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Impervious Surface 2021
District of Columbia —
The dataset contains basemap features that are typically classified as impervious surface, captured in 2021. Some examples of Impervious Surfaces include: Airport... -
City
Rainwise
City of Seattle —
The RainWise program helps eligible property owners manage stormwater by installing rain gardens and/or cisterns on private property. The program is jointly funded by... -
Federal
San Francisco Bay Area Baseline Trash Loading Summary Results, San Francisco Bay Area CA, 2012, US EPA Region 9
U.S. Environmental Protection Agency —
The San Francisco Bay Area stormwater permit sets trash control guidelines for discharges through the storm drain system. The permit covers Alameda, Contra Costa,... -
City
Citywide GSI BMP
City of Seattle —
This layer displays Citywide Green Stormwater Infrastructure Best Management Practices (City-wide GSI BMP) and Citywide Green Stormwater Infrastructure projects... -
City
SPU DWW Aba Rem Other GSI Footprints
City of Seattle —
The DWW (Drainage and Waste Water) GSI (Green Stormwater Infrastructure) layer consists of line and polygon representations of the following features: Swales... -
Combined Sewer Outfall Sewer Shed
District of Columbia —
DC Water operates a wastewater collection system comprised of "separate" and "combined" sewers. Approximately two-thirds of the District is served by a separate sewer... -
Identify Your Watershed and Sewer System Area App
District of Columbia —
This app displays a series of general information for an address, location, or where the user clicks in DC.Some information returned are:-Municipal Separate Storm... -
City
SPU DWW Swales
City of Seattle —
The DWW (Drainage and Waste Water) GSI (Green Stormwater Infrastructure) layer consists of line and polygon representations of the following features: Swales... -
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
Soils Parent Material Name
State of Connecticut —
Parent material name is a term for the general physical, chemical, and mineralogical composition of the unconsolidated material, mineral or organic, in which the soil... -
City
Citywide GSI Project
City of Seattle —
This layer displays Citywide Green Stormwater Infrastructure Best Management Practices (City-wide GSI BMP) and Citywide Green Stormwater Infrastructure projects... -
Green Infrastructure Practices in the District
District of Columbia —
You can use this page to explore Green Infrastructure (GI) practices throughout the District of Columbia. Use the filters to search for GI installed through specific... -
County
Stormwater Easements
Fairfax County, Virginia —
Stormwater easements (ex: storm drainage, storm sewer, floodplain) as captured from recorded plats using coordinate geometry (COGO) capture method. All easements are... -
Best Management Practices
District of Columbia —
Best Management Practices (BMPs) are structural controls used to manage stormwater runoff. Examples include green roofs, rain gardens, and cisterns. BMPs reduce the... -
RiverSmart Homes
District of Columbia —
RiverSmart Homes is a program of the District of Columbia offering incentives to residents to reduce stormwater runoff from their properties. Residents receive a... -
Sidewalk Grates 2021
District of Columbia —
Grate: A single point capture for the feature at the visual center point. Grates are structures of parallel or crossed bars, used to cover steam vents or other... -
Impervious Surface 2023
District of Columbia —
The dataset contains basemap features that are typically classified as impervious surface, captured in 2023. Some examples of Impervious Surfaces include: Airport... -
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
SPU DWW Aba Rem Underdrains & Rain Gardens
City of Seattle —
The DWW (Drainage and Waste Water) GSI (Green Stormwater Infrastructure) layer consists of line and polygon representations of the following features: Swales... -
Impervious Surface 2015
District of Columbia —
The dataset contains basemap (planimetric) features that are typically classified as impervious surface captured in 2015., created as part of the DC Geographic...