10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2024

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 1-13883

CALIFORNIA WATER SERVICE GROUP

(Exact name of registrant as specified in its charter)

Delaware	77-0448994
(State or other jurisdiction	(I.R.S. Employer Identification No.)
of incorporation or organization)

1720 North First Street

San Jose, California 95112

(Address of principal executive offices)

408-367-8200

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class:	Trading Symbol(s)	Name of Each Exchange on Which Registered:
Common Stock, $0.01 par value per share	CWT	New York Stock Exchange

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. Yes ý  No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ý  No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o  

Indicate by check mark whether the registrant is a shell company (as defined in rule 12b-2 of the Exchange Act) Yes ☐  No ☒

As of April 22, 2024, there were 57,754,106 shares of the registrant’s common stock outstanding.

1

TABLE OF CONTENTS

		Page
PART I	Financial Information	3
Item 1.	Financial Statements	3
	Condensed Consolidated Balance Sheets (unaudited) as of March 31, 2024 and December 31, 2023	3
	Condensed Consolidated Statements of Operations (unaudited) For the Three Months Ended March 31, 2024 and 2023	4
	Condensed Consolidated Statements of Cash Flows (unaudited) For the Three Months Ended March 31, 2024 and 2023	5
	Notes to Unaudited Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3.	Quantitative and Qualitative Disclosure about Market Risk	27
Item 4.	Controls and Procedures	27
PART II	Other Information	27
Item 1.	Legal Proceedings	27
Item 1A.	Risk Factors	28
Item 5.	Other Information	28
Item 6.	Exhibits	28
	Signatures	29

2

PART I—FINANCIAL INFORMATION

Item 1. FINANCIAL STATEMENTS

The condensed consolidated financial statements presented in this filing on Form 10-Q have been prepared by management and are unaudited.

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED BALANCE SHEETS

Unaudited (In thousands, except per share data)

	March 31, 2024		December 31, 2023
ASSETS
Utility plant:
Utility plant	$	5,022,535	$	4,925,483
Less accumulated depreciation and amortization	(1,174,013)		(1,152,228)
Net utility plant	3,848,522		3,773,255
Current assets:
Cash and cash equivalents	42,814		39,591
Restricted cash	45,449		45,375
Receivables:
Customers, net	51,346		59,349
Regulatory balancing accounts	56,125		64,240
Other, net	18,074		16,431
Unbilled revenue, net	28,769		36,999
Materials and supplies	16,934		16,170
Taxes, prepaid expenses, and other assets	23,615		18,130
Total current assets	283,126		296,285
Other assets:
Regulatory assets	384,501		257,621
Goodwill	37,039		37,039
Other	227,646		231,333
Total other assets	649,186		525,993
TOTAL ASSETS	$	4,780,834	$	4,595,533
CAPITALIZATION AND LIABILITIES
Capitalization:
Common stock, $0.01 par value; 136,000 shares authorized, 57,754 and 57,724 outstanding on March 31, 2024 and December 31, 2023, respectively	$	578	$	577
Additional paid-in capital	876,894		876,583
Retained earnings	603,326		549,573
Accumulated other comprehensive loss	(13,366)		—
Noncontrolling interests	3,405		3,579
Total equity	1,470,837		1,430,312
Long-term debt, net	1,052,099		1,052,768
Total capitalization	2,522,936		2,483,080
Current liabilities:
Current maturities of long-term debt, net	1,176		672
Short-term borrowings	280,000		180,000
Accounts payable	119,839		157,305
Regulatory balancing accounts	16,644		21,540
Accrued interest	18,332		6,625
Accrued expenses and other liabilities	71,892		64,197
Total current liabilities	507,883		430,339
Deferred income taxes	369,600		352,762
Regulatory liabilities and other	809,165		760,493
Pension	83,252		82,920
Advances for construction	197,955		199,448
Contributions in aid of construction	290,043		286,491
Commitments and contingencies (Note 9)
TOTAL CAPITALIZATION AND LIABILITIES	$	4,780,834	$	4,595,533

See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

3

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

Unaudited (In thousands, except per share data)

	Three Months Ended March 31,
	2024		2023
Operating revenue	$	270,749	$	131,100
Operating expenses:
Operations:
Water production costs	64,185		55,008
Administrative and general	35,596		35,986
Other operations	26,925		16,604
Maintenance	8,010		7,978
Depreciation and amortization	32,844		29,915
Income tax expense (benefit)	15,538		(5,644)
Property and other taxes	9,757		8,777
Total operating expenses	192,855		148,624
Net operating income (loss)	77,894		(17,524)
Other income and expenses:
Non-regulated revenue	5,098		4,623
Non-regulated expenses	(1,954)		(2,275)
Other components of net periodic benefit credit	3,273		5,221
Allowance for equity funds used during construction	1,742		1,404
Income tax expense on other income and expenses	(1,321)		(1,794)
Net other income	6,838		7,179
Interest expense:
Interest expense	15,800		12,818
Allowance for borrowed funds used during construction	(758)		(829)
Net interest expense	15,042		11,989
Net income (loss)	69,690		(22,334)
Net loss attributable to noncontrolling interests	(227)		(123)
Net income (loss) attributable to California Water Service Group	$	69,917	$	(22,211)
Earnings (loss) per share:
Basic	$	1.21	$	(0.40)
Diluted	$	1.21	$	(0.40)
Weighted average shares outstanding:
Basic	57,733		55,666
Diluted	57,774		55,666

See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

4

CALIFORNIA WATER SERVICE GROUP

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

Unaudited (In thousands)

	Three Months Ended March 31,
	2024		2023
Operating activities:
Net income (loss)	$	69,690	$	(22,334)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	33,401		30,433
Change in value of life insurance contracts	(1,667)		(1,641)
Allowance for equity funds used during construction	(1,742)		(1,404)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	21,523		17,089
Accounts payable	(20,043)		(11,230)
Other current assets	(6,028)		(1,342)
Other current liabilities	17,409		10,024
Other changes in noncurrent assets and liabilities	(86,028)		1,375
Net cash provided by operating activities	26,515		20,970
Investing activities:
Utility plant expenditures	(109,806)		(81,980)
Life insurance proceeds	1,426		—
Purchase of life insurance contracts	(1,426)		—
Asset acquisitions	—		(102)
Net cash used in investing activities	(109,806)		(82,082)
Financing activities:
Short-term borrowings, net of debt issuance costs of $0 for 2024 and $1,552 for 2023	170,000		93,448
Repayment of short-term borrowings	(70,000)		(35,000)
Repayment of long-term debt	(206)		(214)
Advances and contributions in aid of construction	4,522		3,696
Refunds of advances for construction	(2,351)		(2,248)
Repurchase of common stock	(1,142)		(1,542)
Issuance of common stock	769		18,842
Dividends paid	(16,164)		(14,456)
Others	1,160		—
Net cash provided by financing activities	86,588		62,526
Change in cash, cash equivalents, and restricted cash	3,297		1,414
Cash, cash equivalents, and restricted cash at beginning of period	84,966		85,025
Cash, cash equivalents, and restricted cash at end of period	$	88,263	$	86,439
Supplemental information:
Cash paid for interest (net of amounts capitalized)	$	3,359	$	1,578
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	$	37,498	$	42,038
Utility plant contribution by developers	$	8,417	$	7,032

See Accompanying Notes to Unaudited Condensed Consolidated Financial Statements

5

CALIFORNIA WATER SERVICE GROUP

Notes to Unaudited Condensed Consolidated Financial Statements

March 31, 2024

Dollar amounts in thousands, unless otherwise stated

Note 1. Organization and Operations and Basis of Presentation

California Water Service Group (Company) is a holding company that provides water utility and other related services in California, Washington, New Mexico, Hawaii, and Texas through its wholly-owned and non-wholly owned subsidiaries. California Water Service Company (Cal Water), Washington Water Service Company (Washington Water), New Mexico Water Service Company (New Mexico Water), and Hawaii Water Service Company, Inc. (Hawaii Water) provide regulated utility services under the rules and regulations of their respective state’s regulatory commissions (jointly referred to as the Commissions). CWS Utility Services and HWS Utility Services LLC provide non-regulated water utility and utility-related services. TWSC, Inc. (Texas Water) holds regulated and contracted wastewater utilities.

The Company operates in one reportable segment, providing water and water-related utility services.

 Basis of Presentation

The unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (SEC) and therefore do not contain all of the information and footnotes required by GAAP and the SEC for annual financial statements. Interim financial information includes the Company’s accounts and those of its wholly and non-wholly owned subsidiaries. The non-wholly owned subsidiary was consolidated using the voting interest model as the Company owns a majority of the non-wholly owned subsidiary’s voting interests. The interim unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2023 as filed with the SEC on February 29, 2024.

The preparation of the Company’s unaudited condensed consolidated interim financial statements in accordance with GAAP 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 balance sheet dates and the reported amounts of revenues and expenses for the periods presented. These include, but are not limited to, estimates and assumptions used in determining the Company’s regulatory asset and liability balances based upon probability assessments of regulatory recovery, utility plant useful lives, revenues earned but not yet billed, asset retirement obligations, allowance for credit losses, pension and other employee benefit plan liabilities, and income tax-related assets and liabilities. Actual results could materially differ from these estimates.

In the opinion of management, the accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of normal recurring transactions that are necessary to provide a fair presentation of the results for the periods covered.

Due to the seasonal nature of the water business, the results for interim periods are not indicative of the results for a 12-month period. Revenue and income are generally higher in the warm, dry summer months when water usage and sales are greater. Revenue and income are generally lower in the winter months when cooler temperatures and rainfall curtail water usage and sales.

Noncontrolling Interests

Noncontrolling interests in the Company’s condensed consolidated financial statements represents the 7.4% interest not owned by Texas Water in a consolidated subsidiary. Texas Water obtained control over the subsidiary on May 1, 2021. Since the Company controls this subsidiary, its financial statements are consolidated with those of the Company, and the noncontrolling owner’s 7.4% share of the subsidiary’s net assets and results of operations is deducted and reported as noncontrolling interests on the Condensed Consolidated Balance Sheet and as net loss attributable to noncontrolling interests in the Condensed Consolidated Statement of Operations. The Company reports noncontrolling interests in consolidated entities as a component of equity separate from the Company’s equity. The Company’s net income (loss) attributable to California Water Service Group excludes the net loss attributable to the noncontrolling interests.

6

Note 2. Summary of Significant Accounting Policies

Operating Revenue

The following table disaggregates the Company’s operating revenue by source for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Revenue from contracts with customers	$	154,900	$	145,225
Regulatory balancing account revenue	115,849		(14,125)
Total operating revenue	$	270,749	$	131,100

Revenue from contracts with customers

The Company principally generates operating revenue from contracts with customers by providing regulated water and wastewater services at tariff-rates authorized by the Commissions in the states in which they operate and non-regulated water and wastewater services at rates authorized by contracts with government agencies. Revenue from contracts with customers reflects amounts billed for the volume of consumption at authorized per unit rates, for a service charge, and for other authorized charges.

The Company satisfies its performance obligation to provide water and wastewater services over time as services are rendered. The Company applies the invoice practical expedient and recognizes revenue from contracts with customers in the amount for which the Company has a right to invoice. The Company has a right to invoice for the volume of consumption, for the service charge, and for other authorized charges.

The measurement of sales to customers is generally based on the reading of their meters, which occurs on a systematic basis throughout the month. At the end of each month, the Company estimates consumption since the date of the last meter reading and the corresponding unbilled revenue is recognized. The estimate is based upon the number of unbilled days that month and the average daily customer billing rate from the previous month (which fluctuates based upon customer usage).

Contract terms are generally short-term and at will by customers and, as a result, no separate financing component is recognized for the Company’s collections from customers, which generally require payment within 30 days of billing. The Company applies judgment, based principally on historical payment experience, in estimating its customers’ ability to pay.

Certain customers are not billed for volumetric consumption, but are instead billed a flat rate at the beginning of each monthly service period. The amount billed is initially deferred and subsequently recognized over the monthly service period, as the performance obligation is satisfied. The deferred revenue balance or contract liability, which is included in “accrued expenses and other liabilities” on the unaudited Condensed Consolidated Balance Sheets, is inconsequential.

7

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Residential	$	92,492	$	84,035
Business	34,549		31,974
Multiple residential	16,869		14,997
Industrial	6,640		5,634
Public authorities	6,962		6,425
Other (a)	(2,612)		2,160
Total revenue from contracts with customers	$	154,900	$	145,225

(a) Other includes accrued unbilled revenue

Regulatory balancing account revenue

Regulatory balancing account revenue is revenue related to revenue mechanisms authorized in California by the California Public Utilities Commission (CPUC). For certain revenue mechanisms, the Company recognizes revenue when it is objectively determinable, probable of recovery and expected to be collected within 24 months following the end of the accounting period. To the extent that revenue is estimated to be collectible beyond 24 months, recognition is deferred. These mechanisms include the Monterey-Style Water Revenue Adjustment Mechanism (MWRAM) which was approved in Cal Water’s most recent General Rate Case (GRC) filing in July 2021 (2021 GRC) in March of 2024. The MWRAM tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The MWRAM is effective retroactive to January 1, 2023. In the first quarter of 2024, the Company recorded $31.1 million of revenue for the MWRAM.

These mechanisms also include the Water Revenue Adjustment Mechanism (WRAM) which decoupled revenue from the volume of the sales and allowed the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts was recorded as regulatory balancing account revenue. The WRAM concluded on December 31, 2022; however, the Company has a net WRAM receivable balance for which the Company continues to defer revenue recognition for amounts estimated to be collected beyond 24 months following the end of the accounting period. The Company intends to apply the proceeds from the California Extended Water and Wastewater Arrearages Payment Program (Extended Program) to eligible customer WRAM balances.

Regulatory balancing accounts also include revenue that is recognized for balancing and memorandum accounts when it is probable that future recovery of previously incurred costs or future refunds that are to be credited to customers will occur through the ratemaking process. As a result of the delay in the approval of the 2021 GRC, the CPUC authorized Cal Water to track the effect of the delay on customer billings in an Interim Rates Memorandum Account (IRMA) effective January 1, 2023. Variances between actual customer billings and those that would have been billed assuming the 2021 GRC had been implemented on January 1, 2023 are recorded as regulatory balancing account revenue. The 2021 GRC was approved in March of 2024 and final authorized rates have not yet been implemented as of March 31, 2024; as a result, Cal Water calculated and recorded this difference for all of 2023 and the first three months of 2024. Cal Water determined that the IRMA met regulatory asset recognition criteria under accounting standards for regulated utilities. In the first quarter of 2024, the Company recorded $80.7 million of revenue for the IRMA.

8

Non-Regulated Revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Operating and maintenance revenue	$	3,248	$	3,235
Other non-regulated revenue	1,229		782
Non-regulated revenue from contracts with customers	4,477		4,017
Lease revenue	621		606
Total non-regulated revenue	$	5,098	$	4,623

Operating and maintenance services are provided for non-regulated water and wastewater systems owned by private companies and municipalities. The Company negotiates formal agreements with the customers under which the Company provides operating, maintenance and customer billing services related to the customers’ water system. The formal agreements outline the fee schedule for the services provided. The agreements typically call for a fee-per-service or a flat-rate amount per month. The Company satisfies its performance obligation of providing operating and maintenance services over time as services are rendered; as a result, the Company employs the invoice practical expedient and recognizes revenue in the amount that it has the right to invoice. Contract terms are generally short-term and, as a result, no separate financing component is recognized for its collections from customers, which generally require payment within 30 days of billing.

Other non-regulated revenue primarily relates to services for the design and installation of water mains and other water infrastructure for customers outside the regulated service areas and insurance program administration.

Lease revenue is not considered revenue from contracts with customers and is recognized following operating lease standards. The Company is the lessor in operating lease agreements with telecommunications companies under which cellular phone antennas are placed on the Company’s property.

Allowance for Credit Losses

The Company measures expected credit losses for Customer Receivables, Other Receivables, and Unbilled Revenue on an aggregated level. These receivables are generally trade receivables due in one year or less or expected to be billed and collected in one year or less. The expected credit losses for Other Receivables and Unbilled Revenue are inconsequential. Customer receivables include receivables for water and wastewater services provided to residential customers, business, industrial, public authorities, and other customers. The expected credit losses for business, industrial, public authorities, and other customers are inconsequential. The overall risks related to the Company’s receivables are low as water and wastewater services are seen as essential services. The estimate for the allowance for credit losses is based on a historical loss ratio, in conjunction with a qualitative assessment of elements that impact the collectability of receivables to determine if the allowance for credit losses should be further adjusted in accordance with the accounting guidance for credit losses. Management contemplates available current information such as changes in economic factors, regulatory matters, industry trends, payment options and programs available to customers, and the methods that the Company is able to use to ensure payment.

The Company reviews its allowance for credit losses utilizing a quantitative assessment, which includes a trend analysis of customer billings and collections, agings by customer class, and unemployment rates. The Company also utilizes a qualitative assessment, which considers the future collectability on customer outstanding balances, management’s estimate of the cash recovery, and a general assessment of the economic conditions in the locations the Company serves. Based on these assessments, the Company adjusts its allowance for credit losses. The Company has also taken into account $82.0 million of funds that the Company received in April of 2024 from the Extended Program for eligible customers in California (refer to Note 11, “Subsequent Events” for more details). The Extended Program was created by the California Legislature, and is administered by the State Water Resources Control Board (Water Board) and provides relief to community water and wastewater systems for unpaid bills – arrearages – related to the COVID-19 pandemic. Based on the above assessments, the Company adjusted its allowance for credit losses accordingly.

