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State
CalEnviroScreen 2.0
State of California —
The Office of Environmental Health Hazard Assessment (OEHHA), on behalf of the California Environmental Protection Agency (CalEPA), developed California Communities... -
City
DWSD CSO Event Data
City of Ferndale, Michigan —
Detroit Water & Sewerage waste water discharge event location data (2008-2014). Information on location and function of various structures involved with... -
State
NYSDEC_WaterbodyInventoryAndPriorityWaterbodiesListAdditionalShoreline1Segment_DataSet
State of New York —
The Waterbody Inventory/Priority Waterbodies List (WI/PWL) dataset is an inventory of the state's surface water quality. This dataset provides a summary of general... -
City
Catch Basins
City of Seattle —
This layer displays all the catch basins, catch basin grated tops, sandboxes, junction boxes, inlets and trash racks within the City of Seattle (and the former... -
State
Surface Water - Chemistry Results - CEDEN Augmentation
State of California —
This dataset includes field and lab chemistry data that has been submitted to the California Environmental Data Exchange Network (CEDEN), but has not been loaded into... -
Federal
Geographical and Seasonal Patterns in the Carbonate Chemistry of Narragansett Bay, RI
U.S. Environmental Protection Agency —
This data comprises geographical and seasonal patterns in water quality and carbonate chemistry parameters in Narragansett Bay, RI, USA. Direct measurements of... -
City
Aba Rem Inlets
City of Seattle —
This layer displays all the catch basins, catch basin grated tops, sandboxes, junction boxes, inlets and trash racks within the City of Seattle (and the former... -
City
ARCHIVED: Greenworks Metrics
City of Philadelphia —
The following datasets are no longer maintained and will not receive further updates. They remain available as a snapshot in time for the public to use. Greenworks is... -
City
Proposed Inlets
City of Seattle —
This layer displays all the catch basins, catch basin grated tops, sandboxes, junction boxes, inlets and trash racks within the City of Seattle (and the former... -
Storm Drain Marker Installations
District of Columbia —
Storm Drain Marker Installations is a data layer showing where storm drain markers were installed on storm sewer catchments. Markers indicate that the sewer catchments... -
City
Proposed Sandboxes and Junction Boxes
City of Seattle —
This layer displays all the catch basins, catch basin grated tops, sandboxes, junction boxes, inlets and trash racks within the City of Seattle (and the former... -
State
Draft Terrestrial Landscape Intactness for 2026-2027 IRP
State of California —
This category of planning priorities provides an estimate of terrestrial landscape condition based on the extent to which human impacts such as agriculture, urban... -
State
Oregon Ecoregions
State of Oregon —
This data layer is an element of the Oregon GIS Framework. Ecoregions denote areas of general similarity in ecosystems and in the type quality, and quantity of... -
State
NYSDEC_WaterbodyInventoryAndPriorityWaterbodiesListRiverStreamSegments_DataSet
State of New York —
The Waterbody Inventory/Priority Waterbodies List (WI/PWL) dataset is an inventory of the state's surface water quality. This dataset provides a summary of general... -
State
Surface Water Quality Polygon
State of Connecticut —
See full Data Guide here. Surface Water Quality Classifications Set: This dataset is a line and a polygon feature-based layer compiled at 1:24,000 scale that includes... -
City
Trash Racks
City of Seattle —
This layer displays all the catch basins, catch basin grated tops, sandboxes, junction boxes, inlets and trash racks within the City of Seattle (and the former... -
State
Ground Water Classifications Polygon
State of Connecticut —
See full Data Guide here.Ground Water Classifications Polygon: Ground Water Quality Classifications is a polygon feature-based layer compiled at 1:24,000 scale that... -
State
Fish Consumption Advisory Serving Recommendations
State of California —
Summary of fish advisories that recommend how often you can safely eat fish caught from water bodies in California based on the level of chemical contaminants.... -
State
Surficial Aquifer Potential
State of Connecticut —
This map has been prepared for statewide ground water resource protection, water management, non-point source pollution prevention, and land use planning. The map was...