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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... -
Federal
Water quality surveys in Culebra: comprehensive assessment of physical and chemical water characteristics from 2023-02-08 to 2025-01-13 (NCEI Accession 0305617)
National Oceanic and Atmospheric Administration, Department of Commerce —
This record provides physical, chemical, and pathogenic bacteria water quality metrics collected between February 2023 to January 2025 to provide reference data of... -
2024 MS4 Annual Report
District of Columbia —
What is the MS4 Annual Report?Every year, the District submits an Annual Municipal Separate Storm Sewer System (MS4) Report to the U.S. Environmental Protection Agency... -
State
Waste Water Facilities
Vermont Center for Geographic Information —
This dataset contains the locations of municipal and industrial direct discharge wastewater treatment facilities throughout the state of Vermont. Spatial data is not... -
Federal
Occurrence of per- and polyfluoroalkyl substances, Long Island and New York City, New York
Department of the Interior —
State and local county health departments have detected per- and polyfluoroalkyl substances (PFAS) in groundwater downgradient of airports and military and... -
Federal
Surface-Water-Quality Data and Time-Series Plots to Support Implementation of Site-Dependent Aluminum Criteria in Massachusetts, 2018–19 (ver. 1.1, Februrary 2023)
Department of the Interior —
This data release includes water-quality data collected at 38 sites in central and eastern Massachusetts from April 2018 through May 2019 by the U.S. Geological... -
2022 MS4 Annual Report
District of Columbia —
What is the MS4 Annual Report?Every year, the District submits an Annual Municipal Separate Storm Sewer System (MS4) Report to the U.S. Environmental Protection Agency... -
Federal
Point-Source Nutrient Loads to Streams of the Conterminous United States, 2012
Department of the Interior —
The U.S. Geological Survey (USGS) developed a spatial water-quality model called SPAtially Referenced Regressions On Watershed attributes (SPARROW) to estimate the... -
2021 MS4 Annual Report
District of Columbia —
What is the MS4 Annual Report?Every year, the District submits an Annual Municipal Separate Storm Sewer System (MS4) Report to the U.S. Environmental Protection Agency... -
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... -
Federal
Region 1 Combined Sewer Outfalls
U.S. Environmental Protection Agency —
CSO attributes and location information are from a variety of datasets for each state: Connecticut: Beginning with GIS data compiled by the Connecticut Department of... -
Federal
Water quality surveys in Culebra: comprehensive assessment of physical and chemical water characteristics 2023-02-08 to 2025-01-13
National Oceanic and Atmospheric Administration, Department of Commerce —
This record provides physical and chemical water quality metrics collected between February 2023 to January 2025 to provide reference data of nearshore and watershed... -
Federal
Comprehensive Dataset and Reports of the Mamala Bay Study during 1993-1995 on Oahu, Hawaii
National Oceanic and Atmospheric Administration, Department of Commerce —
This collection contains comprehensive datasets and reports collected in support of the Mamala Bay Study during 1993-1995. Physical, chemical, biological, and... -
Federal
Water quality and survival data for 96 hour bioassays conducted near the Blacktail Creek wastewater spill, North Dakota, 2015-17
Department of the Interior —
Data set contains water quality measurements and survival of fathead minnow from in situ and laboratory bioassay exposures to wastewater from a spill on Blacktail... -
Federal
Bacteria, nutrients, and contaminants of emerging concern in shallow groundwater of nearshore environments, Suffolk County, New York, 2013
Department of the Interior —
Onsite wastewater disposal systems (OWDS) in coastal regions of Long Island, New York, contribute bacteria, nutrients, and organic wastewater-associated compounds... -
Federal
Locations of Combined Sewer Overflow Outfalls - US EPA Region 3
U.S. Environmental Protection Agency —
This data layer identifies the locations of Combined sewer overflow outfalls. Combined sewer systems are sewers that are designed to collect rainwater runoff,... -
Federal
Water-quality and stream discharge data for estimation of nitrogen loads in the South Platte River, Denver, CO, 2017-2018
Department of the Interior —
The purpose of this data release is to provide the original data, analysis methods, and nitrogen loading models in support of a study of the upper South Platte River... -
Federal
Point source nutrient discharges to surface water in the United States Pacific Northwest for 2002 summarized for NHDPlus v2 catchments
Department of the Interior —
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of total nitrogen and total phosphorus discharged to surface waters in... -
Federal
Benthic sediment data from eleven stations in the Mobile-Tensaw River Delta, Alabama on 1981-06-17 (NCEI Accession 0118497)
National Oceanic and Atmospheric Administration, Department of Commerce —
Benthic sediment samples were collected from eleven stations in the Mobile-Tensaw River Delta on 17 June 1981. Samples were analyzed for particle size distribution...