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This layer contains boundaries of EPA Region 6 Superfund NPL Sites as of 3/1/2023. The boundaries represent several types of features such as operable units, plumes, facilities, landfill caps,...
Search relevance: 197.47 | Views last month: 1 | Catalog Last Checked: August 03, 2026 at 05:03 AM -
NPL Superfund Site Boundaries (EPA) Trending
This GIS dataset contains polygons depicting U.S. EPA Superfund Site boundaries. Site boundaries are polygons representing the footprint of a whole site, defined for purposes of this effort as the...
Search relevance: 161.88 | Views last month: 323 | Catalog Last Checked: November 02, 2026 at 01:31 AM -
This GIS dataset contains polygons depicting U.S. EPA Superfund Institutional Control boundaries. Institutional controls are non-engineered instruments, such as administrative and legal controls,...
Search relevance: 158.71 | Views last month: 39 | Catalog Last Checked: November 02, 2026 at 01:31 AM -
This GIS dataset contains polygons depicting U.S. EPA Superfund Operable Unit boundaries. The operable unit (OU) polygons represent an individual OU’s perimeters, which are used to identify a...
Search relevance: 158.20 | Views last month: 22 | Catalog Last Checked: November 02, 2026 at 01:31 AM -
This layer contains one boundary (one record) for each EPA Region 6 Superfund NPL Site as of 3/1/2023. Each boundary represents the outer lines of the site.
Search relevance: 100.06 | Views last month: 2 | Catalog Last Checked: August 03, 2026 at 05:03 AM -
The Agency for Toxic Substances and Disease Registry (ATSDR) Hazardous Waste Site Polygon Data, Version 2 consists of 2,080 polygons for selected hazardous waste sites that were compiled on May...
Search relevance: 90.59 | Views last month: 0 | Catalog Last Checked: September 15, 2025 at 10:51 AM
