indefinitely as a long-term liability.

Interest Rate Swap Agreement

The Company is exposed to certain risks relating to its ongoing business operations.  The primary risk managed by using derivative instruments is interest rate risk.  The Company utilizes an interest rate swap agreement to convert its variable-rate debt to a fixed rate.  Interest rate swaps are contracts in which a series of interest rate cash flows are exchanged over a prescribed period.  The notional amount on which the interest payments are based is not exchanged.  The Company has designated the interest rate swap agreement as a cash flow hedge, classified as a financial derivative used for non-trading activities.

The accounting standards regarding accounting for derivatives and hedging activities require companies to recognize all derivative instruments as either assets or liabilities at fair value on the balance sheets.  In accordance with the standards, the interest rate swap is recorded on the balance sheets in other deferred credits at fair value.

The Company uses regulatory accounting treatment rather than hedge accounting to defer the unrealized gains and losses on its interest rate swap.  Instead of the effective portion being recorded as other comprehensive income and the ineffective portion being recognized in earnings, the entire unrealized swap value is recorded as a regulatory asset.  Based on current ratemaking treatment, the Company expects the gains and losses to be recognized in rates and in interest expense as the swap settlements occur.  Swap settlements are recorded in the income statement with the hedged item as interest expense.  Swap settlements resulted in the reclassification from regulatory assets to interest expense of $345 in 2016, $366 in 2015, and $368 in 2014.  The overall swap result was a loss of $128 in 2016, $285 in 2015, and $1,318 in 2014.  During the twelve months ending December 31, 2017, the Company expects to reclassify $310 (before tax) from regulatory assets to interest expense.

The interest rate swap will expire on October 1, 2029.

Stock-Based Compensation

The Company records compensation expense in the financial statements for stock-based awards based on the grant date fair value of those awards.  Stock-based compensation expense is recognized over the requisite service periods of the awards on a straight-line basis, which is generally commensurate with the vesting term.  Forfeitures are recognized as they occur.

Income Taxes

Certain income and expense items are accounted for in different time periods for financial reporting than for income tax reporting purposes.

Deferred income taxes are accounted for under the asset and liability method.  Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and tax credit carryforwards.  Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled.  The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.  To the extent such income taxes increase or decrease future rates, an offsetting regulatory asset or liability has been recorded.

Investment tax credits have been deferred and are being amortized to income over the average estimated service lives of the related assets.  As of December 31, 2016 and 2015, deferred investment tax credits amounted to $657 and $696, respectively.

The Company filed for a change in accounting method under the IRS TPR effective in 2014.  Under the change in accounting method, the Company is permitted to deduct the costs of certain asset improvements that were previously being capitalized and depreciated for tax purposes as an expense on its income tax return.  The Company is permitted to make this deduction for prior years (the “catch-up deduction”) and each year going forward, beginning with 2014 (the “ongoing deduction”).  The ongoing deduction results in a reduction in the effective income tax rate, a net reduction in income tax expense, and a reduction in the amount of income taxes currently payable.  The catch-up deduction resulted in a decrease in current income taxes payable and an increase to regulatory liabilities.  The Company will seek approval from the PPUC in its next rate filing to amortize the remaining catch-up deduction recorded as a regulatory liability.  Both the ongoing and catch-up deductions resulted in increases to deferred tax liabilities and regulatory assets representing the appropriate book and tax basis difference on capital additions.

Allowance for Funds Used During Construction

Allowance for funds used during construction (AFUDC) represents the estimated cost of funds used for construction purposes during the period of construction.  These costs are reflected as non-cash income during the construction period and as an addition to the cost of plant constructed.  AFUDC includes the net cost of borrowed funds and a rate of return on other funds.  The PPUC approved rate of 10.04% was applied for 2016 and 2014.  The Company applied a blended rate in 2015 due to its partial use of tax-exempt financing for 2015 construction projects.  The tax-exempt borrowing rates of 4.00% - 4.50% were applied to those expenditures so financed, whereas the approved 10.04% rate was applied to the remainder of 2015 expenditures.  AFUDC is recovered through water and wastewater rates as utility plant is depreciated.

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Actual results could differ from those estimates.

Reclassifications

Certain 2015 and 2014 amounts have been reclassified to conform to the 2016 presentation.  Such reclassifications had no effect on net income, the statement of common stockholders’ equity, or the statement of cash flow category reporting.

Impact of Recent Accounting Pronouncements

In August 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-15, Statement of Cash Flows (Topic 320): Classification of Certain Cash Receipts and Cash Payments.  This ASU clarifies how certain cash receipts and payments should be presented in the statement of cash flows.  The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption available.  The Company does not expect the adoption of this standard to have a material impact on its financial position, results of operations and cash flows.

In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.  This ASU involves multiple aspects of the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows.  The ASU is effective for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years, with early adoption available.  The Company adopted this ASU in 2016 upon its first issuance of share-based payments.  The adoption of this ASU did not have any impact on its prior financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which replaces the existing guidance in Accounting Standard Codification 840 – Leases.  This ASU requires a dual approach for lessee accounting under which a lessee would account for leases as finance leases or operating leases.  Both finance leases and operating leases will result in the lessee recognizing a right-of-use asset and a corresponding lease liability.  For finance leases, the lessee would recognize interest expense and amortization of the right-of-use asset, and for operating leases, the lessee would recognize a straight-line total lease expense.  This ASU is effective for fiscal years beginning after December 15, 2018, and for interim periods within those fiscal years.  The Company is currently assessing the impact of the adoption of the standard, but it expects the adoption to have little or no effect on its financial position, results of operations and cash flows.

In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes.  This ASU requires that deferred tax liabilities and assets be classified as noncurrent in a classified statement of financial position.  The current requirement that deferred tax liabilities and assets of a tax-paying component of an entity be offset and presented as a single amount is not affected by the amendments in this update.  This ASU is effective for fiscal years beginning after December 15, 2016, and for interim periods within those fiscal years.  Early adoption is permitted, and the Company adopted this ASU in the first quarter of 2016.  The Company applied the ASU retrospectively and reclassified the current deferred income tax asset of $215 to offset the noncurrent deferred income tax liability on the December 31, 2015 balance sheet.  The adoption did not have a material impact on the results of operations or cash flows of the Company.

In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs.  This ASU clarifies the required presentation of debt issuance costs.  The standard requires that debt issuance costs be presented on the balance sheet as a direct reduction from the carrying amount of the recognized debt liability, consistent with the treatment of debt discounts.  Amortization of debt issuance costs is to be reported as interest expense.  The recognition and measurement guidance for debt issuance costs are not affected by the standard.  This ASU is effective for fiscal years beginning after December 15, 2015, and the Company adopted this ASU in the first quarter of 2016.  The Company applied the ASU retrospectively and reclassified the deferred debt expense asset of $2,743 to offset long-term debt on the December 31, 2015 balance sheet.  The adoption did not have a material impact on the results of operations or cash flows of the Company.

In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties About an Entity’s Ability to Continue as a Going Concern, which provides guidance on determining when and how reporting entities must disclose going-concern uncertainties in their financial statements.  The new standard requires management to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date of issuance of the entity’s financial statements.  Further, an entity must provide certain disclosures if there is substantial doubt about the entity’s ability to continue as a going concern.  The ASU is effective for fiscal years ending on or after December 15, 2016 and interim periods thereafter.  The Company adopted this ASU in 2016.  The Company is complying with these assessments, but the adoption of this ASU did not have any impact on its financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers.  This ASU supersedes the revenue recognition requirements in Accounting Standards Codification 605—Revenue Recognition and most industry-specific guidance throughout the Codification.  The standard requires that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services.  In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, deferring the effective date of this amendment for public companies by one year to fiscal years beginning after December 15, 2017.  Early adoption is permitted for fiscal years beginning after December 15, 2016, the original effective date.  The standard permits the use of either a retrospective or cumulative effect transition method.  The Company has not yet selected a transition method and is in the process of assessing the impact of the adoption of the standard on its financial position, results of operations and cash flows.  Based on its evaluation of ASU 2014-09, the Company currently does not expect it to have a material impact on its results of operations or cash flows in the periods after adoption.  Under ASU 2014-09, revenue is recognized as control transfers to the customer.  As such, revenue for the Company’s contracts is generally from a single performance obligation that will be recognized at a point in time.  This is consistent with the revenue recognition model it currently uses for its contracts.  The Company will complete its assessment of the expected impact of adoption, including selecting a transition method for adoption, in 2017, and continue to evaluate ASU 2014-09 through the date of adoption.

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Acquisitions

12 Months Ended

Dec. 31, 2016

Acquisitions [Abstract]

Acquisitions

2. Acquisitions

On February 7, 2014, the Company completed the acquisition of the wastewater facilities of East Prospect Borough Authority in York County, Pennsylvania. The Company began operating the existing collection and treatment facilities on February 8, 2014. The acquisition resulted in the addition of approximately 400 wastewater customers with purchase price and acquisition costs of approximately $281, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $667 as of December 31, 2014. In 2015, the Company paid additional acquisition costs of approximately $2 resulting in a decrease of the negative acquisition adjustment to $665. The Company will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On May 30, 2014, the Company completed the acquisition of the water assets of Forest Lakes Water Association in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on June 2, 2014. The acquisition resulted in the addition of approximately 70 new water customers with purchase price and acquisition costs of approximately $18, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $9 as of December 31, 2014. In 2015, the Company paid additional acquisition costs of approximately $2 resulting in a decrease of the negative acquisition adjustment to $7. The Company will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On November 20, 2014, the Company completed the acquisition of the water assets of Lincoln Estates Mobile Home Park in Adams County, Pennsylvania. The Company began operating the existing system as a satellite location on November 24, 2014. The acquisition resulted in the addition of approximately 200 new water customers with purchase price and acquisition costs of approximately $70, which is less than the depreciated original cost of the assets. In 2015, the Company recorded a negative acquisition adjustment of approximately $77 and will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On April 9, 2015, the Company completed the acquisition of the water assets of The Meadows community in Adams County, Pennsylvania. The Company began operating the existing system as a satellite location on April 13, 2015. The acquisition resulted in the addition of approximately 90 new water customers with purchase price and acquisition costs of approximately $63, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $159 and will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On April 22, 2015, the Company completed the acquisition of the water assets of the Paradise Homes Community in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on April 27, 2015. The acquisition resulted in the addition of approximately 90 new water customers with purchase price and acquisition costs of approximately $36, which is less than the depreciated original cost of the assets. The Company recorded a negative acquisition adjustment of approximately $28 and will seek approval from the PPUC to amortize the negative acquisition adjustment over the remaining life of the acquired assets.

On October 19, 2015, the Company completed the acquisition of the water assets of the Newberry Farms Mobile Home Park in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on October 22, 2015. The acquisition resulted in the addition of approximately 160 new water customers with purchase price and acquisition costs of approximately $129, of which $13 was paid in 2016, which approximated the depreciated original cost of the assets.  In 2016, the Company recorded an immaterial negative acquisition adjustment and will seek approval from the PPUC to expense the negative acquisition adjustment.

On November 2, 2015, the Company completed the acquisition of the water assets of the Margaretta Mobile Home Park in York County, Pennsylvania. The Company began operating the existing system through an interconnection with its current distribution system on November 3, 2015. The acquisition resulted in the addition of approximately 65 new water customers with purchase price and acquisition costs of approximately $102 after a net transfer of $31 to related construction projects in 2016, which is more than the depreciated original cost of the assets.  In 2016, the Company recorded an acquisition adjustment of approximately $56 and will seek approval from the PPUC to amortize the acquisition adjustment over the remaining life of the acquired assets.

On March 10, 2016, the Company completed the acquisition of the water assets of Crestview Mobile Home Park in York County, Pennsylvania.  The Company began operating the existing system through an interconnection with its current distribution system on March 15, 2016.  The acquisition resulted in the addition of approximately 120 new water customers with purchase price and acquisition costs of approximately $47.  The purchase price and acquisition costs were more than the depreciated original cost of the assets.  The Company recorded an acquisition adjustment of approximately $19 and will seek approval from the PPUC to amortize the acquisition adjustment over the remaining life of the acquired assets.  These customers were previously served by the Company through a single customer connection to the park.

On October 13, 2016, the Company completed the acquisition of the water assets of the Westwood Mobile Home Park in York County, Pennsylvania.  The Company began operating the existing system through an interconnection with its current distribution system on October 17, 2016.  The acquisition resulted in the addition of approximately 200 new water customers with purchase price and acquisition cost of approximately $21, which is less than the depreciated original cost of the assets.  The Company recorded a negative acquisition adjustment of approximately $76 and will seek approval from the PPUC to amortize the acquisition adjustment over the remaining life of the acquired assets.  These customers were previously served by the Company through a single customer connection to the park.

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Income Taxes

12 Months Ended

Dec. 31, 2016

Income Taxes [Abstract]

Income Taxes

3. Income Taxes

The provisions for income taxes consist of:

	2016			2015			2014
Federal current	$	2,681		$	1,873		$	96
State current		1,082			597			28
Federal deferred		1,683			2,131			3,757
State deferred		2			177			1,035
Federal investment tax credit, net of current utilization		(39	)		(38	)		(39	)
Total income taxes	$	5,409		$	4,740		$	4,877

A reconciliation of the statutory Federal tax provision (34%) to the total provision follows:

	2016			2015			2014
Statutory Federal tax provision	$	5,867		$	5,858		$	5,563
State income taxes, net of Federal benefit		715			511			702
IRS TPR ongoing deduction		(962	)		(1,438	)		(1,342	)
Tax-exempt interest		(34	)		(37	)		(37	)
Amortization of investment tax credit		(39	)		(38	)		(39	)
Cash value of life insurance		44			71			15
Domestic production deduction		(194	)		(190	)		-
Other, net		12			3			15
Total income taxes	$	5,409		$	4,740		$	4,877

The Company filed for a change in accounting method under the IRS TPR effective in 2014.  Under the change in accounting method, the Company is permitted to deduct the costs of certain asset improvements that were previously being capitalized and depreciated for tax purposes as an expense on its income tax return.  The Company was permitted to make this deduction for prior years (the “catch-up deduction”) and each year going forward, beginning with 2014 (the “ongoing deduction”).  As a result of the catch-up deduction, income tax benefits of $4,314 were deferred as a regulatory liability as of December 31, 2014.  The catch-up deduction resulted in a decrease in current income taxes payable and an increase to regulatory liabilities during 2014.  In 2015, upon final determination of the TPR amounts for its income tax return, the Company reclassified the portion of TPR related to dispositions to deferred taxes and deferred tax liabilities in compliance with the IRS regulations.  The Company will seek approval from the PPUC in its next rate filing to amortize the remaining catch-up deduction of $3,887 recorded as a regulatory liability.  As a result of the ongoing deduction, the net income tax benefits of $962, $1,438 and $1,342 for the years ended December 31, 2016, 2015 and  2014, respectively, reduced income tax expense and flowed-through to net income.  The ongoing deduction results in a reduction in the effective income tax rate, a net reduction in income tax expense, and a reduction in the amount of income taxes currently payable.  Both the ongoing and catch-up deductions result in increases to deferred tax liabilities and regulatory assets representing the appropriate book and tax basis difference on capital additions.

