EPA Environmental Dataset Gateway

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UnknownComplex watersheds, collaborative teams: Assessing pollutant presence and effects in the San Francisco Delta
Live Map ServicesEPA Office of Water (OW): SDWIS - HUC12 Densities for Public Surface Water and Groundwater Sources
Live Map ServicesHUC-12 Watershed Boundary Polygons, Hawaii, 2009, WBD
Live Map ServicesHUC-10 Watershed Boundary Polygons, Hawaii, 2009, WBD
Live Map ServicesHUC-10 Watershed Boundary Polygons, Arizona, 2008, WBD
Live Map ServicesHUC-10 Watershed Boundary Polygons, Nevada, 2009, WBD
Live Map ServicesHUC-12 Watershed Boundary Polygons, Arizona, 2008, WBD
Live Map ServicesHUC-8 Watershed Boundary 24k Polygons, California, 2009, WBD
Live Map ServicesHUC-8 Watershed Boundary 24k Polygons, Hawaii, 2009, WBD
Live Map ServicesVulnerable Waters
Live Map ServicesArizona 8-Digit Watershed Boundaries (HUCs) 24k, Arizona, 2009, WBD
UnknownWetland Polygons, Hawaii, 2006, US Fish and Wildlife Service
DocumentsEnhancing climate adaptation capacity for drinking water treatment facilities (supplement)
UnknownIn vivo and In vitro neurochemical-based assessments of wastewater effluents from the Maumee River area of concern.
UnknownTide Predictions, California, 2014, NOAA
UnknownLower Colorado River GRP Points of Diversion, Nevada, 2012, Nevada Division of Environmental Protection and Nevada Division of Water Resources
Offline DataR2 Water Quality Portal Monitoring Stations
UnknownLower Colorado River GRP Surface Water Monitoring Sites, Arizona, 2012, Arizona Department of Environmental Quality
UnknownLower Colorado River GRP Drinking Water Surface Water Intakes, Arizona, 2012, Arizona Department of Environmental Quality
Downloadable dataNJPDES Surface Water Discharges in New Jersey, (1:12,000) Version 20111116
UnknownMobile Source Observation Database (MSOD)
Downloadable dataLevel III Ecoregions of Arkansas
Downloadable dataLevel III Ecoregions of Arizona
Downloadable dataLevel III Ecoregions of California
Downloadable dataLevel IV Ecoregions of California
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