-
Federal
NPL Superfund Site Boundaries (EPA)
U.S. Environmental Protection Agency —
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... -
Federal
Endangered Species Range Areas
U.S. Environmental Protection Agency —
The Endangered Species Act (ESA) provides a program for the conservation of threatened and endangered species and the habitats in which they are found. The U.S. Fish... -
Federal
NPL Superfund Institutional Control Boundaries (EPA)
U.S. Environmental Protection Agency —
This GIS dataset contains polygons depicting U.S. EPA Superfund Institutional Control boundaries. Institutional controls are non-engineered instruments, such as... -
Federal
Critical Habitat for Endangered Species
U.S. Environmental Protection Agency —
The Endangered Species Act (ESA) provides a program for the conservation of threatened and endangered species and the habitats in which they are found. The U.S. Fish... -
Federal
EPA RCRA Corrective Action Boundary Data, U.S. EPA Regional Offices
U.S. Environmental Protection Agency —
This GIS dataset contains polygons depicting RCRA Corrective Action boundary features from all EPA Regions. The Resource Conservation and Recovery Act (RCRA), among... -
Federal
Biologically Important Areas for Cetaceans within U.S. Waters 2015-03-01 - Present
National Oceanic and Atmospheric Administration, Department of Commerce —
The Cetacean Density and Distribution Mapping Working Group identified Biologically Important Areas (BIAs) for 24 cetacean species, stocks, or populations in seven... -
Federal
Cleanups In My Community (CIMC) - Hazardous Waste Corrective Actions, National Layer
U.S. Environmental Protection Agency —
This data layer provides access to Hazardous Waste Corrective Action sites as part of the CIMC web service. Hazardous waste is waste that is dangerous or potentially... -
Federal
EnviroAtlas - NHDPlus V2 Hydrologic Unit Boundaries Web Service - Conterminous United States
U.S. Environmental Protection Agency —
This EnviroAtlas web service contains layers depicting hydrologic unit boundary layers and labels for the Subregion level (4-digit HUCs), Subbasin level (8-digit... -
State
8 Digit Hydrologic Unit 2006 (polygon)
State of Arkansas —
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the State of Arkansas. This data set consists of geo-... -
Federal
NPL Superfund Operable Unit Boundaries (EPA)
U.S. Environmental Protection Agency —
This GIS dataset contains polygons depicting U.S. EPA Superfund Operable Unit boundaries. The operable unit (OU) polygons represent an individual OU’s perimeters,... -
State
12 Digit Hydrologic Unit 2006 (polygon)
State of Arkansas —
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the State of Arkansas. This data set consists of geo-... -
Federal
NHDPlus v2.1 and Alaska Beta NHDPlus
U.S. Environmental Protection Agency —
This dataset contains upstream watershed drainage areas for catchments comprising Catchment Fabric HUC12 units. The dataset is incomplete for Alaska. -
Federal
EPA Office of Water (OW): NHDPlus v21+AK Beta Catchment Fabric Twelve-Digit Subwatersheds
U.S. Environmental Protection Agency —
This dataset contains twelve-digit hydrologic subwatershed units aggregated from the NHDPlus v21+AK Beta State Catchment Fabric. These units express the Catchment...