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Federal
Compilation of total dissolved solids concentrations and specific conductance measurements in the Upper Colorado River Basin, 1894 – 2022
Department of the Interior —
This data release contains total dissolved solids (TDS) concentrations and specific conductance (SC) measurements collected at surface-water monitoring locations and... -
Federal
Iron concentration rasters of groundwater in the Mississippi River Valley alluvial and Claiborne aquifers
Department of the Interior —
Groundwater is a vital resource in the Mississippi embayment physiographic region (Mississippi embayment) of the central United States and can be limited in some... -
Federal
Nonvolatile dissolved organic carbon (NVDOC), total petroleum hydrocarbons at the USGS crude oil study site near Bemidji, Minnesota, USA (2018)
Department of the Interior —
This data set describes dissolved concentrations in groundwater of nonvolatile dissolved organic carbon (NVDOC), total petroleum hydrocarbons (TPH) in the gasoline... -
Federal
Blank results for trace-element data collected for the California Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project, October 2009–October 2018
Department of the Interior —
Groundwater samples have been collected in California as part of statewide investigations of groundwater quality conducted by the U.S. Geological Survey for the... -
Federal
Geochemical Data Supporting Analysis of Fate and Transport of Nitrogen in the Nearshore Groundwater and Subterranean Estuary near East Falmouth, Massachusetts, 2015-2016
Department of the Interior —
Geochemical data were obtained to investigate the fate and transport of nitrogen in a subterranean estuary near East Falmouth, Massachusetts. The goal of this... -
Federal
Water Quality, Streamflow Gain Loss, Geologic, and Geospatial Data Used in the Pecos River Basin Salinity Assessment from Santa Rosa Lake, New Mexico to the Confluence of the Pecos River and the Rio Grande, 1900-2015
Department of the Interior —
This Data Release contains various types of hydrologic and geologic data from the Pecos River Basin during 1900–2015, including water-quality data compiled and... -
Federal
Pesticide, organic-contaminant, and wastewater-indicator results for passive samplers deployed in surface water and groundwater in Hawaiʻi, 2015–19
Department of the Interior —
The U.S. Geological Survey (USGS) deployed passive samplers at surface-water and groundwater sites on the Hawaiian Islands of Kauaʻi, Oʻahu, Maui, and Hawaiʻi for... -
Federal
Geophysical, geological, hydrological, and geochemical data for aquifer salinity mapping in the Elk Hills, Buena Vista, and Coles Levee Oil Fields, Kern County, California
Department of the Interior —
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board (State Water Board) compiled and analyzed data for mapping... -
Federal
Water chemistry data for samples collected at groundwater sites near the Fruitvale oil field, September 2016–February 2017, Kern County, California (ver. 2.0, July 2020)
Department of the Interior —
As part of the California State Water Resources Control Board’s Oil and Gas Regional Monitoring Program , the U.S. Geological Survey collected groundwater and... -
Federal
Arsenic datasets and other physical and chemical measurements for selected domestic well-water supplies in Maine: 2001-2 and 2006-7
Department of the Interior —
The U.S. Geological Survey (USGS), in cooperation with the U.S. Centers for Disease Control and Prevention and the Maine Center for Disease Control and Prevention,... -
Federal
Wells sampled for groundwater-age dating in New Hanover County, North Carolina
Department of the Interior —
Sulfur hexafluoride (SF6) is a trace atmospheric gas that is primarily of anthropogenic origin but also occurs naturally in fluid inclusions in some minerals and... -
Federal
Hydrologic and Geochemical Data and Models Supporting Integrated Evaluation of the Captain Jack Superfund Site, Boulder County, Colorado
Department of the Interior —
The Captain Jack Superfund site near Ward, Colorado hosts extensive interconnected underground mine workings, which drain via the Big Five Adit. Drainage from the... -
Federal
Airborne electromagnetic and magnetic survey data, southeastern San Joaquin Valley near Cawelo, California, 2016: Resistivity models
Department of the Interior —
Airborne electromagnetic (AEM) and magnetic survey data were collected during October 2016 over a total distance of 262 line kilometers in the southeastern San... -
Federal
Model Archive for an Impulse Response Emulator of Groundwater Contaminant Transport Models
Department of the Interior —
This archive contains the code and other files to demonstrate the creation and application of an impulse-response emulator for process-based groundwater flow and... -
Federal
Dissolved oxygen probability rasters of groundwater in the Mississippi River Valley alluvial and Claiborne aquifers
Department of the Interior —
Groundwater is a vital resource in the Mississippi embayment physiographic region (Mississippi embayment) of the central United States and can be limited in some... -
Federal
Collection of Pesticides and Other Water Quality Analytical Data from Selected Hydrogeologic Regions of Pennsylvania (ver. 2.0, September 2025)
Department of the Interior —
These datasets contain all publicly available analytical data collected by the U.S. Geological Survey (USGS) by the Pennsylvania Pesticides in Vulnerable Groundwaters... -
Federal
Water chemistry data for samples collected at groundwater and surface-water sites in the San Ardo Oil Field study area, March 2019–May 2021, Monterey 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
Groundwater, surface water, and soil data collected near and at the Ammonium Perchlorate Rocket Motor Destruction (ARMD) facility at the Letterkenny Army Depot, Chambersburg, Pennsylvania
Department of the Interior —
Sampling was conducted by the U.S. Geological Survey (USGS) at four wells, one surface water site, and five soil sampling locations near and at the Ammonium... -
Federal
Toxicity Data for Groundwater Contaminated by Petroleum Hydrocarbons near Bemidji, MN (2016)
Department of the Interior —
Management of petroleum-impacted waters by monitored natural attenuation (MNA) requires an understanding of the toxicology of both the original compounds released as... -
Federal
Data and Model Archive for Preliminary Machine Learning Models of Manganese and 1,4-Dioxane in Groundwater on Long Island, New York
Department of the Interior —
Data and preliminary machine-learning models used to predict manganese and 1,4-dioxane in groundwater on Long Island are documented in this data release....