Company: CNLHP
Filing Date: 2025-08-04
Form Type: 10-Q
Source: 0001628280-25-037369
Chunk: 93

Company: CONNECTICUT LIGHT & POWER CO
Filing Date: 2025-08-04
Form: 10-Q
Item: Item 8
Chunk 93
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A.    Environmental MattersEversource, CL&P, NSTAR Electric and PSNH are subject to environmental laws and regulations intended to mitigate or remove the effect of past operations and improve or maintain the quality of the environment.  These laws and regulations require the removal or the remedy of the effect on the environment of the disposal or release of certain specified hazardous substances at current and former operating sites.  Eversource, CL&P, NSTAR Electric and PSNH have an active environmental auditing and training program and each believes it is substantially in compliance with all enacted laws and regulations.The number of environmental sites and related reserves for which remediation or long-term monitoring, preliminary site work or site assessment is being performed are as follows:  As of June 30, 2025As of December 31, 2024Number of SitesReserve(in millions)Number of SitesReserve(in millions)Eversource65 $152.2 65 $128.0 CL&P15 13.8 15 13.4 NSTAR Electric14 8.3 14 6.6 PSNH8 9.1 8 6.3 The increase in the reserve balance was due primarily to changes in cost estimates at MGP sites, primarily at NSTAR Gas and Yankee Gas. Included in the number of sites and reserve amounts above are former MGP sites that were operated several decades ago and manufactured natural gas from coal and other processes, which resulted in certain by-products remaining in the environment that may pose a potential risk to human health and the environment, for which Eversource may have potential liability.  Eversource’s reserve balances related to these former MGP sites were $139.1 million and $115.9 million as of June 30, 2025 and December 31, 2024, respectively, and related primarily to the natural gas business segment.  These reserve estimates are subjective in nature as they take into consideration several different remediation options at each specific site.  The reliability and precision of these estimates can be affected by several factors, including new information concerning either the level of contamination at the site, the extent of Eversource's, CL&P's, NSTAR Electric's and PSNH's responsibility for remediation or the extent of remediation required, recently enacted laws and regulations or changes in cost estimates due to certain economic factors.  It is possible that new information or future developments could require a reassessment of the potential exposure to