Company: NPO
Filing Date: 2025-11-04
Form Type: 10-Q
Source: 0001628280-25-048610
Chunk: 4

Company: Enpro Inc.
Filing Date: 2025-11-04
Form: 10-Q
Item: Item 8
Chunk 4
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  We entered into an Administrative Settlement Agreement and Order on Consent for Interim Removal Action with the EPA effective November 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. Our reserve at September 30, 2025 for this site was $11.2 million, which reflects estimated costs to consolidate mining waste on-site and construct enhanced caps for each of the eight mines and is the low end of the range of our reasonably likely liability with respect to these mines. In August 2025, EnPro Holdings completed and submitted draft EE/CAs for the two priority mines located in the Cameron Chapter to the EPA for review, including cost estimates for multiple remedial options for each of the mines. The evaluated remedial options include consolidating and capping mining wastes on site on the low end of reasonably likely liability and excavating and transporting  mining waste to an off-site “regional repository” location on the high end of reasonably likely liability. Estimable costs of our reasonably likely liability with respect to the two priority mines range from $3.6 million to $15.9 million based on these two options. The draft EE/CAs that Enpro Holdings submitted to the EPA ranked consolidating and capping mining wastes on site as the most preferred option at each of the two priority mines. The EPA’s review of the draft EE/CAs is ongoing. The accrual for the two priority mines is $3.6 million, which is the low end of the range of our reasonably likely liability.Investigation of the six non-priority mines in the Bodaway Gap Chapter is ongoing, and we expect to prepare and submit draft EE/CAs to the EPA in the next one to two years. The accrual for the six non-priority mines is set at $7.6 million, which is the low end of the range of our reasonably likely liability with respect to these mines and is based on the remedial option of capping and consolidating wastes on site. The EPA has not identified a potential “regional repository” location for mines in the Bodaway Gap Chapter. Accordingly, we are not able at this time to estimate the upper end of a range of reasonably likely liability with respect to the non-priority mines.On October 18,