The tax effects of temporary differences between book and tax balances that give rise to significant portions of the deferred tax assets and deferred tax liabilities as of December 31, 2016 and 2015 are summarized in the following table:

	2016		2015
Deferred tax assets:
Reserve for doubtful accounts	$	124	$	128
Compensated absences		212		221
Deferred compensation		1,581		1,465
Customers' advances and contributions		-		1
Deferred taxes associated with the gross-up of revenues necessary to return, in rates, the effect of temporary differences		124		122
Pensions		2,146		3,099
Contribution carryover		-		147
Other costs deducted for book, not for tax		57		51
Total deferred tax assets		4,244		5,234
Deferred tax liabilities:
Accelerated depreciation		38,063		36,210
Basis differences from IRS TPR		8,339		7,196
Investment tax credit		390		413
Deferred taxes associated with the gross-up of revenues necessary to recover, in rates, the effect of temporary differences		8,183		7,271
Tax effect of pension regulatory asset		3,033		3,986
Other costs deducted for tax, not for book		405		438
Total deferred tax liabilities		58,413		55,514
Net deferred tax liability	$	54,169	$	50,280
In accordance with accounting standards, the net deferred tax liability is classified as a noncurrent deferred income tax liability on the balance sheets.

No valuation allowance was required for deferred tax assets as of December 31, 2016 and 2015.  In assessing the soundness of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized.  The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible.  Management considers the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies in making this assessment.  Based upon expected future taxable income and the current regulatory environment, management believes it is more likely than not that the Company will realize the benefits of these deductible differences.

The Company determined that there were no uncertain tax positions meeting the recognition and measurement test of the accounting standards recorded in the years that remain open for review by taxing authorities, which are 2013 through 2015 for both federal and state income tax returns.  The Company has not yet filed tax returns for 2016, but has not taken any new position in its 2016 income tax provision.

The Company's policy is to recognize interest and penalties related to income tax matters in other expenses.  There were no interest or penalties for the years ended December 31, 2016, 2015, and 2014.

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Long-Term Debt and Short-Term Borrowings

12 Months Ended

Dec. 31, 2016

Long-Term Debt and Short-Term Borrowings [Abstract]

Long-Term Debt and Short-Term Borrowings

4. Long-Term Debt and Short-Term Borrowings

Long-term debt as of December 31, 2016 and 2015 is summarized in the following table:

	2016			2015
10.17% Senior Notes, Series A, due 2019	$	6,000		$	6,000
9.60% Senior Notes, Series B, due 2019		5,000			5,000
1.00% Pennvest Note, due 2019		118			162
10.05% Senior Notes, Series C, due 2020		6,500			6,500
8.43% Senior Notes, Series D, due 2022		7,500			7,500
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds, Series 2008A, due 2029		12,000			12,000
4.75% York County Industrial Development Authority Revenue Bonds, Series 2006, due 2036		10,500			10,500
4.50% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2014, due 2038		14,870			14,880
5.00% Monthly Senior Notes, Series 2010A, due 2040		15,000			15,000
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045		10,000			10,000
Total long-term debt		87,488			87,542
Less discount on issuance of long-term debt		(226	)		(237	)
Less unamortized debt issuance costs		(2,609	)		(2,743	)
Less current maturities		(44	)		(44	)
Long-term portion	$	84,609		$	84,518

Payments due by year as of December 31, 2016:

2017		2018		2019		2020		2021
$	44	$	12,044	$	11,030	$	6,500	$	-

Payments due in 2018 include potential payments of $12,000 on the variable rate bonds (due 2029) which would only be payable if all of the bonds were tendered and could not be remarketed.  There is currently no such indication of this happening.

Fixed Rate Long-Term Debt

On July 23, 2015, the York County Industrial Development Authority (the "YCIDA") issued and sold $10,000 aggregate principal amount of YCIDA Exempt Facilities Revenue Bonds, Series 2015 (the "Series 2015 Bonds") for the Company's benefit pursuant to the terms of a trust indenture, dated as of July 1, 2015, between the YCIDA and Manufacturers and Traders Trust Company, as trustee.  The YCIDA then loaned the proceeds of the sale of the Series 2015 Bonds to the Company pursuant to a loan agreement dated as of July 1, 2015, between the Company and the YCIDA, which matches the debt service requirements on the Bonds.  The Bonds, and therefore the loan, bear interest at rates ranging from 4.00% to 4.50% per annum payable semiannually.  The Bonds have stated maturity dates of June 1 of the years 2029, 2032, 2035, 2038, 2042 and 2045 and are subject to optional and mandatory redemption provisions.  One such provision allows the Company to redeem all or a portion of the bonds on or after June 1, 2025.  Amounts outstanding under the loan agreement are direct, unsecured and unsubordinated obligations of the Company.  The Company received net proceeds, after deducting original issue discount and issuance costs, of approximately $9,500.  The net proceeds were used to redeem the Pennsylvania Economic Development Financing Authority, or PEDFA, Series A 2004 Bonds and to fund a portion of the Company's 2015 capital expenditures.

The PEDFA Series 2014 Bonds contain both optional and special redemption provisions. Under the optional provisions, the Company can redeem all or a portion of the bonds on or after May 1, 2019.  Under the special provisions, representatives of deceased beneficial owners of the bonds have the right to request redemption prior to the stated maturity of all or part of their interest in the bonds beginning on or after May 1, 2014. The Company is not obligated to redeem any individual interest exceeding $25, or aggregate interest exceeding $300, in any annual period.  In 2016, the Company retired $10 of the bonds under these provisions.  In 2015, no bonds were retired under these provisions.  Currently, no additional bonds that meet the special provisions have been tendered for redemption.

Variable Rate Long-Term Debt

On May 7, 2008, the PEDFA issued $12,000 aggregate principal amount of PEDFA Exempt Facilities Revenue Refunding Bonds, Series A of 2008 (the "Series A Bonds") for the Company's benefit pursuant to the terms of a trust indenture, dated as of May 1, 2008, between the PEDFA and Manufacturers and Traders Trust Company, as trustee.  The PEDFA then loaned the proceeds of the offering of the Series A Bonds to the Company pursuant to a loan agreement, dated as of May 1, 2008, between the Company and the PEDFA.  The loan agreement provides for a $12,000 loan with a maturity date of October 1, 2029.  Amounts outstanding under the loan agreement are the Company’s direct general obligations.  The proceeds of the loan were used to redeem the PEDFA Exempt Facilities Revenue Bonds, Series B of 2004 (the “2004 Series B Bonds”).  The 2004 Series B Bonds were redeemed because the bonds were tendered and could not be remarketed due to the downgrade of the bond insurer’s credit rating.

Borrowings under the loan agreement bear interest at a variable rate as determined by PNC Capital Markets, as remarketing agent, on a periodic basis elected by the Company, which has currently elected that the interest rate be determined on a weekly basis.  The remarketing agent determines the interest rate based on the current market conditions in order to determine the lowest interest rate which would cause the Series A Bonds to have a market value equal to the principal amount thereof plus accrued interest thereon.  The variable interest rate under the loan agreement averaged 0.47% in 2016 and 0.06%  in 2015.  As of December 31, 2016 and 2015, the interest rate was 0.80% and 0.02%, respectively.

The holders of the $12,000 Series A Bonds may tender their bonds at any time.  When the bonds are tendered, they are subject to an annual remarketing agreement, pursuant to which a remarketing agent attempts to remarket the tendered bonds according to the terms of the indenture.  In order to keep variable interest rates down and to enhance the marketability of the Series A Bonds, the Company entered into a Reimbursement, Credit and Security Agreement with PNC Bank, National Association (“the Bank”) dated as of May 1, 2008.  This agreement provides for a direct pay letter of credit issued by the Bank to the trustee for the Series A Bonds.  The Bank is responsible for providing the trustee with funds for the timely payment of the principal and interest on the Series A Bonds and for the purchase price of the Series A Bonds that have been tendered or deemed tendered for purchase and have not been remarketed.  The Company’s responsibility is to reimburse the Bank the same day as regular interest payments are made, and within fourteen months for the purchase price of tendered bonds that have not been remarketed.  The reimbursement period for the principal is immediate at maturity, upon default by the Company, or if the Bank does not renew the Letter of Credit.  The current expiration date of the Letter of Credit is June 30, 2018.  It is reviewed annually for a potential extension of the expiration date.

The Company may elect to have the Series A Bonds redeemed, in whole or in part, on any date that interest is payable for a redemption price equal to the principal amount thereof plus accrued interest to the date of redemption.  The Series A Bonds are also subject to mandatory redemption for the same redemption price in the event that the IRS determines that the interest payable on the Series A Bonds is includable in gross income of the holders of the bonds for federal tax purposes.

Interest Rate Swap Agreement

In connection with the issuance of the PEDFA 2004 Series B Bonds, the Company entered into an interest rate swap agreement with a counterparty, in the notional principal amount of $12,000.  The Company elected to retain the swap agreement for the 2008 Series A Bonds.  Interest rate swap agreements derive their value from underlying interest rates.  These transactions involve both credit and market risk.  The notional amounts are amounts on which calculations, payments, and the value of the derivative are based.  Notional amounts do not represent direct credit exposure.  Direct credit exposure is limited to the net difference between the calculated amounts to be received and paid, if any.  Such difference, which represents the fair value of the swap, is reflected on the Company’s balance sheets.  See Note 11 for additional information regarding the fair value of the swap.

The interest rate swap will terminate on the maturity date of the 2008 Series A Bonds (which is the same date as the maturity date of the loan under the loan agreement), unless sooner terminated pursuant to its terms.  In the event the interest rate swap terminates prior to the maturity date of the 2008 Series A Bonds, either the Company or the swap counterparty may be required to make a termination payment to the other based on market conditions at such time.  The Company is exposed to credit-related losses in the event of nonperformance by the counterparty.  The Company controls the credit risk of its financial contracts through credit approvals, limits and monitoring procedures, and does not expect the counterparty to default on its obligations.  Notwithstanding the terms of the swap agreement, the Company is ultimately obligated for all amounts due and payable under the loan agreement.

The interest rate swap agreement contains provisions that require the Company to maintain a credit rating of at least BBB- with Standard & Poor’s.  On March 30, 2016, Standard & Poor’s affirmed the Company’s credit rating at A-, with a stable outlook.  If the Company’s rating were to fall below this rating, it would be in violation of these provisions, and the counterparty to the derivative could request immediate payment if the derivative was in a liability position.  The Company’s interest rate swap was in a liability position as of December 31, 2016.  If a violation was triggered on December 31, 2016, the Company would have been required to pay the counterparty approximately $2,449.

The Company's interest rate swap agreement provides that it pay the counterparty a fixed interest rate of 3.16% on the notional amount of $12,000. In exchange, the counterparty pays the Company a floating interest rate (based on 59% of the U.S. Dollar one-month LIBOR rate) on the notional amount.  The floating interest rate paid to the Company is intended, over the term of the swap, to approximate the variable interest rate on the loan agreement and the interest rate paid to bondholders, thereby managing its exposure to fluctuations in prevailing interest rates.  The Company's net payment rate on the swap averaged 2.86% in 2016 and 3.06% in 2015.

As of December 31, 2016, there was a spread of 39 basis points between the variable rate paid to bondholders and the variable rate received from the swap counterparty, which equated to an overall effective rate of 3.55% (including variable interest and swap payments).  As of December 31, 2015, there was a negative spread of 18 basis points which equated to an overall effective rate of 2.98% (including variable interest and swap payments).

Short-Term Borrowings

As of December 31, 2016, the Company maintained unsecured lines of credit aggregating $41,500 with four banks.  The first line of credit, in the amount of $13,000, is a committed line of credit with a revolving 2-year maturity (currently May 2018), and carries an interest rate of LIBOR plus 1.20%.  The second line of credit, in the amount of $11,000, is a committed line of credit, which matures in May 2018 and carries an interest rate of LIBOR plus 1.25%.  The third line of credit, in the amount of $7,500, is a committed line of credit, which matures in June 2017 and carries an interest rate of LIBOR plus 1.25%.  The fourth line of credit, in the amount of $10,000, is a committed line of credit, which matures in September 2017 and carries an interest rate of LIBOR plus 1.20%.  The Company had no outstanding borrowings under any of its lines of credit as of December 31, 2016 and 2015.

Debt Covenants and Restrictions

The terms of the debt agreements carry certain covenants and limit in some cases the Company's ability to borrow additional funds, to prepay its borrowings and include certain restrictions with respect to declaration and payment of cash dividends and the Company's acquisition of its stock.  Under the terms of the most restrictive agreements, the Company cannot borrow in excess of 60% of its utility plant, and cumulative payments for dividends and acquisition of stock since December 31, 1982 may not exceed $1,500 plus net income since that date.  As of December 31, 2016, none of the earnings retained in the business are restricted under these provisions.  The Company's Pennvest Loan is secured by $800 of receivables.  Other than this loan, the Company's debt is unsecured.

The Company's lines of credit require it to maintain a minimum equity to total capitalization ratio (defined as the sum of equity plus funded debt) and a minimum interest coverage ratio (defined as net income plus interest expense plus income tax expense divided by interest expense).  As of December 31, 2016, the Company was in compliance with these covenants.

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Common Stock and Earnings Per Share

12 Months Ended

Dec. 31, 2016

Common Stock and Earnings Per Share [Abstract]

Common Stock and Earnings Per Share

5. Common Stock and Earnings Per Share

Net income of $11,846 is used to calculate both basic and diluted earnings per share.  Basic net income per share is based on the weighted average number of common shares outstanding.  Diluted net income per share is based on the weighted average number of common shares outstanding plus potentially dilutive shares.  The dilutive effect of employee stock-based compensation is included in the computation of diluted net income per share.  The dilutive effect of stock-based compensation is calculated using the treasury stock method and expected proceeds upon exercise or issuance of the stock-based compensation.  The following table summarizes the shares used in computing basic and diluted net income per share:

	2016		2015		2014
Weighted average common shares, basic		12,845,955		12,831,687		12,879,912
Effect of dilutive securities:
Employee stock-based compensation		18		-		-
Weighted average common shares, diluted		12,845,973		12,831,687		12,879,912

Under the employee stock purchase plan, all full-time employees who have been employed at least ninety consecutive days may purchase shares of the Company's common stock limited to 10% of gross compensation.  The purchase price is 95% of the fair market value (as defined).  Shares issued during 2016, 2015 and 2014 were 5,115, 7,417 and 7,431, respectively.  As of December 31, 2016, 75,596 authorized shares remain unissued under the plan.

The Company has a Dividend Reinvestment and Direct Stock Purchase and Sale Plan (“the Plan”), which is available to both current shareholders and the general public.  On October 3, 2016, the Company filed a Registration Statement on Form S-3 with the SEC to authorize an additional 331,000 shares and rollover the unissued 170,240 shares authorized under the 2013 Form S-3, for issuance under the new Prospectus for the Plan.  In addition to providing more shares for the Plan, the new Prospectus identified a change in the Company’s stock transfer agent.  Under the optional dividend reinvestment portion of the Plan, holders of the Company's common stock may purchase additional shares instead of receiving cash dividends.  The purchase price is 95% of the fair market value (as defined).  Under the direct stock purchase portion of the Plan, purchases were made weekly at 100% of the stock’s fair market value through October 19, 2016.  Beginning in November 2016, purchases are made monthly at 100% of the stock’s fair market value, as defined in the new Prospectus.  Other provisions of the Plan were left substantially unchanged.  The Registration Statement was declared effective by the SEC on November 16, 2016.  Shares issued during 2016, 2015 and 2014 under both Prospectus’ were 80,343, 95,451 and 126,379, respectively.  As of December 31, 2016, 492,639 authorized shares remain unissued under the plan.

On March 11, 2013, the Board of Directors, or the Board, authorized a share repurchase program granting the Company authority to repurchase up to 1,200,000 shares of the Company’s common stock from time to time.  The stock repurchase program has no specific end date and the Company may repurchase shares in the open market or through privately negotiated transactions.  The Company may suspend or discontinue the repurchase program at any time.  During 2016, 2015 and 2014, the Company repurchased and retired 46,771, 121,012 and 282,570 shares, respectively.  As of December 31, 2016, 655,233 shares remain available for repurchase.

