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Groundwater-quality data in the Northern San Joaquin Valley Domestic-Supply Aquifer Study Unit, 2019: Tables

Dates

Publication Date
Start Date
2019-07-08
End Date
2019-09-25

Citation

Balkan, M., Levy, Z.F., Shelton, J.L., Johnson, T.D., and Watson, E., 2021, Groundwater-quality data in the Northern San Joaquin Valley Domestic-Supply Aquifer Study Unit, 2019: Results from the California GAMA Priority Basin Project: U.S. Geological Survey data release, https://doi.org/10.5066/P9Q083IB.

Summary

The U.S. Geological Survey collected groundwater samples from 46 wells used for domestic and small system drinking water supplies in San Joaquin, Calaveras, and Stanislaus counties, California in 2019. The wells were sampled for the Northern San Joaquin Valley Domestic-Supply Aquifer Study Unit of the California State Water Resources Control Board Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project’s assessment of the quality of groundwater resources used for domestic and small system drinking water supplies. Domestic and small-system wells are commonly screened at shallower depths than public-supply wells. The Northern San Joaquin Valley study unit encompasses the Eastern San Joaquin groundwater subbasin [...]

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Attached Files

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GAMA_S10_Table01_Sites.xlsx 17.62 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table02_Constituents.xlsx 40.33 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table03_Field.xlsx 17 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table04_VOCs.xlsx 15.06 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table05_Pesticides.xlsx 13.96 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table06_TraceElements_MajorIons.xlsx 26.31 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table07_Nutrients.xlsx 17.57 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table08_Isotopes.xlsx 16.16 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table09_PFAS.xlsx 14.31 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table10_BlankDetects.xlsx 13.91 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table11_Replicates.xlsx 21.35 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
GAMA_S10_Table_Explanations.docx 719.3 KB application/vnd.openxmlformats-officedocument.wordprocessingml.document

Purpose

This data release presents the data collected for the Groundwater Ambient Monitoring and Assessment Program Priority Basin Project the Northern San Joaquin Valley Domestic-Supply Aquifer Study Unit in 2019. These data include: study unit and grid cell boundaries, groundwater site information for the 46 grid wells, water-quality results for samples collected from the 46 grid wells, and water-quality results for quality-control samples collected from 10 groundwater sites. Subsequent publications will present analysis and interpretation of these data. This document provides information necessary to understand the results presented in 11 tables provided in this data release.

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  • USGS California Water Science Center

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