9

The following table presents the activity in the allowance for credit losses for the three months ended March 31, 2024 and twelve months ended December 31, 2023:

	March 31, 2024		December 31, 2023
Beginning balance	$	2,854	$	5,629
Provision for credit loss expense	1,052		2,480
Write-offs	(1,288)		(5,795)
Recoveries	126		540
Total ending allowance balance	$	2,744	$	2,854

Cash, Cash Equivalents, and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown on the Condensed Consolidated Statements of Cash Flows (see Note 9 for further details on restricted cash):

	March 31, 2024		December 31, 2023
Cash and cash equivalents	$	42,814	$	39,591
Restricted cash	45,449		45,375
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	88,263	$	84,966

Earnings (Loss) per Share

Basic earnings (loss) per share of common stock is computed by dividing the net income (loss) attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect the potential dilution that could occur if securities or other contracts were exercised or converted into common stock. Restricted Stock Awards (RSAs) are included in the common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock.

New Accounting Standards and SEC Rules

In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for the Company’s annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. The guidance requires retrospective presentation of all prior periods presented in the financial statements. The Company is currently evaluating the potential effect that the updated standard will have on its financial statement disclosures and does not expect to early adopt.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for the Company's annual periods beginning January 1, 2025, with early adoption permitted. The guidance is applied prospectively with the option of retrospective application for each period presented. The Company is currently evaluating the potential effect that the updated standard will have on its financial statement disclosures and does not expect to early adopt.

In March 2024, the SEC issued SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. The final rules enhance disclosures related to the risks and impacts of climate-related matters and, in April 2024, the SEC voluntarily stayed the new rules as a result of pending legal challenges. The new rules, if they become effective as adopted, would require various disclosures related to climate-related risks if those risks could have a material impact on the Company’s business, results of operations, or financial condition. Required disclosures would also include information about the Company’s greenhouse gas emissions, if material. In addition, the rules would require disclosure of certain climate-related financial metrics in the Company’s financial statements. The final rules, if they become effective as adopted, would be effective no earlier than the Company’s Annual Report on Form 10-K for the year ending December 31, 2025. The Company is currently evaluating the potential effect that the rules will have on its financial statement disclosures.

10

Note 3. Stock-Based Compensation.

For the three months ended March 31, 2024, the Company did not grant any RSAs of common stock to Officers or to members of the Board of Directors (Directors). Generally, an RSA share represents the right to receive a share of the Company’s common stock and is valued based on the fair market value of the Company’s common stock at the date of grant. RSAs granted to Officers vest over 36 months with the first year cliff vesting. In general, RSAs granted to the Directors vest at the end of 12 months. The RSAs are recognized as expense evenly over 36 months for the shares granted to Officers and 12 months for the shares granted to the Directors. As of March 31, 2024, there was approximately $1.3 million of total unrecognized compensation cost related to RSAs. The cost is expected to be recognized over a weighted average period of 1.6 years.

A summary of the status of the outstanding RSAs as of March 31, 2024 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2024	53,303	$	55.48
Vested	(28,843)	55.23
RSAs at March 31, 2024	24,460	$	55.78

For the three months ended March 31, 2024, the Company did not grant any performance-based Restricted Stock Units (RSUs) to Officers. Generally, a RSU represents the right to receive a share of the Company’s common stock. Each award reflects a target number of shares of common stock that may be issued to the award recipient. Whether RSUs are earned at the end of the performance period will be determined based on the achievement of certain performance objectives set by the Organization and Compensation Committee of the Board of Directors in connection with the issuance of the RSUs. The performance objectives are based on the Company’s business plan covering the performance period. Depending on the results achieved during the 3-year performance period, the actual number of shares that a grant recipient receives at the end of the performance period may range from 0% to 200% of the target shares granted, provided that the grantee is continuously employed by the Company through the vesting date. If prior to the vesting date employment is terminated by reason of death, disability or normal retirement, then a pro rata portion of this award will vest. The RSUs are recognized as expense ratably over the 3-year performance period using a fair market value of the Company’s common stock at the date of grant and an estimated number of RSUs earned during the performance period. As of March 31, 2024, there was approximately $2.0 million of total unrecognized compensation cost related to RSUs. The cost is expected to be recognized over a weighted average period of 1.5 years.

A summary of the status of outstanding RSUs as of March 31, 2024 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2024	93,078	$	55.41
Performance criteria adjustment	13,735	53.96
Vested	(36,394)	53.96
RSUs at March 31, 2024	70,419	$	55.87

The Company has recorded compensation costs for the RSAs and RSUs which are included in administrative and general operating expenses in the amount of $0.7 million and $0.1 million for the three months ended March 31, 2024 and 2023, respectively.

Note 4. Equity

On April 29, 2022, the Company entered into an equity distribution agreement to sell shares of its common stock having an aggregate gross sales price of up to $350.0 million from time to time depending on market conditions through an at-the-market equity program over the next three years. The Company intends to use the net proceeds from these sales, after deducting commissions and offering expenses, for general corporate purposes, which may include working capital, construction and acquisition expenditures, investments and repurchases, and redemptions of securities. The Company did not utilize its at-the-market equity program during the three months ended March 31, 2024. During the three months ended March 31, 2023, the Company sold 326,042 shares of common stock through its at-the-market equity program and raised proceeds of $18.2 million, net of $0.2 million in sales commissions.

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The Company’s changes in total equity for the three months ended March 31, 2024 and 2023 were as follows:

	Three Months Ended March 31, 2024
	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2024	57,724	$	577	$	876,583	$	549,573	$	—	$	3,579	$	1,430,312
Net income	—	—		—		69,917		—		(227)		69,690
Issuance of common stock	55	1		1,506		—		—		—		1,507
Repurchase of common stock	(25)	—		(1,142)		—		—		—		(1,142)
Dividends paid on common stock ($0.2800 per share)	—	—		—		(16,164)		—		—		(16,164)
Adjustment for unrecoverable pension benefit plan costs	—	—		—		—		(13,663)		—		(13,663)
Amounts reclassified to earnings (a)	—	—		—		—		297		—		297
Investment in business with noncontrolling interest	—	—		(53)		—		—		53		—
Balance at March 31, 2024	57,754	578		876,894		603,326		(13,366)		3,405		1,470,837

(a) This accumulated other comprehensive loss component is included in the computation of net periodic costs for the Company’s supplemental executive retirement plan (SERP), specifically the following components: amortization of unrecognized (gain) loss and amortization of prior service credit.

	Three Months Ended March 31, 2023
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2023	55,598	$	556	$	760,336	$	556,698	$	4,804	$	1,322,394
Net loss	—	—		—		(22,211)		(123)		(22,334)
Issuance of common stock	420	4		17,380		—		—		17,384
Repurchase of common stock	(27)	—		—		—		—		—
Dividends paid on common stock ($0.2600 per share)	—	—		—		(14,456)		—		(14,456)
Investment in business with noncontrolling interest	—	—		(111)		—		111		—
Balance at March 31, 2023	55,991	560		777,605		520,031		4,792		1,302,988

In Cal Water’s 2021 GRC decision that was issued in March of 2024, SERP expenses were not approved to be recovered from customers for the years 2023, 2024 and 2025. Without regulatory recovery, Cal Water no longer meets the regulatory asset recognition criteria to record the unrecognized prior service costs and actuarial gain and loss amounts related to the SERP as a regulatory asset. The Company has applied compensation recognition guidance and recorded the unrecognized prior service costs and actuarial gains and losses to accumulated other comprehensive loss. As of March 31, 2024, the Company reclassified $13.7 million to accumulated other comprehensive loss, which is Cal Water’s cumulative portion of the regulatory asset.

Note 5. Pension Plan and Other Postretirement Benefits

The Company provides a qualified, defined-benefit, non-contributory pension plan for substantially all its employees. The Company makes annual contributions to fund amounts accrued for the qualified pension plan. The Company also maintains an unfunded, non-qualified SERP. The costs of the plans are charged to expense or are capitalized in utility plant as appropriate.

The Company offers medical, dental, vision, and life insurance benefits for retirees and their spouses and dependents. Participants are required to pay a premium, which offsets a portion of the cost.

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No cash contributions were made by the Company to the pension plans nor the other postretirement benefit plans for the three months ended March 31, 2024. The Company made cash contributions of $2.9 million and $0.2 million, respectively, to the pension plans and other postretirement benefit plan for the three months ended March 31, 2023. The Company estimates in 2024 that the annual contribution to the pension plans will be $0.7 million and the annual contribution to the other postretirement plan will be $0.2 million.

The following table lists components of net periodic benefit costs for the pension plans and other postretirement benefits. The data listed under “pension plan” includes the qualified pension plan and the non-qualified SERP. The data listed under “other benefits” is for all other postretirement benefits.

	Three Months Ended March 31,
	Pension Plan				Other Benefits
	2024		2023		2024		2023
Service cost	$	5,648	$	6,046	$	1,520	$	1,126
Interest cost	8,881		8,746		1,684		1,297
Expected return on plan assets	(13,236)		(13,421)		(2,987)		(2,636)
Amortization of prior service cost	131		131		39		39
Recognized net actuarial (gain) loss	189		(637)		(198)		(581)
Net periodic benefit cost (credit)	$	1,613	$	865	$	58	$	(755)

Service cost portion of the pension plan and other postretirement benefits is recognized in administrative and general expenses within the Condensed Consolidated Statements of Operations. Other components of net periodic benefit costs include interest costs, expected return on plan assets, amortization of prior service costs, and recognized net actuarial loss and are reported together as other components of net periodic benefit cost within the Condensed Consolidated Statements of Operations.

Note 6. Short-term and Long-term Borrowings

On March 31, 2023, the Company and Cal Water entered into syndicated credit agreements, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $600.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company’s revolving credit facility (the Company facility). Cal Water may borrow up to $400.0 million under its revolving credit facility (the Cal Water facility). Additionally, the credit facilities may be increased by up to an incremental $150.0 million under the Cal Water facility and $50.0 million under the Company facility, subject in each case to certain conditions. At the Company’s or Cal Water’s option, as applicable, borrowings under the Company and Cal Water facilities, as applicable, will bear interest annually at a rate equal to (i) the base rate, plus an applicable margin of 0.00% to 0.250%, depending on the Company and its subsidiaries’ consolidated total capitalization ratio, or (ii) Term SOFR, plus an applicable margin of 0.800% to 1.250%, depending on the Company and its subsidiaries’ consolidated total capitalization ratio.

The Company and Cal Water facilities contain affirmative and negative covenants and events of default customary for credit facilities of this type including, among other things, limitations and prohibitions relating to additional indebtedness, liens, mergers, and asset sales. Also, the Company and Cal Water facilities contain financial covenants governing the Company and its subsidiaries’ consolidated total capitalization ratio and interest coverage ratio. As of March 31, 2024, the Company and Cal Water are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of the Company and Cal Water facilities, as applicable.

Borrowings on the Company lines of credit as of March 31, 2024 and December 31, 2023 were $65.0 million and $50.0 million, respectively. Outstanding borrowings on the Cal Water lines of credit as of March 31, 2024 and December 31, 2023 were $215.0 million and $130.0 million, respectively. The average borrowing rate for borrowings on the Company and Cal Water lines of credit during the three months ended March 31, 2024 was 6.38% compared to 5.49% for the same period last year.

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Note 7. Income Taxes

The Company adjusts its effective tax rate each quarter to be consistent with the estimated annual effective tax rate. The Company also records the tax effect of unusual or infrequently occurring discrete items.

The provision for income taxes is shown in the tables below:

	Three Months Ended March 31,
	2024		2023
Income tax (benefit) expense	$	16,859	$	(3,850)

Income tax expense increased $20.7 million to $16.9 million for the three months ended March 31, 2024 as compared to $3.9 million tax benefit for the three months ended March 31, 2023, primarily due to an increase in pre-tax operating income in the first three months ended March 31, 2024 as compared to 2023. The increase in income tax expense was primarily due to the recognition of income related to the 2021 GRC decision.

The Company’s effective tax rate was 19.6% and 14.6% before discrete items as of March 31, 2024 and March 31, 2023. The increase in the effective tax rate was primarily due to the recognition of the 2021 GRC.

The Company had unrecognized tax benefits of approximately $16.6 million and $14.0 million as of March 31, 2024 and 2023, respectively. Included in the balance of unrecognized tax benefits as of March 31, 2024 and 2023, is $5.0 million and $4.5 million, respectively, of tax benefits that, if recognized, would result in an adjustment to the Company’s effective tax rate. The Company does not expect its unrecognized tax benefits to change significantly within the next 12 months.

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Note 8. Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2024 and December 31, 2023:

	Recovery Period	March 31, 2024		December 31, 2023
Regulatory Assets
Property-related temporary differences (tax benefits flowed through to customers)	Indefinite	158,486		158,486
Other accrued benefits	Indefinite	26,975		25,363
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable	Various	10,490		10,738
Asset retirement obligations, net	Indefinite	27,495		26,686
IRMA long-term accounts receivable	1 - 2 years	84,593		3,430
MWRAM	1 year	31,066		—
Tank coating	Various	20,112		19,602
Recoverable property losses	Various	2,956		3,121
Pension Cost Balancing Account (PCBA)	Various	4,314		4,182
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	10,787		2,459
Other regulatory assets	Various	7,227		3,554
Total Regulatory Assets		$	384,501	$	257,621
Regulatory Liabilities
Cost of removal		$	456,471	$	447,356
Future tax benefits due to customers		118,051		118,051
Pension and retiree group health		102,255		88,728
Incremental cost balancing account (ICBA)		10,795		—
IRMA long-term regulatory liability		6,993		—
Health Cost Balancing Account (HCBA)		4,291		3,242
PCBA		11,220		8,972
Conservation Expense Balancing Account		1,324		1,200
Net WRAM and MCBA long-term payable		3,082		2,071
Other components of net periodic benefit cost		13,300		10,348
RSF regulatory liability		—		2,116
Other regulatory liabilities		2,122		1,633
Total Regulatory Liabilities		$	729,904	$	683,717

The IRMA regulatory asset increase was for the additional amount the Company would have billed customers in 2023 and the first quarter of 2024 had the 2021 GRC been approved on time. The IRMA regulatory liability represents additional CAP and RSF credits the Company would have provided to customers in 2023 and the first quarter of 2024 had the 2021 GRC been approved on time.

The MWRAM regulatory asset represents the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect.

The ICBA tracks differences between the authorized prices of water production costs and actual prices of water production costs. In the first quarter of 2024, the Company recorded a regulatory liability for certain service territories of $10.8 million as the authorized water production costs were higher than actual water production costs. The Company also recorded a regulatory asset for certain service territories of $1.6 million as the authorized water production costs were lower than actual water production costs. The ICBA regulatory asset is part of “Other regulatory assets” in the table above.

Short-term regulatory assets and liabilities are excluded from the above table. The short-term regulatory assets were $56.1 million as of March 31, 2024 and $64.2 million as of December 31, 2023. The short-term regulatory assets as of March 31, 2024 and December 31, 2023, primarily consisted of net WRAM and MCBA, and PCBA receivables and are included in current assets as part of regulatory balancing accounts on the Condensed Consolidated Balance Sheets.

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The short-term portion of regulatory liabilities were $16.6 million as of March 31, 2024 and $21.5 million as of December 31, 2023. The short-term regulatory liabilities as of March 31, 2024 and December 31, 2023, primarily consisted of Tax Cuts and Jobs Act regulatory liabilities and HCBA liabilities and are included in current liabilities as part of regulatory balancing accounts on the Condensed Consolidated Balance Sheets.

Note 9. Commitments and Contingencies

Commitments

The Company has long-term commitments to purchase water from water wholesalers. The Company also has operating and finance leases for water systems, offices, land easements, licenses, equipment, and other facilities. These commitments and leases are described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. 

On August 16, 2022, BVRT Utility Holding Company (BVRT), a majority owned subsidiary of Texas Water, entered into a long-term water supply agreement with the Guadalupe Blanco River Authority (GBRA) through its wholly owned subsidiary, Camino Real Utility (Camino Real). The Company has provided a limited guarantee to GBRA for agreed upon obligations. GBRA is a water conservation and reclamation district established by the Texas Legislature that oversees water resources for 10 counties. Under the terms of the agreement with GBRA, Camino Real is contracted to receive up to 2,419 acre-feet of potable water annually. The GBRA agreement involves four off-takers, including Camino Real, and GBRA plans to extend a potable water pipeline from the City of Lockhart to the City of Mustang Ridge and surrounding areas. Camino Real is contracted to be the utility service provider in this area of the Austin metropolitan region and to provide potable water, recycled water, and wastewater services to portions of the City of Mustang Ridge and surrounding areas. In 2022, Camino Real committed $21.5 million for its share of the cost of the pipeline project. In 2023, Camino Real committed an additional $22.3 million for its share of the cost of the pipeline project. As of March 31, 2024, this committed cash has not been transferred to GBRA and is classified as part of restricted cash on the Condensed Consolidated Balance Sheets. The Company currently expects the committed cash to be transferred to GBRA before the end of 2024.

Contingencies

Groundwater Contamination

The Company has undertaken litigation against third parties to recover past and future costs related to groundwater contamination in our service areas. The cost of litigation is generally expensed as incurred and any settlement is first offset against such costs. The CPUC’s general policy requires all proceeds from contamination litigation to be used first to pay transactional expenses, then to make customers whole for water treatment costs to comply with the CPUC’s water quality standards. The CPUC allows for a risk-based consideration of contamination proceeds which exceed the costs of the remediation described above and may result in some sharing of proceeds with the shareholder, determined on a case-by-case basis. The CPUC has authorized various memorandum accounts that allow the Company to track significant litigation costs and to request recovery of these costs in future filings and uses of proceeds to comply with CPUC’s general policy.

Other Legal Matters

From time to time, the Company is involved in various disputes and litigation matters that arise in the ordinary course of business. The status of each significant matter is reviewed and assessed for potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and the amount of the range of loss can be estimated, a liability is accrued for the estimated loss in accordance with the accounting standards for contingencies. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based on the best information available at the time. While the outcome of these disputes and litigation matters cannot be predicted with any certainty, management does not believe when taking into account existing reserves the ultimate resolution of these matters will materially affect the Company’s financial position, results of operations, or cash flows. As of March 31, 2024 and December 31, 2023, the Company recognized a liability of $6.9 million and $6.0 million, respectively, primarily due to potable water main leaks and other work related legal matters. The cost of litigation is expensed as incurred and any settlement is first offset against such costs. Any settlement in excess of the cost to litigate is accounted for on a case-by-case basis, dependent on the nature of the settlement.