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Stock Based Compensation

12 Months Ended

Dec. 31, 2016

Stock Based Compensation [Abstract]

Stock Based Compensation

6. Stock Based Compensation

On May 2, 2016, the Company's stockholders approved The York Water Company Long-Term Incentive Plan, or LTIP.  The LTIP was adopted to provide the incentive of long-term stock-based awards to officers, directors and key employees. The LTIP provides for the granting of nonqualified stock options, incentive stock options, stock appreciation rights, performance restricted stock grants and units, restricted stock grants and units, and unrestricted stock grants.  A maximum of 100,000 shares of common stock may be issued under the LTIP over the ten-year life of the plan.  The maximum number of shares of common stock subject to awards that may be granted to any participant in any one calendar year is 2,000.  Shares of common stock issued under the LTIP may be treasury shares or authorized but unissued shares.  The LTIP is administered by the Compensation Committee of the Board, or the full Board, provided that the full Board administers the LTIP as it relates to awards to non-employee directors of the Company.  The Company filed a registration statement with the Securities and Exchange Commission on May 11, 2016 covering the offering of stock under the LTIP.  The LTIP was effective on July 1, 2016.

On November 21, 2016, the Board awarded stock to non-employee directors effective November 28, 2016.  This stock award vested immediately.  On the same date, the Compensation Committee awarded restricted stock to officers and key employees effective November 28, 2016.  This restricted stock award vests ratably over three years beginning November 28, 2016.

The restricted stock awards provide the grantee with the rights of a shareholder, including the right to receive dividends and to vote such shares, but not the right to sell or otherwise transfer the shares during the restriction period.  As a result, the awards are included in common shares outstanding on the balance sheet.  Restricted stock awards result in compensation expense valued at the fair market value of the stock on the date of the grant and are amortized ratably over the restriction period.

The following tables summarize the stock grant amounts and activity for the year ended December 31, 2016.  No stock awards were granted previously.

	Number of Shares			Grant Date Weighted Average Fair Value
Nonvested at beginning of the year		-			-
Granted		1,231		$	37.20
Vested		(571	)	$	37.20
Forfeited		-			-
Nonvested at end of the year		660		$	37.20

For the year ended December 31, 2016, the statement of income includes $22 of stock-based compensation and related recognized tax benefits of $9.  The total fair value of the shares vested in the year ended December 31, 2016 was $21.  Total stock based compensation related to nonvested awards not yet recognized is $24 which will be recognized over the next three years.

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2016

Employee Benefit Plans [Abstract]

Employee Benefit Plans

7. Employee Benefit Plans

Pensions

The Company maintains a general and administrative and a union-represented defined benefit pension plan covering all of its employees hired prior to May 1, 2010.  Employees hired after May 1, 2010 are eligible for an enhanced 401(k) plan rather than a defined benefit plan.  The benefits under the defined benefit plans are based upon years of service and compensation near retirement.  The Company amended its defined benefit pension plans in 2014, generally limiting the years of eligible service under the plans to 30 years. The Company's funding policy is to contribute annually the amount permitted by the PPUC to be collected from customers in rates, but in no case less than the minimum Employee Retirement Income Security Act (ERISA) required contribution.

The following table sets forth the plans' funded status as of December 31, 2016 and 2015.  The measurement of assets and obligations of the plans is as of December 31, 2016 and 2015.

Obligations and Funded Status At December 31	2016			2015
Change in Benefit Obligation
Pension benefit obligation beginning of year	$	39,469		$	40,884
Service cost		1,018			1,166
Interest cost		1,599			1,515
Actuarial gain		(43	)		(2,873	)
Benefit payments		(1,289	)		(1,223	)
Pension benefit obligation end of year		40,754			39,469
Change in Plan Assets
Fair value of plan assets beginning of year		31,835			30,575
Actual return on plan assets		2,621			183
Employer contributions		2,300			2,300
Benefits paid		(1,289	)		(1,223	)
Fair value of plan assets end of year		35,467			31,835
Funded Status of Plans at End of Year	$	(5,287	)	$	(7,634	)

The accounting standards require that the funded status of defined benefit pension plans be fully recognized on the balance sheets.  They also call for the unrecognized actuarial gain or loss, the unrecognized prior service cost and the unrecognized transition costs to be adjustments to shareholders’ equity (accumulated other comprehensive income).  Due to a rate order granted by the PPUC, the Company is permitted under the accounting standards to defer the charges otherwise recorded in accumulated other comprehensive income as a regulatory asset.  Management believes these costs will be recovered in future rates charged to customers.  The liability for the funded status of the Company’s pension plans is recorded in “Deferred employee benefits” on its balance sheets.

In 2016, the plans recognized a small actuarial gain.  The Company adopted the new mortality improvement scale (MP-2016), but recognized a 20 basis point decrease in the discount rate and lowered the expected long-term return on plan assets from 7.00% to 6.75%.  In 2015, the plans recognized an actuarial gain due to the 40 basis point increase in the discount rate and the adoption of an adjusted RP-2014 mortality table and improvement scale (MP-2015) which lessened the impact of the RP-2014 mortality table.  The Company uses the corridor method to amortize actuarial gains and losses.  Gains and losses over 10% of the greater of pension benefit obligation or the market value of assets are amortized over the average future service of plan participants expected to receive benefits.

Changes in plan assets and benefit obligations recognized in regulatory assets are as follows:

	2016			2015
Net gain arising during the period	$	(432	)	$	(826	)
Recognized net actuarial loss		(561	)		(705	)
Recognized prior service credit		13			13
Total changes in regulatory asset during the year	$	(980	)	$	(1,518	)

Amounts recognized in regulatory assets that have not yet been recognized as components of net periodic benefit cost consist of the following at December 31:

	2016			2015
Net loss	$	9,454		$	10,447
Prior service credit		(114	)		(127	)
Regulatory asset	$	9,340		$	10,320

Components of net periodic benefit cost are as follows:

	2016			2015			2014
Service cost	$	1,018		$	1,166		$	952
Interest cost		1,599			1,515			1,444
Expected return on plan assets		(2,233	)		(2,229	)		(1,986	)
Amortization of loss		561			705			126
Amortization of prior service credit		(13	)		(13	)		(13	)
Rate-regulated adjustment		1,368			1,156			1,659
Net periodic benefit cost	$	2,300		$	2,300		$	2,182

The rate-regulated adjustment set forth above is required in order to reflect pension expense for the Company in accordance with the method used in establishing water rates.  The Company is permitted by rate order of the PPUC to expense pension costs to the extent of contributions and defer the remaining expense to regulatory assets to be collected in rates at a later date as additional contributions are made.  During 2016, the deferral decreased $1,368.

The estimated costs for the defined benefit pension plans relating to the December 31, 2016 balance sheet that will be amortized from regulatory assets into net periodic benefit cost over the next fiscal year are as follows:

Net loss	$	500
Net prior service credit		(13	)
		487

The Company plans to contribute $2,300 to the plans in 2017.

The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid in each of the next five years and the subsequent five years in the aggregate:

2017		2018		2019		2020		2021			2022-2026
$	1,600	$	1,731	$	1,865	$	1,875	$	1,938	$	11,218

The following tables show the projected benefit obligation, the accumulated benefit obligation and the fair value of plan assets as of December 31:

	2016		2015
Projected benefit obligation	$	40,754	$	39,469
Fair value of plan assets		35,467		31,835

	2016		2015
Accumulated benefit obligation	$	37,822	$	36,302
Fair value of plan assets		35,467		31,835

Weighted-average assumptions used to determine benefit obligations at December 31:

	2016			2015
Discount rate		4.00	%		4.20	%
Rate of compensation increase		2.50% - 3.00	%		2.50% - 3.00	%

Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31:

	2016			2015			2014
Discount rate		4.20	%		3.80	%		4.65	%
Expected long-term return on plan assets		6.75	%		7.00	%		7.00	%
Rate of compensation increase		2.50% - 3.00	%		3.00	%		3.00	%

The selected long-term rate of return on plan assets was primarily based on the asset allocation of each of the plan's assets (approximately 50% to 70% equity securities and 30% to 50% fixed income securities).  Analysis of the historic returns of these asset classes and projections of expected future returns were considered in setting the long-term rate of return.

The investment objective of the Company's defined benefit pension plans is that of Growth and Income.  The weighted-average target asset allocations are 50% to 70% equity securities, 30% to 50% fixed income securities, and 0% to 10% reserves (cash and cash equivalents).  Within the equity category, the Company's target allocation is approximately 60-95% large cap, 0-25% mid cap, 0-10% small cap, 0-25% International Developed Nations, and 0-10% International Emerging Nations.  Within the fixed income category, its target allocation is approximately 15-55% U.S. Treasuries, 0–22% Federal Agency securities, 0-40% corporate bonds, 15-55% mortgage-backed securities, 0-20% international, and 0-20% high yield bonds.  The Company's investment performance objectives over a three to five year period are to exceed the annual rate of inflation as measured by the Consumer Price Index by 3%, and to exceed the annualized total return of specified benchmarks applicable to the funds within the asset categories.

Further guidelines within equity securities include: (1) holdings in any one company cannot exceed 5% of the portfolio; (2) a minimum of 20 individual stocks must be included in the domestic stock portfolio; (3) a minimum of 30 individual stocks must be included in the international stock portfolio; (4) equity holdings in any one industry cannot exceed 20-25% of the portfolio; and (5) only U.S.-denominated currency securities are permitted.

Further guidelines for fixed income securities include: (1) fixed income holdings in a single issuer are limited to 5% of the portfolio; (2) acceptable investments include money market securities, U.S. Government and its agencies and sponsored entities' securities, mortgage-backed and asset-backed securities, corporate securities and mutual funds offering high yield bond portfolios; (3) purchases must be limited to investment grade or higher; (4) non-U.S. dollar denominated securities are not permissible; and (5) high risk derivatives are prohibited.

The fair values of the Company's pension plan assets at December 31, 2016 and 2015 by asset category and fair value hierarchy level are as follows.  The majority of the valuations are based on quoted prices on active markets (Level 1), with the remaining valuations based on broker/dealer quotes, active market makers, models, and yield curves (Level 2).

	Total Fair Value				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)
Asset Category	2016		2015		2016		2015		2016		2015
Cash and Money Market Funds (a)	$	635	$	1,205	$	635	$	1,205	$	-	$	-
Equity Securities:
Common Equity Securities (b)		2,969		2,686		2,969		2,686		-		-
Equity Mutual Funds (c)		21,107		18,017		21,107		18,017		-		-
Fixed Income Securities:
U.S. Treasury Obligations		853		833		-		-		853		833
Corporate and Foreign Bonds (d)		3,439		3,427		-		-		3,439		3,427
Fixed Income Mutual Funds (e)		6,464		5,667		6,464		5,667		-		-
Total Plan Assets	$	35,467	$	31,835	$	31,175	$	27,575	$	4,292	$	4,260

(a) The portfolios are designed to keep approximately three months of distributions in immediately available funds.  The Company was more heavily-weighted in cash as of December 31, 2015 due to market volatility.

(b) This category includes investments in U.S. common stocks and foreign stocks trading in the U.S. widely distributed among consumer discretionary, consumer staples, healthcare, information technology, financial services, telecommunications, industrials and energy.  The individual stocks are primarily large cap stocks which track with the S&P 500.

(c) This category currently includes a majority of investments in closed-end mutual funds as well as domestic equity mutual funds and international mutual funds which give the portfolio exposure to mid and large cap index funds as well as international diversified index funds.

(d) This category currently includes only U.S. corporate bonds and notes widely distributed among consumer discretionary, consumer staples, healthcare, information technology and financial services.

(e) This category includes fixed income investments in mutual funds which include government, corporate and mortgage securities of both the U.S. and other countries.  The mortgage-backed securities and non-U.S. corporate and sovereign investments add further diversity to the fixed income portion of the portfolio.

Defined Contribution Plan

The Company has a savings plan pursuant to the provisions of section 401(k) of the Internal Revenue Code.  For employees hired before May 1, 2010, this plan provides for elective employee contributions of up to 15% of compensation and Company matching contributions of 100% of the participant's contribution, up to a maximum annual Company contribution of $2.8 for each employee.

Employees hired after May 1, 2010 are entitled to an enhanced feature of the plan.  This feature provides for elective employee contributions of up to 15% of compensation and Company matching contributions of 100% of the participant's contribution, up to a maximum of 4% of the employee's compensation.  In addition, the Company will make an annual contribution of $1.2 to each employee's account whether or not they defer their own compensation.  Employees eligible for this enhanced 401(k) plan feature are not eligible for the defined benefit plans.  As of December 31, 2016, twenty-two employees were participating in the enhanced feature of the plan.  The Company's contributions to both portions of the plan amounted to $261 in 2016, $262 in 2015, and $239 in 2014.

Deferred Compensation

The Company has non-qualified deferred compensation and supplemental retirement agreements with certain members of management. The future commitments under these arrangements are offset by corporate-owned life insurance policies.  At December 31, 2016 and 2015, the present value of the future obligations was approximately $3,894 and $3,608, respectively.  The insurance policies included in other assets had a total cash value of approximately $2,830 and $3,378 at December 31, 2016 and 2015, respectively.  The Company's net expenses under the plans amounted to $557 in 2016, $380 in 2015 and $658 in 2014.

Other

The Company has a retiree life insurance program which pays the beneficiary of a retiree $2 upon the retiree’s death.  At December 31, 2016 and 2015, the present value of the future obligations was approximately $103 and $98, respectively.  There is no trust or insurance covering this future liability, instead the Company will pay these benefits out of its general assets.  The Company’s net (income) expenses under the plan amounted to $9 in 2016, $(4) in 2015 and $25 in 2014.

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Rate Matters

12 Months Ended

Dec. 31, 2016

Rate Matters [Abstract]

Rate Matters

8. Rate Matters

From time to time, the Company files applications for rate increases with the PPUC and is granted rate relief as a result of such requests.  The most recent rate request was filed by the Company on May 29, 2013 and sought an increase in rates designed to produce additional annual water revenues of $7,116 and additional annual wastewater revenues of $28.  Effective February 28, 2014, the PPUC authorized an increase in water rates designed to produce approximately $4,972 in additional annual revenues, and an increase in wastewater rates for the Asbury Pointe subdivision to produce approximately $28 in additional annual revenues.  The Company anticipates that it will file a rate increase request in 2017.

The PPUC permits water utilities to collect a distribution system improvement charge, or DSIC.  The DSIC allows the Company to add a charge to customers' bills for qualified replacement costs of certain infrastructure without submitting a rate filing.  This surcharge mechanism typically adjusts periodically based on additional qualified capital expenditures completed or anticipated in a future period.  The DSIC is capped at 5% of base rates, and is reset to zero when new base rates that reflect the costs of those additions become effective or when a utility's earnings exceed a regulatory benchmark.  The surcharge reset to zero when the new base rates took effect on February 28, 2014.  Since the reset, the Company’s earnings exceeded the regulatory benchmark, preventing the collection of a DSIC.  The DSIC provided no revenues in 2016 or 2015, and $283 in 2014.  The DSIC is subject to audit by the PPUC.

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Notes Receivable and Customers' Advances for Construction

12 Months Ended

Dec. 31, 2016

Notes Receivable and Customers' Advances for Construction [Abstract]

Notes Receivable and Customers' Advances for Construction

9. Notes Receivable and Customers' Advances for Construction

The Company entered into an agreement with a municipality to extend water service into a previously formed water district.  The Company loaned funds to the municipality to cover the costs related to the project.  The municipality concurrently advanced these funds back to the Company in the form of customers' advances for construction.  The municipality is required by enacted ordinance to charge application fees and water revenue surcharges (fees) to customers connected to the system, which are remitted to the Company.  The note principal and the related customer advance are reduced periodically as operating revenues are earned by the Company from customers connected to the system and refunds of the advance are made.  There is no due date for the notes or expiration date for the advance.  Two notes receivable were fully repaid in 2015.

