XML 58 R17.htm IDEA: XBRL DOCUMENT v3.3.0.814
Contractual Obligations, Commercial Commitments and Contingencies
9 Months Ended
Sep. 30, 2015
Entity Information [Line Items]  
Contractual Obligations, Commercial Commitments and Contingencies
Note 10 – Contractual Obligations, Commercial Commitments and Contingencies

Guarantees
In the normal course of business, DPL enters into various agreements with its wholly owned subsidiaries, DPLE and DPLER, providing financial or performance assurance to third parties. These agreements are entered into primarily to support or enhance the creditworthiness otherwise attributed to these subsidiaries on a stand-alone basis, thereby facilitating the extension of sufficient credit to accomplish these subsidiaries’ intended commercial purposes.

At September 30, 2015, DPL had $19.3 million of guarantees to third parties for future financial or performance assurance under such agreements: $2.0 million of guarantees on behalf of DPLER and $17.3 million of guarantees on behalf of DPLE. The guarantee arrangements entered into by DPL with these third parties cover select present and future obligations of DPLE and DPLER to such beneficiaries and are terminable by DPL upon written notice to the beneficiaries within a certain time. The carrying amount of obligations for commercial transactions covered by these guarantees and recorded in our Condensed Consolidated Balance Sheets was $1.1 million at September 30, 2015.

To date, DPL has not incurred any losses related to the guarantees of DPLER’s or DPLE’s obligations and we believe it is remote that DPL would be required to perform or incur any losses in the future associated with any of the above guarantees.

DP&L – Equity Ownership Interest
DP&L owns a 4.9% equity ownership interest in OVEC, an electric generation company, which is recorded using the cost method of accounting under GAAP. As of September 30, 2015, DP&L could be responsible for the repayment of 4.9%, or $73.9 million, of a $1,507.9 million debt obligation that has maturities from 2018 to 2040. This would only happen if OVEC defaulted on its debt payments. As of September 30, 2015, we have no knowledge of such a default.

Commercial Commitments and Contractual Obligations
There have been no material changes, outside the ordinary course of business, to our commercial commitments and to the information disclosed in the contractual obligations table in our Form 10-K for the fiscal year ended December 31, 2014.

Contingencies
In the normal course of business, we are subject to various lawsuits, actions, proceedings, claims and other matters asserted under various laws and regulations. We believe the amounts provided in our Condensed Consolidated Financial Statements, as prescribed by GAAP, are adequate in light of the probable and estimable contingencies. However, there can be no assurances that the actual amounts required to satisfy alleged liabilities from various legal proceedings, claims, tax examinations and other matters discussed below, and to comply with applicable laws and regulations, will not exceed the amounts reflected in our Condensed Consolidated Financial Statements. As such, costs, if any, that may be incurred in excess of those amounts provided as of September 30, 2015, cannot be reasonably determined.

Environmental Matters
DPL’s and DP&L’s facilities and operations are subject to a wide range of federal, state and local environmental regulations and laws. The environmental issues that may affect us include:

The federal CAA and state laws and regulations (including State Implementation Plans) which require compliance, obtaining permits and reporting as to air emissions,
Litigation with federal and certain state governments and certain special interest groups regarding whether modifications to or maintenance of certain coal-fired generating stations require additional permitting or pollution control technology, or whether emissions from coal-fired generating stations cause or contribute to climate change,
Rules and future rules issued by the USEPA and the Ohio EPA that require substantial reductions in SO2, particulates, mercury, acid gases, NOx, and other air emissions. DP&L has installed emission control technology and is taking other measures to comply with required and anticipated reductions,
Rules and future rules issued by the USEPA, the Ohio EPA or other authorities that require reporting and reductions of GHGs,
Rules and future rules issued by the USEPA associated with the federal Clean Water Act, which prohibits the discharge of pollutants into waters of the United States except pursuant to appropriate permits, and
Solid and hazardous waste laws and regulations, which govern the management and disposal of certain waste. The majority of solid waste created from the combustion of coal and fossil fuels is fly ash and other coal combustion by-products.
In addition to imposing continuing compliance obligations, these laws and regulations authorize the imposition of substantial penalties for noncompliance, including fines, injunctive relief and other sanctions. In the normal course of business, we have investigatory and remedial activities underway at our facilities to comply, or to determine compliance, with such regulations. We record liabilities for loss contingencies related to environmental matters when a loss is probable of occurring and can be reasonably estimated in accordance with the provisions of GAAP. At September 30, 2015, and December 31, 2014, we had accruals of approximately $0.7 million and $0.8 million, respectively, for environmental matters and other claims. We also have a number of environmental matters for which we have not accrued loss contingencies because the risk of loss is not probable or a loss cannot be reasonably estimated, which are disclosed in the paragraphs below. We evaluate the potential liability related to environmental matters quarterly and may revise our accruals. Such revisions in the estimates of the potential liabilities could have a material adverse effect on our results of operations, financial condition or cash flows.

