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Federal
Water chemistry data for samples collected at groundwater sites in the Placerita Oil Field study area, June 2018–November 2018, Los Angeles 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
Data used to model and map lithium concentrations in groundwater used as drinking water for the conterminous United States
Department of the Interior —
This data release contains data used to develop models and maps that estimate the occurrence of lithium in groundwater used as drinking water throughout the... -
Federal
Data set used to develop a conceptual framework for effectively anticipating water-quality changes resulting from changes in agricultural activities
Department of the Interior —
This USGS data release contains 2013 streamflow, baseflow, and precipitation data from three hydrologically-diverse streams in the United States used to develop a... -
Federal
Data Sets from the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota, USA (ver. 4.0, September 2025)
Department of the Interior —
This U.S. Geological Survey (USGS) Data Release provides data from samples and measurements completed at the National Crude Oil Spill Fate and Natural Attenuation... -
Federal
Produced water chemistry data collected from the Oxnard Oil Field, Ventura County, and the Placerita Oil Field, Los Angeles County, 2018, California
Department of the Interior —
The U.S. Geological Survey (USGS) in cooperation with the California State Water Resources Control Board collected produced water and gas samples in the Oxnard Oil... -
Federal
Arsenic, manganese, and pH groundwater quality data, selected well construction characteristics, and aquifer assignments for wells in the conterminous U.S.
Department of the Interior —
This data release contains groundwater-quality data for three parameters of interest (arsenic, manganese, and pH) and well information for sample sites for aquifers... -
Federal
MODFLOW 6 models for simulating groundwater flow and a proposed remediation system in the sole-source aquifer system in southeastern Nassau County, New York
Department of the Interior —
This model archive contains files for a set of groundwater flow, particle tracking, and management optimization models that simulate the area around the Navy-... -
Federal
Water and sediment data used to evaluate selenium hazards in the Salton Sea ecosystem
Department of the Interior —
Due to declining water levels and increasing salinity in the Salton Sea which may increase the hazards to wildlife, the U.S. Geological Survey and U.S. Bureau of... -
Federal
Data for assessing groundwater age and recharge rates using environmental tracers for groundwater basins in the Gilroy-Hollister area and northern San Joaquin Valley, California
Department of the Interior —
This dataset provides groundwater age estimates for 203 wells used as public- and domestic-supply in two selected areas of California. Groundwater ages were estimated... -
Federal
Concentrations of per- and polyfluoroalkyl substances in groundwater from the Great Miami buried-valley aquifer, southwestern Ohio, 2019–20
Department of the Interior —
The U.S. Geological Survey (USGS) in cooperation with the Miami Conservancy District, Dayton, Ohio, in 2019 and 2020 collected and analyzed groundwater samples to... -
Federal
Data used to estimate groundwater salinity above the Montebello Oil Field (California, USA)
Department of the Interior —
This release contains borehole geophysical electrical log data (elogs), total dissolved solids sample data (TDS), and geostatistical program files used to estimate... -
Federal
Datasets for the U.S. Geological Survey - Idaho National Laboratory groundwater and surface-water monitoring networks, v1.1
Department of the Interior —
A collection of analysis-ready datasets for the U.S. Geological Survey - Idaho National Laboratory (USGS-INL) groundwater and surface-water monitoring networks,... -
Federal
Airborne electromagnetic and magnetic survey data, southeastern San Joaquin Valley near Cawelo, California, 2016
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
Reconnaissance of Per- and Polyfluoroalkyl Substances (PFAS) in Selected Groundwater and Surface Water Sites in McHenry County, Illinois, 2020
Department of the Interior —
Data were collected at 19 groundwater monitoring wells and 3 surface water locations across McHenry County, Illinois, in 2020 by staff from the U.S. Geological Survey... -
Federal
Groundwater, surface water, bed sediment, soil, benthic macroinvertebrate taxa, habitat, and biological indices data collected near and at the Open Burning/Open Detonation (OB/OD) Areas at the Letterkenny Army Depot, Chambersburg, Pennsylvania, (ver. 3.0, September 2025)
Department of the Interior —
Groundwater, surface water, sediment and soil sampling was conducted by the U.S. Geological Survey (USGS) at nine groundwater wells, eight surface water sites, three... -
Federal
Extent of Artesian Conditions in San Joaquin Valley, CA in 1910
Department of the Interior —
Depth-to-water data in the San Joaquin Valley, CA were collected in 1910 and published in Mendenhall and others, 1916. These data were used to create a depth-to-water... -
Federal
Dataset of C1-C6 Dissolved Trace Hydrocarbon Measurements in the Western "Wet Gas" Part of the Marcellus Shale Oil and Gas Play in West Virginia, U.S.A. Collected between June and August 2018
Department of the Interior —
This dataset contains measurements of dissolved hydrocarbons in from groundwater samples collected in the shale gas producing regions of West Virginia, USA, between... -
Federal
Partial release of iron, alkalinity, and oxygen data from Bemidji crude oil site, Minnesota 1993-2016
Department of the Interior —
In a crude-oil-contaminated sandy aquifer at the Bemidji site in northern Minnesota, biodegradation of petroleum hydrocarbons resulted in transient increases in... -
Federal
Groundwater age categories based on tritium concentrations in samples collected from the Mississippi River Valley alluvial aquifer and aquifers of the Mississippi embayment principal aquifer system
Department of the Interior —
The Mississippi River Valley alluvial aquifer (MRVA) overlies and is bounded by several regional aquifers that make up the Mississippi embayment aquifer system (MEAS)... -
Federal
MODFLOW-NWT, MODPATH, and MT3DMS models used to study of hypothetical horizontal water-supply well design for New Hampshire and surrounding regions: U.S. Geological Survey data release
Department of the Interior —
A series of three-dimensional, hypothetical, groundwater models (MODFLOW-NWT) were developed to investigate the effects of a variety of factors on the flow of...