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State
Small MS4 (Municipal Separate Storm Sewer Systems) Area
Vermont Center for Geographic Information —
The dataset contains the boundaries of the MS4 general permit, which are defined as the intersection of US Census urbanized areas and the watershed boundaries of the... -
City
Sanitary Availability
City of Sioux Falls —
Feature layer containing authoritative sanitary availability polygons for Sioux Falls, South Dakota. This layer includes the areas where sanitary sewer is expected... -
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... -
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
Soils Subsurface Sewage Disposal Systems
State of Connecticut —
Subsurface sewage disposal systems (SSDS) consist of a house sewer, a septic tank followed by a leaching system, any necessary pumps and siphons, and a groundwater... -
City
Rain Gages
City of Seattle —
Primarily supports the permanent Combined Sewer Overflow monitoring locations network to determine the beginning and ending of rainfall events and calculate rainfall... -
Federal
EGS Collab: Modeling and Simulation Working Group Teleconference Series (1-98)
Department of Energy —
This submission contains the presentation slides and recordings from the first 98 EGS Collab Modeling and Simulation Working Group teleconferences. These... -
State
Connected Sewer Service Areas
State of Connecticut —
This data was created through the modification of an existing sewer service dataset from the CT Office of Policy and Management (OPM), in addition to sewer data from... -
DC Subwatersheds
District of Columbia —
This layer depicts the conglomeration of the 4 layers used for TMDLs. It contains TMDL Subsheds, Direct Drain Overland (not piped), Direct Drain Sewersheds (piped),... -
City
SPU DWW Proposed Mainline End Points
City of Seattle —
SPU DWW Mainline Points is a Group Layer containing all Lifecycles, Ownerships, and other variations of Drainage and Wastewater Mainlines Points.Proposed Mainline End... -
City
SPU DWW Force Mainline End Points
City of Seattle —
SPU DWW Mainline Points is a Group Layer containing all Lifecycles, Ownerships, and other variations of Drainage and Wastewater Mainlines Points.Proposed Mainline End... -
City
SPU DWW Force Mainlines
City of Seattle —
SPU DWW Mainlines is a Group Layer containing all Lifecycles, Ownerships, and other variations of Drainage and Wastewater Mainlines. The Connected Mainlines are... -
City
DWW Mainline Connection Points Wyes
City of Seattle —
SPU DWW Mainline Points is a Group Layer containing all Lifecycles, Ownerships, and other variations of Drainage and Wastewater Mainlines Points.Proposed Mainline End... -
City
SPU DWW Mainline End Points
City of Seattle —
SPU DWW Mainline Points is a Group Layer containing all Lifecycles, Ownerships, and other variations of Drainage and Wastewater Mainlines Points.Proposed Mainline End... -
City
Non-Mainline Points
City of Seattle —
This layer displays all the connected and to be connected non-mainline points within the City of Seattle (and the former service area north of the City limits)... -
City
SPU DWW Aba Rem Mainline End Points
City of Seattle —
SPU DWW Mainline Points is a Group Layer containing all Lifecycles, Ownerships, and other variations of Drainage and Wastewater Mainlines Points.Proposed Mainline End... -
City
Proposed Non-Mainline Points
City of Seattle —
This layer displays all the connected and to be connected non-mainline points within the City of Seattle (and the former service area north of the City limits)... -
City
Non-SPU Owned Non-Mainlines
City of Seattle —
Active, proposed, abandoned and removed secondary sewer and storm pipes that are not part of the mainline system (i.e. side sewers, service drains, etc.). Side Sewers... -
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...