EPA FRS SEMS_NPL: Superfund National Priorities List Facilities

United States facilities listed on the Superfund National Priorities List (NPL) are included in this dataset. It provides location and identification information from the EPA's Facility Registry Service (FRS), integrating data from the Superfund Enterprise Management System (SEMS). The dataset is maintained by the U.S. Environmental Protection Agency and was last updated in March 2026.

Use Cases

• Map the geographic distribution of hazardous waste sites based on location information.
• Analyze regulatory status and priority of contaminated sites based on NPL listing status.
• Cross-reference facility data with other environmental datasets based on integrated FRS identifiers.
• Track the progress of Superfund program site assessments and cleanups based on SEMS integration.

Strengths

• Data is centrally managed and verified by the EPA's Facility Registry Service.
• Integrates facility data from EPA national program systems, federal agencies, and state/tribal records.
• Last updated on 2026-03-23, indicating recent maintenance.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to the U.S. Superfund program.

Provenance

Source

U.S. Environmental Protection Agency

Collection Method

Integrated from EPA's Superfund Enterprise Management System (SEMS) into the Facility Registry Service (FRS).

Freshness

Last updated 2026-03-23 14:31:07.044963

Geography

United States