The Company has recorded interest income of $100 in 2016, $110 in 2015 and $107 in 2014.  The interest rate on the note outstanding at December 31, 2016 is 7.5%.

Included in the accompanying balance sheets at December 31, 2016 and 2015 were the following amounts related to these projects.

	2016		2015
Notes receivable, including interest	$	255	$	255
Customers' advances for construction		307		310

The Company has other customers' advances for construction totaling $6,795 and $7,190 at December 31, 2016 and 2015, respectively.

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Commitments

12 Months Ended

Dec. 31, 2016

Commitments [Abstract]

Commitments

10. Commitments

Based on its capital budget, the Company anticipates construction and acquisition expenditures for 2017 and 2018 of approximately $22,800 and $15,600, respectively, exclusive of any acquisitions not yet approved.  The Company plans to finance ongoing capital expenditures with internally-generated funds, borrowings against the Company’s lines of credit, proceeds from the issuance of common stock under its dividend reinvestment and direct stock purchase and sale plan and ESPP, potential common stock or debt issues and customer advances and contributions.

The Company has committed a total of approximately $10,153 for an additional raw water pumping station and force main, of which $8,445 remains to be incurred as of December 31, 2016.  The Company may make additional commitments for this project in 2017.

During its recently completed triennial testing, the Company determined it exceeded the action level for lead at the customer's tap as established by the Lead and Copper Rule, or LCR, issued by the U.S. Environmental Protection Agency.  The rule allows the Company to have five samples of the 50 high-risk homes tested exceed the action level of 15 parts per billion, or PPB.  The testing found that six properties with lead service lines, all built before 1935, exceeded the action level, and the reported exceedance amount was 1 PPB.  The Company has determined that only 3% of the company-owned service lines in the system are lead.  The Company will be required, per the LCR, to engage in more frequent testing for lead, to provide public education, and annually replace 7% of the remaining company-owned lead service lines in its distribution system.  The Company has announced plans to perform in excess of the required actions.  Specifically, the Company will provide the affected customers with a free water test and a 200 gallon per month credit to flush their line in order to reduce any lead content until their lead service line has been replaced.  The cost of the water tests and flushing credits was $9 for the year ended December 31, 2016 and is expected to be approximately an additional $57 over the next four years.

In addition, the Company has entered into a consent order agreement with the Pennsylvania Department of Environmental Protection.  Under the agreement, the Company has committed to exceed the LCR replacement schedule by replacing all of the remaining company-owned lead service lines within the next four years.  The cost for these service line replacements was approximately $75 for the year ended December 31, 2016 and is included in utility plant.  Additional replacements are expected to be approximately $2,400 over the next four years, and will be integrated into the Company's annual capital budgets.

Finally, the Company has been granted approval by the PPUC to modify its tariff to allow the replacement of lead customer-owned service lines that are discovered when the Company replaces its lead service lines over four years, and to allow the annual replacement of up to 400 lead customer-owned service lines whenever they are discovered, regardless of the material used for the Company-owned service line over nine years.  The tariff modification allows the Company to replace customer-owned service lines at its own initial cost.  The Company will record the costs as a regulatory asset to be recovered in future base rates to customers, over a reasonable period of at least four but not more than six years.  Replacements are expected to be approximately $2,080 under the four-year tariff modification, assuming all company-owned lead service lines are connected to a customer-owned lead service line.  The Company is unable to develop a total estimated cost of the nine-year tariff modification replacements as it does not know how many customer-owned lead service lines are in use.

As of December 31, 2016, approximately 34% of the Company's full time employees are under union contract.  The current contract was ratified in March 2014 and expires on April 30, 2017.  Management is currently preparing for negotiations with the union leadership.  The Company expects to reach an operationally and fiscally responsible agreement with no interruption of service.

The Company is involved in certain legal and administrative proceedings before various courts and governmental agencies concerning water service and other matters.  The Company expects that the ultimate disposition of these proceedings will not have a material effect on the Company's financial position, results of operations and cash flows.

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Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2016

Fair Value of Financial Instruments [Abstract]

Fair Value of Financial Instruments

11. Fair Value of Financial Instruments

The accounting standards regarding fair value measurements establish a fair value hierarchy which indicates the extent to which inputs used in measuring fair value are observable in the market.  Level 1 inputs include quoted prices for identical instruments and are the most observable.  Level 2 inputs include quoted prices for similar assets and observable inputs such as interest rates, commodity rates and yield curves.  Level 3 inputs are not observable in the market and include management’s own judgments about the assumptions market participants would use in pricing the asset or liability.

The Company has recorded its interest rate swap liability at fair value in accordance with the standards.  The liability is recorded under the caption “Other deferred credits” on the balance sheets.  The table below illustrates the fair value of the interest rate swap as of the end of the reporting period.

Description	December 31, 2016	Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2)
Interest Rate Swap	$2,292	$2,292

Fair values are measured as the present value of all expected future cash flows based on the LIBOR-based swap yield curve as of the date of the valuation.  These inputs to this calculation are deemed to be Level 2 inputs.  The balance sheet carrying value reflects the Company's credit quality as of December 31, 2016.  The rate used in discounting all prospective cash flows anticipated to be made under this swap reflects a representation of the yield to maturity for 30-year debt on utilities rated A- as of December 31, 2016.  The use of the Company's credit quality resulted in a reduction in the swap liability of $157 as of December 31, 2016.  The fair value of the swap reflecting the Company's credit quality as of December 31, 2015 is shown in the table below.

Description	December 31, 2015	Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2)
Interest Rate Swap	$2,511	$2,511

The carrying amount of current assets and liabilities that are considered financial instruments approximates fair value as of the dates presented.  The Company's total long-term debt, with a carrying value of $87,488 at December 31, 2016, and $87,542 at December 31, 2015, had an estimated fair value of approximately $99,000 and $102,000, respectively.  The estimated fair value of debt was calculated using a discounted cash flow technique that incorporates a market interest yield curve with adjustments for duration and risk profile.  These inputs to this calculation are deemed to be Level 2 inputs.  The Company recognized its credit rating in determining the yield curve, and did not factor in third party credit enhancements including bond insurance on the 2006 York County Industrial Development Authority issue and the letter of credit on the 2008 PEDFA Series A issue.

Customers' advances for construction and notes receivable have carrying values at December 31, 2016 of $7,102 and $255, respectively.  At December 31, 2015, customers' advances for construction and notes receivable had carrying values of $7,500 and $255, respectively.  The relative fair values of these amounts cannot be accurately estimated since the timing of future payment streams is dependent upon several factors, including new customer connections, customer consumption levels and future rate increases.

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Taxes Other than Income Taxes

12 Months Ended

Dec. 31, 2016

Taxes Other than Income Taxes [Abstract]

Taxes Other than Income Taxes

12. Taxes Other than Income Taxes

The following table provides the components of taxes other than income taxes:

	2016		2015		2014
Regulatory Assessment	$	243	$	242	$	218
Property		339		334		339
Payroll, net of amounts capitalized		530		510		494
Capital Stock		1		42		59
Other		1		1		1
Total taxes other than income taxes	$	1,114	$	1,129	$	1,111

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Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2016

Selected Quarterly Financial Data (Unaudited) [Abstract]

Selected Quarterly Financial Data (Unaudited)

13. Selected Quarterly Financial Data (Unaudited)

	First		Second		Third		Fourth		Year
2016
Operating revenues	$	11,278	$	11,820	$	12,601	$	11,885	$	47,584
Operating income		5,214		5,695		6,414		5,565		22,888
Net income		2,486		2,847		3,571		2,942		11,846
Basic earnings per share		0.19		0.23		0.27		0.23		0.92
Diluted earnings per share		0.19		0.23		0.27		0.23		0.92
Dividends declared per share		0.1555		0.1555		0.1555		0.1602		0.6267
2015
Operating revenues	$	11,209	$	11,895	$	12,368	$	11,617	$	47,089
Operating income		5,134		5,682		6,353		5,492		22,661
Net income		2,528		2,925		3,520		3,516		12,489
Basic earnings per share		0.20		0.22		0.28		0.27		0.97
Diluted earnings per share		0.20		0.22		0.28		0.27		0.97
Dividends declared per share		0.1495		0.1495		0.1495		0.1555		0.6040

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Schedule II Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2016

Schedule II Valuation and Qualifying Accounts [Abstract]

Schedule II Valuation and Qualifying Accounts

THE YORK WATER COMPANY

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS

FOR THE THREE YEARS ENDED DECEMBER 31, 2016

			Additions
Description	Balance at Beginning of Year		Charged to Cost and Expenses		Recoveries		Deductions		Balance at End of Year
FOR THE YEAR ENDED DECEMBER 31, 2016 Reserve for uncollectible accounts	$	315,000	$	291,108	$	38,976	$	340,084	$	305,000
FOR THE YEAR ENDED DECEMBER 31, 2015 Reserve for uncollectible accounts	$	325,000	$	292,248	$	40,681	$	342,929	$	315,000
FOR THE YEAR ENDED DECEMBER 31, 2014 Reserve for uncollectible accounts	$	320,000	$	322,499	$	44,071	$	361,570	$	325,000

The Deductions column above represents write-offs of accounts receivable during the applicable year.

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Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2016

Significant Accounting Policies [Abstract]

Utility Plant and Depreciation

Utility Plant and Depreciation

The cost of additions includes contracted cost, direct labor and fringe benefits, materials, overhead and, for certain utility plant, allowance for funds used during construction.  In accordance with regulatory accounting requirements, water and wastewater systems acquired are recorded at estimated original cost of utility plant when first devoted to utility service and the applicable depreciation is recorded to accumulated depreciation.  The difference between the estimated original cost less applicable accumulated depreciation, and the purchase price and acquisition costs is recorded as an acquisition adjustment within utility plant as permitted by the PPUC.  At December 31, 2016 and 2015, utility plant includes a net credit acquisition adjustment of $3,667 and $3,724, respectively.  For those amounts approved by the PPUC, the net acquisition adjustment is being amortized over the remaining life of the respective assets. Certain amounts are still awaiting approval from the PPUC before amortization will commence.  Amortization amounted to $58 in 2016, $58 in 2015, and $54 in 2014.

Upon normal retirement of depreciable property, the estimated or actual cost of the asset is credited to the utility plant account, and such amounts, together with the cost of removal less salvage value, are charged to the reserve for depreciation.  To the extent the Company recovers cost of removal or other retirement costs through rates after the retirement costs are incurred, a regulatory asset is reported.  Gains or losses from abnormal retirements are reflected in income currently.

The straight-line remaining life method is used to compute depreciation on utility plant cost, exclusive of land and land rights.  Annual provisions for depreciation of transportation and mechanical equipment included in utility plant are computed on a straight-line basis over the estimated service lives.  Such provisions are charged to clearing accounts and apportioned therefrom to operating expenses and other accounts in accordance with the Uniform System of Accounts as prescribed by the PPUC.

The Company charges to maintenance expense the cost of repairs and replacements and renewals of minor items of property.  Maintenance of transportation equipment is charged to clearing accounts and apportioned therefrom in a manner similar to depreciation.  The cost of replacements, renewals and betterments of units of property is capitalized to the utility plant accounts.

The following remaining lives are used for financial reporting purposes:

	December 31,				Approximate range
Utility Plant Asset Category	2016		2015		of remaining lives
Mains and accessories	$	176,068	$	170,991	10 – 83 years
Services, meters and hydrants		68,510		66,267	19 – 54 years
Operations structures, reservoirs and water tanks		46,494		44,739	11 – 37 years
Pumping and treatment equipment		29,459		27,664	2 – 33 years
Office, transportation and operating equipment		12,360		11,725	3 – 20 years
Land and other non-depreciable assets		3,172		3,172		-
Utility plant in service		336,063		324,558
Construction work in progress		7,349		4,857		-
Total Utility Plant	$	343,412	$	329,415

The effective rate of depreciation was 2.25% in 2016, 2.24% in 2015, and 2.26% in 2014 on average utility plant, net of customers' advances and contributions. Larger depreciation provisions resulting from allowable accelerated methods are deducted for tax purposes.

Cash and Cash Equivalents

Cash and Cash Equivalents

For the purposes of the statements of cash flows, the Company considers all highly liquid debt instruments purchased with an original  maturity of three months or less to be cash equivalents except for those instruments earmarked to fund construction expenditures or repay long-term debt.

The Company periodically maintains cash balances in major financial institutions in excess of the federally insured limit by the Federal Deposit Insurance Corporation (FDIC).  The Company has not experienced any losses and believes it is not exposed to any significant credit risk on cash and cash equivalents.

Accounts Receivable

Accounts Receivable

Accounts receivable are stated at outstanding balances, less a reserve for doubtful accounts.  The reserve for doubtful accounts is established through provisions charged against income.  Accounts deemed to be uncollectible are charged against the reserve and subsequent recoveries, if any, are credited to the reserve.  The reserve for doubtful accounts is maintained at a level considered adequate to provide for losses that can be reasonably anticipated.  Management's periodic evaluation of the adequacy of the reserve is based on past experience, agings of the receivables, adverse situations that may affect a customer's ability to pay, current economic conditions, and other relevant factors.  This evaluation is inherently subjective.  Unpaid balances remaining after the stated payment terms are considered past due.

Revenue Recognition

Revenue Recognition

Operating revenues include amounts billed to water customers on a cycle basis and unbilled amounts based on actual and estimated usage from the latest meter reading to the end of the accounting period.  Operating revenues also include amounts billed to wastewater customers as either a flat monthly fee or a metered rate based on water consumption.  The metered wastewater revenue includes actual and estimated usage from the latest meter reading to the end of the accounting period.

Materials and Supplies Inventories

Materials and Supplies Inventories

Materials and supplies inventories are stated at cost.  Costs are determined using the average cost method.

Notes Receivable

Notes Receivable

Notes receivable are recorded at cost and represent amounts due from various municipalities for construction of water mains in their particular municipality.  Management, considering current information and events regarding the borrowers' ability to repay their obligations, considers a note to be impaired when it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the note agreement.  When a note is considered to be impaired, the carrying value of the note is written down.  The amount of the impairment is measured based on the present value of expected future cash flows discounted at the note's effective interest rate.

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

The Company is subject to the provisions of generally accepted accounting principles regarding rate-regulated entities.  The accounting standards provide for the recognition of regulatory assets and liabilities as allowed by regulators for costs or credits that are reflected in current customer rates or are considered probable of being included in future rates.  The regulatory assets or liabilities are then relieved as the cost or credit is reflected in rates.  Regulatory assets represent costs that are expected to be fully recovered from customers in future rates while regulatory liabilities represent amounts that are expected to be refunded to customers in future rates.  These deferred costs have been excluded from the Company’s rate base and, therefore, no return is being earned on the unamortized balances.

Regulatory assets and liabilities are comprised of the following:

	December 31,				Remaining
	2016		2015		Recovery Periods
Assets
Income taxes	$	20,609	$	18,389	Various
Postretirement benefits		7,471		9,819	5 – 10 years
Unrealized swap losses		2,264		2,481	1 – 13 years
Utility plant retirement costs		2,679		2,247	5 years
Service life study expenses		4		3	1 years
Rate case filing expenses		-		57
		33,027		32,996
Liabilities
IRS TPR catch-up deduction		3,887		3,887	Not yet known
Income taxes		753		776	1 – 50 years
	$	4,640	$	4,663

The regulatory asset for income taxes includes (a) deferred state income taxes related primarily to differences between book and tax depreciation expense, (b) deferred income taxes related to the differences that arise between specific asset improvement costs capitalized for book purposes and deducted as a repair expense for tax purposes, and (c) deferred income taxes associated with the gross-up of revenues related to the differences.  These assets are recognized for ratemaking purposes on a cash or flow-through basis and will be recovered in rates as they reverse.

