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State
Reported Sewer Overflows
State of Maryland —
NOTE: This dataset is no longer updated. Due to a change in databases, overflows after after January 31, 2023 are reported at... -
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... -
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... -
State
Reported Sewer Overflows (New for 2023)
State of Maryland —
This report has replaced the https://opendata.maryland.gov/Energy-and-Environment/Reported-Sewer-Overflows/3rgd-zjxx/about_data Reported Sewer Overflows. This report... -
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...