We have several pending environmental matters associated with our EGUs and stations. Some of these matters could have material adverse effects on the operation of such EGUs and stations or our financial condition.

National Ambient Air Quality Standards
Effective August 23, 2010, the USEPA implemented its revisions to its primary NAAQS for SO2 replacing the previous 24-hour standard and annual standard with a one-hour standard. Non-attainment areas will be required to meet the 2010 standard by October 2018. On August 21, 2015, the USEPA finalized a data requirements rule for air agencies to ascertain attainment characterization more extensively across the country by additional modeling and/or monitoring requirements of areas with sources that exceed specified thresholds of SO2 emissions, which became effective on September 21, 2015. The rule directs state agencies to provide data to characterize air quality in areas with sources of SO2 above 2,000 tons per year to identify maximum 1-hour concentrations of SO2 in ambient air. The rule could require installation of monitors at one or more of DP&L’s coal-fired power plants and result in additional non-attainment designations that could impact our operations. DP&L is unable to determine the effect of the rule on its operations.

On October 1, 2015, the USEPA released a final rule lowering the NAAQS for ozone to 70 parts per billion from 75 parts per billion. We are currently reviewing the rule and assessing the impact on our operations. We cannot at this time determine the impact of this rule, but it could be material.

Climate Change Legislation and Regulation
On October 23, 2015, the USEPA's final CO2 emission rules for existing power plants (called the Clean Power Plan) were published in the Federal Register with an effective date of December 22, 2015. Additionally, the final NSPS for CO2 emissions from new, modified and reconstructed fossil-fuel-fired power plants were published in the Federal Register on October 23, 2015 and are effective immediately. The Clean Power Plan provides for interim emissions performance rates that must be achieved beginning in 2022 and final emissions performance rates that must be achieved by 2030. Prior to the rule's publication in the Federal Register, fifteen states, including Ohio, filed a petition in the U.S. Court of Appeals for the D.C. Circuit seeking a stay of the Clean Power Plan, which was denied by the Court in September 2015. On October 23, 2015, several states and industry groups filed petitions in the D.C. Circuit Court of Appeals challenging the Clean Power Plan as published in the Federal Register, including a twenty-four state consortium that includes Ohio. The D.C. Circuit Court has issued orders consolidating the current pending challenges to the CPP under the lead case, West Virginia v. EPA. On October 23, 2015, North Dakota filed a petition for review of the GHG NSPS in the D.C. Circuit Court, and a coalition of environmental groups have moved to intervene on behalf of EPA in both the CPP and NSPS litigation. These state petitioners, as well as industry groups separately challenging the rule, have filed motions with the D.C. Circuit Court requesting a stay of the rule. The D.C. Circuit Court has issued orders consolidating the current pending challenges to the Clean Power Plan under the lead case, West Virginia v. USEPA. On October 23, 2015, North Dakota filed a petition for review of the CO2 NSPS in the D.C. Circuit Court, and a coalition of environmental groups have moved to intervene on behalf of USEPA in both the Clean Power Plan and NSPS litigation. Additional legal challenges are expected. We are currently reviewing the rule and assessing the impact on our operations. Our business, financial condition or results of operations could be materially and adversely affected by this rule.

