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Federal
Drinking Water Maximum Contaminant Levels (MCLs)
U.S. Environmental Protection Agency —
National Primary Drinking Water Regulations (NPDWRs or primary standards) are legally enforceable standards that apply to public water systems. Primary standards... -
Federal
National Fish Habitat Action Plan (NFHAP) - Coastal Spatial Framework and Coastal Indicator Data
National Oceanic and Atmospheric Administration, Department of Commerce —
The NFHAP Coastal Spatial Framework and Indicator Datasets consist of a geospatial base layer developed in ArcGIS, and associated data fields joined to the spatial... -
Federal
NOAA Environmental Sensitivity Index (ESI) maps and geographic information systems data from 1900 to 2009
National Oceanic and Atmospheric Administration, Department of Commerce —
This collection comprises the Environmental Sensitivity Index (ESI) data for various regions in U.S. coastal waters. ESI data characterize estuarine environments and... -
Federal
NCCOS Assessment: Assessment of organic and inorganic chemical contaminants in the sediments of the Salt River Bay National Historical Park and Ecological Preserve, St. Croix, US Virgin Islands, 2018-09-04 to 2018-09-06 (NCEI Accession 0220105)
National Oceanic and Atmospheric Administration, Department of Commerce —
This dataset contains results from the analysis of sediments for chemical contaminants including organic contaminants like hydrocarbons and pesticides, and inorganic... -
Federal
EPA Impaired Waters presence and causes for HUC12 watersheds across the Conterminous U.S.
Department of the Interior —
This dataset summarizes impairment status for HUC12 watersheds at the CONUS scale using the EPA publicly available Assessment, Total Maximum Daily Load (TMDL)... -
Federal
BP Public Release data for the Deepwater Horizon Response and Assessment in the Gulf of Mexico, dating from 2010-05-01 to 2013-09-30
National Oceanic and Atmospheric Administration, Department of Commerce —
These BP Public Release data were gathered and utilized during the Response and Assessment phases of the Deepwater Horizon oil spill in the Gulf of Mexico. These data... -
Federal
Contaminant Candidate List 2
U.S. Environmental Protection Agency —
CCL 2 is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations, that are known or... -
Federal
Contaminant Candidate List 1
U.S. Environmental Protection Agency —
CCL 1 is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations, that are known or... -
State
Iowa Source Water Protection Tracker and Mapper
State of Iowa —
Source Water is a lake, stream, river or aquifer where drinking water is obtained. Source Water Protection (SWP) is the act of preventing contaminants from entering... -
Federal
Six-Year Review Contaminant Occurrence Data
U.S. Environmental Protection Agency —
The Safe Drinking Water Act (SDWA) requires EPA to review each National Primary Drinking Water Regulation (NPDWR) at least once every six years and revise them, if... -
Federal
Particulate physicochemical data at a fish hatchery in Puyallup, Washington, September 2023
Department of the Interior —
Particulate samples were collected from a fish hatchery in Puyallup, Washington, September 18 – 20, 2023 during late summer, low-flow conditions in the intake creek.... -
Federal
PCB Data (excel file) and PFAS Data (excel file)
U.S. Environmental Protection Agency —
Analytical and field sampling data for each 2018-2019 NRSA Fish Tissue Study chemical contaminant are provided, along with a data dictionary that describes the... -
Federal
Water Chemistry and Smallmouth Bass Biological Data from Pine Creek and West Branch Mahantango Creek, Pennsylvania, 2015-2019
Department of the Interior —
Monitoring wild fish health and associated exposure effects in regions where agriculture and development have impacted rivers and streams has become a valuable... -
Federal
Goodwater Creek Experimental Watershed caves herbicide, nutrient, and suspended sediment data (1991-2010)
Department of Agriculture —
The Goodwater Creek, Missouri cave stream data file contains nutrient and herbicide concentrations, loads, and daily discharge data for Devils Icebox Cave and Hunters... -
Federal
Six-Year Review Contaminant Occurrence Data
U.S. Environmental Protection Agency —
The Safe Drinking Water Act (SDWA) requires EPA to review each National Primary Drinking Water Regulation (NPDWR) at least once every six years and revise them, if... -
Federal
Surfrider, station 590
National Oceanic and Atmospheric Administration, Department of Commerce —
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are... -
Federal
Water Column and Invertebrate data for the Deepwater Horizon Response and Assessment in the Gulf of Mexico, dating from 2010-05-05 to 2016-03-31
National Oceanic and Atmospheric Administration, Department of Commerce —
These Water Column and Invertebrates data were gathered and utilized during the Response and Assessment phases of the Deepwater Horizon oil spill in the Gulf of... -
Federal
State of Hawaii, Department of Health, Clean Water Branch State-wide Water Quality Sampling Dataset 1973-1998 (NODC Accession 0013724)
National Oceanic and Atmospheric Administration, Department of Commerce —
The Monitoring Section of the State of Hawaii, Department of Health, Clean Water Branch collects water quality data at over 300 coastal locations state-wide using... -
Federal
Polar Bear Hair Mercury Concentrations Southern Beaufort Sea 2004-2011
Department of the Interior —
These are data collected from polar bears from the southern Beaufort Seas during the spring and fall between 2004 and 2011. Data include individual ID, sex and age... -
Federal
Surfrider, station 8
National Oceanic and Atmospheric Administration, Department of Commerce —
Fecal indicator bacteria levels are measured in water samples collected from ocean and bay beaches, streams, lakes and other coastal waterways. Water samples are...