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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... -
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... -
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... -
MS4 Sewer Shed
District of Columbia —
The dataset contains locations and attributes of the drainage areas of MS4 outfalls. -
Impervious Surface 2017
District of Columbia —
The dataset contains basemap features that are typically classified as impervious surface, captured in 2017. Some examples of Impervious Surfaces include: Airport... -
MS4 Storm Sewer Outfalls
District of Columbia —
The dataset contains locations and attributes of the MS4 outfalls created as part of the Federal MS4 Permit. GPS outfall locations were captured by DC Water, then DC... -
State
Stormwater Operational District Contacts
Vermont Center for Geographic Information —
The Stormwater District layer is part of a dataset that contains administrative boundaries for Vermont's Agency of Natural Resources. The layer can be used to... -
County
Environmentally Sensitive Areas
Fairfax County, Virginia —
This polygon dataset is composed of subsets from Fairfax County’s current soil inventory, recorded floodplain, and Resource Protection Area (RPAs) layers. Layer... -
County
Combined Sewershed
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Combined sewersheds in the City of Pittsburgh. Attribute field identifies sewersheds that were analyzed as part of PWSA's City Wide Green First Plan. -
County
Loudoun Stormwater BMPs
Loudoun County, Virginia —
The stormwater BMP data is comprised of points (dry ponds, wet ponds, underground detention, etc.). These points identify the general location of BMPs within Loudoun... -
State
i19 Stormwater Project Points
State of California —
The feature dataset contains storm water projects planned in the future throughout California that involve groundwater recharge and direct use. It was used to develop... -
County
3RWW Green Infrastructure Inventory
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Green Infrastructure projects catalogued by 3RWW and partner organizations. This is a living dataset - updates are being made regularly by 3RWW staff and partner... -
State
i19 Stormwater Capture Master Plan LosAngelesDWP Geophysical Polys
State of California —
The feature dataset contains geophysical properties to analyze where obstacles to infiltration exist and where infiltration would be most desirable. Such properties... -
County
A41-027-M19 Green Infrastructure Concept
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Identifies opportunity sites throughout the A41, O27, and M19 Sewersheds for stormwater infrastructure that could fulfill both stormwater management needs and... -
Impervious Surface 2010
District of Columbia —
The dataset contains basemap features that are typically classified as impervious surface, captured in 2010. Some examples of Impervious Surfaces include: Airport... -
State
i19 Stormwater Permitees Municipal
State of California —
The feature datasets contain Phase 1 and Phase 2 municipal separate stormwater sewer system (MS4s) permittees in California. These draft layers are based on 2010... -
Impervious Surface 2019
District of Columbia —
The dataset contains basemap features that are typically classified as impervious surface, captured in 2019. Some examples of Impervious Surfaces include: Airport... -
State
i19 Stormwater Resource Plans Polys
State of California —
The feature dataset contains data representing storm water projects planned in the future throughout regions in California that involve groundwater recharge and... -
County
A42-M29-M16 Green Infrastructure Concept
Allegheny County / City of Pittsburgh / Western PA Regional Data Center —
Identifies opportunity sites throughout the A42, M29, and M16 Sewersheds for stormwater infrastructure that could fulfill both stormwater management needs and...