Clean Water Act – Regulation of Water Discharge
In December 2006, DP&L submitted a renewal application for the Stuart generating station NPDES permit that was due to expire on June 30, 2007. The Ohio EPA issued a draft permit that was received in November 2008. In September 2010, the USEPA formally objected to the November 2008, draft permit due to questions regarding the basis for the alternate thermal limitation. The Ohio EPA issued a draft permit in December 2011 and a public hearing was held in February 2012. The draft permit required DP&L, over the 54 months following issuance of a final permit, to take undefined actions to lower the temperature of its discharged water to a level unachievable by the station under its current design or alternatively make other significant modifications to the cooling water system. DP&L submitted comments to the draft permit. In November 2012, the Ohio EPA issued another draft which included a compliance schedule for performing a study to justify an alternate thermal limitation and to which DP&L submitted comments. In December 2012, the USEPA formally withdrew their objection to the permit. On January 7, 2013, the Ohio EPA issued a final permit.

On February 1, 2013, DP&L appealed various aspects of the final permit to the Environmental Review Appeals Commission. A hearing before the Commission has been rescheduled for March 2016. Depending on the outcome of the appeal process, the effects on DP&L’s business, financial condition or results of operations could be material.

On September 30, 2015, the USEPA released its final rule regulating various wastewater streams from steam electric power plants. The regulations were published in the Federal Register on November 3, 2015. We are reviewing the the rule to assess the potential impact on our operations and our current or future NPDES permits.

Regulation of Waste Disposal
In September 2002, DP&L and other parties received a special notice that the USEPA considers us to be a PRP for the clean-up of hazardous substances at the South Dayton Dump landfill site. In August 2005, DP&L and other parties received a general notice regarding the performance of a Remedial Investigation and Feasibility Study (RI/FS) under a Superfund Alternative Approach. In October 2005, DP&L received a special notice letter inviting it to enter into negotiations with the USEPA to conduct the RI/FS. No recent activity has occurred with respect to that notice or PRP status. On August 16, 2006, an Administrative Settlement Agreement and Order on Consent (“ASAOC”) for the site was executed and became effective among a group of PRPs, not including DP&L, and the USEPA. On August 25, 2009, the USEPA issued an Administrative Order requiring that access to DP&L’s service center building site, which is across the street from the landfill site, be given to the USEPA and the existing PRP group to help determine the extent of the landfill site’s contamination as well as to assess whether certain chemicals used at the service center building site might have migrated through groundwater to the landfill site. DP&L granted such access and drilling of soil borings and installation of monitoring wells occurred in late 2009 and early 2010. On May 24, 2010, three members of the existing PRP group, Hobart Corporation, Kelsey-Hayes Company and NCR Corporation, filed a civil complaint in the United States District Court for the Southern District of Ohio (the “District Court”) against DP&L and numerous other defendants alleging that DP&L and the other defendants contributed to the contamination at the landfill site and seeking reimbursement of the PRP group’s costs associated with the investigation and remediation of the site. On February 10, 2011, the District Court Judge dismissed claims against DP&L that related to allegations that chemicals used by DP&L at its service center contributed to the landfill site’s contamination. The District Court Judge, however, did not dismiss claims alleging financial responsibility for remediation costs based on hazardous substances from DP&L that were allegedly delivered by truck directly to the landfill. Discovery, including depositions of past and present DP&L employees, was conducted in 2012. On February 8, 2013, the District Court Judge granted DP&L’s motion for summary judgment on statute of limitations grounds with respect to claims seeking a contribution toward the costs that are expected to be incurred by the PRP group in performing an RI/FS under the August 15, 2006 ASAOC. That summary judgment ruling was appealed on March 4, 2013, and on July 14, 2014, a three-judge panel of the U.S. Court of Appeals for the 6th Circuit affirmed the lower Court’s ruling and subsequently denied a request by the PRP group for rehearing. On November 14, 2014, the PRP group appealed the decision to the U.S. Supreme Court, but the writ of certiorari was denied by the Court on January 20, 2015. On April 5, 2013, the PRP group entered into a second ASAOC (the "2013 ASAOC") relating primarily to vapor intrusion from under some of the buildings at the landfill site. On April 13, 2013, as amended July 30, 2013, the PRP group filed another civil complaint against DP&L and numerous other defendants alleging that each defendant contributed to the contamination of the site by delivering hazardous waste to the site or by releasing hazardous waste on other sites that migrated to the landfill site. On February 18, 2014, after considering various motions and alternative grounds to dismiss, the District Court Judge dismissed some of the alleged grounds for relief that the PRP group had made, but ruled in the PRP group’s favor with respect to motions to dismiss the case in its entirety finding, among other things, that the 2013 ASAOC involved a different scope of work and thus the contributions sought were not seeking the same remedy that had been dismissed in the first civil suit. Appeals of this ruling are pending before the 6th Circuit Court of Appeals. On January 14, 2015, the PRP group served DP&L and other defendants a request for production of documents related to any waste management or waste disposal surveys. Information responsive to this request was provided on February 17, 2015. In addition, on January 16, 2015, the USEPA issued a Special Notice Letter and Section 104(e) Information Request to DP&L and other defendants, requesting historical information related to waste management practices that may be relevant to the site. DP&L responded to this request on March 27, 2015. In June 2015, DP&L was again requested to grant access to the DP&L service building property for the purpose of collecting groundwater samples from selected monitoring wells. DP&L granted access and groundwater sampling took place in June 2015. As a result of an August 11, 2015 meeting among the parties, the parties have agreed to stay the case in order to explore the possibility of a negotiated resolution of some or all of the issues.  DP&L is unable to predict the outcome of these actions by the plaintiffs and USEPA. Additionally, the District Court’s 2013 ruling and the Court of Appeals’ affirmation of that ruling in 2014 does not address future litigation that may arise with respect to actual remediation costs. While DP&L is unable to predict the outcome of these and any future matters, if DP&L were required to contribute to the clean-up of the site, it could have a material adverse effect on its business, financial condition or results of operations.

