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Data Series 522

In cooperation with the San Antonio Water System

Geodatabase Design and Characteristics of Geologic Information for a Geodatabase of Selected Wells Penetrating the Austin Group in Central Bexar County, Texas, 2010

By Diana E. Pedraza and Sachin D. Shah

Abstract

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The U.S. Geological Survey, in cooperation with the San Antonio Water System, developed a geodatabase of geologic and hydrogeologic information for selected wells penetrating the Austin Group in central Bexar County, Texas. The Austin Group functions as an upper confining unit to the Edwards aquifer and is the thickest and most permeable of the Edwards aquifer confining units. The geologic and hydrogeologic information pertains to a 377-square-mile study area that encompasses central Bexar County. