Data were collected by the U.S. Geological Survey from 2003 through 2008 in the Eastern San Joaquin Groundwater Subbasin, 80 miles east of San Francisco, California, as part of a study of the increasing chloride concentrations in groundwater processes. Data collected include geologic, geophysical, chemical, and hydrologic data collected during and after the installation of five multiple-well monitoring sites, from three existing multiple-well sites, and from 79 selected public-supply, irrigation, and domestic wells. Each multiple-well monitoring site installed as part of this study contained three to five 2-inch diameter polyvinyl chloride (PVC)-cased wells ranging in depth from 68 to 880 feet below land surface. Continuous water-level data were collected from the 19 wells installed at these 5 sites and from 10 existing monitoring wells at 3 additional multiple-well sites in the study area. Thirty-one electromagnetic logs were collected seasonally from the deepest PVC-cased monitoring well at seven multiple-well sites. About 200 water samples were collected from 79 wells in the study area. Coupled well-bore flow data and depth-dependent water-quality data were collected from 12 production wells under pumped conditions, and well-bore flow data were collected from 10 additional wells under unpumped conditions.
Citation Information
Publication Year | 2012 |
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Title | Groundwater data for selected wells within the Eastern San Joaquin Groundwater Subbasin, California, 2003-8 |
DOI | 10.3133/ds696 |
Authors | Dennis A. Clark, John A. Izbicki, Loren F. Metzger, Rhett R. Everett, Gregory A. Smith, David R. O'Leary, Nicholas F. Teague, Matthew K. Burgess |
Publication Type | Report |
Publication Subtype | USGS Numbered Series |
Series Title | Data Series |
Series Number | 696 |
Index ID | ds696 |
Record Source | USGS Publications Warehouse |
USGS Organization | California Water Science Center |