Note 10. Fair Value of Financial Assets and Liabilities

The accounting guidance for fair value measurements and disclosures provides a single definition of fair value and requires certain disclosures about assets and liabilities measured at fair value. A hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value is established by this guidance. The three levels in the hierarchy are as follows:

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Level 1—Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2—Inputs to the valuation methodology include:

•Quoted market prices for similar assets or liabilities in active markets;

•Quoted prices for identical or similar assets or liabilities in inactive markets;

•Inputs other than quoted prices that are observable for the asset or liability; and

•Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the level 2 input must be observable for substantially the full term of the asset or liability.

Level 3—Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

Specific valuation methods include the following:

Cash, accounts receivable, short-term borrowings, and accounts payable carrying amounts approximated the fair value because of the short-term maturity of the instruments.

Pension and other postretirement benefit plan assets are measured at either net asset value or level 1 depending on the investment.

Long-term debt fair values were estimated using the published quoted market price, if available, or the discounted cash flow analysis, based on the current rates available using a risk-free rate (a U.S. Treasury securities yield curve) plus a risk premium of 0.60%.

	March 31, 2024
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,053,275	$	—	$	939,102	$	—	$	939,102

	December 31, 2023
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,053,440	$	—	$	965,444	$	—	$	965,444

Note 11. Subsequent Event

California Extended Water and Wastewater Arrearages Payment Program

The California Water and Wastewater Arrearages Payment Program was created by the California Legislature to be administered by the Water Board in order to provide relief to community water and wastewater systems for unpaid bills (arrearages) related to the COVID-19 pandemic.

In 2023, the Extended Program was established and extended the relief period to include arrearages accrued from June 16, 2021 to December 31, 2022. In response to the Extended Program, Cal Water submitted an application for $82.0 million in eligible customer arrearages and $1.0 million in program administrative costs which was approved by the Water Board. Cal Water received the funds in April of 2024 and intends to apply the funds to identified eligible past due customer balances during the second quarter of 2024.

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Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
(Dollar amounts in thousands unless otherwise stated)

FORWARD-LOOKING STATEMENTS

This quarterly report, including all documents incorporated by reference, contains forward-looking statements within the meaning established by the Private Securities Litigation Reform Act of 1995 (the PSLRA). The forward-looking statements are intended to qualify under provisions of the federal securities laws for “safe harbor” treatment established by the PSLRA. Forward-looking statements in this quarterly report are based on currently available information, expectations, estimates, assumptions and projections, and our management’s beliefs, assumptions, judgments and expectations about us, the water utility industry and general economic conditions. These statements are not statements of historical fact. When used in our documents, statements that are not historical in nature, including words like “will,” “would,” “expects,” “intends,” “plans,” “believes,” “may,” “could,” “estimates,” “assumes,” “anticipates,” “projects,” “progress,” “predicts,” “hopes,” “targets,” “forecasts,” “should,” “seeks,” “indicates,” or variations of these words or similar expressions are intended to identify forward-looking statements. Examples of forward-looking statements in this quarterly report include, but are not limited to, statements describing our intention, indication or expectation regarding dividends or targeted payout ratio, our expectations, anticipations or beliefs regarding governmental, legislative, judicial, administrative or regulatory timelines, regulatory compliance, decisions, approvals, authorizations, requirements or other actions, rate amounts or cost recovery, certain polyfluoroalkyl substances (PFAS) regulations, and associated impacts, such as our expected or estimated revenue, expectations regarding regulatory asset and operating revenue recognition, sources of funding or capital requirements, estimates of, or expectations regarding, capital expenditures, funding needs or other capital requirements, obligations, contingencies or commitments, our expectations regarding water sources, our beliefs regarding adequacy of water supplies, estimates relating to our significant accounting policies, such as deferred revenue or assets or refund of advances, our expectations regarding stock-based compensation and estimated contributions to our pension plans and other postretirement benefit plans, our estimated annual effective tax rate and expectations regarding tax benefits, our intentions regarding application of funds for identified eligible past due customer balances and use of net proceeds from any future equity or debt issuances or borrowings or our intentions or anticipations regarding our sources of funding, capital structure or capital allocation plans. The forward-looking statements are not guarantees of future performance. They are based on numerous assumptions that we believe are reasonable, but they are open to a wide range of uncertainties and business risks. Consequently, actual results may vary materially from what is contained in a forward-looking statement.

Factors which may cause actual results to be different than those expected or anticipated include, but are not limited to:

•the outcome and timeliness of regulatory commissions’ actions concerning rate relief and other matters;

•changes in regulatory commissions’ policies and procedures, such as the California Public Utilities Commission (CPUC)’s decision in 2020 to preclude companies from proposing fully decoupled Water Revenue Adjustment Mechanisms (WRAM) (which impacted Cal Water’s most recent general rate case (GRC) filing in July 2021 (2021 GRC);

•our ability to invest or apply the proceeds from the issuance of common stock in an accretive manner;

•governmental and regulatory commissions’ decisions, including decisions on proper disposition of property;

•consequences of eminent domain actions relating to our water systems;

•increased risk of inverse condemnation losses as a result of climate change and drought;

•changes in California State Water Resources Control Board (Water Board) water quality standards;

•changes in environmental compliance and water quality requirements;

•electric power interruptions, especially as a result of Public Safety Power Shutoff programs;

•availability of water supplies;

•housing and customer growth;

•the impact of opposition to rate increases;

•our ability to recover costs;

•our ability to renew leases to operate water systems owned by others on beneficial terms;

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•issues with the implementation, maintenance or security of our information technology systems;

•civil disturbances or terrorist threats or acts;

•the adequacy of our efforts to mitigate physical and cyber security risks and threats;

•the ability of our enterprise risk management processes to identify or address risks adequately;

•labor relations matters as we negotiate with the unions;

•changes in customer water use patterns and the effects of conservation, including as a result of drought conditions;

•our ability to complete, in a timely manner or at all, successfully integrate, and achieve anticipated benefits from announced acquisitions;

•the impact of weather, climate change, natural disasters, and actual or threatened public health emergencies, including disease outbreaks, on our operations, water quality, water availability, water sales and operating results and the adequacy of our emergency preparedness;

•restrictive covenants in or changes to the credit ratings on our current or future debt that could increase our financing costs or affect our ability to borrow, make payments on debt or pay dividends;

•risks associated with expanding our business and operations geographically;

•the impact of stagnating or worsening business and economic conditions, including inflationary pressures, general economic slowdown or a recession, increasing interest rates, instability of certain financial institutions, changes in monetary policy, adverse capital markets activity or macroeconomic conditions as a result of geopolitical conflicts, and the prospect of a shutdown of the U.S. federal government;

•the impact of market conditions and volatility on unrealized gains or losses on our non-qualified benefit plan investments and our operating results;

•the impact of weather and timing of meter reads on our accrued unbilled revenue;

•the impact of evolving legal and regulatory requirements, including emerging environmental, social and governance requirements; and

•the risks set forth in “Risk Factors” included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023.

In light of these risks, uncertainties and assumptions, investors are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date of this quarterly report or as of the date of any document incorporated by reference in this quarterly report, as applicable. When considering forward-looking statements, investors should keep in mind the cautionary statements in this quarterly report and the documents incorporated by reference. We are not under any obligation, and we expressly disclaim any obligation, to update or alter any forward-looking statements, whether as a result of new information, future events or otherwise.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

We maintain our accounting records in accordance with GAAP and as directed by the Commissions to which our operations are subject. The process of preparing financial statements in accordance with GAAP requires the use of estimates on the part of management. The estimates used by management are based on historic experience and an understanding of current facts and circumstances. Management believes that the following accounting policies are critical because they involve a higher degree of complexity and judgment, and can have a material impact on our results of operations, financial condition, and cash flows of the business. These policies and their key characteristics are discussed in detail in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 (2023 Annual Report on Form 10-K). They include:

•revenue recognition;

•regulated utility accounting;

•income taxes; and

•pension, which includes supplemental executive retirement plan (SERP), and postretirement health care benefits.

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For the three months ended March 31, 2024, besides the change noted below there were no other changes in the methodology for computing critical accounting estimates, no additional accounting estimates met the standards for critical accounting policies, and there were no material changes to the important assumptions underlying the critical accounting estimates.

Pension

As of the first quarter of 2024, we believe it is not probable that future SERP costs will be recovered in future rates for Cal Water at least for the period in which the 2021 GRC is in effect as the 2021 GRC does not allow for SERP expenses to be recovered from customers. As of March 31, 2024, we have reclassified our SERP regulatory asset for Cal Water and recorded accumulated other comprehensive loss in accordance with generally accepted accounting principles.

CALIFORNIA EXTENDED WATER AND WASTEWATER ARREARAGES PAYMENT PROGRAM

The California Water and Wastewater Arrearages Payment Program was created by the California Legislature to be administered by the Water Board in order to provide relief to community water and wastewater systems for unpaid bills (arrearages) related to the COVID-19 pandemic.

In 2023, the California Extended Water and Wastewater Arrearages Payment Program was established and extended the relief period to include arrearages accrued from June 16, 2021 to December 31, 2022. In response to the extended program, Cal Water submitted an application for $82.0 million in eligible customer arrearages and $1.0 million in program administrative costs which was approved by the Water Board. Cal Water received the funds in April of 2024 and intends to apply the funds to identified eligible past due customer balances during the second quarter of 2024.

RESULTS OF OPERATIONS

Overview

Net Income Attributable to California Water Service Group

Net income attributable to California Water Service Group for the three months ended March 31, 2024 was $69.9 million or $1.21 earnings per diluted common share, compared to net loss of $22.2 million or $0.40 loss per diluted common share for the three months ended March 31, 2023. The results for the three months ended March 31, 2024, include a cumulative adjustment for the impacts of the 2021 GRC, retroactive to January 1, 2023 as described below.

The $92.1 million increase in net income was primarily due to an increase in operating revenue of $139.6 million partially offset by an increase in total operating expenses of $44.2 million. The total operating expense increase was primarily due to an increase in water production costs of $9.2 million, increases in other operations expenses of $10.3 million, an increase in income tax expense of $21.2 million, and an increase in depreciation and amortization expenses of $2.9 million.

Operating Revenue

Operating revenue increased $139.6 million, or 106.5%, to $270.7 million for the three months ended March 31, 2024 as compared to the three months ended March 31, 2023, primarily as a result of the adoption of the 2021 GRC decision, which increased revenue $111.8 million, including $87.9 million in interim rate relief attributable to 2023. The sources of the change in operating revenue were:

Net change due to rate changes, usage, and other (1)	$	13,986
Interim Rates Memorandum Account (IRMA) revenue (2)	80,664
Monterey-Style Water Revenue Adjustment Mechanism (MWRAM) revenue (3)	31,066
Deferral of revenue (4)	13,933
Net operating revenue increase	$	139,649

1.The net change due to rate changes, usage, and other in the above table was primarily driven by rate increases of $12.0 million.

2.Due to the delay in the resolution of the 2021 GRC, the CPUC authorized Cal Water to track in an IRMA the variances between actual customer billings and those that would have been billed assuming the 2021 GRC had been effective January 1, 2023. Such variances are recorded as regulatory balancing account revenue. The 2021 GRC was approved in March of 2024 and final rates for the 2021 GRC were not implemented as of March 31, 2024; as a result, Cal Water recorded IRMA revenue of $80.7 million of which $70.3 million is attributable to 2023.

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3.MWRAM revenue is the variance between actual metered sales billed through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. In March of 2024, Cal Water received approval of the 2021 GRC which authorized the use of the MWRAM effective January 1, 2023; as a result, in the first quarter of 2024, we recorded MWRAM revenue of $31.1 million of which $17.6 million is attributable to 2023.

4.The deferral of revenue consists of amounts that are expected to be collected from customers beyond 24 months following the end of the accounting period in which these revenues were recorded. Deferred revenue in 2024 decreased as we expect to apply funds from the California Extended Water and Wastewater Arrearages Payment Program against certain WRAM receivables.

Total Operating Expenses

Total operating expenses increased $44.2 million, or 29.8%, to $192.9 million for the three months ended March 31, 2024, as compared to $148.6 million for the three months ended March 31, 2023.

Water production costs consists of purchased water, purchased power, and pump taxes. It represents the largest component of total operating expenses, accounting for approximately 33.3% of total operating expenses for the three months ended March 31, 2024 as compared to 37.0% of total operating expenses for the three months ended March 31, 2023. Water production costs increased $9.2 million, or 16.7%, for the three months ended March 31, 2024 as compared to the same period last year primarily due to recording a cumulative adjustment of $9.2 million for the impacts of the 2021 GRC. For the three months ended March 31, 2024, we recorded $7.0 million of water production costs for the Incremental Cost Balancing Accounts (ICBA) attributable to fiscal year 2023.

Sources of water as a percent of total water production are listed in the following table:

	Three Months Ended March 31,
	2024		2023
Well production	54	%	48	%
Purchased	45	%	49	%
Surface	1	%	3	%
Total	100	%	100	%

The components of water production costs are shown in the table below:

	Three Months Ended March 31,
	2024		2023		Change
Purchased water	$	40,227	$	42,738	$	(2,511)
Purchased power	10,032		8,390		1,642
Pump taxes	5,047		3,880		1,167
ICBA	8,879		—		8,879
Total	$	64,185	$	55,008	$	9,177

Other operations expenses increased $10.3 million, or 62.2%, to $26.9 million for the three months ended March 31, 2024, as compared to $16.6 million for the three months ended March 31, 2023. The increase was primarily due to a decrease in deferred costs associated with deferred revenue of $11.4 million (see deferral of revenue above).

Depreciation and amortization expense increased $2.9 million, or 9.8%, to $32.8 million for the three months ended March 31, 2024, as compared to $29.9 million for the three months ended March 31, 2023, primarily due to utility plant placed in service in 2023.

Income tax expense increased $21.1 million to $15.5 million for the three months ended March 31, 2024, as compared to income tax benefit of $5.6 million for the three months ended March 31, 2023. The increase in income tax expense was primarily due to an increase in the pre-tax operating income for the three months ended March 31, 2024 as compared to the same period of 2023 due to higher pre-tax operating income.

Property and other taxes increased $1.0 million to $9.8 million for the three months ended March 31, 2024, as compared to $8.8 million in the same period of 2023, primarily due to an increase in assessed property values.

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Interest Expense

Net interest expense increased $3.0 million, or 25.4%, to $15.0 million for the three months ended March 31, 2024, as compared to $12.0 million for the three months ended March 31, 2023. The increase was due primarily to an increase in short-term borrowing rates and higher outstanding line of credit balances.

REGULATORY MATTERS

California Regulatory Activity

2021 GRC

The CPUC approved a decision on March 7, 2024 on the 2021 GRC. The decision marked the end of an extensive review of Cal Water’s water system improvement plans, costs, and rates. The decision as issued adopts a revised version of the alternate proposed decision issued January 24, 2024, and increases adopted revenues, after corrections, for 2023 by approximately $41.5 million retroactive to January 1, 2023. It also potentially increases revenues by up to approximately $30.0 million for 2024 and $30.6 million for 2025, subject to the CPUC’s earnings test and inflationary adjustments.

The decision authorizes Cal Water to invest approximately $1.2 billion from 2021 through 2024 in water system infrastructure projects that we believe are needed to continue providing safe, reliable water service to customers throughout California. This includes approximately $160 million of infrastructure projects that may be submitted for recovery via the CPUC’s advice letter process.

The CPUC’s decision approves a progressive rate design that is intended to provide budget stability while benefiting low-income and low-water-using customers by significantly decreasing the cost of the first six units of water consumed and increasing the percentage of fixed costs that are recovered in the service charge.

On March 15, 2024, Cal Water submitted a request for expedited corrections in the March 7th decision. The decision and its appendices contain certain language, numbers, and calculations that are inconsistent or do not fully reflect the substantive outcomes described in the approved decision. On April 23, 2024, the executive director of the CPUC issued a decision approving the corrections.

On April 1, 2024, Cal Water submitted an advice letter requesting an increase in annual revenue of $42.5 million for all of its rate making areas (besides Grand Oaks) effective May 1, 2024. The advice letter includes the effects of the expense offsets of $4.7 million and cost of capital filing of $11.4 million that were implemented on January 1, 2024 as well as $5.8 million in rate base offsets that will be effective on May 1, 2024. The remaining $20.6 million increase is primarily due to escalations. If the advice letter is approved, Cal Water expects to implement the new rates incorporating all these items on May 31, 2024.

2021 GRC IRMA

The 2021 GRC was approved in March of 2024 and final rates for the 2021 GRC were not implemented as of March 31, 2024; as a result, Cal Water calculated and recorded a regulatory asset of $80.7 million and a corresponding increase to revenue for the difference between final rates and interim rates for all of 2023 and the first three months of 2024. Cal Water also recorded a regulatory liability of $7.0 million and a corresponding increase to regulatory assets for Customer Assistance Program (CAP) and Rate Support Fund (RSF) program credits that would have been given to customers had the rate case been approved on time.

The IRMA will remain open until the new rates from the 2021 GRC decision are implemented.

Rate Base Offset Requests

For construction projects authorized in GRCs as advice letter projects, Cal Water is allowed to request rate base offsets to increase revenues after the project goes into service. In March of 2024, Cal Water submitted a $39.1 million rate base offset advice letter to recover $5.8 million of annual revenue increases in all of its regulated districts. The new rates are expected to be implemented on May 31, 2024 as discussed above.