Regulation of Ash Ponds
There has been increasing advocacy to regulate coal combustion residuals (CCR). On June 21, 2010, the USEPA published a proposed rule seeking comments on two options under consideration for the regulation of coal combustion byproducts including regulating the material as a hazardous waste under RCRA Subtitle C or as a solid waste under RCRA Subtitle D. The USEPA released its final rule in December 2014, designating coal combustion residuals that are not beneficially reused as non-hazardous solid waste under RCRA Subtitle D. The rule was published in the Federal Register in April 2015 and became effective October 19, 2015, and applies new detailed management practices to new and existing landfills and surface impoundments, including lateral expansions of such units. Based on our review of the rule, we have adjusted our AROs related to ash ponds (see Note 8), but we are currently unable to determine the full impact of the rule as it is contingent upon future activities required by the regulation.
THE DAYTON POWER AND LIGHT COMPANY [Member]  
Entity Information [Line Items]  
Contractual Obligations, Commercial Commitments and Contingencies
Note 11 – Contractual Obligations, Commercial Commitments and Contingencies

Equity Ownership Interest
DP&L owns a 4.9% equity ownership interest in OVEC, an electric generation company, which is recorded using the cost method of accounting under GAAP. As of September 30, 2015, DP&L could be responsible for the repayment of 4.9%, or $73.9 million, of a $1,507.9 million debt obligation that has maturities from 2018 to 2040. This would only happen if OVEC defaulted on its debt payments. As of September 30, 2015, we have no knowledge of such a default.

Commercial Commitments and Contractual Obligations
There have been no material changes, outside the ordinary course of business, to our commercial commitments and to the information disclosed in the contractual obligations table in our Form 10-K for the fiscal year ended December 31, 2014.

Contingencies
In the normal course of business, we are subject to various lawsuits, actions, proceedings, claims and other matters asserted under various laws and regulations. We believe the amounts provided in our Condensed Financial Statements, as prescribed by GAAP, are adequate in light of the probable and estimable contingencies. However, there can be no assurances that the actual amounts required to satisfy alleged liabilities from various legal proceedings, claims, tax examinations and other matters discussed below, and to comply with applicable laws and regulations, will not exceed the amounts reflected in our Condensed Consolidated Financial Statements. As such, costs, if any, that may be incurred in excess of those amounts provided as of September 30, 2015, cannot be reasonably determined.

