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Federal
Data for groundwater age estimates for the Mississippi River Valley alluvial aquifer based on tracer data collected during 2018-20
Department of the Interior —
This data release contains tracer data and estimated age distributions of groundwater samples collected as part of a water availability study for the Mississippi... -
Federal
Dissolved Noble Gas Concentrations and Modeled Recharge Temperatures for Groundwater from Northern Sierra Nevada Foothills Shallow Aquifer Assessment Study Units, 2015-2017: Results from the California GAMA Priority Basin Project
Department of the Interior —
This data release documents 155 sets of dissolved noble gas analyses (neon, argon, krypton, xenon) and 153 modeled recharge temperatures for groundwater sampled from... -
Federal
Recharge temperatures and groundwater-age models for the Paradox Valley alluvial aquifer, 2011, Colorado
Department of the Interior —
The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation, began hydrogeologic investigations in 2009 in the Paradox Valley in Colorado. In... -
Federal
Data for Distribution of Groundwater Age in Aquifers Used for Public Supply in the Continental United States, 2004 - 2017 (Version 1.1: June 2022).
Department of the Interior —
This data release documents seven tables that contain environmental tracer data and lumped parameter model (LPM) results that are used for assessing the distribution... -
Federal
Data for assessing the penetration depth post-1950s water in the Central Valley aquifer system, California (July 2022)
Department of the Interior —
This dataset provides groundwater ages estimates that were used in an assessment of the penetration depth of modern groundwater in the Central Valley aquifer system... -
Federal
Groundwater data and age information from samples collected in Minnesota, 1996-1997
Department of the Interior —
Groundwater age distributions and susceptibility to natural and anthropogenic contaminants were assessed for selected wells across Minnesota. The data provide... -
Federal
Noble gas isotopes and lumped parameter model results for environmental tracer based groundwater ages, South Rim Grand Canyon, Arizona, USA
Department of the Interior —
This data release documents three Microsoft Excel tables; one contains noble gas isotopic data, one contains data for understanding groundwater ages in the South Rim... -
Federal
Recharge temperatures and groundwater-age models for the Paradox Valley alluvial aquifer, 2011, Colorado
Department of the Interior —
The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation, began hydrogeologic investigations in 2009 in the Paradox Valley in Colorado. In... -
Federal
Groundwater data and age information from samples collected in Minnesota (ver. 3.0, December 2025)
Department of the Interior —
Groundwater age distributions and susceptibility to natural and anthropogenic contaminants were assessed for selected wells, streambed piezometers, and springs in... -
Federal
Data for assessing the penetration depth post-1950s water in the Central Valley aquifer system, California (July 2022)
Department of the Interior —
This dataset provides groundwater ages estimates that were used in an assessment of the penetration depth of modern groundwater in the Central Valley aquifer system... -
Federal
Data for Distribution of Groundwater Age in Aquifers Used for Public Supply in the Continental United States, 2004 - 2017 (Version 1.1: June 2022).
Department of the Interior —
This data release documents seven tables that contain environmental tracer data and lumped parameter model (LPM) results that are used for assessing the distribution... -
Federal
Lumped parameter models of groundwater age and noble gas models of recharge conditions in support of Groundwater and Surface-Water Resources near Red Fleet Reservoir, Uintah County, UtahLumped parameter models of groundwater age and noble gas models of recharge conditions in support of Groundwater and Surface-Water Resources near Red Fleet Reservoir, Uintah County, Utah
Department of the Interior —
This data release documents four Microsoft Excel tables; one contains data for understanding water ages, one contains noble gas model data, two that describe the data... -
Federal
Dissolved Noble Gas Concentrations and Modeled Recharge Temperatures for Groundwater from Northern Sierra Nevada Foothills Shallow Aquifer Assessment Study Units, 2015-2017: Results from the California GAMA Priority Basin Project
Department of the Interior —
This data release documents 155 sets of dissolved noble gas analyses (neon, argon, krypton, xenon) and 153 modeled recharge temperatures for groundwater sampled from... -
Federal
Groundwater data and age information from samples collected in Minnesota (ver. 3.0, December 2025)
Department of the Interior —
Groundwater age distributions and susceptibility to natural and anthropogenic contaminants were assessed for selected wells, streambed piezometers, and springs in... -
Federal
Lumped parameter models of groundwater age and noble gas models of recharge conditions in support of Groundwater and Surface-Water Resources near Red Fleet Reservoir, Uintah County, UtahLumped parameter models of groundwater age and noble gas models of recharge conditions in support of Groundwater and Surface-Water Resources near Red Fleet Reservoir, Uintah County, Utah
Department of the Interior —
This data release documents four Microsoft Excel tables; one contains data for understanding water ages, one contains noble gas model data, two that describe the data... -
Federal
Data for assessing the penetration depth post-1950s water in the Central Valley aquifer system, California (July 2022)
Department of the Interior —
This dataset provides groundwater ages estimates that were used in an assessment of the penetration depth of modern groundwater in the Central Valley aquifer system... -
Federal
Lumped parameter models of groundwater age and noble gas models of recharge conditions in support of Groundwater and Surface-Water Resources near Red Fleet Reservoir, Uintah County, UtahLumped parameter models of groundwater age and noble gas models of recharge conditions in support of Groundwater and Surface-Water Resources near Red Fleet Reservoir, Uintah County, Utah
Department of the Interior —
This data release documents four Microsoft Excel tables; one contains data for understanding water ages, one contains noble gas model data, two that describe the data... -
Federal
Groundwater data and age information from samples collected in Minnesota, 1996-1997
Department of the Interior —
Groundwater age distributions and susceptibility to natural and anthropogenic contaminants were assessed for selected wells across Minnesota. The data provide... -
Federal
Data for groundwater age estimates for the Mississippi River Valley alluvial aquifer based on tracer data collected during 2018-20
Department of the Interior —
This data release contains tracer data and estimated age distributions of groundwater samples collected as part of a water availability study for the Mississippi... -
Federal
Recharge temperatures and groundwater-age models for the Paradox Valley alluvial aquifer, 2011, Colorado
Department of the Interior —
The U.S. Geological Survey (USGS), in cooperation with the Bureau of Reclamation, began hydrogeologic investigations in 2009 in the Paradox Valley in Colorado. In...