Polyfluoroalkyl Substances Memorandum Account (PFAS MA)

On April 18, 2024, the CPUC dismissed Cal Water’s application requesting authorization to modify a previously approved PFAS-expense memorandum account to include capital investments related to PFAS compliance for future recovery. The

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dismissal does not preclude Cal Water from seeking regulatory recovery for the capital investments. Cal Water may seek recovery through a separate application, a GRC application, or a tier 3 advice letter.

Application for Rehearing for the WRAM

The CPUC issued a decision effective August 27, 2020 requiring that Class A companies submitting GRC filings after the effective date be precluded from proposing the use of a full decoupling WRAM in their next GRCs. In September 2020, Cal Water filed an Application for Rehearing at the CPUC seeking to reverse the August 27, 2020 CPUC decision. In September 2021, the CPUC denied the Application for Rehearing. On or about October 27, 2021, Cal Water along with four other Class A California water utilities filed Petitions for a Writ of Review with the California Supreme Court (Court). On May 18, 2022, the Court issued writs granting review and ordered the CPUC and other filing parties to submit additional pleadings to the Court. The final pleadings were submitted on January 13, 2023. On April 18, 2024, the Court set oral argument for May 8, 2024, and it is anticipated that the Court will issue a decision before the end of the year.

LIQUIDITY

Cash Flow from Operating Activities

During the three months ended March 31, 2024, we generated cash flow from operations of $26.5 million compared to $21.0 million for the same period in 2023. Cash generated by operations varies during the year due to customer billings, and timing of collections and contributions to our benefit plans.

During the three months ended March 31, 2024, we did not make any cash contributions to our employee pension plan nor our other postretirement benefit plans. During the three months ended March 31, 2023, we made cash contributions of $2.9 and $0.2 million, respectively, to our pension plans and to our other postretirement benefit plans. The 2024 estimated cash contribution to the pension plans and other postretirement benefits plans are expected to be approximately $0.7 million and $0.2 million, respectively.

The water business is seasonal. Billed revenue is lower in the cool, wet winter months when less water is used compared to the warm, dry summer months when water use is highest. This seasonality results in the possible need for short-term borrowings under the bank lines of credit in the event cash is not sufficient to cover operating costs during the winter period. The increase in cash flow during the summer allows for a pay down of short-term borrowings. Customer water usage can be lower than normal in years when more than normal precipitation falls in our service areas or temperatures are lower than normal, especially in the summer months. The reduction in water usage reduces cash flow from operations and increases the need for short-term bank borrowings.

Cash Flow from Investing Activities

During the three months ended March 31, 2024 and 2023, we used $109.8 million and $82.0 million, respectively, of cash for Company-funded and developer-funded utility capital expenditures. Cash used in investing activities fluctuates each year largely due to the availability of construction resources and our ability to obtain construction permits in a timely manner. For 2024, our utility capital expenditures are estimated to be $365.0 million.

Cash Flow from Financing Activities

Net cash provided by financing activities for the three months ended March 31, 2024 was $86.6 million compared to $62.5 million for the same period in 2023. For 2024, this includes our issuance of $0.8 million of Company common stock through our employee stock purchase plan. For 2023, this includes our issuance of $18.2 million of Company common stock through our at-the-market equity program and $0.6 million through our employee stock purchase plan.

During the three months ended March 31, 2024 and 2023, we borrowed $170.0 million and $95.0 million, respectively, on our unsecured revolving credit facilities. We made repayments on our unsecured revolving credit facilities of $70.0 million and $35.0 million during the three months ended March 31, 2024 and 2023, respectively. During the first three months of 2023, we also paid $1.6 million in issuance costs for the Company and Cal Water facilities entered into on March 31, 2023.

On March 31, 2023, the Company and Cal Water entered into the Company and Cal Water credit facilities, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $600.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company’s revolving credit facility (the Company facility). Cal Water may borrow up to $400.0 million under the Cal Water revolving credit facility (the Cal Water facility). Additionally, the credit facilities may be increased by up to an incremental $150.0 million under the Cal Water facility and $50.0 million under the Company facility, subject in each case to certain conditions.

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The net WRAM and Modified Cost Balancing Account receivable balances were $57.9 million and $100.3 million as of March 31, 2024 and 2023, respectively. There also was an MWRAM receivable balance of $31.1 million as of March 31, 2024. The receivable balances were primarily financed by Cal Water using short-term and long-term financing arrangements to meet operational cash requirements. Interest on the receivable balances, which represents the interest recoverable from customers, is limited to the then-current 90-day commercial paper rates, which typically are significantly lower than Cal Water’s short and long-term financing rates.

Short-term and Long-term Financing

During the three months ended March 31, 2024, we utilized cash generated from operations and temporary borrowings on our previous unsecured revolving credit facilities to fund operations and capital investments.

In future periods, management anticipates funding our utility plant needs through a balance of long term debt and equity.

Short-term liquidity is provided by the Company and Cal Water facilities and internally generated funds. Long-term financing is accomplished through the use of both debt and equity. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company facility. Cal Water may borrow up to $400.0 million under the Cal Water facility; however, all borrowings must be repaid within 12 months unless a different period is required or authorized by the CPUC. The proceeds from the Company and Cal Water facilities may be used for working capital purposes.

As of March 31, 2024 and December 31, 2023, short-term borrowings of $280.0 million and $180.0 million, respectively, were outstanding on the Company and Cal Water facilities.

Given our ability to access our lines of credit on a daily basis, cash balances are managed to levels required for daily cash needs and excess cash is invested in short-term or cash equivalent instruments. Minimal operating levels of unrestricted cash are maintained for Washington Water, New Mexico Water, Hawaii Water and Texas Water.

The Company and Cal Water facilities contain affirmative and negative covenants and events of default customary for credit facilities of this type including, among other things, limitations and prohibitions relating to additional indebtedness, liens, mergers, and asset sales. Also, the Company and Cal Water facilities contain financial covenants that require the Company and its subsidiaries’ consolidated total capitalization ratio not to exceed 66.7% and an interest coverage ratio of three or more. As of March 31, 2024, we are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of the Company and Cal Water facilities.

Long-term financing, which includes First Mortgage Bonds, other debt securities, and common stock, has typically been used to replace short-term borrowings and fund utility plant expenditures. Internally generated funds, after making dividend payments, provide positive cash flow, but have not been at a level to meet the needs of our utility plant expenditure requirements. Management expects this trend to continue given our planned utility plant expenditures for the next five years. Some utility plant expenditures are funded by payments received from developers for contributions in aid of construction or advances for construction. Funds received for contributions in aid of construction are non-refundable, whereas funds classified as advances for construction are generally refundable over 40 years. Management believes long-term financing is available to meet our cash flow needs through issuances of both debt and equity instruments.

Summarized Financial Information for Guarantors and the Issuer of Guaranteed Securities

On April 17, 2009, Cal Water (Issuer) issued $100.0 million aggregate principal amount of 5.500% First Mortgage Bonds due 2040, all of which are fully and unconditionally guaranteed by the Company (Guarantor). Certain subsidiaries of the Company do not guarantee the security and are referred to as Non-guarantors. The Guarantor fully, absolutely, irrevocably and unconditionally guarantees the punctual payment when due, whether at stated maturity, by acceleration, by notice of prepayment or otherwise, of the principal, premium, if any, and interest on the bonds. The bonds rank equally among Cal Water’s other First Mortgage Bonds.

The following tables present summarized financial information of the Issuer subsidiary and the Guarantor. The information presented below excludes eliminations necessary to arrive at the information on a consolidated basis. In presenting the summarized financial statements, the equity method of accounting has been applied to the Guarantor interests in the Issuer. The summarized information excludes financial information of the Non-guarantors, including earnings from and investments in these entities.

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Summarized Statement of Operations
(in thousands)	Three Months Ended March 31, 2024				Twelve Months Ended December 31, 2023
	Issuer		Guarantor		Issuer		Guarantor
Net sales	$	253,439	$	—	$	720,577	$	—
Gross profit	$	193,604	$	—	$	449,221	$	—
Income from operations	$	81,266	$	257	$	82,157	$	590
Equity in earnings of guarantor	$	—	$	69,002	$	—	$	49,998
Net income	$	73,579	$	69,690	$	57,168	$	51,376

Summarized Balance Sheet Information
(in thousands)	As of March 31, 2024				As of December 31, 2023
	Issuer		Guarantor		Issuer		Guarantor
Current assets	$	196,749	$	9,568	$	213,469	$	10,126
Intercompany receivable from Non-guarantors	$	3,436	$	53,618	$	3,664	$	44,882
Other assets	$	603,153	$	1,247,621	$	479,642	$	1,190,076
Long-term intercompany receivable from Non-issuers	$	—	$	85,678	$	—	$	82,610
Net utility plant	$	3,554,567	$	—	$	3,487,788	$	—
Total assets	$	4,357,905	$	1,396,485	$	4,184,563	$	1,327,694
Current liabilities	$	413,610	$	67,778	$	351,964	$	53,069
Intercompany payable to Non-guarantors and Guarantor	$	114	$	—	$	—	$	—
Long-term debt	$	1,051,952	$	—	$	1,052,350	$	—
Other liabilities	$	1,663,456	$	3,335	$	1,595,852	$	3,068
Total Liabilities	$	3,129,132	$	71,113	$	3,000,166	$	56,137

Dividends

During the three months ended March 31, 2024, our quarterly common stock dividend payments were $0.28 per share compared to $0.26 per share for the three months ended March 31, 2023. For the full year 2023, the payout ratio was 113.8% of net income. On a long-term basis, our goal is to achieve a dividend payout ratio of 60% of net income.

At the April 24, 2024 meeting, the Company’s Board of Directors declared the second quarter dividend of $0.28 per share payable on May 17, 2024, to stockholders of record on May 6, 2024. This was our 317th consecutive quarterly dividend.

2024 Financing Plan

We intend to fund our utility plant needs in future periods through a relatively balanced approach between long-term debt and equity. The Company and Cal Water have a syndicated unsecured revolving line of credit of $200.0 million and $400.0 million, respectively, for short-term borrowings. As of March 31, 2024, the Company’s and Cal Water’s availability on these unsecured revolving lines of credit was $135.0 million and $185.0 million, respectively.

Book Value and Stockholders of Record

Book value per common share was $25.41 at March 31, 2024 compared to $24.72 at December 31, 2023. There were approximately 1,767 stockholders of record for our common stock as of February 12, 2024. 

Utility Plant Expenditures

During the three months ended March 31, 2024, utility plant expenditures totaled $109.8 million for Company-funded and developer-funded projects. For 2024, we estimate utility capital expenditures to be $365.0 million.

As of March 31, 2024, construction work in progress was $321.4 million. Construction work in progress includes projects that are under construction but not yet complete and placed in service.

WATER SUPPLY

Our source of supply varies among our operating districts. Certain districts obtain all of their supply from wells; some districts purchase all of their supply from wholesale suppliers; and other districts obtain supply from a combination of

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wells and wholesale suppliers. A small portion of supply comes from surface sources and is processed through Company-owned water treatment plants. To the best of management’s knowledge, we are meeting water quality, environmental, and other regulatory standards for all Company-owned systems.

Historically, approximately half of our annual water supply is pumped from wells. State groundwater management agencies operate differently in each state. Some of our wells extract ground water from water basins under state ordinances. These are adjudicated groundwater basins, in which a court has settled the dispute between landowners, or other parties over how much annual groundwater can be extracted by each party. All of our adjudicated groundwater basins are located in the State of California. Our average annual groundwater extraction from adjudicated groundwater basins approximates 6.7 billion gallons or 13.1% of our total average annual (2022-2023) water supply pumped from wells. Historically, we have extracted less than 100% of our annual adjudicated groundwater rights and have the right to carry forward up to 20% of the unused amount to the next annual period. All of our remaining wells extract ground water from managed or unmanaged water basins. There are no set limits for the ground water extracted from these water basins. Our average annual groundwater extraction from managed groundwater basins approximates 29.7 billion gallons or 57.6% of our total average annual water supply pumped from wells. Our average annual groundwater extraction from unmanaged groundwater basins approximates 15.1 billion gallons or 29.3% of our total average annual water supply pumped from wells. Many managed groundwater basins we extract water from have groundwater recharge facilities for which we financially support the recharge activities by paying well pump taxes. For the three months ended March 31, 2024 and 2023, our well pump taxes were $5.0 million and $3.9 million, respectively. In 2014, the State of California enacted the Sustainable Groundwater Management Act of 2014 (SGMA). The law and its implementing regulations required most basins to create a sustainability agency by 2017, develop a sustainability plan by the end of 2022, and show progress toward sustainability by 2027. We expect that after the SGMA provisions are fully implemented, all the Company’s California groundwater will be produced from sustainably managed and/or adjudicated basins.

California’s normal weather pattern yields little precipitation between mid-spring and mid-fall. The Washington Water service areas receive precipitation in all seasons, with the heaviest amounts during the winter. New Mexico Water's rainfall is heaviest in the summer monsoon season. Hawaii Water receives precipitation throughout the year, with the largest amounts in the winter months. Typically, water usage in all service areas is highest during the warm and dry summers and declines in the cool winter months. Rain and snow during the winter months in California replenish underground water aquifers and fill reservoirs, providing the water supply for subsequent delivery to customers. As of April 9, 2024, the State of California snowpack water content for the 2023-2024 water year was 127% of long-term averages (per the California Department of Water Resources, Northern Sierra Precipitation Accumulation report). The northern Sierra region is the most important for the state’s urban water supplies. The central and southern portions of the Sierras have recorded 113% and 107%, respectively, of long-term averages. Management believes that supply pumped from underground aquifers and purchased from wholesale suppliers will be adequate to meet customer demand during 2024 and thereafter. Long-term water supply plans are developed for each of our districts to help assure an adequate water supply under various operating and supply conditions. Some districts have unique challenges in meeting water quality standards, but management believes that supplies will meet current standards using currently available treatment processes.

On May 31, 2018, California’s Governor signed two bills (Assembly Bill 1668 and Senate Bill 606) into law that were intended to establish long-term standards for water use efficiency. The bills revise and expand the existing urban water management plan requirements to include five-year drought risk assessments, water shortage contingency plans, and annual water supply/demand assessments. The Water Board, in conjunction with the California Department of Water Resources, is expected to establish long-term water use standards for indoor residential use, outdoor residential use, water losses, and other uses. Cal Water will also be required to calculate and report on urban water use targets by November 1 of each year, that compares actual urban water use to the targets. Management believes that Cal Water is well positioned to comply with all such regulations.

In April of 2024, the U.S. Environmental Protection Agency (EPA) finalized a National Primary Drinking Water Regulation establishing legally enforceable levels for six PFAS in drinking water. Under the PFAS regulation, water utilities with impacted water systems across the country are required to monitor for these PFAS by 2027 and to comply with the Maximum Contaminant Levels (MCL) by 2029. We estimate a capital investment of approximately $215.0 million will be required to comply with the regulation.

On April 17, 2024, the Water Board adopted a new MCL of 10 parts per billion for Chromium-6 in drinking water. Our water systems in California will be required to comply with the regulation within two to four years. We developed and installed treatment for this contaminant at most of our impacted water sources when the same MCL, which was subsequently vacated for administrative reasons, was originally set in 2014. After the MCL was vacated, we continued to treat our impacted water systems. We anticipate installing treatment for the remaining sites before the regulatory deadline.

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CONTRACTUAL OBLIGATIONS

During the three months ended March 31, 2024, there were no material changes in contractual obligations outside the normal course of business.

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

We do not hold, trade in or issue derivative financial instruments and therefore are not exposed to risks these instruments present. Our market risk to interest rate exposure is limited because the cost of long-term financing and short-term bank borrowings, including interest costs, is covered in consumer water rates as approved by the Commissions. We do not have foreign operations; therefore, we do not have a foreign currency exchange risk. Our business is sensitive to commodity prices and is most affected by changes in purchased water and purchased power costs.

Historically, the CPUC’s balancing account or offsettable expense procedures allowed for increases in purchased water, pump tax, and purchased power costs to be flowed through to consumers. A significant percentage of our net income and cash flows come from California regulated operations; therefore the CPUC’s actions have a significant impact on our business. See Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Regulatory Matters.”

Item 4. CONTROLS AND PROCEDURES

(a) Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended) that are designed to ensure that information required to be disclosed in our reports filed or submitted under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission's rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow for timely decisions regarding required disclosure.

In designing and evaluating the disclosure controls and procedures, management, including the Chief Executive Officer and Chief Financial Officer, recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management is required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Accordingly, our disclosure controls and procedures have been designed to provide reasonable assurance of achieving their objectives.

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures as of March 31, 2024 and concluded that our disclosure controls and procedures were effective at the reasonable assurance level.

(b) Changes to Internal Control over Financial Reporting

There have been no changes in our internal control over financial reporting during the first quarter of 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II—OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS 

From time to time, the Company is involved in various disputes and litigation matters that arise in the ordinary course of business. The status of each significant matter is reviewed and assessed for potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and the amount of the range of loss can be reasonably estimated, a liability is accrued for the estimated loss in accordance with the accounting standards for contingencies. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based on the best information available at the time. While the outcome of these disputes and litigation matters cannot be predicted with any certainty, management does not believe when taking into account existing reserves the ultimate resolution of these matters will materially affect the Company’s financial position, results of operations, or cash flows. In the future, we may be involved in disputes and litigation related to a wide range of matters, including employment, construction, environmental issues and operations. Litigation can be time-consuming and expensive and could divert management’s time and attention from our business. In addition, if we are subject to new lawsuits or disputes, we might incur significant legal costs and it is uncertain whether we would be able to recover the legal costs from customers or other third parties. Please refer to Note 9, “Commitments and Contingencies” for more information.

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Item 1A. RISK FACTORS

There have been no material changes to the Company’s risk factors set forth in Part I, Item 1A of the Company’s Annual Report on Form 10-K for the year-ended December 31, 2023 filed with the SEC on February 29, 2024.

Item 5. OTHER INFORMATION

(c) Trading Plans

During the last fiscal quarter, no director or Section 16 officer of the Company adopted or terminated any Rule 10b5-1 or non-Rule 10b5-1 trading arrangement (as defined under SEC rules).