Environmental Matters
DP&L’s facilities and operations are subject to a wide range of federal, state and local environmental regulations and laws. The environmental issues that may affect us include:

The federal CAA and state laws and regulations (including State Implementation Plans) which require compliance, obtaining permits and reporting as to air emissions,
Litigation with federal and certain state governments and certain special interest groups regarding whether modifications to or maintenance of certain coal-fired generating stations require additional permitting or pollution control technology, or whether emissions from coal-fired generating stations cause or contribute to climate change,
Rules and future rules issued by the USEPA and the Ohio EPA that require substantial reductions in SO2, particulates, mercury, acid gases, NOx, and other air emissions. DP&L has installed emission control technology and is taking other measures to comply with required and anticipated reductions,
Rules and future rules issued by the USEPA, the Ohio EPA or other authorities that require reporting and reductions of GHGs,
Rules and future rules issued by the USEPA associated with the federal Clean Water Act, which prohibits the discharge of pollutants into waters of the United States except pursuant to appropriate permits, and
Solid and hazardous waste laws and regulations, which govern the management and disposal of certain waste. The majority of solid waste created from the combustion of coal and fossil fuels is fly ash and other coal combustion by-products.
In addition to imposing continuing compliance obligations, these laws and regulations authorize the imposition of substantial penalties for noncompliance, including fines, injunctive relief and other sanctions. In the normal course of business, we have investigatory and remedial activities underway at our facilities to comply, or to determine compliance, with such regulations. We record liabilities for loss contingencies related to environmental matters when a loss is probable of occurring and can be reasonably estimated in accordance with the provisions of GAAP. At September 30, 2015, and December 31, 2014, we had accruals of approximately $0.7 million and $0.8 million, respectively, for environmental matters and other claims. We also have a number of environmental matters for which we have not accrued loss contingencies because the risk of loss is not probable or a loss cannot be reasonably estimated, which are disclosed in the paragraphs below. We evaluate the potential liability related to environmental matters quarterly and may revise our accruals. Such revisions in the estimates of the potential liabilities could have a material adverse effect on our results of operations, financial condition or cash flows.

We have several pending environmental matters associated with our EGUs and stations. Some of these matters could have material adverse effects on the operation of such EGUs and stations or our financial condition.

National Ambient Air Quality Standards
Effective August 23, 2010, the USEPA implemented its revisions to its primary NAAQS for SO2 replacing the previous 24-hour standard and annual standard with a one-hour standard. Non-attainment areas will be required to meet the 2010 standard by October 2018. On August 21, 2015, the USEPA finalized a data requirements rule for air agencies to ascertain attainment characterization more extensively across the country by additional modeling and/or monitoring requirements of areas with sources that exceed specified thresholds of SO2 emissions, which became effective on September 21, 2015. The rule directs state agencies to provide data to characterize air quality in areas with sources of SO2 above 2,000 tons per year to identify maximum 1-hour concentrations of SO2 in ambient air. The rule could require installation of monitors at one or more of DP&L’s coal-fired power plants and result in additional non-attainment designations that could impact our operations. DP&L is unable to determine the effect of the rule on its operations.

On October 1, 2015, the USEPA released a final rule lowering the NAAQS for ozone to 70 parts per billion from 75 parts per billion. We are currently reviewing the rule and assessing the impact on our operations. We cannot at this time determine the impact of this rule, but it could be material.

