Water level measurements in 52 shallow boreholes in the San Francisco Bay region
Open-File Report
78-935
By: Edward F. Roth
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Abstract
Water-level measurements have been read in 52 cased boreholes in the San Francisco bay region. These measurements are compared to water-table depths determined by P-wave velocity. A velocity in excess of 1200 m/s is taken as the depth of the upper surface of the water table. This method works best in saturated alluvium, and fails in dry rock because of P-wave velocities greater than 1200 m/s.
Suggested Citation
Roth, E.F., 1978, Water level measurements in 52 shallow boreholes in the San Francisco Bay region: U.S. Geological Survey Open-File Report 78-935, ii, 94 leaves :ill., maps ;28 cm.; (97 p., 1 sheet - PGS), https://doi.org/10.3133/ofr78935.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Water level measurements in 52 shallow boreholes in the San Francisco Bay region |
| Series title | Open-File Report |
| Series number | 78-935 |
| DOI | 10.3133/ofr78935 |
| Year Published | 1978 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | ii, 94 leaves :ill., maps ;28 cm.; (97 p., 1 sheet - PGS) |