Item 6. EXHIBITS

Exhibit Number	Description
3.1	Certificate of Incorporation of California Water Service Group (Exhibit 3.1 to the Quarterly Report on Form 10-Q filed August 9, 2006)
3.2	Certificate of Amendment to Certificate of Incorporation of California Water Service Group (Exhibit 3.1 to the Current Report on Form 8-K filed June 10, 2011)
3.3	Certificate of Amendment to Amended Certificate of Incorporation of California Water Service Group (Exhibit 3.3 to the Quarterly Report on Form 10-Q filed July 28, 2022)
3.4	Certificate of Amendment to Amended Certificate of Incorporation of California Water Service Group (Exhibit 3.4 to the Quarterly Report on Form 10-Q filed July 27, 2023)
3.5	Amended and Restated Bylaws of California Water Service Group, as amended on February 28, 2024 (Exhibit 3.5 to the Annual Report on Form 10-K filed February 29, 2024)
4.0	The Company agrees to furnish upon request to the Securities and Exchange Commission a copy of each instrument defining the rights of holders of long-term debt of the Company.
31.1	Chief Executive Officer certification of financial statements pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Chief Financial Officer certification of financial statements pursuant to Section 302 of the Sarbanes- Oxley Act of 2002
32	Chief Executive Officer and Chief Financial Officer Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	The following materials from this Quarterly Report on Form 10-Q formatted in iXBRL (Inline eXtensible Business Reporting Language): (i) Condensed Consolidated Balance Sheets, (ii) Condensed Consolidated Statements of Operations, (iii) Condensed Consolidated Statements of Cash Flows, (iv) the Notes to the Condensed Consolidated Financial Statements, and (v) Part II, Item 5(c).
104	The cover page from this Quarterly Report on Form 10-Q formatted in iXBRL (included as Exhibit 101)

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SIGNATURE

Pursuant to the requirement 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.

	CALIFORNIA WATER SERVICE GROUP
	Registrant
April 25, 2024	By:	/s/ James P. Lynch
		James P. Lynch
		Senior Vice President, Chief Financial Officer and Treasurer
		(Principal Financial Officer)

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EX-31.1

Exhibit 31.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, Martin A. Kropelnicki, certify that:

1.        I have reviewed this quarterly report on Form 10-Q for the quarter ended March 31, 2024, of California Water Service Group;

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(s) 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(s) 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 the registrant’s board of directors (or persons performing the equivalent functions):

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: April 25, 2024	By:	/s/ Martin A. Kropelnicki
		MARTIN A. KROPELNICKI
		Chairman, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF

THE SARBANES-OXLEY ACT OF 2002

I, James P. Lynch, certify that:

1.        I have reviewed this quarterly report on Form 10-Q for the quarter ended March 31, 2024, of California Water Service Group;

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(s) 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(s) 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 the registrant’s board of directors (or persons performing the equivalent functions):

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: April 25, 2024	By:	/s/ James P. Lynch
		JAMES P. LYNCH
		Senior Vice President, Chief Financial Officer and Treasurer
		(Principal Financial Officer)

EX-32.0

Exhibit 32

CERTIFICATION OF CEO AND CFO

PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned certifies that this quarterly report on Form 10-Q for the period ended March 31, 2024 fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 and that the information contained in this Report fairly presents, in all material respects, the financial condition and results of operations of California Water Service Group.

Date: April 25, 2024	By:	/s/ Martin A. Kropelnicki
		MARTIN A. KROPELNICKI
		Chairman, President and Chief Executive Officer
		California Water Service Group
Date: April 25, 2024	By:	/s/ James P. Lynch
		JAMES P. LYNCH
		Senior Vice President, Chief Financial Officer and Treasurer
		(Principal Financial Officer)
		California Water Service Group

XML

Cover - shares	3 Months Ended
	Mar. 31, 2024	Apr. 22, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	1-13883
Entity Registrant Name	CALIFORNIA WATER SERVICE GROUP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0448994
Entity Address, Address Line One	1720 North First Street
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95112
City Area Code	408
Local Phone Number	367-8200
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	CWT
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		57,754,106
Entity Central Index Key	0001035201
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1

XML

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Utility plant:
Utility plant	$ 5,022,535	$ 4,925,483
Less accumulated depreciation and amortization	(1,174,013)	(1,152,228)
Net utility plant	3,848,522	3,773,255
Current assets:
Cash and cash equivalents	42,814	39,591
Restricted cash	45,449	45,375
Receivables:
Customers, net	51,346	59,349
Regulatory balancing accounts	56,125	64,240
Other, net	18,074	16,431
Unbilled revenue, net	28,769	36,999
Materials and supplies	16,934	16,170
Taxes, prepaid expenses, and other assets	23,615	18,130
Total current assets	283,126	296,285
Other assets:
Regulatory assets	384,501	257,621
Goodwill	37,039	37,039
Other	227,646	231,333
Total other assets	649,186	525,993
TOTAL ASSETS	4,780,834	4,595,533
Capitalization:
Common stock, $0.01 par value; 136,000 shares authorized, 57,754 and 57,724 outstanding on March 31, 2024 and December 31, 2023, respectively	578	577
Additional paid-in capital	876,894	876,583
Retained earnings	603,326	549,573
Accumulated other comprehensive loss	(13,366)	0
Noncontrolling interests	3,405	3,579
Total equity	1,470,837	1,430,312
Long-term debt, net	1,052,099	1,052,768
Total capitalization	2,522,936	2,483,080
Current liabilities:
Current maturities of long-term debt, net	1,176	672
Short-term borrowings	280,000	180,000
Accounts payable	119,839	157,305
Regulatory balancing accounts	16,644	21,540
Accrued interest	18,332	6,625
Accrued expenses and other liabilities	71,892	64,197
Total current liabilities	507,883	430,339
Deferred income taxes	369,600	352,762
Regulatory liabilities and other	809,165	760,493
Pension	83,252	82,920
Advances for construction	197,955	199,448
Contributions in aid of construction	290,043	286,491
Commitments and contingencies (Note 9)
TOTAL CAPITALIZATION AND LIABILITIES	$ 4,780,834	$ 4,595,533

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	136,000,000	136,000,000
Common stock, shares outstanding (in shares)	57,754,000	57,724,000

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Operating revenue	$ 270,749	$ 131,100
Operations:
Water production costs	64,185	55,008
Administrative and general	35,596	35,986
Other operations	26,925	16,604
Maintenance	8,010	7,978
Depreciation and amortization	32,844	29,915
Income tax expense (benefit)	15,538	(5,644)
Property and other taxes	9,757	8,777
Total operating expenses	192,855	148,624
Net operating income (loss)	77,894	(17,524)
Other income and expenses:
Non-regulated revenue	5,098	4,623
Non-regulated expenses	(1,954)	(2,275)
Other components of net periodic benefit credit	3,273	5,221
Allowance for equity funds used during construction	1,742	1,404
Income tax expense on other income and expenses	(1,321)	(1,794)
Net other income	6,838	7,179
Interest expense:
Interest expense	15,800	12,818
Allowance for borrowed funds used during construction	(758)	(829)
Net interest expense	15,042	11,989
Net income (loss)	69,690	(22,334)
Net loss attributable to noncontrolling interests	(227)	(123)
Net income (loss) attributable to California Water Service Group	$ 69,917	$ (22,211)
Earnings (loss) per share:
Basic (in dollars per share)	$ 1.21	$ (0.40)
Diluted (in dollars per share)	$ 1.21	$ (0.40)
Weighted average shares outstanding:
Basic (in shares)	57,733	55,666
Diluted (in shares)	57,774	55,666

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net income (loss)	$ 69,690	$ (22,334)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	33,401	30,433
Change in value of life insurance contracts	(1,667)	(1,641)
Allowance for equity funds used during construction	(1,742)	(1,404)
Changes in operating assets and liabilities:
Receivables and unbilled revenue	21,523	17,089
Accounts payable	(20,043)	(11,230)
Other current assets	(6,028)	(1,342)
Other current liabilities	17,409	10,024
Other changes in noncurrent assets and liabilities	(86,028)	1,375
Net cash provided by operating activities	26,515	20,970
Investing activities:
Utility plant expenditures	(109,806)	(81,980)
Life insurance proceeds	1,426	0
Purchase of life insurance contracts	(1,426)	0
Asset acquisitions	0	(102)
Net cash used in investing activities	(109,806)	(82,082)
Financing activities:
Short-term borrowings, net of debt issuance costs of $0 for 2024 and $1,552 for 2023	170,000	93,448
Repayment of short-term borrowings	(70,000)	(35,000)
Repayment of long-term debt	(206)	(214)
Advances and contributions in aid of construction	4,522	3,696
Refunds of advances for construction	(2,351)	(2,248)
Repurchase of common stock	(1,142)	(1,542)
Issuance of common stock	769	18,842
Dividends paid	(16,164)	(14,456)
Others	1,160	0
Net cash provided by financing activities	86,588	62,526
Change in cash, cash equivalents, and restricted cash	3,297	1,414
Cash, cash equivalents, and restricted cash at beginning of period	84,966	85,025
Cash, cash equivalents, and restricted cash at end of period	88,263	86,439
Supplemental information:
Cash paid for interest (net of amounts capitalized)	3,359	1,578
Supplemental disclosure of non-cash activities:
Accrued payables for investments in utility plant	37,498	42,038
Utility plant contribution by developers	$ 8,417	$ 7,032

XML

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Cash Flows [Abstract]
Payments of debt issuance costs	$ 0	$ 1,552

XML

Organization and Operations and Basis of Presentation

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Operations and Basis of Presentation

Organization and Operations and Basis of Presentation

California Water Service Group (Company) is a holding company that provides water utility and other related services in California, Washington, New Mexico, Hawaii, and Texas through its wholly-owned and non-wholly owned subsidiaries. California Water Service Company (Cal Water), Washington Water Service Company (Washington Water), New Mexico Water Service Company (New Mexico Water), and Hawaii Water Service Company, Inc. (Hawaii Water) provide regulated utility services under the rules and regulations of their respective state’s regulatory commissions (jointly referred to as the Commissions). CWS Utility Services and HWS Utility Services LLC provide non-regulated water utility and utility-related services. TWSC, Inc. (Texas Water) holds regulated and contracted wastewater utilities.

The Company operates in one reportable segment, providing water and water-related utility services.

 Basis of Presentation

The unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (SEC) and therefore do not contain all of the information and footnotes required by GAAP and the SEC for annual financial statements. Interim financial information includes the Company’s accounts and those of its wholly and non-wholly owned subsidiaries. The non-wholly owned subsidiary was consolidated using the voting interest model as the Company owns a majority of the non-wholly owned subsidiary’s voting interests. The interim unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2023 as filed with the SEC on February 29, 2024.

The preparation of the Company’s unaudited condensed consolidated interim financial statements in accordance with GAAP 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 balance sheet dates and the reported amounts of revenues and expenses for the periods presented. These include, but are not limited to, estimates and assumptions used in determining the Company’s regulatory asset and liability balances based upon probability assessments of regulatory recovery, utility plant useful lives, revenues earned but not yet billed, asset retirement obligations, allowance for credit losses, pension and other employee benefit plan liabilities, and income tax-related assets and liabilities. Actual results could materially differ from these estimates.

In the opinion of management, the accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of normal recurring transactions that are necessary to provide a fair presentation of the results for the periods covered.

Due to the seasonal nature of the water business, the results for interim periods are not indicative of the results for a 12-month period. Revenue and income are generally higher in the warm, dry summer months when water usage and sales are greater. Revenue and income are generally lower in the winter months when cooler temperatures and rainfall curtail water usage and sales.

Noncontrolling Interests

Noncontrolling interests in the Company’s condensed consolidated financial statements represents the 7.4% interest not owned by Texas Water in a consolidated subsidiary. Texas Water obtained control over the subsidiary on May 1, 2021. Since the Company controls this subsidiary, its financial statements are consolidated with those of the Company, and the noncontrolling owner’s 7.4% share of the subsidiary’s net assets and results of operations is deducted and reported as noncontrolling interests on the Condensed Consolidated Balance Sheet and as net loss attributable to noncontrolling interests in the Condensed Consolidated Statement of Operations. The Company reports noncontrolling interests in consolidated entities as a component of equity separate from the Company’s equity. The Company’s net income (loss) attributable to California Water Service Group excludes the net loss attributable to the noncontrolling interests.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Operating Revenue

The following table disaggregates the Company’s operating revenue by source for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Revenue from contracts with customers	$	154,900	$	145,225
Regulatory balancing account revenue	115,849		(14,125)
Total operating revenue	$	270,749	$	131,100

Revenue from contracts with customers

The Company principally generates operating revenue from contracts with customers by providing regulated water and wastewater services at tariff-rates authorized by the Commissions in the states in which they operate and non-regulated water and wastewater services at rates authorized by contracts with government agencies. Revenue from contracts with customers reflects amounts billed for the volume of consumption at authorized per unit rates, for a service charge, and for other authorized charges.

The Company satisfies its performance obligation to provide water and wastewater services over time as services are rendered. The Company applies the invoice practical expedient and recognizes revenue from contracts with customers in the amount for which the Company has a right to invoice. The Company has a right to invoice for the volume of consumption, for the service charge, and for other authorized charges.

The measurement of sales to customers is generally based on the reading of their meters, which occurs on a systematic basis throughout the month. At the end of each month, the Company estimates consumption since the date of the last meter reading and the corresponding unbilled revenue is recognized. The estimate is based upon the number of unbilled days that month and the average daily customer billing rate from the previous month (which fluctuates based upon customer usage).

Contract terms are generally short-term and at will by customers and, as a result, no separate financing component is recognized for the Company’s collections from customers, which generally require payment within 30 days of billing. The Company applies judgment, based principally on historical payment experience, in estimating its customers’ ability to pay.

Certain customers are not billed for volumetric consumption, but are instead billed a flat rate at the beginning of each monthly service period. The amount billed is initially deferred and subsequently recognized over the monthly service period, as the performance obligation is satisfied. The deferred revenue balance or contract liability, which is included in “accrued expenses and other liabilities” on the unaudited Condensed Consolidated Balance Sheets, is inconsequential.

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Residential	$	92,492	$	84,035
Business	34,549		31,974
Multiple residential	16,869		14,997
Industrial	6,640		5,634
Public authorities	6,962		6,425
Other (a)	(2,612)		2,160
Total revenue from contracts with customers	$	154,900	$	145,225

(a) Other includes accrued unbilled revenue

Regulatory balancing account revenue

Regulatory balancing account revenue is revenue related to revenue mechanisms authorized in California by the California Public Utilities Commission (CPUC). For certain revenue mechanisms, the Company recognizes revenue when it is objectively determinable, probable of recovery and expected to be collected within 24 months following the end of the accounting period. To the extent that revenue is estimated to be collectible beyond 24 months, recognition is deferred. These mechanisms include the Monterey-Style Water Revenue Adjustment Mechanism (MWRAM) which was approved in Cal Water’s most recent General Rate Case (GRC) filing in July 2021 (2021 GRC) in March of 2024. The MWRAM tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The MWRAM is effective retroactive to January 1, 2023. In the first quarter of 2024, the Company recorded $31.1 million of revenue for the MWRAM.

These mechanisms also include the Water Revenue Adjustment Mechanism (WRAM) which decoupled revenue from the volume of the sales and allowed the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts was recorded as regulatory balancing account revenue. The WRAM concluded on December 31, 2022; however, the Company has a net WRAM receivable balance for which the Company continues to defer revenue recognition for amounts estimated to be collected beyond 24 months following the end of the accounting period. The Company intends to apply the proceeds from the California Extended Water and Wastewater Arrearages Payment Program (Extended Program) to eligible customer WRAM balances.

Regulatory balancing accounts also include revenue that is recognized for balancing and memorandum accounts when it is probable that future recovery of previously incurred costs or future refunds that are to be credited to customers will occur through the ratemaking process. As a result of the delay in the approval of the 2021 GRC, the CPUC authorized Cal Water to track the effect of the delay on customer billings in an Interim Rates Memorandum Account (IRMA) effective January 1, 2023. Variances between actual customer billings and those that would have been billed assuming the 2021 GRC had been implemented on January 1, 2023 are recorded as regulatory balancing account revenue. The 2021 GRC was approved in March of 2024 and final authorized rates have not yet been implemented as of March 31, 2024; as a result, Cal Water calculated and recorded this difference for all of 2023 and the first three months of 2024. Cal Water determined that the IRMA met regulatory asset recognition criteria under accounting standards for regulated utilities. In the first quarter of 2024, the Company recorded $80.7 million of revenue for the IRMA.

Non-Regulated Revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Operating and maintenance revenue	$	3,248	$	3,235
Other non-regulated revenue	1,229		782
Non-regulated revenue from contracts with customers	4,477		4,017
Lease revenue	621		606
Total non-regulated revenue	$	5,098	$	4,623

Operating and maintenance services are provided for non-regulated water and wastewater systems owned by private companies and municipalities. The Company negotiates formal agreements with the customers under which the Company provides operating, maintenance and customer billing services related to the customers’ water system. The formal agreements outline the fee schedule for the services provided. The agreements typically call for a fee-per-service or a flat-rate amount per month. The Company satisfies its performance obligation of providing operating and maintenance services over time as services are rendered; as a result, the Company employs the invoice practical expedient and recognizes revenue in the amount that it has the right to invoice. Contract terms are generally short-term and, as a result, no separate financing component is recognized for its collections from customers, which generally require payment within 30 days of billing.

Other non-regulated revenue primarily relates to services for the design and installation of water mains and other water infrastructure for customers outside the regulated service areas and insurance program administration.

Lease revenue is not considered revenue from contracts with customers and is recognized following operating lease standards. The Company is the lessor in operating lease agreements with telecommunications companies under which cellular phone antennas are placed on the Company’s property.