Climate Change Legislation and Regulation
On October 23, 2015, the USEPA's final CO2 emission rules for existing power plants (called the Clean Power Plan) were published in the Federal Register with an effective date of December 22, 2015. Additionally, the final NSPS for CO2 emissions from new, modified and reconstructed fossil-fuel-fired power plants were published in the Federal Register on October 23, 2015 and are effective immediately. The Clean Power Plan provides for interim emissions performance rates that must be achieved beginning in 2022 and final emissions performance rates that must be achieved by 2030. Prior to the rule's publication in the Federal Register, fifteen states, including Ohio, filed a petition in the U.S. Court of Appeals for the D.C. Circuit seeking a stay of the Clean Power Plan, which was denied by the Court in September 2015. On October 23, 2015, several states and industry groups filed petitions in the D.C. Circuit Court of Appeals challenging the Clean Power Plan as published in the Federal Register, including a twenty-four state consortium that includes Ohio. The D.C. Circuit Court has issued orders consolidating the current pending challenges to the CPP under the lead case, West Virginia v. EPA. On October 23, 2015, North Dakota filed a petition for review of the GHG NSPS in the D.C. Circuit Court, and a coalition of environmental groups have moved to intervene on behalf of EPA in both the CPP and NSPS litigation. These state petitioners, as well as industry groups separately challenging the rule, have filed motions with the D.C. Circuit Court requesting a stay of the rule. The D.C. Circuit Court has issued orders consolidating the current pending challenges to the Clean Power Plan under the lead case, West Virginia v. USEPA. On October 23, 2015, North Dakota filed a petition for review of the CO2 NSPS in the D.C. Circuit Court, and a coalition of environmental groups have moved to intervene on behalf of USEPA in both the Clean Power Plan and NSPS litigation. Additional legal challenges are expected. We are currently reviewing the rule and assessing the impact on our operations. Our business, financial condition or results of operations could be materially and adversely affected by this rule.

Clean Water Act – Regulation of Water Discharge
In December 2006, DP&L submitted a renewal application for the Stuart generating station NPDES permit that was due to expire on June 30, 2007. The Ohio EPA issued a draft permit that was received in November 2008. In September 2010, the USEPA formally objected to the November 2008, draft permit due to questions regarding the basis for the alternate thermal limitation. The Ohio EPA issued a draft permit in December 2011 and a public hearing was held in February 2012. The draft permit required DP&L, over the 54 months following issuance of a final permit, to take undefined actions to lower the temperature of its discharged water to a level unachievable by the station under its current design or alternatively make other significant modifications to the cooling water system. DP&L submitted comments to the draft permit. In November 2012, the Ohio EPA issued another draft which included a compliance schedule for performing a study to justify an alternate thermal limitation and to which DP&L submitted comments. In December 2012, the USEPA formally withdrew their objection to the permit. On January 7, 2013, the Ohio EPA issued a final permit.

On February 1, 2013, DP&L appealed various aspects of the final permit to the Environmental Review Appeals Commission. A hearing before the Commission has been rescheduled for March 2016. Depending on the outcome of the appeal process, the effects on DP&L’s business, financial condition or results of operations could be material.

On September 30, 2015, the USEPA released its final rule regulating various wastewater streams from steam electric power plants. The regulations were published in the Federal Register on November 3, 2015. We are reviewing the the rule to assess the potential impact on our operations and our current or future NPDES permits.