Postretirement benefits include the difference between contributions and deferred pension expense and the underfunded status of the pension plans.  The underfunded status represents the difference between the projected benefit obligation and the fair market value of the assets.  This asset is expected to be recovered in future years as additional contributions are made or market conditions accelerate.  The recovery period is dependent on contributions made to the plans, plan asset performance and the discount rate used to value the obligations.  The period is estimated at between 5 and 10 years.

The Company uses regulatory accounting treatment to defer the mark-to-market unrealized gains and losses on its interest rate swap to reflect that the gain or loss is included in the ratemaking formula when the transaction actually settles.  The value of the swap as of the balance sheet date is recorded as part of other deferred credits.  Realized gains or losses on the swap will be recorded as interest expense in the statement of income over its remaining life of 13 years.

Utility plant retirement costs represents costs already incurred for the removal of assets, which are expected to be recovered over a five-year period in rates, through depreciation expense.  Service life study expenses are deferred and amortized over their remaining life of one year.  Rate case filing expenses were fully amortized in 2016.

The regulatory liability for the Internal Revenue Service, or IRS, tangible property regulations, or TPR, catch-up deduction represents the tax benefits realized on the Company’s 2014 income tax return for qualifying capital expenditures made prior to 2014.  The Company will seek approval from the PPUC in its next rate filing to amortize the catch-up deduction.

The regulatory liability for income taxes relates mainly to deferred investment tax credits, and additionally to deferred taxes related to postretirement death benefits and bad debts.  These liabilities will be given back to customers in rates as tax deductions occur over the next 1 to 50 years.

Regulatory liabilities are part of other accrued expenses and other deferred credits on the balance sheets.

Other Assets

Other Assets

Other assets consist mainly of the cash value of life insurance policies held as an investment by the Company for reimbursement of costs and benefits associated with its supplemental retirement and deferred compensation programs.

Deferred Debt Expense

Deferred Debt Expense

Deferred debt expense is amortized on a straight-line basis over the term of the related debt and is presented on the balance sheet as a direct reduction from long-term debt.

Customers' Advances for Construction

Customers' Advances for Construction

Customer advances are cash payments from developers, municipalities, customers or builders for construction of utility plant, and are refundable upon completion of construction, as operating revenues are earned.  If the Company loans funds for construction to the customer, the refund amount is credited to the note receivable rather than paid out in cash.  After all refunds to which the customer is entitled are made, any remaining balance is transferred to contributions in aid of construction.  From 1986 to 1996 when customer advances were taxable income to the Company, additional funds were collected from customers to cover the taxes.  Those funds were recorded as a liability within Customer Advances for Construction and were amortized as deferred income over the tax life of the underlying assets.  These amounts were fully amortized in 2016.

Contributions in Aid of Construction

Contributions in Aid of Construction

Contributions in Aid of Construction is composed of (i) direct, non-refundable contributions from developers, customers or builders for construction of water infrastructure and (ii) customer advances that have become non-refundable.  Contributions in aid of construction are deducted from the Company’s rate base, and therefore, no return is earned on property financed with contributions.  The PPUC requires that contributions received remain on the Company’s balance sheets indefinitely as a long-term liability.

Interest Rate Swap Agreement

Interest Rate Swap Agreement

The Company is exposed to certain risks relating to its ongoing business operations.  The primary risk managed by using derivative instruments is interest rate risk.  The Company utilizes an interest rate swap agreement to convert its variable-rate debt to a fixed rate.  Interest rate swaps are contracts in which a series of interest rate cash flows are exchanged over a prescribed period.  The notional amount on which the interest payments are based is not exchanged.  The Company has designated the interest rate swap agreement as a cash flow hedge, classified as a financial derivative used for non-trading activities.

The accounting standards regarding accounting for derivatives and hedging activities require companies to recognize all derivative instruments as either assets or liabilities at fair value on the balance sheets.  In accordance with the standards, the interest rate swap is recorded on the balance sheets in other deferred credits at fair value.

The Company uses regulatory accounting treatment rather than hedge accounting to defer the unrealized gains and losses on its interest rate swap.  Instead of the effective portion being recorded as other comprehensive income and the ineffective portion being recognized in earnings, the entire unrealized swap value is recorded as a regulatory asset.  Based on current ratemaking treatment, the Company expects the gains and losses to be recognized in rates and in interest expense as the swap settlements occur.  Swap settlements are recorded in the income statement with the hedged item as interest expense.  Swap settlements resulted in the reclassification from regulatory assets to interest expense of $345 in 2016, $366 in 2015, and $368 in 2014.  The overall swap result was a loss of $128 in 2016, $285 in 2015, and $1,318 in 2014.  During the twelve months ending December 31, 2017, the Company expects to reclassify $310 (before tax) from regulatory assets to interest expense.

The interest rate swap will expire on October 1, 2029.

Stock-Based Compensation

Stock-Based Compensation

The Company records compensation expense in the financial statements for stock-based awards based on the grant date fair value of those awards.  Stock-based compensation expense is recognized over the requisite service periods of the awards on a straight-line basis, which is generally commensurate with the vesting term.  Forfeitures are recognized as they occur.

Income Taxes

Income Taxes

Certain income and expense items are accounted for in different time periods for financial reporting than for income tax reporting purposes.

Deferred income taxes are accounted for under the asset and liability method.  Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and tax credit carryforwards.  Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled.  The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date.  To the extent such income taxes increase or decrease future rates, an offsetting regulatory asset or liability has been recorded.

Investment tax credits have been deferred and are being amortized to income over the average estimated service lives of the related assets.  As of December 31, 2016 and 2015, deferred investment tax credits amounted to $657 and $696, respectively.

The Company filed for a change in accounting method under the IRS TPR effective in 2014.  Under the change in accounting method, the Company is permitted to deduct the costs of certain asset improvements that were previously being capitalized and depreciated for tax purposes as an expense on its income tax return.  The Company is permitted to make this deduction for prior years (the “catch-up deduction”) and each year going forward, beginning with 2014 (the “ongoing deduction”).  The ongoing deduction results in a reduction in the effective income tax rate, a net reduction in income tax expense, and a reduction in the amount of income taxes currently payable.  The catch-up deduction resulted in a decrease in current income taxes payable and an increase to regulatory liabilities.  The Company will seek approval from the PPUC in its next rate filing to amortize the remaining catch-up deduction recorded as a regulatory liability.  Both the ongoing and catch-up deductions resulted in increases to deferred tax liabilities and regulatory assets representing the appropriate book and tax basis difference on capital additions.

Allowance for Funds Used During Construction

Allowance for Funds Used During Construction

Allowance for funds used during construction (AFUDC) represents the estimated cost of funds used for construction purposes during the period of construction.  These costs are reflected as non-cash income during the construction period and as an addition to the cost of plant constructed.  AFUDC includes the net cost of borrowed funds and a rate of return on other funds.  The PPUC approved rate of 10.04% was applied for 2016 and 2014.  The Company applied a blended rate in 2015 due to its partial use of tax-exempt financing for 2015 construction projects.  The tax-exempt borrowing rates of 4.00% - 4.50% were applied to those expenditures so financed, whereas the approved 10.04% rate was applied to the remainder of 2015 expenditures.  AFUDC is recovered through water and wastewater rates as utility plant is depreciated.

Use of Estimates in the Preparation of Financial Statements

Use of Estimates in the Preparation of Financial Statements

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Actual results could differ from those estimates.

Reclassifications

Reclassifications

Certain 2015 and 2014 amounts have been reclassified to conform to the 2016 presentation.  Such reclassifications had no effect on net income, the statement of common stockholders’ equity, or the statement of cash flow category reporting.

Impact of Recent Accounting Pronouncements

Impact of Recent Accounting Pronouncements

In August 2016, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2016-15, Statement of Cash Flows (Topic 320): Classification of Certain Cash Receipts and Cash Payments.  This ASU clarifies how certain cash receipts and payments should be presented in the statement of cash flows.  The ASU is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years, with early adoption available.  The Company does not expect the adoption of this standard to have a material impact on its financial position, results of operations and cash flows.

In March 2016, the FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting.  This ASU involves multiple aspects of the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows.  The ASU is effective for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years, with early adoption available.  The Company adopted this ASU in 2016 upon its first issuance of share-based payments.  The adoption of this ASU did not have any impact on its prior financial statements.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which replaces the existing guidance in Accounting Standard Codification 840 – Leases.  This ASU requires a dual approach for lessee accounting under which a lessee would account for leases as finance leases or operating leases.  Both finance leases and operating leases will result in the lessee recognizing a right-of-use asset and a corresponding lease liability.  For finance leases, the lessee would recognize interest expense and amortization of the right-of-use asset, and for operating leases, the lessee would recognize a straight-line total lease expense.  This ASU is effective for fiscal years beginning after December 15, 2018, and for interim periods within those fiscal years.  The Company is currently assessing the impact of the adoption of the standard, but it expects the adoption to have little or no effect on its financial position, results of operations and cash flows.

In November 2015, the FASB issued ASU No. 2015-17, Balance Sheet Classification of Deferred Taxes.  This ASU requires that deferred tax liabilities and assets be classified as noncurrent in a classified statement of financial position.  The current requirement that deferred tax liabilities and assets of a tax-paying component of an entity be offset and presented as a single amount is not affected by the amendments in this update.  This ASU is effective for fiscal years beginning after December 15, 2016, and for interim periods within those fiscal years.  Early adoption is permitted, and the Company adopted this ASU in the first quarter of 2016.  The Company applied the ASU retrospectively and reclassified the current deferred income tax asset of $215 to offset the noncurrent deferred income tax liability on the December 31, 2015 balance sheet.  The adoption did not have a material impact on the results of operations or cash flows of the Company.

In April 2015, the FASB issued ASU No. 2015-03, Simplifying the Presentation of Debt Issuance Costs.  This ASU clarifies the required presentation of debt issuance costs.  The standard requires that debt issuance costs be presented on the balance sheet as a direct reduction from the carrying amount of the recognized debt liability, consistent with the treatment of debt discounts.  Amortization of debt issuance costs is to be reported as interest expense.  The recognition and measurement guidance for debt issuance costs are not affected by the standard.  This ASU is effective for fiscal years beginning after December 15, 2015, and the Company adopted this ASU in the first quarter of 2016.  The Company applied the ASU retrospectively and reclassified the deferred debt expense asset of $2,743 to offset long-term debt on the December 31, 2015 balance sheet.  The adoption did not have a material impact on the results of operations or cash flows of the Company.

In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties About an Entity’s Ability to Continue as a Going Concern, which provides guidance on determining when and how reporting entities must disclose going-concern uncertainties in their financial statements.  The new standard requires management to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date of issuance of the entity’s financial statements.  Further, an entity must provide certain disclosures if there is substantial doubt about the entity’s ability to continue as a going concern.  The ASU is effective for fiscal years ending on or after December 15, 2016 and interim periods thereafter.  The Company adopted this ASU in 2016.  The Company is complying with these assessments, but the adoption of this ASU did not have any impact on its financial statements.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers.  This ASU supersedes the revenue recognition requirements in Accounting Standards Codification 605—Revenue Recognition and most industry-specific guidance throughout the Codification.  The standard requires that an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services.  In August 2015, the FASB issued ASU 2015-14, Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date, deferring the effective date of this amendment for public companies by one year to fiscal years beginning after December 15, 2017.  Early adoption is permitted for fiscal years beginning after December 15, 2016, the original effective date.  The standard permits the use of either a retrospective or cumulative effect transition method.  The Company has not yet selected a transition method and is in the process of assessing the impact of the adoption of the standard on its financial position, results of operations and cash flows.  Based on its evaluation of ASU 2014-09, the Company currently does not expect it to have a material impact on its results of operations or cash flows in the periods after adoption.  Under ASU 2014-09, revenue is recognized as control transfers to the customer.  As such, revenue for the Company’s contracts is generally from a single performance obligation that will be recognized at a point in time.  This is consistent with the revenue recognition model it currently uses for its contracts.  The Company will complete its assessment of the expected impact of adoption, including selecting a transition method for adoption, in 2017, and continue to evaluate ASU 2014-09 through the date of adoption.

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Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Significant Accounting Policies [Abstract]

Utility Plant

The following remaining lives are used for financial reporting purposes:

	December 31,				Approximate range
Utility Plant Asset Category	2016		2015		of remaining lives
Mains and accessories	$	176,068	$	170,991	10 – 83 years
Services, meters and hydrants		68,510		66,267	19 – 54 years
Operations structures, reservoirs and water tanks		46,494		44,739	11 – 37 years
Pumping and treatment equipment		29,459		27,664	2 – 33 years
Office, transportation and operating equipment		12,360		11,725	3 – 20 years
Land and other non-depreciable assets		3,172		3,172		-
Utility plant in service		336,063		324,558
Construction work in progress		7,349		4,857		-
Total Utility Plant	$	343,412	$	329,415

Regulatory Assets and Liabilities

Regulatory assets and liabilities are comprised of the following:

	December 31,				Remaining
	2016		2015		Recovery Periods
Assets
Income taxes	$	20,609	$	18,389	Various
Postretirement benefits		7,471		9,819	5 – 10 years
Unrealized swap losses		2,264		2,481	1 – 13 years
Utility plant retirement costs		2,679		2,247	5 years
Service life study expenses		4		3	1 years
Rate case filing expenses		-		57
		33,027		32,996
Liabilities
IRS TPR catch-up deduction		3,887		3,887	Not yet known
Income taxes		753		776	1 – 50 years
	$	4,640	$	4,663

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Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Taxes [Abstract]

Provisions for Income Taxes

The provisions for income taxes consist of:

	2016			2015			2014
Federal current	$	2,681		$	1,873		$	96
State current		1,082			597			28
Federal deferred		1,683			2,131			3,757
State deferred		2			177			1,035
Federal investment tax credit, net of current utilization		(39	)		(38	)		(39	)
Total income taxes	$	5,409		$	4,740		$	4,877

Reconciliation of Statutory Federal Tax Provision to Total Provision

A reconciliation of the statutory Federal tax provision (34%) to the total provision follows:

	2016			2015			2014
Statutory Federal tax provision	$	5,867		$	5,858		$	5,563
State income taxes, net of Federal benefit		715			511			702
IRS TPR ongoing deduction		(962	)		(1,438	)		(1,342	)
Tax-exempt interest		(34	)		(37	)		(37	)
Amortization of investment tax credit		(39	)		(38	)		(39	)
Cash value of life insurance		44			71			15
Domestic production deduction		(194	)		(190	)		-
Other, net		12			3			15
Total income taxes	$	5,409		$	4,740		$	4,877

Deferred Tax Assets and Liabilities

The tax effects of temporary differences between book and tax balances that give rise to significant portions of the deferred tax assets and deferred tax liabilities as of December 31, 2016 and 2015 are summarized in the following table:

	2016		2015
Deferred tax assets:
Reserve for doubtful accounts	$	124	$	128
Compensated absences		212		221
Deferred compensation		1,581		1,465
Customers' advances and contributions		-		1
Deferred taxes associated with the gross-up of revenues necessary to return, in rates, the effect of temporary differences		124		122
Pensions		2,146		3,099
Contribution carryover		-		147
Other costs deducted for book, not for tax		57		51
Total deferred tax assets		4,244		5,234
Deferred tax liabilities:
Accelerated depreciation		38,063		36,210
Basis differences from IRS TPR		8,339		7,196
Investment tax credit		390		413
Deferred taxes associated with the gross-up of revenues necessary to recover, in rates, the effect of temporary differences		8,183		7,271
Tax effect of pension regulatory asset		3,033		3,986
Other costs deducted for tax, not for book		405		438
Total deferred tax liabilities		58,413		55,514
Net deferred tax liability	$	54,169	$	50,280
In accordance with accounting standards, the net deferred tax liability is classified as a noncurrent deferred income tax liability on the balance sheets.