Allowance for Credit Losses

The Company measures expected credit losses for Customer Receivables, Other Receivables, and Unbilled Revenue on an aggregated level. These receivables are generally trade receivables due in one year or less or expected to be billed and collected in one year or less. The expected credit losses for Other Receivables and Unbilled Revenue are inconsequential. Customer receivables include receivables for water and wastewater services provided to residential customers, business, industrial, public authorities, and other customers. The expected credit losses for business, industrial, public authorities, and other customers are inconsequential. The overall risks related to the Company’s receivables are low as water and wastewater services are seen as essential services. The estimate for the allowance for credit losses is based on a historical loss ratio, in conjunction with a qualitative assessment of elements that impact the collectability of receivables to determine if the allowance for credit losses should be further adjusted in accordance with the accounting guidance for credit losses. Management contemplates available current information such as changes in economic factors, regulatory matters, industry trends, payment options and programs available to customers, and the methods that the Company is able to use to ensure payment.

The Company reviews its allowance for credit losses utilizing a quantitative assessment, which includes a trend analysis of customer billings and collections, agings by customer class, and unemployment rates. The Company also utilizes a qualitative assessment, which considers the future collectability on customer outstanding balances, management’s estimate of the cash recovery, and a general assessment of the economic conditions in the locations the Company serves. Based on these assessments, the Company adjusts its allowance for credit losses. The Company has also taken into account $82.0 million of funds that the Company received in April of 2024 from the Extended Program for eligible customers in California (refer to Note 11, “Subsequent Events” for more details). The Extended Program was created by the California Legislature, and is administered by the State Water Resources Control Board (Water Board) and provides relief to community water and wastewater systems for unpaid bills – arrearages – related to the COVID-19 pandemic. Based on the above assessments, the Company adjusted its allowance for credit losses accordingly.

The following table presents the activity in the allowance for credit losses for the three months ended March 31, 2024 and twelve months ended December 31, 2023:

	March 31, 2024		December 31, 2023
Beginning balance	$	2,854	$	5,629
Provision for credit loss expense	1,052		2,480
Write-offs	(1,288)		(5,795)
Recoveries	126		540
Total ending allowance balance	$	2,744	$	2,854

Cash, Cash Equivalents, and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown on the Condensed Consolidated Statements of Cash Flows (see Note 9 for further details on restricted cash):

	March 31, 2024		December 31, 2023
Cash and cash equivalents	$	42,814	$	39,591
Restricted cash	45,449		45,375
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	88,263	$	84,966

Earnings (Loss) per Share

Basic earnings (loss) per share of common stock is computed by dividing the net income (loss) attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect the potential dilution that could occur if securities or other contracts were exercised or converted into common stock. Restricted Stock Awards (RSAs) are included in the common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock.

New Accounting Standards and SEC Rules

In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for the Company’s annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. The guidance requires retrospective presentation of all prior periods presented in the financial statements. The Company is currently evaluating the potential effect that the updated standard will have on its financial statement disclosures and does not expect to early adopt.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for the Company's annual periods beginning January 1, 2025, with early adoption permitted. The guidance is applied prospectively with the option of retrospective application for each period presented. The Company is currently evaluating the potential effect that the updated standard will have on its financial statement disclosures and does not expect to early adopt.

In March 2024, the SEC issued SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. The final rules enhance disclosures related to the risks and impacts of climate-related matters and, in April 2024, the SEC voluntarily stayed the new rules as a result of pending legal challenges. The new rules, if they become effective as adopted, would require various disclosures related to climate-related risks if those risks could have a material impact on the Company’s business, results of operations, or financial condition. Required disclosures would also include information about the Company’s greenhouse gas emissions, if material. In addition, the rules would require disclosure of certain climate-related financial metrics in the Company’s financial statements. The final rules, if they become effective as adopted, would be effective no earlier than the Company’s Annual Report on Form 10-K for the year ending December 31, 2025. The Company is currently evaluating the potential effect that the rules will have on its financial statement disclosures.

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Stock-Based Compensation

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Stock-Based Compensation.

For the three months ended March 31, 2024, the Company did not grant any RSAs of common stock to Officers or to members of the Board of Directors (Directors). Generally, an RSA share represents the right to receive a share of the Company’s common stock and is valued based on the fair market value of the Company’s common stock at the date of grant. RSAs granted to Officers vest over 36 months with the first year cliff vesting. In general, RSAs granted to the Directors vest at the end of 12 months. The RSAs are recognized as expense evenly over 36 months for the shares granted to Officers and 12 months for the shares granted to the Directors. As of March 31, 2024, there was approximately $1.3 million of total unrecognized compensation cost related to RSAs. The cost is expected to be recognized over a weighted average period of 1.6 years.

A summary of the status of the outstanding RSAs as of March 31, 2024 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2024	53,303	$	55.48
Vested	(28,843)	55.23
RSAs at March 31, 2024	24,460	$	55.78

For the three months ended March 31, 2024, the Company did not grant any performance-based Restricted Stock Units (RSUs) to Officers. Generally, a RSU represents the right to receive a share of the Company’s common stock. Each award reflects a target number of shares of common stock that may be issued to the award recipient. Whether RSUs are earned at the end of the performance period will be determined based on the achievement of certain performance objectives set by the Organization and Compensation Committee of the Board of Directors in connection with the issuance of the RSUs. The performance objectives are based on the Company’s business plan covering the performance period. Depending on the results achieved during the 3-year performance period, the actual number of shares that a grant recipient receives at the end of the performance period may range from 0% to 200% of the target shares granted, provided that the grantee is continuously employed by the Company through the vesting date. If prior to the vesting date employment is terminated by reason of death, disability or normal retirement, then a pro rata portion of this award will vest. The RSUs are recognized as expense ratably over the 3-year performance period using a fair market value of the Company’s common stock at the date of grant and an estimated number of RSUs earned during the performance period. As of March 31, 2024, there was approximately $2.0 million of total unrecognized compensation cost related to RSUs. The cost is expected to be recognized over a weighted average period of 1.5 years.

A summary of the status of outstanding RSUs as of March 31, 2024 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2024	93,078	$	55.41
Performance criteria adjustment	13,735	53.96
Vested	(36,394)	53.96
RSUs at March 31, 2024	70,419	$	55.87

The Company has recorded compensation costs for the RSAs and RSUs which are included in administrative and general operating expenses in the amount of $0.7 million and $0.1 million for the three months ended March 31, 2024 and 2023, respectively.

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Equity

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Equity

Equity

On April 29, 2022, the Company entered into an equity distribution agreement to sell shares of its common stock having an aggregate gross sales price of up to $350.0 million from time to time depending on market conditions through an at-the-market equity program over the next three years. The Company intends to use the net proceeds from these sales, after deducting commissions and offering expenses, for general corporate purposes, which may include working capital, construction and acquisition expenditures, investments and repurchases, and redemptions of securities. The Company did not utilize its at-the-market equity program during the three months ended March 31, 2024. During the three months ended March 31, 2023, the Company sold 326,042 shares of common stock through its at-the-market equity program and raised proceeds of $18.2 million, net of $0.2 million in sales commissions.

The Company’s changes in total equity for the three months ended March 31, 2024 and 2023 were as follows:

	Three Months Ended March 31, 2024
	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2024	57,724	$	577	$	876,583	$	549,573	$	—	$	3,579	$	1,430,312
Net income	—	—		—		69,917		—		(227)		69,690
Issuance of common stock	55	1		1,506		—		—		—		1,507
Repurchase of common stock	(25)	—		(1,142)		—		—		—		(1,142)
Dividends paid on common stock ($0.2800 per share)	—	—		—		(16,164)		—		—		(16,164)
Adjustment for unrecoverable pension benefit plan costs	—	—		—		—		(13,663)		—		(13,663)
Amounts reclassified to earnings (a)	—	—		—		—		297		—		297
Investment in business with noncontrolling interest	—	—		(53)		—		—		53		—
Balance at March 31, 2024	57,754	578		876,894		603,326		(13,366)		3,405		1,470,837

(a) This accumulated other comprehensive loss component is included in the computation of net periodic costs for the Company’s supplemental executive retirement plan (SERP), specifically the following components: amortization of unrecognized (gain) loss and amortization of prior service credit.

	Three Months Ended March 31, 2023
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2023	55,598	$	556	$	760,336	$	556,698	$	4,804	$	1,322,394
Net loss	—	—		—		(22,211)		(123)		(22,334)
Issuance of common stock	420	4		17,380		—		—		17,384
Repurchase of common stock	(27)	—		—		—		—		—
Dividends paid on common stock ($0.2600 per share)	—	—		—		(14,456)		—		(14,456)
Investment in business with noncontrolling interest	—	—		(111)		—		111		—
Balance at March 31, 2023	55,991	560		777,605		520,031		4,792		1,302,988

In Cal Water’s 2021 GRC decision that was issued in March of 2024, SERP expenses were not approved to be recovered from customers for the years 2023, 2024 and 2025. Without regulatory recovery, Cal Water no longer meets the regulatory asset recognition criteria to record the unrecognized prior service costs and actuarial gain and loss amounts related to the SERP as a regulatory asset. The Company has applied compensation recognition guidance and recorded the unrecognized prior service costs and actuarial gains and losses to accumulated other comprehensive loss. As of March 31, 2024, the Company reclassified $13.7 million to accumulated other comprehensive loss, which is Cal Water’s cumulative portion of the regulatory asset.

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Pension Plan and Other Postretirement Benefits

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Pension Plan and Other Postretirement Benefits

Pension Plan and Other Postretirement Benefits

The Company provides a qualified, defined-benefit, non-contributory pension plan for substantially all its employees. The Company makes annual contributions to fund amounts accrued for the qualified pension plan. The Company also maintains an unfunded, non-qualified SERP. The costs of the plans are charged to expense or are capitalized in utility plant as appropriate.

The Company offers medical, dental, vision, and life insurance benefits for retirees and their spouses and dependents. Participants are required to pay a premium, which offsets a portion of the cost.

No cash contributions were made by the Company to the pension plans nor the other postretirement benefit plans for the three months ended March 31, 2024. The Company made cash contributions of $2.9 million and $0.2 million, respectively, to the pension plans and other postretirement benefit plan for the three months ended March 31, 2023. The Company estimates in 2024 that the annual contribution to the pension plans will be $0.7 million and the annual contribution to the other postretirement plan will be $0.2 million.

The following table lists components of net periodic benefit costs for the pension plans and other postretirement benefits. The data listed under “pension plan” includes the qualified pension plan and the non-qualified SERP. The data listed under “other benefits” is for all other postretirement benefits.

	Three Months Ended March 31,
	Pension Plan				Other Benefits
	2024		2023		2024		2023
Service cost	$	5,648	$	6,046	$	1,520	$	1,126
Interest cost	8,881		8,746		1,684		1,297
Expected return on plan assets	(13,236)		(13,421)		(2,987)		(2,636)
Amortization of prior service cost	131		131		39		39
Recognized net actuarial (gain) loss	189		(637)		(198)		(581)
Net periodic benefit cost (credit)	$	1,613	$	865	$	58	$	(755)

Service cost portion of the pension plan and other postretirement benefits is recognized in administrative and general expenses within the Condensed Consolidated Statements of Operations. Other components of net periodic benefit costs include interest costs, expected return on plan assets, amortization of prior service costs, and recognized net actuarial loss and are reported together as other components of net periodic benefit cost within the Condensed Consolidated Statements of Operations.

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Short-term and Long-term Borrowings

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Short-term and Long-term Borrowings

Short-term and Long-term Borrowings

On March 31, 2023, the Company and Cal Water entered into syndicated credit agreements, which provide for unsecured revolving credit facilities of up to an initial aggregate amount of $600.0 million for a term of five years. The Company and subsidiaries that it designates may borrow up to $200.0 million under the Company’s revolving credit facility (the Company facility). Cal Water may borrow up to $400.0 million under its revolving credit facility (the Cal Water facility). Additionally, the credit facilities may be increased by up to an incremental $150.0 million under the Cal Water facility and $50.0 million under the Company facility, subject in each case to certain conditions. At the Company’s or Cal Water’s option, as applicable, borrowings under the Company and Cal Water facilities, as applicable, will bear interest annually at a rate equal to (i) the base rate, plus an applicable margin of 0.00% to 0.250%, depending on the Company and its subsidiaries’ consolidated total capitalization ratio, or (ii) Term SOFR, plus an applicable margin of 0.800% to 1.250%, depending on the Company and its subsidiaries’ consolidated total capitalization ratio.

The Company and Cal Water facilities contain affirmative and negative covenants and events of default customary for credit facilities of this type including, among other things, limitations and prohibitions relating to additional indebtedness, liens, mergers, and asset sales. Also, the Company and Cal Water facilities contain financial covenants governing the Company and its subsidiaries’ consolidated total capitalization ratio and interest coverage ratio. As of March 31, 2024, the Company and Cal Water are in compliance with all of the covenant requirements and are eligible to use the full amount of the undrawn portion of the Company and Cal Water facilities, as applicable.

Borrowings on the Company lines of credit as of March 31, 2024 and December 31, 2023 were $65.0 million and $50.0 million, respectively. Outstanding borrowings on the Cal Water lines of credit as of March 31, 2024 and December 31, 2023 were $215.0 million and $130.0 million, respectively. The average borrowing rate for borrowings on the Company and Cal Water lines of credit during the three months ended March 31, 2024 was 6.38% compared to 5.49% for the same period last year.

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Income Taxes

3 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company adjusts its effective tax rate each quarter to be consistent with the estimated annual effective tax rate. The Company also records the tax effect of unusual or infrequently occurring discrete items.

The provision for income taxes is shown in the tables below:

	Three Months Ended March 31,
	2024		2023
Income tax (benefit) expense	$	16,859	$	(3,850)

Income tax expense increased $20.7 million to $16.9 million for the three months ended March 31, 2024 as compared to $3.9 million tax benefit for the three months ended March 31, 2023, primarily due to an increase in pre-tax operating income in the first three months ended March 31, 2024 as compared to 2023. The increase in income tax expense was primarily due to the recognition of income related to the 2021 GRC decision.

The Company’s effective tax rate was 19.6% and 14.6% before discrete items as of March 31, 2024 and March 31, 2023. The increase in the effective tax rate was primarily due to the recognition of the 2021 GRC.

The Company had unrecognized tax benefits of approximately $16.6 million and $14.0 million as of March 31, 2024 and 2023, respectively. Included in the balance of unrecognized tax benefits as of March 31, 2024 and 2023, is $5.0 million and $4.5 million, respectively, of tax benefits that, if recognized, would result in an adjustment to the Company’s effective tax rate. The Company does not expect its unrecognized tax benefits to change significantly within the next 12 months.

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Regulatory Assets and Liabilities

3 Months Ended

Mar. 31, 2024

Regulated Operations [Abstract]

Regulatory Assets and Liabilities

Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2024 and December 31, 2023:

	Recovery Period	March 31, 2024		December 31, 2023
Regulatory Assets
Property-related temporary differences (tax benefits flowed through to customers)	Indefinite	158,486		158,486
Other accrued benefits	Indefinite	26,975		25,363
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable	Various	10,490		10,738
Asset retirement obligations, net	Indefinite	27,495		26,686
IRMA long-term accounts receivable	1 - 2 years	84,593		3,430
MWRAM	1 year	31,066		—
Tank coating	Various	20,112		19,602
Recoverable property losses	Various	2,956		3,121
Pension Cost Balancing Account (PCBA)	Various	4,314		4,182
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	10,787		2,459
Other regulatory assets	Various	7,227		3,554
Total Regulatory Assets		$	384,501	$	257,621
Regulatory Liabilities
Cost of removal		$	456,471	$	447,356
Future tax benefits due to customers		118,051		118,051
Pension and retiree group health		102,255		88,728
Incremental cost balancing account (ICBA)		10,795		—
IRMA long-term regulatory liability		6,993		—
Health Cost Balancing Account (HCBA)		4,291		3,242
PCBA		11,220		8,972
Conservation Expense Balancing Account		1,324		1,200
Net WRAM and MCBA long-term payable		3,082		2,071
Other components of net periodic benefit cost		13,300		10,348
RSF regulatory liability		—		2,116
Other regulatory liabilities		2,122		1,633
Total Regulatory Liabilities		$	729,904	$	683,717

The IRMA regulatory asset increase was for the additional amount the Company would have billed customers in 2023 and the first quarter of 2024 had the 2021 GRC been approved on time. The IRMA regulatory liability represents additional CAP and RSF credits the Company would have provided to customers in 2023 and the first quarter of 2024 had the 2021 GRC been approved on time.

The MWRAM regulatory asset represents the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect.

The ICBA tracks differences between the authorized prices of water production costs and actual prices of water production costs. In the first quarter of 2024, the Company recorded a regulatory liability for certain service territories of $10.8 million as the authorized water production costs were higher than actual water production costs. The Company also recorded a regulatory asset for certain service territories of $1.6 million as the authorized water production costs were lower than actual water production costs. The ICBA regulatory asset is part of “Other regulatory assets” in the table above.

Short-term regulatory assets and liabilities are excluded from the above table. The short-term regulatory assets were $56.1 million as of March 31, 2024 and $64.2 million as of December 31, 2023. The short-term regulatory assets as of March 31, 2024 and December 31, 2023, primarily consisted of net WRAM and MCBA, and PCBA receivables and are included in current assets as part of regulatory balancing accounts on the Condensed Consolidated Balance Sheets.

The short-term portion of regulatory liabilities were $16.6 million as of March 31, 2024 and $21.5 million as of December 31, 2023. The short-term regulatory liabilities as of March 31, 2024 and December 31, 2023, primarily consisted of Tax Cuts and Jobs Act regulatory liabilities and HCBA liabilities and are included in current liabilities as part of regulatory balancing accounts on the Condensed Consolidated Balance Sheets.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Commitments

The Company has long-term commitments to purchase water from water wholesalers. The Company also has operating and finance leases for water systems, offices, land easements, licenses, equipment, and other facilities. These commitments and leases are described in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023. 