Regulation of Waste Disposal
In September 2002, DP&L and other parties received a special notice that the USEPA considers us to be a PRP for the clean-up of hazardous substances at the South Dayton Dump landfill site. In August 2005, DP&L and other parties received a general notice regarding the performance of a Remedial Investigation and Feasibility Study (RI/FS) under a Superfund Alternative Approach. In October 2005, DP&L received a special notice letter inviting it to enter into negotiations with the USEPA to conduct the RI/FS. No recent activity has occurred with respect to that notice or PRP status. On August 16, 2006, an Administrative Settlement Agreement and Order on Consent (“ASAOC”) for the site was executed and became effective among a group of PRPs, not including DP&L, and the USEPA. On August 25, 2009, the USEPA issued an Administrative Order requiring that access to DP&L’s service center building site, which is across the street from the landfill site, be given to the USEPA and the existing PRP group to help determine the extent of the landfill site’s contamination as well as to assess whether certain chemicals used at the service center building site might have migrated through groundwater to the landfill site. DP&L granted such access and drilling of soil borings and installation of monitoring wells occurred in late 2009 and early 2010. On May 24, 2010, three members of the existing PRP group, Hobart Corporation, Kelsey-Hayes Company and NCR Corporation, filed a civil complaint in the United States District Court for the Southern District of Ohio (the “District Court”) against DP&L and numerous other defendants alleging that DP&L and the other defendants contributed to the contamination at the landfill site and seeking reimbursement of the PRP group’s costs associated with the investigation and remediation of the site. On February 10, 2011, the District Court Judge dismissed claims against DP&L that related to allegations that chemicals used by DP&L at its service center contributed to the landfill site’s contamination. The District Court Judge, however, did not dismiss claims alleging financial responsibility for remediation costs based on hazardous substances from DP&L that were allegedly delivered by truck directly to the landfill. Discovery, including depositions of past and present DP&L employees, was conducted in 2012. On February 8, 2013, the District Court Judge granted DP&L’s motion for summary judgment on statute of limitations grounds with respect to claims seeking a contribution toward the costs that are expected to be incurred by the PRP group in performing an RI/FS under the August 15, 2006 ASAOC. That summary judgment ruling was appealed on March 4, 2013, and on July 14, 2014, a three-judge panel of the U.S. Court of Appeals for the 6th Circuit affirmed the lower Court’s ruling and subsequently denied a request by the PRP group for rehearing. On November 14, 2014, the PRP group appealed the decision to the U.S. Supreme Court, but the writ of certiorari was denied by the Court on January 20, 2015. On April 5, 2013, the PRP group entered into a second ASAOC (the "2013 ASAOC") relating primarily to vapor intrusion from under some of the buildings at the landfill site. On April 13, 2013, as amended July 30, 2013, the PRP group filed another civil complaint against DP&L and numerous other defendants alleging that each defendant contributed to the contamination of the site by delivering hazardous waste to the site or by releasing hazardous waste on other sites that migrated to the landfill site. On February 18, 2014, after considering various motions and alternative grounds to dismiss, the District Court Judge dismissed some of the alleged grounds for relief that the PRP group had made, but ruled in the PRP group’s favor with respect to motions to dismiss the case in its entirety finding, among other things, that the 2013 ASAOC involved a different scope of work and thus the contributions sought were not seeking the same remedy that had been dismissed in the first civil suit. Appeals of this ruling are pending before the 6th Circuit Court of Appeals. On January 14, 2015, the PRP group served DP&L and other defendants a request for production of documents related to any waste management or waste disposal surveys. Information responsive to this request was provided on February 17, 2015. In addition, on January 16, 2015, the USEPA issued a Special Notice Letter and Section 104(e) Information Request to DP&L and other defendants, requesting historical information related to waste management practices that may be relevant to the site. DP&L responded to this request on March 27, 2015. In June 2015, DP&L was again requested to grant access to the DP&L service building property for the purpose of collecting groundwater samples from selected monitoring wells. DP&L granted access and groundwater sampling took place in June 2015. As a result of an August 11, 2015 meeting among the parties, the parties have agreed to stay the case in order to explore the possibility of a negotiated resolution of some or all of the issues.  DP&L is unable to predict the outcome of these actions by the plaintiffs and USEPA. Additionally, the District Court’s 2013 ruling and the Court of Appeals’ affirmation of that ruling in 2014 does not address future litigation that may arise with respect to actual remediation costs. While DP&L is unable to predict the outcome of these and any future matters, if DP&L were required to contribute to the clean-up of the site, it could have a material adverse effect on its business, financial condition or results of operations.

Regulation of Ash Ponds
There has been increasing advocacy to regulate coal combustion residuals (CCR). On June 21, 2010, the USEPA published a proposed rule seeking comments on two options under consideration for the regulation of coal combustion byproducts including regulating the material as a hazardous waste under RCRA Subtitle C or as a solid waste under RCRA Subtitle D. The USEPA released its final rule in December 2014, designating coal combustion residuals that are not beneficially reused as non-hazardous solid waste under RCRA Subtitle D. The rule was published in the Federal Register in April 2015 and became effective October 19, 2015, and applies new detailed management practices to new and existing landfills and surface impoundments, including lateral expansions of such units. Based on our review of the rule, we have adjusted our AROs related to ash ponds (see Note 8), but we are currently unable to determine the full impact of the rule as it is contingent upon future activities required by the regulation.