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Long-Term Debt and Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2016

Long-Term Debt and Short-Term Borrowings [Abstract]

Long-Term Debt

Long-term debt as of December 31, 2016 and 2015 is summarized in the following table:

	2016			2015
10.17% Senior Notes, Series A, due 2019	$	6,000		$	6,000
9.60% Senior Notes, Series B, due 2019		5,000			5,000
1.00% Pennvest Note, due 2019		118			162
10.05% Senior Notes, Series C, due 2020		6,500			6,500
8.43% Senior Notes, Series D, due 2022		7,500			7,500
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds, Series 2008A, due 2029		12,000			12,000
4.75% York County Industrial Development Authority Revenue Bonds, Series 2006, due 2036		10,500			10,500
4.50% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2014, due 2038		14,870			14,880
5.00% Monthly Senior Notes, Series 2010A, due 2040		15,000			15,000
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045		10,000			10,000
Total long-term debt		87,488			87,542
Less discount on issuance of long-term debt		(226	)		(237	)
Less unamortized debt issuance costs		(2,609	)		(2,743	)
Less current maturities		(44	)		(44	)
Long-term portion	$	84,609		$	84,518

Payments Due by Year

Payments due by year as of December 31, 2016:

2017		2018		2019		2020		2021
$	44	$	12,044	$	11,030	$	6,500	$	-

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Common Stock and Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Common Stock and Earnings Per Share [Abstract]

Shares Used in Computing Basic and Diluted Net Income per Share

Net income of $11,846 is used to calculate both basic and diluted earnings per share.  Basic net income per share is based on the weighted average number of common shares outstanding.  Diluted net income per share is based on the weighted average number of common shares outstanding plus potentially dilutive shares.  The dilutive effect of employee stock-based compensation is included in the computation of diluted net income per share.  The dilutive effect of stock-based compensation is calculated using the treasury stock method and expected proceeds upon exercise or issuance of the stock-based compensation.  The following table summarizes the shares used in computing basic and diluted net income per share:

	2016		2015		2014
Weighted average common shares, basic		12,845,955		12,831,687		12,879,912
Effect of dilutive securities:
Employee stock-based compensation		18		-		-
Weighted average common shares, diluted		12,845,973		12,831,687		12,879,912

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Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Stock Based Compensation [Abstract]

Restricted Stock

The following tables summarize the stock grant amounts and activity for the year ended December 31, 2016.  No stock awards were granted previously.

	Number of Shares			Grant Date Weighted Average Fair Value
Nonvested at beginning of the year		-			-
Granted		1,231		$	37.20
Vested		(571	)	$	37.20
Forfeited		-			-
Nonvested at end of the year		660		$	37.20

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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2016

Employee Benefit Plans [Abstract]

Obligations and Funded Status

The following table sets forth the plans' funded status as of December 31, 2016 and 2015.  The measurement of assets and obligations of the plans is as of December 31, 2016 and 2015.

Obligations and Funded Status At December 31	2016			2015
Change in Benefit Obligation
Pension benefit obligation beginning of year	$	39,469		$	40,884
Service cost		1,018			1,166
Interest cost		1,599			1,515
Actuarial gain		(43	)		(2,873	)
Benefit payments		(1,289	)		(1,223	)
Pension benefit obligation end of year		40,754			39,469
Change in Plan Assets
Fair value of plan assets beginning of year		31,835			30,575
Actual return on plan assets		2,621			183
Employer contributions		2,300			2,300
Benefits paid		(1,289	)		(1,223	)
Fair value of plan assets end of year		35,467			31,835
Funded Status of Plans at End of Year	$	(5,287	)	$	(7,634	)

Changes in Plan Assets and Benefit Obligations Recognized in Regulatory Assets

Changes in plan assets and benefit obligations recognized in regulatory assets are as follows:

	2016			2015
Net gain arising during the period	$	(432	)	$	(826	)
Recognized net actuarial loss		(561	)		(705	)
Recognized prior service credit		13			13
Total changes in regulatory asset during the year	$	(980	)	$	(1,518	)

Amounts Recognized in Regulatory Assets That Have Not Yet Been Recognized as Components of Net Periodic Benefit Cost

Amounts recognized in regulatory assets that have not yet been recognized as components of net periodic benefit cost consist of the following at December 31:

	2016			2015
Net loss	$	9,454		$	10,447
Prior service credit		(114	)		(127	)
Regulatory asset	$	9,340		$	10,320

Components of Net Periodic Benefit Cost

Components of net periodic benefit cost are as follows:

	2016			2015			2014
Service cost	$	1,018		$	1,166		$	952
Interest cost		1,599			1,515			1,444
Expected return on plan assets		(2,233	)		(2,229	)		(1,986	)
Amortization of loss		561			705			126
Amortization of prior service credit		(13	)		(13	)		(13	)
Rate-regulated adjustment		1,368			1,156			1,659
Net periodic benefit cost	$	2,300		$	2,300		$	2,182

Regulatory Assets to be Reclassified into Net Periodic Benefit Cost Over Next Fiscal Year

The estimated costs for the defined benefit pension plans relating to the December 31, 2016 balance sheet that will be amortized from regulatory assets into net periodic benefit cost over the next fiscal year are as follows:

Net loss	$	500
Net prior service credit		(13	)
		487

Benefit Payments Expected to be Paid

The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid in each of the next five years and the subsequent five years in the aggregate:

2017		2018		2019		2020		2021			2022-2026
$	1,600	$	1,731	$	1,865	$	1,875	$	1,938	$	11,218

Projected Benefit Obligation and Fair Value of Plan Assets

The following tables show the projected benefit obligation, the accumulated benefit obligation and the fair value of plan assets as of December 31:

	2016		2015
Projected benefit obligation	$	40,754	$	39,469
Fair value of plan assets		35,467		31,835

Accumulated Benefit Obligation and Fair Value of Plan Assets

	2016		2015
Accumulated benefit obligation	$	37,822	$	36,302
Fair value of plan assets		35,467		31,835

Weighted-Average Assumptions Used

Weighted-average assumptions used to determine benefit obligations at December 31:

	2016			2015
Discount rate		4.00	%		4.20	%
Rate of compensation increase		2.50% - 3.00	%		2.50% - 3.00	%

Weighted-average assumptions used to determine net periodic benefit cost for years ended December 31:

	2016			2015			2014
Discount rate		4.20	%		3.80	%		4.65	%
Expected long-term return on plan assets		6.75	%		7.00	%		7.00	%
Rate of compensation increase		2.50% - 3.00	%		3.00	%		3.00	%

Fair Values of Pension Plan Assets

The fair values of the Company's pension plan assets at December 31, 2016 and 2015 by asset category and fair value hierarchy level are as follows.  The majority of the valuations are based on quoted prices on active markets (Level 1), with the remaining valuations based on broker/dealer quotes, active market makers, models, and yield curves (Level 2).

	Total Fair Value				Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)
Asset Category	2016		2015		2016		2015		2016		2015
Cash and Money Market Funds (a)	$	635	$	1,205	$	635	$	1,205	$	-	$	-
Equity Securities:
Common Equity Securities (b)		2,969		2,686		2,969		2,686		-		-
Equity Mutual Funds (c)		21,107		18,017		21,107		18,017		-		-
Fixed Income Securities:
U.S. Treasury Obligations		853		833		-		-		853		833
Corporate and Foreign Bonds (d)		3,439		3,427		-		-		3,439		3,427
Fixed Income Mutual Funds (e)		6,464		5,667		6,464		5,667		-		-
Total Plan Assets	$	35,467	$	31,835	$	31,175	$	27,575	$	4,292	$	4,260

(a) The portfolios are designed to keep approximately three months of distributions in immediately available funds.  The Company was more heavily-weighted in cash as of December 31, 2015 due to market volatility.

(b) This category includes investments in U.S. common stocks and foreign stocks trading in the U.S. widely distributed among consumer discretionary, consumer staples, healthcare, information technology, financial services, telecommunications, industrials and energy.  The individual stocks are primarily large cap stocks which track with the S&P 500.

(c) This category currently includes a majority of investments in closed-end mutual funds as well as domestic equity mutual funds and international mutual funds which give the portfolio exposure to mid and large cap index funds as well as international diversified index funds.

(d) This category currently includes only U.S. corporate bonds and notes widely distributed among consumer discretionary, consumer staples, healthcare, information technology and financial services.

(e) This category includes fixed income investments in mutual funds which include government, corporate and mortgage securities of both the U.S. and other countries.  The mortgage-backed securities and non-U.S. corporate and sovereign investments add further diversity to the fixed income portion of the portfolio.

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Notes Receivable and Customers' Advances for Construction (Tables)

12 Months Ended

Dec. 31, 2016

Notes Receivable and Customers' Advances for Construction [Abstract]

Amounts Related to Water District Projects

Included in the accompanying balance sheets at December 31, 2016 and 2015 were the following amounts related to these projects.

	2016		2015
Notes receivable, including interest	$	255	$	255
Customers' advances for construction		307		310

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Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2016

Fair Value of Financial Instruments [Abstract]

Fair Value of Interest Rate Swap

The Company has recorded its interest rate swap liability at fair value in accordance with the standards.  The liability is recorded under the caption “Other deferred credits” on the balance sheets.  The table below illustrates the fair value of the interest rate swap as of the end of the reporting period.

Description	December 31, 2016	Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2)
Interest Rate Swap	$2,292	$2,292

Fair values are measured as the present value of all expected future cash flows based on the LIBOR-based swap yield curve as of the date of the valuation.  These inputs to this calculation are deemed to be Level 2 inputs.  The balance sheet carrying value reflects the Company's credit quality as of December 31, 2016.  The rate used in discounting all prospective cash flows anticipated to be made under this swap reflects a representation of the yield to maturity for 30-year debt on utilities rated A- as of December 31, 2016.  The use of the Company's credit quality resulted in a reduction in the swap liability of $157 as of December 31, 2016.  The fair value of the swap reflecting the Company's credit quality as of December 31, 2015 is shown in the table below.

Description	December 31, 2015	Fair Value Measurements at Reporting Date Using Significant Other Observable Inputs (Level 2)
Interest Rate Swap	$2,511	$2,511

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Taxes Other than Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Taxes Other than Income Taxes [Abstract]

Components of Taxes Other than Income Taxes

The following table provides the components of taxes other than income taxes:

	2016		2015		2014
Regulatory Assessment	$	243	$	242	$	218
Property		339		334		339
Payroll, net of amounts capitalized		530		510		494
Capital Stock		1		42		59
Other		1		1		1
Total taxes other than income taxes	$	1,114	$	1,129	$	1,111

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Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Selected Quarterly Financial Data (Unaudited) [Abstract]

Selected Quarterly Financial Data

	First		Second		Third		Fourth		Year
2016
Operating revenues	$	11,278	$	11,820	$	12,601	$	11,885	$	47,584
Operating income		5,214		5,695		6,414		5,565		22,888
Net income		2,486		2,847		3,571		2,942		11,846
Basic earnings per share		0.19		0.23		0.27		0.23		0.92
Diluted earnings per share		0.19		0.23		0.27		0.23		0.92
Dividends declared per share		0.1555		0.1555		0.1555		0.1602		0.6267
2015
Operating revenues	$	11,209	$	11,895	$	12,368	$	11,617	$	47,089
Operating income		5,134		5,682		6,353		5,492		22,661
Net income		2,528		2,925		3,520		3,516		12,489
Basic earnings per share		0.20		0.22		0.28		0.27		0.97
Diluted earnings per share		0.20		0.22		0.28		0.27		0.97
Dividends declared per share		0.1495		0.1495		0.1495		0.1555		0.6040

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Significant Accounting Policies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) System	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Significant Accounting Policies [Abstract]
Number of wastewater collection and treatment systems operated | System	2
Utility Plant and Depreciation [Abstract]
Utility plant acquisition adjustments	$ 3,667	$ 3,724
Amortization of utility plant acquisition adjustments	58	58	$ 54
Utility Plant	$ 343,412	$ 329,415
Effective rate of depreciation	2.25%	2.24%	2.26%
Assets [Abstract]
Regulatory assets	$ 33,027	$ 32,996
Liabilities [Abstract]
Regulatory liabilities	4,640	4,663
Interest Rate Swap Agreement [Abstract]
Interest rate swap settlements reclassified from regulatory assets to interest expense	345	366	$ 368
Interest rate swap (gain) loss capitalized	128	285	$ 1,318
Interest rate swap settlements to be reclassified during the next 12 months	$ 310
Interest rate swap expire period	Oct. 01, 2029
Income Taxes [Abstract]
Deferred investment tax credits	$ 657	$ 696
Allowance for Funds Used During Construction [Abstract]
PPUC approved rate for AFUDC	10.04%	10.04%	10.04%
Minimum [Member]
Allowance for Funds Used During Construction [Abstract]
Allowance for tax-exempt funds rate used during construction		4.00%
Maximum [Member]
Allowance for Funds Used During Construction [Abstract]
Allowance for tax-exempt funds rate used during construction		4.50%
IRS TPR Catch-Up Deduction [Member]
Liabilities [Abstract]
Regulatory liabilities	$ 3,887	$ 3,887	$ 4,314
Income Taxes [Member]
Liabilities [Abstract]
Regulatory liabilities	$ 753	776
Income Taxes [Member] | Minimum [Member]
Liabilities [Abstract]
Remaining recovery periods	1 year
Income Taxes [Member] | Maximum [Member]
Liabilities [Abstract]
Remaining recovery periods	50 years
Income Taxes [Member]
Assets [Abstract]
Regulatory assets	$ 20,609	18,389
Postretirement Benefits [Member]
Assets [Abstract]
Regulatory assets	$ 7,471	9,819
Postretirement Benefits [Member] | Minimum [Member]
Assets [Abstract]
Remaining recovery periods	5 years
Postretirement Benefits [Member] | Maximum [Member]
Assets [Abstract]
Remaining recovery periods	10 years
Unrealized Swap Losses [Member]
Assets [Abstract]
Regulatory assets	$ 2,264	2,481
Unrealized Swap Losses [Member] | Minimum [Member]
Assets [Abstract]
Remaining recovery periods	1 year
Unrealized Swap Losses [Member] | Maximum [Member]
Assets [Abstract]
Remaining recovery periods	13 years
Utility Plant Retirement Costs [Member]
Assets [Abstract]
Regulatory assets	$ 2,679	2,247
Remaining recovery periods	5 years
Service Life Study Expenses [Member]
Assets [Abstract]
Regulatory assets	$ 4	3
Remaining recovery periods	1 year
Rate Case Filing Expenses [Member]
Assets [Abstract]
Regulatory assets	$ 0	57
Mains and Accessories [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 176,068	170,991
Mains and Accessories [Member] | Minimum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	10 years
Mains and Accessories [Member] | Maximum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	83 years
Services, Meters and Hydrants [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 68,510	66,267
Services, Meters and Hydrants [Member] | Minimum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	19 years
Services, Meters and Hydrants [Member] | Maximum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	54 years
Operations Structures, Reservoirs and Water Tanks [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 46,494	44,739
Operations Structures, Reservoirs and Water Tanks [Member] | Minimum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	11 years
Operations Structures, Reservoirs and Water Tanks [Member] | Maximum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	37 years
Pumping and Treatment Equipment [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 29,459	27,664
Pumping and Treatment Equipment [Member] | Minimum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	2 years
Pumping and Treatment Equipment [Member] | Maximum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	33 years
Office, Transportation and Operating Equipment [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 12,360	11,725
Office, Transportation and Operating Equipment [Member] | Minimum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	3 years
Office, Transportation and Operating Equipment [Member] | Maximum [Member]
Utility Plant and Depreciation [Abstract]
Approximate range of remaining lives	20 years
Land and Other Non-Depreciable Assets [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 3,172	3,172
Approximate range of remaining lives	0 years
Utility Plant in Service [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 336,063	324,558
Construction Work in Progress [Member]
Utility Plant and Depreciation [Abstract]
Utility Plant	$ 7,349	4,857
Approximate range of remaining lives	0 years
Accounting Standards Update 2015-17 [Member]
Impact of Recent Accounting Pronouncements [Abstract]
Deferred income taxes		215
Accounting Standards Update 2015-03 [Member]
Impact of Recent Accounting Pronouncements [Abstract]
Deferred debt expense		$ 2,743

