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EPA Sole Source Aquifers
Information on sole source aquifers (SSAs) is widely used in assessments under the National Environmental Policy Act and at the state and local level. A national layer,... -
State waters within Florida Keys National Marine Sanctuary, 2002, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
EnviroAtlas - Water Balance and Surficial Groundwater by 12-digit HUC for the Conterminous United States
This EnviroAtlas dataset summarizes several U.S. Geological Survey (USGS) water budget and surficial groundwater datasets by 12-digit HUC. It includes average rates of... -
Mission Bay (California) sewage no-discharge zone, 1976, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
BIA Tribes (3 of 5): National Land Area Representation
The purpose of the American Indian and Alaska Native Land Area Representation (AIAN-LAR) Geographic Information System (GIS) dataset is to depict the external extent of federal... -
Indicators for Assessing Community and Contaminated Site Vulnerability to Extreme Events
The indicators (non-EPA owned, yet described in the Handbook and Manuscript) represent: 1) potential exposures due to extreme events (heat, floods, drought, and wildfire), 2)... -
Cape Cod Tapwater 2018 EPA-generated Bioassay Data
Detected in vitro estrogen, androgen, and glucocorticoid receptor activity,in samples in the 2018 tapwater study in Cape Cod, Massachusetts. This dataset is associated with the... -
Dana Point Harbor (California) sewage no-discharge zone, 1976, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
Huntington Harbor and Sunset Bay (California) sewage no-discharge zone, 1976, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
Newport Bays (California) sewage no-discharge zone, 1976, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
Sites Pre-Screened for Geothermal Energy Potential
The RE-Powering Screening Dataset spreadsheet contains detailed information on over 130,000 contaminated lands, landfills, and mine sites with screening results for renewable... -
Avalon Bay Harbor (California) sewage no-discharge zone, 1979, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
Oceanside Harbor (California) sewage no-discharge zone, 1976, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
Source Strength Functions from Long-Term Monitoring Data and Spatially Distributed Mass Discharge Measurements
Source strength functions (SSF), defined as contaminant mass discharge or flux-averaged concentration from dense nonaqueous phase liquid (DNAPL) source zones as a function of... -
BIA Tribes (5 of 5): Tribal Statistical Areas
In Oklahoma, historic depictions of the land areas representations, as described in 1867-1870, were developed and called Tribal Statistical Areas (TSA) in the AIAN-LAR. These... -
EnviroAtlas - HU12_polygon
This data set is a complete digital hydrologic unit boundary layer to the Subwatershed (12-digit) 6th level for the entire United States. This data set consists of geo-... -
Richardson Bay (California) sewage no-discharge zone, 1987, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
San Diego Bay (California) sewage no-discharge zone, 1976, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,... -
Channel Islands Harbor (California) sewage no-discharge zone, 1979, EPA HQ OWOW
This geospatial dataset depicts a sewage no-discharge zone established under Clean Water Act Section 312. The area(s) depicted are zones where the discharge of any sewage,...
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