Data for ground-water test hole near Butte City, Central Valley aquifer project, California

French, James J.; Page, R. W.; Bertoldi, G. L.

Abstract:

This report provides preliminary data for the third of seven test holes drilled as part of the Central Valley Aquifer Project which is part of the National Regional Aquifer Systems Analysis Program. The test hole was drilled in the SW 1/4 NE 1/4 sec. 32, T. 19 N., R. 1 W., Glenn County, California, about one-half mile south of the town of Butte City. Drilled to a depth of 1,432 feet below land surface, the hole is cased to a depth of 82 feet and equipped with three piezometer tubes to depths of 592 feet, 968 feet, and 1,330 feet. A 5-foot well screen is at the bottom of each piezometer. Each screened interval has a cement plug above and below it to isolate it from other parts of the aquifer , and the well bore is filled between the plugs with sediment. Nine cores and 49 sidewall cores were recovered. Laboratory tests were made for mineralogy, hydraulic conductivity, porosity , consolidation, grain-size distribution, Atterberg limits, X-ray diffraction, and chemical quality of water. Geophysical and thermal gradient logs were made. The hole is sampled periodically for chemical analysis and measured for water level in the three tapped zones. This report presents methods used to obtain field samples, laboratory procedures, and the data obtained. (USGS)

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USGS Numbered Series

ProdID:

7078

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French, James J.; Page, R. W.; Bertoldi, G. L.

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ENGLISH

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v, 59 p. ill., maps ;28 cm.

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U.S. Geological Survey,

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Open-File Report

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OFR

Citation Series Number:

83-697

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Data for ground-water test hole near Butte City, Central Valley aquifer project, California; 1983; OFR; 83-697; French, James J.; Page, R. W.; Bertoldi, G. L.

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1983

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citation/reference

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Data for ground-water test hole near Butte City, Central Valley aquifer project, California; 1983; OFR; 83-697; French, James J.; Page, R. W.; Bertoldi, G. L.