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Acquisitions (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Customer	Dec. 31, 2015 USD ($) Customer	Dec. 31, 2014 USD ($) Customer
Acquisitions [Abstract]
Purchase price	$ 50	$ 352	$ 369
Acquisition adjustment	(3,667)	(3,724)
Wastewater Facilities of East Prospect Borough Authority [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer			400
Purchase price			$ 281
Change in acquisition adjustment		2
Acquisition adjustment		(665)	$ (667)
Water Assets of Forest Lakes Water Association [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer			70
Purchase price			$ 18
Change in acquisition adjustment		2
Acquisition adjustment		(7)	$ (9)
Water Assets of Lincoln Estates Mobile Home Park [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer			200
Purchase price			$ 70
Acquisition adjustment		$ (77)
Water Assets of The Meadows Community [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer		90
Purchase price		$ 63
Acquisition adjustment		$ (159)
Water Assets of Paradise Homes Community [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer		90
Purchase price		$ 36
Acquisition adjustment		$ (28)
Water Assets of Newberry Farms Mobile Home Park [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer		160
Purchase price		$ 129
Change in purchase price	13
Water Assets of Margaretta Mobile Home Park [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer		65
Purchase price		$ 102
Change in purchase price	(31)
Acquisition adjustment	$ 56
Water Assets of Crestview Mobile Home Park [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer	120
Purchase price	$ 47
Acquisition adjustment	$ 19
Water Assets of Westwood Mobile Home Park [Member]
Acquisitions [Abstract]
Number of customers acquired | Customer	200
Purchase price	$ 21
Acquisition adjustment	$ (76)

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Income Taxes (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Position	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Provisions for Income Taxes [Abstract]
Federal current	$ 2,681	$ 1,873	$ 96
State current	1,082	597	28
Federal deferred	1,683	2,131	3,757
State deferred	2	177	1,035
Federal investment tax credit, net of current utilization	(39)	(38)	(39)
Total income taxes	$ 5,409	$ 4,740	$ 4,877
Reconciliation of Statutory Federal Tax Provision to Total Provision [Abstract]
Statutory Federal tax percentage	34.00%	34.00%	34.00%
Statutory Federal tax provision	$ 5,867	$ 5,858	$ 5,563
State income taxes, net of Federal benefit	715	511	702
IRS TPR ongoing deduction	(962)	(1,438)	(1,342)
Tax-exempt interest	(34)	(37)	(37)
Amortization of investment tax credit	(39)	(38)	(39)
Cash value of life insurance	44	71	15
Domestic production deduction	(194)	(190)	0
Other, net	12	3	15
Total income taxes	5,409	4,740	4,877
Regulatory Liabilities [Abstract]
Regulatory liabilities	4,640	4,663
Deferred Tax Assets [Abstract]
Reserve for doubtful accounts	124	128
Compensated absences	212	221
Deferred compensation	1,581	1,465
Customers' advances and contributions	0	1
Deferred taxes associated with the gross-up of revenues necessary to return, in rates, the effect of temporary differences	124	122
Pensions	2,146	3,099
Contribution carryover	0	147
Other costs deducted for book, not for tax	57	51
Total deferred tax assets	4,244	5,234
Deferred Tax Liabilities [Abstract]
Accelerated depreciation	38,063	36,210
Basis differences from IRS TPR	8,339	7,196
Investment tax credit	390	413
Deferred taxes associated with the gross-up of revenues necessary to recover, in rates, the effect of temporary differences	8,183	7,271
Tax effect of pension regulatory asset	3,033	3,986
Other costs deducted for tax, not for book	405	438
Total deferred tax liabilities	58,413	55,514
Net deferred tax liability	54,169	50,280
Other Income Tax Disclosures [Abstract]
Uncertain tax positions	$ 0
Number of new tax positions taken | Position	0
Interest or penalties	$ 0	0	0
Maximum [Member]
Other Income Tax Disclosures [Abstract]
Open tax year	2015
Minimum [Member]
Other Income Tax Disclosures [Abstract]
Open tax year	2013
Valuation Allowance of Deferred Tax Assets [Member]
Other Income Tax Disclosures [Abstract]
Valuation allowance	$ 0	0
IRS TPR Catch-Up Deduction [Member]
Regulatory Liabilities [Abstract]
Regulatory liabilities	$ 3,887	$ 3,887	$ 4,314

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Long-Term Debt and Short-Term Borrowings, Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Long-term Debt [Abstract]
Long-term debt	$ 87,488	$ 87,542
Less discount on issuance of long-term debt	(226)	(237)
Less unamortized debt issuance costs	(2,609)	(2,743)
Less current maturities	(44)	(44)
Long-term portion	84,609	84,518
10.17% Senior Notes, Series A, due 2019 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 6,000	6,000
Interest rate	10.17%
9.60% Senior Notes, Series B, due 2019 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 5,000	5,000
Interest rate	9.60%
1.00% Pennvest Note, due 2019 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 118	162
Interest rate	1.00%
10.05% Senior Notes, Series C, due 2020 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 6,500	6,500
Interest rate	10.05%
8.43% Senior Notes, Series D, due 2022 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 7,500	7,500
Interest rate	8.43%
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds Series 2008A due 2029 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 12,000	12,000
4.75% York County Industrial Development Authority Revenue Bonds, series 2006, due 2036 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 10,500	10,500
Interest rate	4.75%
4.50% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2014, due 2038 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 14,870	14,880
Interest rate	4.50%
5.00% Monthly Senior Notes, Series 2010A, due 2040 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 15,000	15,000
Interest rate	5.00%
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member]
Long-term Debt [Abstract]
Long-term debt	$ 10,000	$ 10,000
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member] | Minimum [Member]
Long-term Debt [Abstract]
Interest rate	4.00%
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member] | Maximum [Member]
Long-term Debt [Abstract]
Interest rate	4.50%

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Long-Term Debt and Short-Term Borrowings, Payments Due by Year (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Payments Due by Year [Abstract]
2017	$ 44
2018	12,044
2019	11,030
2020	6,500
2021	0
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds Series 2008A due 2029 [Member]
Payments Due by Year [Abstract]
2018	$ 12,000

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Long-Term Debt and Short-Term Borrowings, Fixed Rate Long-Term Debt (Details) - USD ($) $ in Thousands	Jul. 23, 2015	Dec. 31, 2016	Dec. 31, 2015
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member]
Long-Term Debt [Abstract]
Face value	$ 10,000
Net proceeds	$ 9,500
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member] | Minimum [Member]
Long-Term Debt [Abstract]
Interest rate		4.00%
4.00% - 4.50% York County Industrial Development Authority Exempt Facilities Revenue Bonds, Series 2015, due 2029 - 2045 [Member] | Maximum [Member]
Long-Term Debt [Abstract]
Interest rate		4.50%
4.50% Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Refunding Bonds, Series 2014, due 2038 [Member]
Long-Term Debt [Abstract]
Interest rate		4.50%
Maximum amount that can be redeemed per individual interest per year		$ 25
Maximum amount that can be redeemed in the aggregate per year		300
Bonds tendered for redemption that meet special provisions		0
Bonds redeemed that meet special provisions		$ 10	$ 0

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Long-Term Debt and Short-Term Borrowings, Variable Rate Long-Term Debt (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Variable Rate Long-Term Debt [Abstract]
Maturity date	Oct. 01, 2029
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds Series 2008A due 2029 [Member]
Variable Rate Long-Term Debt [Abstract]
Face value	$ 12,000
Variable interest rate, annual average	0.47%	0.06%
Variable interest rate, at year end	0.80%	0.02%
Period in which to reimburse bank for purchase price of tendered bonds that have not been remarketed	14 months
Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds Series 2008A due 2029 [Member] | Letter of Credit [Member]
Variable Rate Long-Term Debt [Abstract]
Expiration date	Jun. 30, 2018

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Long-Term Debt and Short-Term Borrowings, Interest Rate Swap Agreement (Details) - Interest Rate Swap [Member] - Variable Rate Pennsylvania Economic Development Financing Authority Exempt Facilities Revenue Bonds Series 2008A due 2029 [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Interest Rate Swap Agreement [Abstract]
Notional amount of swap	$ 12,000
Potential payment to counterparty	$ 2,449
Fixed interest rate	3.16%
Net payment rate on swap	2.86%	3.06%
Interest rate spread in basis points	0.39%	(0.18%)
Overall effective rate, including variable interest and swap payments	3.55%	2.98%
LIBOR [Member]
Interest Rate Swap Agreement [Abstract]
Percentage of variable interest rate	59.00%
Term of variable rate	1 month

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Long-Term Debt and Short-Term Borrowings, Short-Term Borrowings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Bank	Dec. 31, 2015 USD ($)
Line of Credit Facility [Abstract]
Borrowing capacity	$ 41,500
Number of banks in which unsecured line of credit maintained | Bank	4
Unsecured Line of Credit, First Note [Member]
Line of Credit Facility [Abstract]
Borrowing capacity	$ 13,000
Maturity period	2 years
Maturity date	May 31, 2018
Outstanding borrowings under line of credit	$ 0	$ 0
Unsecured Line of Credit, First Note [Member] | LIBOR [Member]
Line of Credit Facility [Abstract]
Basis adjustment	1.20%
Unsecured Line of Credit, Second Note [Member]
Line of Credit Facility [Abstract]
Borrowing capacity	$ 11,000
Maturity date	May 31, 2018
Outstanding borrowings under line of credit	$ 0	0
Unsecured Line of Credit, Second Note [Member] | LIBOR [Member]
Line of Credit Facility [Abstract]
Basis adjustment	1.25%
Unsecured Line of Credit, Third Note [Member]
Line of Credit Facility [Abstract]
Borrowing capacity	$ 7,500
Maturity date	Jun. 30, 2017
Outstanding borrowings under line of credit	$ 0	0
Unsecured Line of Credit, Third Note [Member] | LIBOR [Member]
Line of Credit Facility [Abstract]
Basis adjustment	1.25%
Unsecured Line of Credit, Fourth Note [Member]
Line of Credit Facility [Abstract]
Borrowing capacity	$ 10,000
Maturity date	Sep. 30, 2017
Outstanding borrowings under line of credit	$ 0	$ 0
Unsecured Line of Credit, Fourth Note [Member] | LIBOR [Member]
Line of Credit Facility [Abstract]
Basis adjustment	1.20%

XML

Long-Term Debt and Short-Term Borrowings, Debt Covenants and Restrictions (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Debt Covenants and Restrictions [Abstract]
Maximum borrowing percentage of utility plant	60.00%
Base amount added to annual net income to determine restriction on dividends and stock acquisition	$ 1,500
1.00% Pennvest Note, due 2019 [Member]
Debt Covenants and Restrictions [Abstract]
Amount of receivables pledged as collateral	$ 800

XML

Common Stock and Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Oct. 03, 2016	Mar. 11, 2013
Common Stock and Earnings Per Share [Abstract]
Net income	$ 2,942	$ 3,571	$ 2,847	$ 2,486	$ 3,516	$ 3,520	$ 2,925	$ 2,528	$ 11,846	$ 12,489	$ 11,484
Shares Used in Computing Basic and Diluted Net Income per Share [Abstract]
Weighted average common shares, basic (in shares)									12,845,955	12,831,687	12,879,912
Effect of dilutive securities [Abstract]
Employee stock-based compensation									18	0	0
Weighted average common shares, diluted (in shares)									12,845,973	12,831,687	12,879,912
Stock Repurchase Program [Abstract]
Number of shares authorized to be repurchased under the stock repurchase program (in shares)													1,200,000
Number of shares repurchased and retired under the stock repurchase program (in shares)									46,771	121,012	282,570
Number of remaining shares authorized to be repurchased under the stock repurchase program (in shares)	655,233								655,233
Employee Stock Purchase Plan [Member]
Common Stock [Abstract]
Minimum period full-time employees must be employed to purchase shares									90 days
Maximum percentage of gross compensation allowed to purchase shares									10.00%
Purchase price as a percentage of fair market value of common stock									95.00%
Number of shares issued (in shares)									5,115	7,417	7,431
Number of authorized shares remaining to be issued (in shares)	75,596								75,596
Dividend Reinvestment and Direct Stock Purchase and Sale Plan [Member]
Common Stock [Abstract]
Number of shares authorized to be issued (in shares)												331,000
Number of shares authorized, unissued, and rolled over under plan												170,240
Number of shares issued (in shares)									80,343	95,451	126,379
Number of authorized shares remaining to be issued (in shares)	492,639								492,639
Optional Dividend Reinvestment Portion of Plan [Member]
Common Stock [Abstract]
Purchase price as a percentage of fair market value of common stock									95.00%
Direct Stock Purchase Portion of Plan [Member]
Common Stock [Abstract]
Purchase price as a percentage of fair market value of common stock									100.00%

XML

Stock Based Compensation (Details) - LTIP [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	May 02, 2016
Long-Term Incentive Plan [Abstract]
Maximum number of shares of common stock that can be issued under the plan (in shares)		100,000
Term of plan	10 years
Maximum number of shares of common stock subject to awards that may be granted to a participant per calendar year (in shares)	2,000
Restricted Stock [Member]
Number of Shares [Roll Forward]
Nonvested at beginning of the year (in shares)	0
Granted (in shares)	1,231
Vested (in shares)	(571)
Forfeited (in shares)	0
Nonvested at end of the year (in shares)	660
Grant Date Weighted Average Fair Value [Abstract]
Nonvested at beginning of the year (in dollars per share)	$ 0
Granted (in dollars per share)	37.20
Vested (in dollars per share)	37.20
Forfeited (in dollars per share)	0
Nonvested at end of the year (in dollars per share)	$ 37.20
Stock Based Compensation Expense [Abstract]
Stock based compensation expense	$ 22
Recognized tax benefits related to stock based compensation expense	9
Fair value of vested shares	21
Stock based compensation expense not yet recognized	$ 24
Period of recognition	3 years
Restricted Stock [Member] | Employees [Member]
Long-Term Incentive Plan [Abstract]
Vesting period	3 years

XML

Employee Benefit Plans, Changes in Benefit Obligation and Plan Assets (Details) - Defined Benefit Pension Plans Combined [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Employee Benefit Plans [Abstract]
Maximum period of eligible service	30 years
Change in Benefit Obligation [Abstract]
Pension benefit obligation, beginning of year	$ 39,469	$ 40,884
Service cost	1,018	1,166	$ 952
Interest cost	1,599	1,515	1,444
Actuarial (gain) loss	(43)	(2,873)
Benefit payments	(1,289)	(1,223)
Pension benefit obligation, end of year	40,754	39,469	40,884
Change in Plan Assets [Abstract]
Fair value of plan assets, beginning of year	31,835	30,575
Actual return on plan assets	2,621	183
Employer contributions	2,300	2,300
Benefits paid	(1,289)	(1,223)
Fair value of plan assets, end of year	35,467	31,835	30,575
Funded Status of Plans at end of year	$ (5,287)	$ (7,634)
Change in discount rate	(0.20%)	0.40%
Threshold for amortization of gains and losses	10.00%
Changes in Plan Assets and Benefit Obligations Recognized in Regulatory Assets [Abstract]
Net (gain) loss arising during the period	$ (432)	$ (826)
Recognized net actuarial loss	(561)	(705)	$ (126)
Recognized prior service credit (cost)	13	13
Total changes in regulatory asset during the year	(980)	(1,518)
Amounts Recognized in Regulatory Assets that Have Not Yet Been Recognized as Components of Net Periodic Benefit Cost [Abstract]
Net loss	9,454	10,447
Prior service (credit) cost	(114)	(127)
Regulatory asset	$ 9,340	$ 10,320

