Company: NPO
Filing Date: 2025-08-05
Form Type: 10-Q
Source: 0001164863-25-000030
Chunk: 4

Company: Enpro Inc.
Filing Date: 2025-08-05
Form: 10-Q
Item: Item 8
Chunk 4
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7, 2017 for the investigation and remediation of these mines. We entered into a First Modification of Original Administrative Settlement Agreement and Order on Consent effective July 8, 2022 for the performance of Engineering Evaluations and Cost Analyses (EE/CA's) of potential remedial options at each of the mines. In 2020, the EPA initiated group discussions with EnPro Holdings and other potentially responsible parties to resolve various technical issues, including the development of cleanup standards. Based on these discussions and subsequent discussions with other responsible parties with similar sites, we have concluded that further remedial work beyond maintenance of and minor repairs to the existing caps is probable, and we have evaluated the feasibility of various remediation scenarios. Our reserve at June 30, 2025 for this site was $11.6 million, which reflects estimated costs to consolidate mining waste on-site and construct enhanced caps for each of the eight uranium mines and is the low end of the range of our reasonably likely liability with respect to these mines. Based on discussions with the EPA, EnPro Holdings will include multiple remedial options in the EE/CA for each of the mines, including an evaluation of consolidating and capping mining wastes on site and alternatives involving the excavation and transport of on-site mining waste to an off-site disposal location.  If required, excavation and transport of mining wastes at one or more of the eight sites for off-site disposal would significantly increase costs, and we are not able at this time to estimate the upper end of a range of liability with respect to these mines.On October 18, 2021, the United States District Court for the District of Arizona approved and entered a Consent Decree pursuant to which the U.S government will reimburse the Company for 35% of necessary costs of response, as defined in 42 U.S.C. section 9601(25), previously or to be in the future incurred by the Company which arise out of or in connection with releases or threatened releases of hazardous substances at or emanating from these mines. Based on current reserve amounts, we 

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expect future contributions of $3.8 million from the U.S. government towards remediation of these mines. This amount is included in other assets in the accompanying consolidated balance sheet at June 30, 2025.GGB Industrial Site Remediation Act (ISRA) Investigation and CleanupUnder the agreement governing the November 2022 sale of GGB to The Timken Company, Enpro retained responsibility for compliance with New Jersey's Industrial Site Remediation