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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
Forest health monitoring summary data (2007–2024) from eight national parks in the Eastern Rivers and Mountains Network
Department of the Interior —
This data package contains records and metadata from long-term forest health monitoring collected in eight national park units in the Eastern Rivers and Mountains... -
Federal
Streamside Bird Monitoring Data in Eastern Rivers and Mountains Network Parks (2011-2025) Data Package
Department of the Interior —
This data package contains records and metadata of avian point count data that were collected in six National Park Service units as part of the Eastern Rivers and... -
Federal
Fisheries Inventory, Trout Data, at Rocky Mountain National Park 2021-2022 - Open Format Dataset
Department of the Interior —
The Cameron Peak Fire and East Troublesome Fire of 2020 were the two largest wildfires in Colorado history. They burned approximately 9% of the Rocky Mountain... -
Federal
Southeast Alaska I&M Network Water Quality Data Package (FQ_Q) for monitoring years 2010-2024 at Sitka National Historical Park
Department of the Interior —
This data set is a comma-separated values (CSV) file containing continuous hourly water quality observations of the Indian River in Sitka National Historical Park for... -
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
Stream Fish Monitoring Data in Eastern Rivers and Mountains Network Parks (2022-2023) Data Package
Department of the Interior —
This data package contains fish community and habitat data collected at 69, 100-meter-long reaches in wadeable streams throughout six national park units in the Mid-... -
Federal
Carl Sandburg Home National Historic Site Small-Scale Base GIS Data
Department of the Interior —
This data set contains small-scale base GIS data layers compiled by the National Park Service Servicewide Inventory and Monitoring Program and Water Resources... -
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
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
Calibration datasets and model archive summaries for regression models developed to estimate metal concentrations at nine sites on the Animas and San Juan Rivers, Colorado, New Mexico, and Utah: U.S. Geological Survey data release, https://doi.org/10.5066/P9THSFE0
Department of the Interior —
This data release supports the following publication: Mast, M. A., 2018, Estimating metal concentrations with regression analysis and water-quality surrogates at nine... -
Federal
Continuous monitoring and discrete water-quality data from groundwater wells in the Edwards aquifer, Texas, 2014–15
Department of the Interior —
In cooperation with the San Antonio Water System, continuous and discrete water-quality data were collected from groundwater wells completed in the Edwards aquifer,... -
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
Great Smoky Mountains National Park Aquatic Macroinvertebrates Monitoring Locations
Department of the Interior —
These data depict the locations (only) of all Aquatic Macroinvertebrates Monitoring Locations study sites in the park. Great Smoky Mountains National Park (GRSM)... -
Federal
Daily Nooksack River Basin Nutrient Loading Estimates from 2018 to 2021
Department of the Interior —
The Nooksack River watershed comprises the majority of the Water Resources Inventory Area 1 (WRIA 1) located in Whatcom County in Washington State. From its... -
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
Water chemistry data for samples collected at groundwater and surface water sites in the Elk Hills study area, June 2017–April 2018, Kern County, California
Department of the Interior —
The California State Water Resources Control Board (State Water Board) initiated the Oil and Gas Regional Monitoring Program (RMP) to assess effects of oil and gas... -
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
Data from 2022 Mark-Recapture Analysis on Water and Endangered Fish in the Klamath Basin: Does Upper Klamath Surface Elevation and Water Quality Affect Adult Lost River and Shortnose Sucker survival?
Department of the Interior —
The data provided were used in a mark-recapture analysis conducted in 2022. Environmental covariates included water quality and Upper Klamath Lake surface elevation....