On August 16, 2022, BVRT Utility Holding Company (BVRT), a majority owned subsidiary of Texas Water, entered into a long-term water supply agreement with the Guadalupe Blanco River Authority (GBRA) through its wholly owned subsidiary, Camino Real Utility (Camino Real). The Company has provided a limited guarantee to GBRA for agreed upon obligations. GBRA is a water conservation and reclamation district established by the Texas Legislature that oversees water resources for 10 counties. Under the terms of the agreement with GBRA, Camino Real is contracted to receive up to 2,419 acre-feet of potable water annually. The GBRA agreement involves four off-takers, including Camino Real, and GBRA plans to extend a potable water pipeline from the City of Lockhart to the City of Mustang Ridge and surrounding areas. Camino Real is contracted to be the utility service provider in this area of the Austin metropolitan region and to provide potable water, recycled water, and wastewater services to portions of the City of Mustang Ridge and surrounding areas. In 2022, Camino Real committed $21.5 million for its share of the cost of the pipeline project. In 2023, Camino Real committed an additional $22.3 million for its share of the cost of the pipeline project. As of March 31, 2024, this committed cash has not been transferred to GBRA and is classified as part of restricted cash on the Condensed Consolidated Balance Sheets. The Company currently expects the committed cash to be transferred to GBRA before the end of 2024.

Contingencies

Groundwater Contamination

The Company has undertaken litigation against third parties to recover past and future costs related to groundwater contamination in our service areas. The cost of litigation is generally expensed as incurred and any settlement is first offset against such costs. The CPUC’s general policy requires all proceeds from contamination litigation to be used first to pay transactional expenses, then to make customers whole for water treatment costs to comply with the CPUC’s water quality standards. The CPUC allows for a risk-based consideration of contamination proceeds which exceed the costs of the remediation described above and may result in some sharing of proceeds with the shareholder, determined on a case-by-case basis. The CPUC has authorized various memorandum accounts that allow the Company to track significant litigation costs and to request recovery of these costs in future filings and uses of proceeds to comply with CPUC’s general policy.

Other Legal Matters

From time to time, the Company is involved in various disputes and litigation matters that arise in the ordinary course of business. The status of each significant matter is reviewed and assessed for potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and the amount of the range of loss can be estimated, a liability is accrued for the estimated loss in accordance with the accounting standards for contingencies. Legal proceedings are subject to uncertainties, and the outcomes are difficult to predict. Because of such uncertainties, accruals are based on the best information available at the time. While the outcome of these disputes and litigation matters cannot be predicted with any certainty, management does not believe when taking into account existing reserves the ultimate resolution of these matters will materially affect the Company’s financial position, results of operations, or cash flows. As of March 31, 2024 and December 31, 2023, the Company recognized a liability of $6.9 million and $6.0 million, respectively, primarily due to potable water main leaks and other work related legal matters. The cost of litigation is expensed as incurred and any settlement is first offset against such costs. Any settlement in excess of the cost to litigate is accounted for on a case-by-case basis, dependent on the nature of the settlement.

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Fair Value of Financial Assets and Liabilities

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value of Financial Assets and Liabilities

Fair Value of Financial Assets and Liabilities

The accounting guidance for fair value measurements and disclosures provides a single definition of fair value and requires certain disclosures about assets and liabilities measured at fair value. A hierarchical framework for disclosing the observability of the inputs utilized in measuring assets and liabilities at fair value is established by this guidance. The three levels in the hierarchy are as follows:

Level 1—Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access.

Level 2—Inputs to the valuation methodology include:

•Quoted market prices for similar assets or liabilities in active markets;

•Quoted prices for identical or similar assets or liabilities in inactive markets;

•Inputs other than quoted prices that are observable for the asset or liability; and

•Inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the level 2 input must be observable for substantially the full term of the asset or liability.

Level 3—Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

Specific valuation methods include the following:

Cash, accounts receivable, short-term borrowings, and accounts payable carrying amounts approximated the fair value because of the short-term maturity of the instruments.

Pension and other postretirement benefit plan assets are measured at either net asset value or level 1 depending on the investment.

Long-term debt fair values were estimated using the published quoted market price, if available, or the discounted cash flow analysis, based on the current rates available using a risk-free rate (a U.S. Treasury securities yield curve) plus a risk premium of 0.60%.

	March 31, 2024
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,053,275	$	—	$	939,102	$	—	$	939,102

	December 31, 2023
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,053,440	$	—	$	965,444	$	—	$	965,444

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Subsequent Event

3 Months Ended

Mar. 31, 2024

Subsequent Events [Abstract]

Subsequent Event

Subsequent Event

California Extended Water and Wastewater Arrearages Payment Program

The California Water and Wastewater Arrearages Payment Program was created by the California Legislature to be administered by the Water Board in order to provide relief to community water and wastewater systems for unpaid bills (arrearages) related to the COVID-19 pandemic.

In 2023, the Extended Program was established and extended the relief period to include arrearages accrued from June 16, 2021 to December 31, 2022. In response to the Extended Program, Cal Water submitted an application for $82.0 million in eligible customer arrearages and $1.0 million in program administrative costs which was approved by the Water Board. Cal Water received the funds in April of 2024 and intends to apply the funds to identified eligible past due customer balances during the second quarter of 2024.

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 69,917	$ (22,211)

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Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The unaudited condensed consolidated interim financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) for interim financial information and in accordance with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X promulgated by the Securities and Exchange Commission (SEC) and therefore do not contain all of the information and footnotes required by GAAP and the SEC for annual financial statements. Interim financial information includes the Company’s accounts and those of its wholly and non-wholly owned subsidiaries. The non-wholly owned subsidiary was consolidated using the voting interest model as the Company owns a majority of the non-wholly owned subsidiary’s voting interests. The interim unaudited condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2023 as filed with the SEC on February 29, 2024.

The preparation of the Company’s unaudited condensed consolidated interim financial statements in accordance with GAAP 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 balance sheet dates and the reported amounts of revenues and expenses for the periods presented. These include, but are not limited to, estimates and assumptions used in determining the Company’s regulatory asset and liability balances based upon probability assessments of regulatory recovery, utility plant useful lives, revenues earned but not yet billed, asset retirement obligations, allowance for credit losses, pension and other employee benefit plan liabilities, and income tax-related assets and liabilities. Actual results could materially differ from these estimates.

In the opinion of management, the accompanying unaudited condensed consolidated interim financial statements reflect all adjustments, consisting of normal recurring transactions that are necessary to provide a fair presentation of the results for the periods covered.

Due to the seasonal nature of the water business, the results for interim periods are not indicative of the results for a 12-month period. Revenue and income are generally higher in the warm, dry summer months when water usage and sales are greater. Revenue and income are generally lower in the winter months when cooler temperatures and rainfall curtail water usage and sales.

Revenue

Revenue from contracts with customers

The Company principally generates operating revenue from contracts with customers by providing regulated water and wastewater services at tariff-rates authorized by the Commissions in the states in which they operate and non-regulated water and wastewater services at rates authorized by contracts with government agencies. Revenue from contracts with customers reflects amounts billed for the volume of consumption at authorized per unit rates, for a service charge, and for other authorized charges.

The Company satisfies its performance obligation to provide water and wastewater services over time as services are rendered. The Company applies the invoice practical expedient and recognizes revenue from contracts with customers in the amount for which the Company has a right to invoice. The Company has a right to invoice for the volume of consumption, for the service charge, and for other authorized charges.

The measurement of sales to customers is generally based on the reading of their meters, which occurs on a systematic basis throughout the month. At the end of each month, the Company estimates consumption since the date of the last meter reading and the corresponding unbilled revenue is recognized. The estimate is based upon the number of unbilled days that month and the average daily customer billing rate from the previous month (which fluctuates based upon customer usage).

Contract terms are generally short-term and at will by customers and, as a result, no separate financing component is recognized for the Company’s collections from customers, which generally require payment within 30 days of billing. The Company applies judgment, based principally on historical payment experience, in estimating its customers’ ability to pay.

Certain customers are not billed for volumetric consumption, but are instead billed a flat rate at the beginning of each monthly service period. The amount billed is initially deferred and subsequently recognized over the monthly service period, as the performance obligation is satisfied. The deferred revenue balance or contract liability, which is included in “accrued expenses and other liabilities” on the unaudited Condensed Consolidated Balance Sheets, is inconsequential.

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Residential	$	92,492	$	84,035
Business	34,549		31,974
Multiple residential	16,869		14,997
Industrial	6,640		5,634
Public authorities	6,962		6,425
Other (a)	(2,612)		2,160
Total revenue from contracts with customers	$	154,900	$	145,225

(a) Other includes accrued unbilled revenue

Regulatory balancing account revenue

Regulatory balancing account revenue is revenue related to revenue mechanisms authorized in California by the California Public Utilities Commission (CPUC). For certain revenue mechanisms, the Company recognizes revenue when it is objectively determinable, probable of recovery and expected to be collected within 24 months following the end of the accounting period. To the extent that revenue is estimated to be collectible beyond 24 months, recognition is deferred. These mechanisms include the Monterey-Style Water Revenue Adjustment Mechanism (MWRAM) which was approved in Cal Water’s most recent General Rate Case (GRC) filing in July 2021 (2021 GRC) in March of 2024. The MWRAM tracks the difference between the revenue received for actual metered sales through the tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a uniform rate had been in effect. The MWRAM is effective retroactive to January 1, 2023. In the first quarter of 2024, the Company recorded $31.1 million of revenue for the MWRAM.

These mechanisms also include the Water Revenue Adjustment Mechanism (WRAM) which decoupled revenue from the volume of the sales and allowed the Company to recognize the adopted level of volumetric revenues. The variance between adopted volumetric revenues and actual billed volumetric revenues for metered accounts was recorded as regulatory balancing account revenue. The WRAM concluded on December 31, 2022; however, the Company has a net WRAM receivable balance for which the Company continues to defer revenue recognition for amounts estimated to be collected beyond 24 months following the end of the accounting period. The Company intends to apply the proceeds from the California Extended Water and Wastewater Arrearages Payment Program (Extended Program) to eligible customer WRAM balances.

Regulatory balancing accounts also include revenue that is recognized for balancing and memorandum accounts when it is probable that future recovery of previously incurred costs or future refunds that are to be credited to customers will occur through the ratemaking process. As a result of the delay in the approval of the 2021 GRC, the CPUC authorized Cal Water to track the effect of the delay on customer billings in an Interim Rates Memorandum Account (IRMA) effective January 1, 2023. Variances between actual customer billings and those that would have been billed assuming the 2021 GRC had been implemented on January 1, 2023 are recorded as regulatory balancing account revenue. The 2021 GRC was approved in March of 2024 and final authorized rates have not yet been implemented as of March 31, 2024; as a result, Cal Water calculated and recorded this difference for all of 2023 and the first three months of 2024. Cal Water determined that the IRMA met regulatory asset recognition criteria under accounting standards for regulated utilities. In the first quarter of 2024, the Company recorded $80.7 million of revenue for the IRMA.

Non-Regulated Revenue

Non-Regulated Revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Operating and maintenance revenue	$	3,248	$	3,235
Other non-regulated revenue	1,229		782
Non-regulated revenue from contracts with customers	4,477		4,017
Lease revenue	621		606
Total non-regulated revenue	$	5,098	$	4,623

Operating and maintenance services are provided for non-regulated water and wastewater systems owned by private companies and municipalities. The Company negotiates formal agreements with the customers under which the Company provides operating, maintenance and customer billing services related to the customers’ water system. The formal agreements outline the fee schedule for the services provided. The agreements typically call for a fee-per-service or a flat-rate amount per month. The Company satisfies its performance obligation of providing operating and maintenance services over time as services are rendered; as a result, the Company employs the invoice practical expedient and recognizes revenue in the amount that it has the right to invoice. Contract terms are generally short-term and, as a result, no separate financing component is recognized for its collections from customers, which generally require payment within 30 days of billing.

Other non-regulated revenue primarily relates to services for the design and installation of water mains and other water infrastructure for customers outside the regulated service areas and insurance program administration.

Lease revenue

Lease revenue is not considered revenue from contracts with customers and is recognized following operating lease standards. The Company is the lessor in operating lease agreements with telecommunications companies under which cellular phone antennas are placed on the Company’s property.

Allowance for Credit Losses

Allowance for Credit Losses

The Company measures expected credit losses for Customer Receivables, Other Receivables, and Unbilled Revenue on an aggregated level. These receivables are generally trade receivables due in one year or less or expected to be billed and collected in one year or less. The expected credit losses for Other Receivables and Unbilled Revenue are inconsequential. Customer receivables include receivables for water and wastewater services provided to residential customers, business, industrial, public authorities, and other customers. The expected credit losses for business, industrial, public authorities, and other customers are inconsequential. The overall risks related to the Company’s receivables are low as water and wastewater services are seen as essential services. The estimate for the allowance for credit losses is based on a historical loss ratio, in conjunction with a qualitative assessment of elements that impact the collectability of receivables to determine if the allowance for credit losses should be further adjusted in accordance with the accounting guidance for credit losses. Management contemplates available current information such as changes in economic factors, regulatory matters, industry trends, payment options and programs available to customers, and the methods that the Company is able to use to ensure payment.

The Company reviews its allowance for credit losses utilizing a quantitative assessment, which includes a trend analysis of customer billings and collections, agings by customer class, and unemployment rates. The Company also utilizes a qualitative assessment, which considers the future collectability on customer outstanding balances, management’s estimate of the cash recovery, and a general assessment of the economic conditions in the locations the Company serves. Based on these assessments, the Company adjusts its allowance for credit losses. The Company has also taken into account $82.0 million of funds that the Company received in April of 2024 from the Extended Program for eligible customers in California (refer to Note 11, “Subsequent Events” for more details). The Extended Program was created by the California Legislature, and is administered by the State Water Resources Control Board (Water Board) and provides relief to community water and wastewater systems for unpaid bills – arrearages – related to the COVID-19 pandemic. Based on the above assessments, the Company adjusted its allowance for credit losses accordingly.

Earnings (Loss) per Share

Earnings (Loss) per Share

Basic earnings (loss) per share of common stock is computed by dividing the net income (loss) attributable to California Water Service Group by the weighted average number of common shares outstanding during the period. Diluted earnings per share reflect the potential dilution that could occur if securities or other contracts were exercised or converted into common stock. Restricted Stock Awards (RSAs) are included in the common shares outstanding because the shares have all the same voting and dividend rights as issued and unrestricted common stock.

New Accounting Standards and SEC Rules

New Accounting Standards and SEC Rules

In November 2023, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures which expands annual and interim disclosure requirements for reportable segments, primarily through enhanced disclosures about significant segment expenses. ASU 2023-07 is effective for the Company’s annual periods beginning January 1, 2024, and for interim periods beginning January 1, 2025, with early adoption permitted. The guidance requires retrospective presentation of all prior periods presented in the financial statements. The Company is currently evaluating the potential effect that the updated standard will have on its financial statement disclosures and does not expect to early adopt.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures to expand the disclosure requirements for income taxes, specifically related to the rate reconciliation and income taxes paid. ASU 2023-09 is effective for the Company's annual periods beginning January 1, 2025, with early adoption permitted. The guidance is applied prospectively with the option of retrospective application for each period presented. The Company is currently evaluating the potential effect that the updated standard will have on its financial statement disclosures and does not expect to early adopt.

In March 2024, the SEC issued SEC Release No. 33-11275, The Enhancement and Standardization of Climate-Related Disclosures for Investors. The final rules enhance disclosures related to the risks and impacts of climate-related matters and, in April 2024, the SEC voluntarily stayed the new rules as a result of pending legal challenges. The new rules, if they become effective as adopted, would require various disclosures related to climate-related risks if those risks could have a material impact on the Company’s business, results of operations, or financial condition. Required disclosures would also include information about the Company’s greenhouse gas emissions, if material. In addition, the rules would require disclosure of certain climate-related financial metrics in the Company’s financial statements. The final rules, if they become effective as adopted, would be effective no earlier than the Company’s Annual Report on Form 10-K for the year ending December 31, 2025. The Company is currently evaluating the potential effect that the rules will have on its financial statement disclosures.

