Data
GIS Data
California Groundwater Ambient Monitoring and Assessment (GAMA) Program Domestic-Supply (Shallow) Aquifer Assessment Study Unit Boundaries and Grid Cells for Assessment of Groundwater Resources (version 3, January 2023)
Watson, E., Johnson, T.D. and Dupuy, D.I., 2023,U.S. Geological Survey data release
DOI: 10.5066/P931PZRC
Groundwater-quality data in the Coachella Valley Domestic Supply Aquifer Study Unit, 2020: Results from the California GAMA Priority Basin Project
Soldavini, A.L., Goldrath, D.A., Shelton, J.L., Johnson, T.D., and Watson, E., 2022,U.S. Geological Survey data release
DOI: 10.5066/P9UYXI95
California Groundwater Ambient Monitoring and Assessment (GAMA) Program Shallow Aquifer Assessment Study Unit Grid Cells for Assessment of Groundwater Resources
Watson, E. and Johnson, T.D., 2021,U.S. Geological Survey data release
DOI: 10.5066/P931PZRC
Groundwater-quality data in the Northern San Joaquin Valley Domestic-Supply Aquifer Study Unit, 2019
Balkan, M., Levy, Z.F., Shelton, J.L., Johnson, T.D., and Watson, E., 2021,U.S. Geological Survey data release
DOI: 10.5066/P9Q083IB
Groundwater-quality data in the Redding-Red Bluff Shallow Aquifer Study Unit, 2018-2019: Results from the California GAMA Priority Basin Project
Shelton, J.L, Bennett, G.L., Watson, E., and Johnson, T.D., 2020,U.S. Geological Survey data release
DOI: 10.5066/P9ZKAH3O
Groundwater-Quality Data in the Mojave Basin Shallow Aquifer Study Unit, 2018: Results from the California GAMA Priority Basin Project
Groover, K.D., Goldrath, D.A., Bennett, G.L., Johnson, T.D., and Watson, E.E., 2019,U.S. Geological Survey data release
DOI: 10.5066/P9C7U6DW
Groundwater-quality data in the Sacramento Metro shallow aquifer study unit, 2017: Results from the California GAMA Priority Basin Project
Bennett, G.L., V., Shelton, J.L., Watson, E., Johnson, T.D., and Jasper, M., 2019,U.S. Geological Survey data release
DOI: 10.5066/P9BPGEGH
Johnson, T.D., Watson, E.E., and Belitz, K., 2018,U.S. Geological Survey Data Release
DOI: 10.5066/F79Z93CN
Voss, S.A., and Jurgens, B.C., 2018,U.S. Geological Survey Data Release
DOI: 10.5066/F76Q1V9G
Spatial Point Data Sets and Interpolated Surfaces of Well Construction Characteristics for Domestic and Public Supply Wells in the Central Valley, California, USA
Voss, S.A., and Jurgens, B.C., 2018,U.S. Geological Survey data release
DOI: 10.5066/F76Q1V9G
Groundwater-quality data in the Mokelumne, Cosumnes, and American River Watersheds Shallow Aquifer Study Unit, 2016-2017: Results from the California GAMA Priority Basin Project
Shelton, J.L., Fram, M.S., Goldrath, D.A., Bennett, G.L., V, and Jasper, M., 2018,U.S. Geological Survey data release
California Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project Study Areas and grid cells for assessment of groundwater resources used for public drinking-water supply
Johnson, T.D., Watson, E., and Belitz, K., 2018,U.S. Geological Survey data release
DOI: 10.5066/F79Z93CN
Groundwater-quality data and ancillary data for selected wells in the San Joaquin Valley, California, 1900-2015
Hansen, J.A., Jurgens B.C., and Fram, M.S., 2018,U.S. Geological Survey data release
DOI: 10.5066/F7319T3K
Groundwater-Quality Data in the Yuba and Bear Watersheds Shallow Aquifer Study Unit, 2015-2016: Results from the California GAMA Priority Basin Project
Jasper, M., Bennett, G.L., and Fram, M.S., 2017,U.S. Geological Survey data release
DOI: 10.5066/F73F4MS9
Groundwater-Quality Data in the Tulare Shallow Aquifer Study Unit, 2014-2015: Results from the California GAMA Priority Basin Project
Bennett, G.L., V, Fram, M.S., and Johnson, T.D., 2017,U.S. Geological Survey data release
DOI: 10.5066/F7BP00W8
California Groundwater Units
Johnson, T.D., and Belitz, K., 2014,U.S. Geological Survey Data Series 796, 34 p.
DOI: 10.3133/ds796
Johnson, T.D., and Belitz, K., 2014,U.S. Geological Survey Data Series 796, 34 p.
DOI: 10.3133/ds796
Johnson, T.D., and Belitz, K., 2003,U.S. Geological Survey Open-File Report 03-470
DOI: 10.3133/ofr03470
Hydrogeologic Provinces for California based upon established groundwater basins and watershed polygons
Johnson, T.D., and Belitz, K., 2003,U.S. Geological Survey Open-File Report 2003-470
DOI: 10.3133/ofr03470