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Federal
USGS Water-Quality Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
Federal
Data for multiple linear regression models for predicting microcystin concentration action-level exceedances in selected lakes in Ohio
Department of the Interior —
Site-specific multiple linear regression models were developed for eight sites in Ohio—six in the Western Lake Erie Basin and two in northeast Ohio on inland... -
Federal
Agricultural Pesticide Use Estimates for the USGS National Water Quality Network, 1992-2014
Department of the Interior —
The National Water Quality Network (NWQN) for Rivers and Streams includes 113 surface-water river and stream sites monitored by the U.S. Geological Survey (USGS)... -
Federal
Drainage Basins Used for Assessing Trends in Concentration of Pesticides in Streams of the United States, 1992-2010
Department of the Interior —
This dataset consists of drainage basin boundaries for 212 U.S. Geological Survey (USGS) stream sites sampled in the National Water-Quality Assessment (NAWQA)... -
Federal
Data and Regression Model for Suspended Sediment for Iroquois River near Foresman, Indiana, March 20, 2015 to July 19, 2018
Department of the Interior —
The primary data set consists of continuous water-quality data (temperature, specific conductance, pH, dissolved oxygen, turbidity, nitrate plus nitrite, and... -
Federal
Suspended Sediment Data and Loads in the Fountain Creek Watershed, Colorado (ver 2.0, June 2025)
Department of the Interior —
This data release consists of daily mean streamflow, daily mean suspended sediment concentration (SSC), and daily mean suspended sediment load (SSL) data for selected... -
Federal
Volatile organic compounds in passive soil gas, indoor air, and groundwater samples at the Triangle Chemical Company Superfund Site, Orange County, Texas, 2021–2023
Department of the Interior —
The Triangle Chemical Company Superfund site, in Orange County, Texas, was a chemical mixing and blending facility in the 1970s. According to the Environmental... -
Federal
Per- and polyfluoroalkyl substances (PFAS) and pharmaceutical compound data from passive and sediment samples from 62 Great Lakes tributary sites collected in 2018
Department of the Interior —
This dataset includes per-and polyfluoroalkyl substances (PFAS) and pharmaceuticals monitored at 62 sampling sites in tributaries of the Laurentian Great Lakes.... -
Federal
Sediment Oxygen Demand Data for Eastern Kansas Streams, August 2014 through December 2015
Department of the Interior —
This U.S. Geological Survey (USGS) Data Release provides data collected from sediment oxygen demand (SOD) deployments conducted at eight stream sites in eastern... -
Federal
Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for May 2004
Department of the Interior —
Hydrological Information Products for the Off-Project Water Program of the Klamath Basin Restoration Agreement U.S. Geological Survey Open-File Report 2012-1199 U.S.... -
Federal
Water-quality data from two sites on Milford Lake, Kansas, May 25-26, June 8-10, July 20-21, and September 14-15, 2016
Department of the Interior —
This U.S. Geological Survey (USGS) Data Release provides continuously-measured water-quality data collected from two sites on Milford Lake, Kansas, during May 25-26,... -
Federal
Water-quality data from four Indian Creek sites, Johnson County, Kansas, July 22-25, 2014 and August 21-27, 2015
Department of the Interior —
This U.S. Geological Survey (USGS) Data Release provides continuously measured water-quality data collected from four Indian Creek sites in Johnson County, Kansas... -
Federal
Chemical Data From 40 Years of Monitoring a Treated-Wastewater Groundwater Plume in a Sand and Gravel Aquifer, Cape Cod, Massachusetts, 1978-2018 (ver. 1.1, April 2025)
Department of the Interior —
This U.S. Geological Survey data release provides a comprehensive dataset of water-quality data and sampling-site characteristics collected in 1978–2018 during a... -
Federal
Selenium and mercury in fish tissues from the Kootenai River, Montana and Idaho, September 2018
Department of the Interior —
Working in cooperation with EPA, the USGS coordinated the collection of fish tissue for processing and analyses by the EPA Region 10 Manchester Environmental... -
Federal
A Digital Hydrologic Network Supporting NAWQA MRB SPARROW Modeling--MRB_E2RF1
Department of the Interior —
A digital hydrologic network was developed to support SPAtially Referenced Regression on Watershed attributes (SPARROW) models within selected regions of the United... -
Federal
Groundwater-quality sampling at the Ouachita-Nevada Wood Treaters Superfund Site, Reader, Arkansas, October 2024
Department of the Interior —
The Ouachita-Nevada Wood Treaters Superfund Site is a former wood-treatment facility located on approximately five acres of undeveloped land along the west side of... -
Federal
Mud logs from the Oxnard Oil Field, Ventura County, California
Department of the Interior —
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board (SWRCB) compiled and digitized mud logs from oil and gas... -
Federal
Map 13: ArcGIS layer showing contours of the difference in October Mean water levels from the water-year periods 1990 to 1999 and 2000 to 2009 (feet)
Department of the Interior —
Statistical analyses and maps representing mean, high, and low water-level conditions in the surface water and groundwater of Miami-Dade County were made by the U.S.... -
Federal
Water-quality data for base flow and storm runoff samples collected in Johnson County, Kansas, from January 2015 through June 2016
Department of the Interior —
This U.S. Geological Survey (USGS) Data Release provides selected discretely measured water-quality data collected from 27 monitoring sites in Johnson County, Kansas,... -
Federal
Coastwide Reference Monitoring System (CRMS) 2015 Site 2334 Land-Water Classification Data
Department of the Interior —
Wetland restoration efforts conducted by the Coastal Wetlands Planning, Protection, and Restoration Act (CWPPRA) in Louisiana rely on monitoring efforts to determine...