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Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Disaggregation of Revenue

The following table disaggregates the Company’s operating revenue by source for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Revenue from contracts with customers	$	154,900	$	145,225
Regulatory balancing account revenue	115,849		(14,125)
Total operating revenue	$	270,749	$	131,100

In the following table, revenue from contracts with customers is disaggregated by class of customers for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Residential	$	92,492	$	84,035
Business	34,549		31,974
Multiple residential	16,869		14,997
Industrial	6,640		5,634
Public authorities	6,962		6,425
Other (a)	(2,612)		2,160
Total revenue from contracts with customers	$	154,900	$	145,225

(a) Other includes accrued unbilled revenue

The following table disaggregates the Company’s non-regulated revenue by source for the three months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Operating and maintenance revenue	$	3,248	$	3,235
Other non-regulated revenue	1,229		782
Non-regulated revenue from contracts with customers	4,477		4,017
Lease revenue	621		606
Total non-regulated revenue	$	5,098	$	4,623

Schedule of Allowance for Credit Losses

The following table presents the activity in the allowance for credit losses for the three months ended March 31, 2024 and twelve months ended December 31, 2023:

	March 31, 2024		December 31, 2023
Beginning balance	$	2,854	$	5,629
Provision for credit loss expense	1,052		2,480
Write-offs	(1,288)		(5,795)
Recoveries	126		540
Total ending allowance balance	$	2,744	$	2,854

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts shown on the Condensed Consolidated Statements of Cash Flows (see Note 9 for further details on restricted cash):

	March 31, 2024		December 31, 2023
Cash and cash equivalents	$	42,814	$	39,591
Restricted cash	45,449		45,375
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$	88,263	$	84,966

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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Restricted Stock and Restricted Stock Unit Activity

A summary of the status of the outstanding RSAs as of March 31, 2024 is presented below:

	Number of RSA Shares	Weighted-Average Grant-Date Fair Value
RSAs at January 1, 2024	53,303	$	55.48
Vested	(28,843)	55.23
RSAs at March 31, 2024	24,460	$	55.78

A summary of the status of outstanding RSUs as of March 31, 2024 is presented below:

	Number of RSU Shares	Weighted-Average Grant-Date Fair Value
RSUs at January 1, 2024	93,078	$	55.41
Performance criteria adjustment	13,735	53.96
Vested	(36,394)	53.96
RSUs at March 31, 2024	70,419	$	55.87

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Equity (Tables)

3 Months Ended

Mar. 31, 2024

Equity [Abstract]

Schedule of Changes in Total Common Stockholders' Equity

The Company’s changes in total equity for the three months ended March 31, 2024 and 2023 were as follows:

	Three Months Ended March 31, 2024
	Common Stock			Additional Paid-in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2024	57,724	$	577	$	876,583	$	549,573	$	—	$	3,579	$	1,430,312
Net income	—	—		—		69,917		—		(227)		69,690
Issuance of common stock	55	1		1,506		—		—		—		1,507
Repurchase of common stock	(25)	—		(1,142)		—		—		—		(1,142)
Dividends paid on common stock ($0.2800 per share)	—	—		—		(16,164)		—		—		(16,164)
Adjustment for unrecoverable pension benefit plan costs	—	—		—		—		(13,663)		—		(13,663)
Amounts reclassified to earnings (a)	—	—		—		—		297		—		297
Investment in business with noncontrolling interest	—	—		(53)		—		—		53		—
Balance at March 31, 2024	57,754	578		876,894		603,326		(13,366)		3,405		1,470,837

(a) This accumulated other comprehensive loss component is included in the computation of net periodic costs for the Company’s supplemental executive retirement plan (SERP), specifically the following components: amortization of unrecognized (gain) loss and amortization of prior service credit.

	Three Months Ended March 31, 2023
	Common Stock			Additional Paid-in Capital		Retained Earnings		Noncontrolling Interests		Total Equity
	Shares	Amount
	(In thousands)
Balance at January 1, 2023	55,598	$	556	$	760,336	$	556,698	$	4,804	$	1,322,394
Net loss	—	—		—		(22,211)		(123)		(22,334)
Issuance of common stock	420	4		17,380		—		—		17,384
Repurchase of common stock	(27)	—		—		—		—		—
Dividends paid on common stock ($0.2600 per share)	—	—		—		(14,456)		—		(14,456)
Investment in business with noncontrolling interest	—	—		(111)		—		111		—
Balance at March 31, 2023	55,991	560		777,605		520,031		4,792		1,302,988

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Pension Plan and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Schedule of components of net periodic benefit costs for the pension plans and other postretirement benefits

The following table lists components of net periodic benefit costs for the pension plans and other postretirement benefits. The data listed under “pension plan” includes the qualified pension plan and the non-qualified SERP. The data listed under “other benefits” is for all other postretirement benefits.

	Three Months Ended March 31,
	Pension Plan				Other Benefits
	2024		2023		2024		2023
Service cost	$	5,648	$	6,046	$	1,520	$	1,126
Interest cost	8,881		8,746		1,684		1,297
Expected return on plan assets	(13,236)		(13,421)		(2,987)		(2,636)
Amortization of prior service cost	131		131		39		39
Recognized net actuarial (gain) loss	189		(637)		(198)		(581)
Net periodic benefit cost (credit)	$	1,613	$	865	$	58	$	(755)

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Income Taxes (Tables)

3 Months Ended

Mar. 31, 2024

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

The provision for income taxes is shown in the tables below:

	Three Months Ended March 31,
	2024		2023
Income tax (benefit) expense	$	16,859	$	(3,850)

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Regulatory Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2024

Regulated Operations [Abstract]

Schedule of Regulatory Assets and Liabilities

Regulatory assets and liabilities were comprised of the following as of March 31, 2024 and December 31, 2023:

	Recovery Period	March 31, 2024		December 31, 2023
Regulatory Assets
Property-related temporary differences (tax benefits flowed through to customers)	Indefinite	158,486		158,486
Other accrued benefits	Indefinite	26,975		25,363
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable	Various	10,490		10,738
Asset retirement obligations, net	Indefinite	27,495		26,686
IRMA long-term accounts receivable	1 - 2 years	84,593		3,430
MWRAM	1 year	31,066		—
Tank coating	Various	20,112		19,602
Recoverable property losses	Various	2,956		3,121
Pension Cost Balancing Account (PCBA)	Various	4,314		4,182
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable	1 year	10,787		2,459
Other regulatory assets	Various	7,227		3,554
Total Regulatory Assets		$	384,501	$	257,621
Regulatory Liabilities
Cost of removal		$	456,471	$	447,356
Future tax benefits due to customers		118,051		118,051
Pension and retiree group health		102,255		88,728
Incremental cost balancing account (ICBA)		10,795		—
IRMA long-term regulatory liability		6,993		—
Health Cost Balancing Account (HCBA)		4,291		3,242
PCBA		11,220		8,972
Conservation Expense Balancing Account		1,324		1,200
Net WRAM and MCBA long-term payable		3,082		2,071
Other components of net periodic benefit cost		13,300		10,348
RSF regulatory liability		—		2,116
Other regulatory liabilities		2,122		1,633
Total Regulatory Liabilities		$	729,904	$	683,717

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Fair Value of Financial Assets and Liabilities (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Value of Long-term Debt

	March 31, 2024
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,053,275	$	—	$	939,102	$	—	$	939,102

	December 31, 2023
			Fair Value
	Cost		Level 1		Level 2		Level 3		Total
Long-term debt, including current maturities, net	$	1,053,440	$	—	$	965,444	$	—	$	965,444

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Organization and Operations and Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2024 segment
Noncontrolling Interest [Line Items]
Number of reportable segments	1
BVRT Water Company
Noncontrolling Interest [Line Items]
Noncontrolling interest	7.40%

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Summary of Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	$ 154,900	$ 145,225
Regulatory balancing account revenue	115,849	(14,125)
Operating revenue	270,749	131,100
Total non-regulated revenue	5,098	4,623
Residential
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	92,492	84,035
Business
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	34,549	31,974
Multiple residential
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	16,869	14,997
Industrial
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	6,640	5,634
Public authorities
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	6,962	6,425
Other
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	(2,612)	2,160
Operating and maintenance revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	3,248	3,235
Other non-regulated revenue
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	1,229	782
Non-regulated revenue from contracts with customers
Disaggregation of Revenue [Line Items]
Revenue from contracts with customers	4,477	4,017
Lease revenue	621	606
Total non-regulated revenue	$ 5,098	$ 4,623

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Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	4 Months Ended	15 Months Ended
	Mar. 31, 2024	Apr. 30, 2024	Mar. 31, 2024
Disaggregation of Revenue [Line Items]
Maximum collection period in which deferred net WRAM and MCBA revenues and associated costs will be recognized	24 months
Subsequent Event
Disaggregation of Revenue [Line Items]
Application amount for eligible customer arrearages		$ 82.0
IRMA long-term regulatory liability
Disaggregation of Revenue [Line Items]
Regulated revenue			$ 80.7
MWRAM
Disaggregation of Revenue [Line Items]
Regulated revenue			$ 31.1

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Summary of Significant Accounting Policies - Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 2,854	$ 5,629
Provision for credit loss expense	1,052	2,480
Write-offs	(1,288)	(5,795)
Recoveries	126	540
Total ending allowance balance	$ 2,744	$ 2,854

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Summary of Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Cash and cash equivalents	$ 42,814	$ 39,591
Restricted cash	45,449	45,375
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows	$ 88,263	$ 84,966	$ 86,439	$ 85,025

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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Stock-based Compensation
Recorded compensation costs for the RSAs and RSUs	$ 0.7	$ 0.1
RSAs
Stock-based Compensation
Period for recognition	1 year 7 months 6 days
Unrecognized compensation cost	$ 1.3
Performance-Based Restricted Stock Unit Awards (RSUs)
Stock-based Compensation
Period for recognition	1 year 6 months
Unrecognized compensation cost	$ 2.0
Performance period	3 years
Performance-Based Restricted Stock Unit Awards (RSUs) | Minimum
Stock-based Compensation
Options vested on anniversary date	0.00%
Performance-Based Restricted Stock Unit Awards (RSUs) | Maximum
Stock-based Compensation
Options vested on anniversary date	200.00%
Officer | RSAs
Stock-based Compensation
Vesting period	36 months
Period for recognition	36 months
Director | RSAs
Stock-based Compensation
Vesting period	12 months
Period for recognition	12 months

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Stock-Based Compensation - RSAs & Performance-Based RSUs (Details)	3 Months Ended
	Mar. 31, 2024 $ / shares shares
RSAs
Number of shares
Beginning balance (in shares) | shares	53,303
Vested (in shares) | shares	(28,843)
Ending balance (in shares) | shares	24,460
Weighted average price at grant
Beginning balance (in dollars per share) | $ / shares	$ 55.48
Vested (in dollars per share) | $ / shares	55.23
Ending balance (in dollars per share) | $ / shares	$ 55.78
RSUs
Number of shares
Beginning balance (in shares) | shares	93,078
Performance criteria adjustment (in shares) | shares	13,735
Vested (in shares) | shares	(36,394)
Ending balance (in shares) | shares	70,419
Weighted average price at grant
Beginning balance (in dollars per share) | $ / shares	$ 55.41
Performance criteria adjustment (in dollars per share) | $ / shares	53.96
Vested (in dollars per share) | $ / shares	53.96
Ending balance (in dollars per share) | $ / shares	$ 55.87

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Equity - Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Apr. 29, 2022	Mar. 31, 2023	Mar. 31, 2024
Equity [Abstract]
Maximum consideration on transaction	$ 350.0
Sale of stock, agreement term	3 years
Sale of stock, number of shares issued in transaction (in shares)		326,042
Issuance of common stock		$ 18.2
Payments for commissions		$ 0.2
Service costs and actuarial gains and losses reclassified to other comprehensive loss			$ 13.7

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Equity - Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)	57,724,000
Balance at beginning of period	$ 1,430,312	$ 1,322,394
Net income (loss)	69,690	(22,334)
Issuance of common stock	1,507	17,384
Repurchase of common stock	(1,142)	0
Dividends paid on common stock	(16,164)	(14,456)
Adjustment for unrecoverable pension benefit plan costs	(13,663)
Amounts reclassified to earnings	297
Investment in business with noncontrolling interest	$ 0	0
Balance at end of period (in shares)	57,754,000
Balance at end of period	$ 1,470,837	$ 1,302,988
Dividends paid on common stock (in dollars per share)	$ 0.2800	$ 0.2600
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)	57,724,000	55,598,000
Balance at beginning of period	$ 577	$ 556
Issuance of common stock (in shares)	55,000	420,000
Issuance of common stock	$ 1	$ 4
Repurchase of common stock (in shares)	(25,000)	(27,000)
Balance at end of period (in shares)	57,754,000	55,991,000
Balance at end of period	$ 578	$ 560
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	876,583	760,336
Issuance of common stock	1,506	17,380
Repurchase of common stock	(1,142)
Investment in business with noncontrolling interest	(53)	(111)
Balance at end of period	876,894	777,605
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	549,573	556,698
Net income (loss)	69,917	(22,211)
Dividends paid on common stock	(16,164)	(14,456)
Balance at end of period	603,326	520,031
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	0
Adjustment for unrecoverable pension benefit plan costs	(13,663)
Amounts reclassified to earnings	297
Balance at end of period	(13,366)
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period	3,579	4,804
Net income (loss)	(227)	(123)
Investment in business with noncontrolling interest	53	111
Balance at end of period	$ 3,405	$ 4,792

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Pension Plan and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pension Plan
Pension Plan and Other Postretirement Benefits
Employer cash contributions	$ 0	$ 2,900
Estimated cash contributions in the current fiscal year	700
Components of the pension plans and other postretirement benefits
Service cost	5,648	6,046
Interest cost	8,881	8,746
Expected return on plan assets	(13,236)	(13,421)
Amortization of prior service cost	131	131
Recognized net actuarial (gain) loss	189	(637)
Net periodic benefit cost (credit)	1,613	865
Other Benefits
Pension Plan and Other Postretirement Benefits
Employer cash contributions	0	200
Estimated cash contributions in the current fiscal year	200
Components of the pension plans and other postretirement benefits
Service cost	1,520	1,126
Interest cost	1,684	1,297
Expected return on plan assets	(2,987)	(2,636)
Amortization of prior service cost	39	39
Recognized net actuarial (gain) loss	(198)	(581)
Net periodic benefit cost (credit)	$ 58	$ (755)

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Short-term and Long-term Borrowings (Details) - USD ($)		3 Months Ended
	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Cal Water
Debt Instrument [Line Items]
Outstanding borrowings		$ 215,000,000		$ 130,000,000
Parent Company
Debt Instrument [Line Items]
Outstanding borrowings		$ 65,000,000		$ 50,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 600,000,000		$ 600,000,000
Debt instrument, term	5 years
Average borrowing rate		6.38%	5.49%
Revolving Credit Facility | Base Rate | Minimum
Debt Instrument [Line Items]
Interest rate	0.00%
Revolving Credit Facility | Base Rate | Maximum
Debt Instrument [Line Items]
Interest rate	0.25%
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum
Debt Instrument [Line Items]
Interest rate	0.80%
Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum
Debt Instrument [Line Items]
Interest rate	1.25%
Revolving Credit Facility | Cal Water
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 400,000,000		$ 400,000,000
Incremental expansion of borrowing capacity	150,000,000		150,000,000
Revolving Credit Facility | Parent Company
Debt Instrument [Line Items]
Maximum borrowing capacity	200,000,000		200,000,000
Incremental expansion of borrowing capacity	$ 50,000,000		$ 50,000,000

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Income Taxes - Provision for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Income tax (benefit) expense	$ 16,859	$ (3,850)

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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Tax Disclosure [Abstract]
Decrease in income tax expense	$ 20,700
Income tax expense (benefit)	$ 16,859	$ (3,850)
Effective tax rate estimate	19.60%	14.60%
Unrecognized tax benefits	$ 16,600	$ 14,000
Tax benefits that, if recognized, would affect the effective tax rate	$ 5,000	$ 4,500

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Regulatory Assets and Liabilities - Schedule of Regulatory Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	$ 384,501	$ 257,621
Total Regulatory Liabilities	729,904	683,717
Cost of removal
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	456,471	447,356
Future tax benefits due to customers
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	118,051	118,051
Pension and retiree group health
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	102,255	88,728
Incremental cost balancing account (ICBA)
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	10,795	0
IRMA long-term regulatory liability
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	6,993	0
Health Cost Balancing Account (HCBA)
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	4,291	3,242
PCBA
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	11,220	8,972
Conservation Expense Balancing Account
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	1,324	1,200
Net WRAM and MCBA long-term payable
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	3,082	2,071
Other components of net periodic benefit cost
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	13,300	10,348
RSF regulatory liability
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	0	2,116
Other regulatory liabilities
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Liabilities	2,122	1,633
Future tax benefits due to customers
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	158,486	158,486
Other accrued benefits
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	26,975	25,363
Net WRAM and Modified Cost Balancing Account (MCBA) long-term accounts receivable
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	10,490	10,738
Asset retirement obligations, net
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	27,495	26,686
IRMA long-term accounts receivable
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	$ 84,593	3,430
MWRAM
Regulatory Assets and Liabilities [Line Items]
Recovery Period	1 year
Total Regulatory Assets	$ 31,066	0
Tank coating
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	20,112	19,602
Recoverable property losses
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	2,956	3,121
PCBA
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	$ 4,314	4,182
Customer assistance program (CAP) and Rate support fund (RSF) accounts receivable
Regulatory Assets and Liabilities [Line Items]
Recovery Period	1 year
Total Regulatory Assets	$ 10,787	2,459
Other regulatory assets
Regulatory Assets and Liabilities [Line Items]
Total Regulatory Assets	$ 7,227	$ 3,554
Minimum | IRMA long-term accounts receivable
Regulatory Assets and Liabilities [Line Items]
Recovery Period	1 year
Maximum | IRMA long-term accounts receivable
Regulatory Assets and Liabilities [Line Items]
Recovery Period	2 years

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Regulatory Assets and Liabilities - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		15 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Dec. 31, 2023
Schedule of Regulatory Assets and Liabilities [Line Items]
Water production costs	$ 64,185	$ 55,008
Short-term portion of the regulatory assets	56,125		$ 56,125	$ 64,240
Short-term portion of the regulatory liabilities	$ 16,644		16,644	$ 21,540
Incremental cost balancing account (ICBA)
Schedule of Regulatory Assets and Liabilities [Line Items]
Water production costs			1,600
Incremental cost balancing account (ICBA)
Schedule of Regulatory Assets and Liabilities [Line Items]
Water production costs			$ 10,800

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Commitments and Contingencies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Mar. 31, 2024
Lessee, Lease, Description [Line Items]
Contingency loss recognized liability	$ 6.0		$ 6.9
Camino Real | Supply Commitment
Lessee, Lease, Description [Line Items]
Payments for other commitments	$ 22.3	$ 21.5

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Fair Value of Financial Assets and Liabilities - Narrative (Details)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Risk premium (as a percent)	0.60%

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Fair Value of Financial Assets and Liabilities - Schedule of Long Term Debt at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Cost
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	$ 1,053,275	$ 1,053,440
Fair Value
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	939,102	965,444
Fair Value | Level 1
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	0	0
Fair Value | Level 2
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	939,102	965,444
Fair Value | Level 3
Fair Value of Financial Assets and Liabilities
Long-term debt, including current maturities, net	$ 0	$ 0

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Subsequent Event (Details) - Subsequent Event $ in Millions	4 Months Ended
	Apr. 30, 2024 USD ($)
Subsequent Event [Line Items]
Application amount for eligible customer arrearages	$ 82.0
Application amount for program administrative costs	$ 1.0