Nationwide Permit 49 authorizes the discharge of dredged or fill material into non-tidal waters of the United States associated with the remining and reclamation of lands that were previously mined for coal. This permit is designed to facilitate the reclamation of abandoned mine lands and previously mined areas where coal extraction may still be viable. To qualify, these activities must be authorized or currently in process by the Department of the Interior’s Office of Surface Mining Reclamation and Enforcement (OSMRE) or by states with approved programs under the Surface Mining Control and Reclamation Act of 1977 (SMCRA). The scope of this permit includes the reclamation of abandoned mine land areas, including those with acid mine drainage, and other reclaimed mine sites. The primary goal is to encourage the restoration of these degraded areas while allowing for incidental coal extraction. The permittee must demonstrate to the Corps that the project will result in an overall net improvement in water quality and a reduction in pollutant loadings, such as sediment or acid mine drainage, within the watershed.
The 2026 reissuance of NWP 49 maintains the same national terms and conditions as the 2021 version, with no substantive modifications to the permit requirements. The Corps reevaluated the permit's effectiveness and determined that the existing requirement for a mandatory pre-construction notification (PCN) for all projects remains a sufficient safeguard to ensure that remining activities result in no more than minimal individual and cumulative adverse environmental effects. While the regulatory text is unchanged, the supporting decision document was updated to incorporate the most recent environmental baseline data. This includes results from the 2022 National Lakes Assessment and the 2021 National Wetland Condition Assessment. These updates ensure the Corps' finding that the cumulative effects of these restoration-oriented activities remain minimal is supported by the latest available ecological science.
Compliance managers for coal mining companies and state agencies involved in Abandoned Mine Land (AML) reclamation programs typically use this permit. It is required for any project seeking to extract remaining coal from previously mined sites while simultaneously performing environmental restoration in jurisdictional waters.
The Corps determined that the reissuance of NWP 49 results in a 'no effect' finding for federally-listed endangered or threatened species and designated critical habitat. This finding is supported by General Condition 18, which requires project-specific ESA Section 7 consultation if an activity 'might affect' listed resources; no activity is authorized until that process is complete. Because every project under NWP 49 requires a PCN, the district engineer has the opportunity to review every proposal for potential impacts to these species. Compliance with Section 106 of the National Historic Preservation Act (NHPA) is managed through General Condition 20. The mandatory PCN allows the Corps to evaluate every proposed remining operation for potential effects on historic properties. For Essential Fish Habitat (EFH), district engineers apply regional or case-specific conditions to ensure that sediment management and reclamation work do not cause more than minimal adverse effects on sensitive aquatic environments.
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