Found 41 datasets matching filters.
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The California Groundwater Ambient Monitoring and Assessment Program (GAMA) is a statewide, comprehensive assessment of groundwater quality designed to help better understand and identify risks to...
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
The U.S. Geological Survey collected groundwater samples from 67 domestic wells and 1 spring used for domestic supply in Placer, El Dorado, Amador, and Calaveras Counties, California in 2016-2017....
Search relevance: 1.00 | Views last month: 3 | Published on: 2026-03-03 -
The U.S. Geological Survey collected groundwater samples from 50 wells used for domestic and small system drinking water supplies in Shasta and Tehama Counties, California in 2018-2019. The wells...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
The U.S. Geological Survey collected groundwater samples from 71 domestic wells and 4 springs in Nevada, Yuba, Sierra, and Placer Counties, California in 2015-2016. The wells and springs were...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
This data release documents 155 sets of dissolved noble gas analyses (neon, argon, krypton, xenon) and 153 modeled recharge temperatures for groundwater sampled from domestic water supply wells...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
The U.S. Geological Survey collected groundwater samples from 49 wells used for domestic and small system drinking water supplies in Amador, Placer, Sutter, and Sacramento Counties, California in...
Search relevance: 1.00 | Views last month: 1 | Published on: 2026-03-03 -
The California Groundwater Ambient Monitoring and Assessment Program (GAMA) is a statewide assessment of groundwater quality designed to help better understand and identify risks to groundwater...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
This data release codifies and attributes explanatory factors that could potentially impact groundwater quality at 49 groundwater sites used for domestic water supply in the Sacramento...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
This data release codifies and attributes explanatory variables that could potentially influence groundwater quality at 50 groundwater wells used for domestic water supply and 43 groundwater sites...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
Groundwater-quality data collected between 1993 and 2015 were compiled from the U.S. Geological Survey (USGS) National Water Information System (NWIS) database for 722 wells in the San Joaquin...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
The California Groundwater Ambient Monitoring and Assessment Program (GAMA) is a statewide assessment of groundwater quality designed to help better understand and identify risks to groundwater...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
The U.S. Geological Survey collected groundwater samples from 48 grid wells and 11 understanding wells screened in aquifers used for domestic supply in San Bernardino County, California, in 2018....
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
This data release includes tables and time-series plots of results for volatile organic compounds (VOCs) analyzed in samples of groundwater used for public supply that were collected by the USGS...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
The U.S. Geological Survey collected groundwater samples from 38 wells used for domestic and small system drinking water supply in the Coachella Valley of California in 2020. The wells were...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
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 (CVAL). Groundwater ages were...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
This data release codifies and attributes explanatory factors that could potentially impact groundwater quality at 142 groundwater sites (wells or developed springs) used for domestic water supply...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
Groundwater samples have been collected in California as part of statewide investigations of groundwater quality conducted by the U.S. Geological Survey for the Groundwater Ambient Monitoring and...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
The U.S. Geological Survey collected groundwater samples from 67 wells and 1 spring used for domestic and small system drinking water supplies in Placer, El Dorado, Amador, and Calaveras Counties,...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03 -
The California Groundwater Units dataset classifies and delineates the State into one of three groundwater based polygon units: (1) those areas defined as alluvial groundwater basins or...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-07 -
The U.S. Geological Survey collected groundwater samples from 49 wells used for domestic and small system drinking water supplies in Amador, Placer, Sutter, and Sacramento counties, California in...
Search relevance: 1.00 | Views last month: 0 | Published on: 2026-03-03
