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Chemical quality of ground water in San Joaquin and part of Contra Costa Counties, California

January 1, 1994

Chemical water-quality conditions were investigated in San Joaquin and part of Contra Costa Counties by canvassing available wells and sampling water from 324 representative wells. Chemical water types varied, with 73 percent of the wells sampled containing either calcium-magnesium bicarbonate, or calcium-sodium bicarbonate type water. Substantial areas contain ground water exceeding water-quality standards for boron, manganese, and nitrate. Trace elements, with the exception of boron and manganese, were present in negligible amounts. (USGS)

Citation Information

Publication Year 1981
Title Chemical quality of ground water in San Joaquin and part of Contra Costa Counties, California
DOI 10.3133/wri8126
Authors Stephen K. Sorenson
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Water-Resources Investigations Report
Series Number 81-26
Index ID wri8126
Record Source USGS Publications Warehouse
USGS Organization