EPA Regions (EPA Regions)

Full Metadata This web service contains EPA region boundaries and EPA regions extended to the 200nm exclusive economic zone (EEZ). This dataset was produced by EPA's Office of Environmental Information (OEI). Access and use constraints: These data are available for public access and use and carry no restrictions.

Full Metadata Boundaries used for EnviroAtlas as reference boundary data (State, County, Census Tracts, and Census Block Groups).

Full Metadata Boundaries used for EnviroAtlas as reference boundary data (State, County, Census Tracts, and Census Block Groups).

Full Metadata Boundaries used for EnviroAtlas as reference boundary data (State, County, Census Tracts, and Census Block Groups).

This map service contains GIS data for the Watershed Boundary Dataset (WBD) distributed with NHDPlus v2.1 (HUC2, HUC4, HUC6, HUC8, HUC10 and HUC12). The data has been simplified to increase display performance. The information supporting this service resides in the Reach Address Database (RAD) which is part of the Watershed Assessment, Tracking & Environmental Results System (WATERS).For complete metadata, please use refer to the full NHDPlus documentation at: http://www.horizon-systems.com/nhdplus/NHDPlusV2_home.php.

This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). This web service includes layers depicting EnviroAtlas national landscape indicators for 12-digit HUCs, counties, and states within the conterminous United States. EnviroAtlas allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the conterminous United States as well as detailed metrics for select communities. Additional descriptive information about each attribute in this web service can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).