XML

Employee Benefit Plans, Components of Net Periodic Benefit Cost (Details) - Defined Benefit Pension Plans Combined [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of Net Periodic Benefit Cost [Abstract]
Service cost	$ 1,018	$ 1,166	$ 952
Interest cost	1,599	1,515	1,444
Expected return on plan assets	(2,233)	(2,229)	(1,986)
Amortization of loss	561	705	126
Amortization of prior service (credit) cost	(13)	(13)	(13)
Rate-regulated adjustment	1,368	1,156	1,659
Net periodic benefit cost	2,300	$ 2,300	$ 2,182
Change in defined benefit plan regulatory asset from pension contribution greater (less) than net periodic benefit cost	(1,368)
Regulatory Assets to be Reclassified into Net Periodic Benefit Cost over Next Fiscal Year [Abstract]
Net loss	500
Net prior service credit	(13)
Regulatory assets to be reclassified into net periodic benefit cost during the next fiscal year	$ 487

XML

Employee Benefit Plans, Benefit Payments Expected to be Paid (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($)
Estimated Future Employer Contributions [Abstract]
Estimated employer contributions in 2017	$ 2,300
Defined Benefit Pension Plans Combined [Member]
Benefit Payments Expected to be Paid [Abstract]
2017	1,600
2018	1,731
2019	1,865
2020	1,875
2021	1,938
2022 - 2026	$ 11,218

XML

Employee Benefit Plans, Projected Benefit Obligation, Accumulated Benefit Obligation and Fair Value of Plan Assets (Details) - Defined Benefit Pension Plans Combined [Member] - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Projected Benefit Obligation and Fair Value of Plan Assets [Abstract]
Projected benefit obligation	$ 40,754	$ 39,469	$ 40,884
Fair value of plan assets	35,467	31,835	30,575
Accumulated Benefit Obligation and Fair Value of Plan Assets [Abstract]
Accumulated benefit obligation	37,822	36,302
Fair value of plan assets	$ 35,467	$ 31,835	$ 30,575

XML

Employee Benefit Plans, Weighted-Average Assumptions Used (Details) - Defined Benefit Pension Plans Combined [Member] - Stock	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Weighted-Average Assumptions Used to Determine Benefit Obligations [Abstract]
Discount rate	4.00%	4.20%
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost [Abstract]
Discount rate	4.20%	3.80%	4.65%
Expected long-term return on plan assets	6.75%	7.00%	7.00%
Rate of compensation increase		3.00%	3.00%
Target Asset Allocations [Abstract]
Percentage by which the return on plan assets should exceed the annual rate of inflation	3.00%
Maximum equity securities holdings in any one company	5.00%
Minimum number of individual stocks that must be included in the domestic stock portfolio	20
Minimum number of individual stocks that must be included in the international stock portfolio	30
Maximum fixed income securities holdings in any single issuer	5.00%
Minimum [Member]
Weighted-Average Assumptions Used to Determine Benefit Obligations [Abstract]
Rate of compensation increase	2.50%	2.50%
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost [Abstract]
Rate of compensation increase	2.50%
Target Asset Allocations [Abstract]
Investment performance objectives benchmark period	3 years
Maximum equity securities holdings in any one company	20.00%
Maximum [Member]
Weighted-Average Assumptions Used to Determine Benefit Obligations [Abstract]
Rate of compensation increase	3.00%	3.00%
Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost [Abstract]
Rate of compensation increase	3.00%
Target Asset Allocations [Abstract]
Investment performance objectives benchmark period	5 years
Maximum equity securities holdings in any one company	25.00%
Equity Securities [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Asset allocation of plan assets	50.00%
Weighted-average target asset allocations	50.00%
Equity Securities [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Asset allocation of plan assets	70.00%
Weighted-average target asset allocations	70.00%
Equity Securities [Member] | Large Cap [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	60.00%
Equity Securities [Member] | Large Cap [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	95.00%
Equity Securities [Member] | Mid Cap [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Equity Securities [Member] | Mid Cap [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	25.00%
Equity Securities [Member] | Small Cap [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Equity Securities [Member] | Small Cap [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	10.00%
Equity Securities [Member] | International Developed Nations [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Equity Securities [Member] | International Developed Nations [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	25.00%
Equity Securities [Member] | International Emerging Nations [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Equity Securities [Member] | International Emerging Nations [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	10.00%
Fixed Income Securities [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Asset allocation of plan assets	30.00%
Weighted-average target asset allocations	30.00%
Fixed Income Securities [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Asset allocation of plan assets	50.00%
Weighted-average target asset allocations	50.00%
Fixed Income Securities [Member] | U.S. Treasuries [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	15.00%
Fixed Income Securities [Member] | U.S. Treasuries [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	55.00%
Fixed Income Securities [Member] | Federal Agency Securities [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Fixed Income Securities [Member] | Federal Agency Securities [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	22.00%
Fixed Income Securities [Member] | Corporate Bonds [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Fixed Income Securities [Member] | Corporate Bonds [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	40.00%
Fixed Income Securities [Member] | Mortgage-Backed Securities [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	15.00%
Fixed Income Securities [Member] | Mortgage-Backed Securities [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	55.00%
Fixed Income Securities [Member] | International [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Fixed Income Securities [Member] | International [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	20.00%
Fixed Income Securities [Member] | High Yield Bonds [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Fixed Income Securities [Member] | High Yield Bonds [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	20.00%
Cash and Cash Equivalents [Member] | Minimum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	0.00%
Cash and Cash Equivalents [Member] | Maximum [Member]
Target Asset Allocations [Abstract]
Weighted-average target asset allocations	10.00%

XML

Employee Benefit Plans, Fair Values of Pension Plan Assets (Details) - Defined Benefit Pension Plans Combined [Member] - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets		$ 35,467	$ 31,835	$ 30,575
Cash and Money Market Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[1]	635	1,205
Common Equity Securities [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[2]	2,969	2,686
Equity Mutual Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[3]	21,107	18,017
U.S. Treasury Obligations [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets		853	833
Corporate and Foreign Bonds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[4]	3,439	3,427
Fixed Income Mutual Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[5]	6,464	5,667
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets		31,175	27,575
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Cash and Money Market Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[1]	635	1,205
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Common Equity Securities [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[2]	2,969	2,686
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Equity Mutual Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[3]	21,107	18,017
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | U.S. Treasury Obligations [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets		0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Corporate and Foreign Bonds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[4]	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] | Fixed Income Mutual Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[5]	6,464	5,667
Significant Other Observable Inputs (Level 2) [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets		4,292	4,260
Significant Other Observable Inputs (Level 2) [Member] | Cash and Money Market Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[1]	0	0
Significant Other Observable Inputs (Level 2) [Member] | Common Equity Securities [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[2]	0	0
Significant Other Observable Inputs (Level 2) [Member] | Equity Mutual Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[3]	0	0
Significant Other Observable Inputs (Level 2) [Member] | U.S. Treasury Obligations [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets		853	833
Significant Other Observable Inputs (Level 2) [Member] | Corporate and Foreign Bonds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[4]	3,439	3,427
Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Mutual Funds [Member]
Fair Value of Pension Plan Assets [Abstract]
Fair value of plan assets	[5]	$ 0	$ 0

[1] The portfolios are designed to keep approximately three months of distributions in immediately available funds. The Company was more heavily-weighted in cash as of December 31, 2015 due to market volatility.

[2] This category includes investments in U.S. common stocks and foreign stocks trading in the U.S. widely distributed among consumer discretionary, consumer staples, healthcare, information technology, financial services, telecommunications, industrials and energy. The individual stocks are primarily large cap stocks which track with the S&P 500.

[3] This category currently includes a majority of investments in closed-end mutual funds as well as domestic equity mutual funds and international mutual funds which give the portfolio exposure to mid and large cap index funds as well as international diversified index funds.

[4] This category currently includes only U.S. corporate bonds and notes widely distributed among consumer discretionary, consumer staples, healthcare, information technology and financial services.

[5] This category includes fixed income investments in mutual funds which include government, corporate and mortgage securities of both the U.S. and other countries. The mortgage-backed securities and non-U.S. corporate and sovereign investments add further diversity to the fixed income portion of the portfolio.

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Employee Benefit Plans, Defined Contribution Plan, Deferred Compensation and Other (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) Employee	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Defined Contribution Plan [Abstract]
Maximum elective employee contribution percentage	15.00%
Company matching contribution percentage	100.00%
Maximum annual Company contribution for each employee	$ 2,800
Maximum annual Company contribution as a percentage of employee's compensation	4.00%
Annual Company discretionary contribution	$ 1,200
Number of employees participating in enhanced feature of plan | Employee	22
Contributions to defined contribution plan	$ 261,000	$ 262,000	$ 239,000
Deferred Compensation [Abstract]
Present value of future obligations	3,894,000	3,608,000
Total cash value of insurance policies	2,830,000	3,378,000
Net expenses under deferred compensation plans	557,000	380,000	658,000
Other [Abstract]
Amount payable upon retiree's death	2,000
Present value of future obligations	103,000	98,000
(Income) expenses under retiree life insurance program	$ 9,000	$ (4,000)	$ 25,000

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Rate Matters (Details) - PPUC [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Rate Request Filed on May 29, 2013 [Member] | Water [Member]
Rate Matters [Abstract]
Requested increase in annual revenue	$ 7,116
Authorized increase in annual revenue	4,972
Rate Request Filed on May 29, 2013 [Member] | Wastewater [Member]
Rate Matters [Abstract]
Requested increase in annual revenue	28
Authorized increase in annual revenue	28
DSIC [Member]
Rate Matters [Abstract]
Distribution system improvement charge revenue	$ 0	$ 0	$ 283
DSIC [Member] | Maximum [Member]
Rate Matters [Abstract]
Distribution system improvement charge percentage over base rate	5.00%
DSIC [Member] | Minimum [Member]
Rate Matters [Abstract]
Distribution system improvement charge percentage over base rate	0.00%

XML

Notes Receivable and Customers' Advances for Construction (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Municipality	Dec. 31, 2015 USD ($) Note	Dec. 31, 2014 USD ($)
Notes Receivable and Customers' Advances for Construction [Abstract]
Number of municipalities with agreements to extend water service | Municipality	1
Number of notes receivable repaid | Note		2
Interest income on notes receivable	$ 100	$ 110	$ 107
Interest rate on notes outstanding	7.50%
Amounts Related to Water District Projects Included in Balance Sheet [Abstract]
Notes receivable, including interest	$ 255	255
Customers' advances for construction	307	310
Other customers' advances for construction	$ 6,795	$ 7,190

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Commitments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) gal / mo Sample Home PartsPerBillion ServiceLine
Number of Employees [Abstract]
Percentage of people employed under union contract	34.00%
Company-Owned Lead Service Lines [Member]
Other Commitments [Abstract]
Number of samples that can exceed action level | Sample	5
Number of high-risk homes tested for lead | Home	50
Action level for lead | PartsPerBillion	15
Number of samples that exceeded action level | Sample	6
Amount of exceedance | PartsPerBillion	1
Percentage of company-owned lead service lines	3.00%
Percentage of company-owned lead service lines to be replaced annually	7.00%
Monthly credit provided to affected customers to flush line | gal / mo	200
Water testing expenses and flushing credits incurred	$ 9
Water testing expense and flushing credits to be incurred	$ 57
Term for water testing expense and flushing credits	4 years
Term to replace all remaining company-owned lead service lines	4 years
Costs for service line replacements incurred	$ 75
Costs for service line replacements to be incurred	$ 2,400
Term to integrate service line replacement costs into annual capital budgets	4 years
Customer-Owned Lead Service Lines [Member]
Other Commitments [Abstract]
Costs for service line replacements to be incurred	$ 2,080
Term of tariff modification to replace customer-owned lead service lines connected to company-owned lead service lines	4 years
Term of tariff modification to replace customer-owned lead service lines regardless of material used for company-owned service lines	9 years
Number of lead customer-owned service lines to be replaced annually | ServiceLine	400
Customer-Owned Lead Service Lines [Member] | Minimum [Member]
Other Commitments [Abstract]
Remaining recovery period	4 years
Customer-Owned Lead Service Lines [Member] | Maximum [Member]
Other Commitments [Abstract]
Remaining recovery period	6 years
Construction and Acquisition Expenditures [Member]
Capital Commitments [Abstract]
Commitment for 2017	$ 22,800
Commitment for 2018	15,600
Commitment for Additional Raw Water Pumping Station and Force Main [Member]
Capital Commitments [Abstract]
Total commitment	10,153
Remaining capital commitments to be incurred	$ 8,445

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Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Interest Rate Swap [Abstract]
Term of debt on utilities rated A- used to discount prospective cash flows	30 years
Reduction in the fair value of swap liability	$ 157
Fair Value on a Recurring Basis [Member]
Interest Rate Swap [Abstract]
Interest rate swap	2,292	$ 2,511
Fair Value on a Recurring Basis [Member] | Fair Value Measurements as Reporting Date Using Significant Other Observable Inputs (Level 2) [Member]
Interest Rate Swap [Abstract]
Interest rate swap	2,292	2,511
Carrying Amount [Member]
Fair Value, Financial Liabilities [Abstract]
Total long-term debt	87,488	87,542
Estimate of Fair Value [Member]
Fair Value, Financial Liabilities [Abstract]
Total long-term debt	99,000	102,000
Carrying Amount (Fair Value Not Accurately Estimated)
Liabilities [Abstract]
Customers' advances for construction	7,102	7,500
Assets [Abstract]
Notes receivable	$ 255	$ 255

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Taxes Other than Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of Taxes Other than Income Taxes [Abstract]
Regulatory Assessment	$ 243	$ 242	$ 218
Property	339	334	339
Payroll, net of amounts capitalized	530	510	494
Capital Stock	1	42	59
Other	1	1	1
Total taxes other than income taxes	$ 1,114	$ 1,129	$ 1,111

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Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Data [Abstract]
Operating revenues	$ 11,885	$ 12,601	$ 11,820	$ 11,278	$ 11,617	$ 12,368	$ 11,895	$ 11,209	$ 47,584	$ 47,089	$ 45,900
Operating income	5,565	6,414	5,695	5,214	5,492	6,353	5,682	5,134	22,888	22,661	22,077
Net income	$ 2,942	$ 3,571	$ 2,847	$ 2,486	$ 3,516	$ 3,520	$ 2,925	$ 2,528	$ 11,846	$ 12,489	$ 11,484
Basic earnings per share (in dollars per share)	$ 0.23	$ 0.27	$ 0.23	$ 0.19	$ 0.27	$ 0.28	$ 0.22	$ 0.20	$ 0.92	$ 0.97	$ 0.89
Diluted earnings per share (in dollars per share)	0.23	0.27	0.23	0.19	0.27	0.28	0.22	0.20	0.92	0.97	0.89
Dividends declared per share (in dollars per share)	$ 0.1602	$ 0.1555	$ 0.1555	$ 0.1555	$ 0.1555	$ 0.1495	$ 0.1495	$ 0.1495	$ 0.6267	$ 0.6040	$ 0.5788

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Schedule II Valuation and Qualifying Accounts (Details) - Reserve for Uncollectible Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Movement in Reserve [Roll Forward]
Balance at beginning of year	$ 315,000	$ 325,000	$ 320,000
Additions - charged to cost and expenses	291,108	292,248	322,499
Additions - recoveries	38,976	40,681	44,071
Deductions	340,084	342,929	361,570
Balance at end of year	$ 305,000	$ 315,000	$ 325,000