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Open-File Report 2010-1063

Digital Tabulation of Geologic and Hydrologic Data from Water Wells in the Northern San Francisco Bay Region, Northern California

By D.S. Sweetkind and E.M. Taylor

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Downhole lithologic information and aquifer pumping test data are reported from 464 wells from a broad area of the northern part of the Coast Ranges in California. These data were originally published in paper form as numerous tables within three USGS Water-Supply Papers describing geology and groundwater conditions in Napa and Sonoma Valleys, the Santa Rosa and Petaluma Valley areas, and in the Russian River Valley and areas in Sonoma and Mendocino Counties, Calif. The well data are compiled in this report in digital form suitable for use in a digital mapping environment. These data, although mostly from relatively shallow water wells, provide important subsurface information that displays the disposition and facies transition of lithologic units throughout this broad area. Well lithologic data themselves and simple three-dimensional interpolation of those data show distinct spatial patterns that are linked to subsurface stratigraphy and structure and can be used to aid in the assessment of the groundwater resources.

First posted April 21, 2010

  • Plate 1 PDF (176.9 MB)
    Location of Water Wells with Total Depth and Units Penetrated in the Northern San Francisco Bay Region, Northern California

For additional information contact:

USGS Central Mineral and Environmental Resources Science Center
Box 25046, MS-973
Denver Federal Center
Denver, CO 80225

http://minerals.cr.usgs.gov/

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Suggested citation:

Sweetkind, D.S., and Taylor, E.M., 2010, Digital tabulation of geologic and hydrologic data from water wells in the northern San Francisco Bay region, northern California: U.S. Geological Survey Open-File Report 2010-1063, 125 p.



Contents

Abstract

Introduction

Data-Compilation Methodology

Visualization of Lithologic and Stratigraphic Data

Summary

Acknowledgments

References Cited


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