Company: CNLHP
Filing Date: 2025-02-14
Form Type: 10-K
Source: 0000072741-25-000007
Chunk: 361

Company: CONNECTICUT LIGHT & POWER CO
Filing Date: 2025-02-14
Form: 10-K
Item: Item 8
Chunk 361
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iate contaminated sites and any other infrequent and non-recurring clean-up costs.  A reconciliation of the activity in the environmental reserves is as follows:(Millions of Dollars)EversourceCL&PNSTAR ElectricPSNHBalance as of January 1, 2023$122.6 $13.9 $3.4 $6.1 Additions16.8 2.6 2.5 1.7 Payments/Reductions(11.2)(2.7)(0.5)(0.2)Balance as of December 31, 2023128.2 13.8 5.4 7.6 Additions11.0 0.8 1.9 0.2 Payments/Reductions(11.2)(1.2)(0.7)(1.5)Balance as of December 31, 2024$128.0 $13.4 $6.6 $6.3 The number of environmental sites for which remediation or long-term monitoring, preliminary site work or site assessment is being performed are as follows:EversourceCL&PNSTAR ElectricPSNH2024651514820236516128Included 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.  The reserve balances related to these former MGP sites were $115.9 million and $117.1 million as of December 31, 2024 and 2023, respectively, and related primarily to the natural gas business segment.  As of December 31, 2024, for 17 environmental sites (9 for CL&P and 2 for NSTAR Electric) that are included in the Company's reserve for environmental costs, management cannot reasonably estimate the exposure to loss in excess of the reserve, or range of loss, as these sites are under investigation and/or there is significant uncertainty as to what remedial actions, if any, the Company may be required to undertake.  As of December 31, 2024, $30.7 million (including $5.7 million for CL&P and $1.4 million for NSTAR Electric) had been accrued as a liability for these sites. As of December 31,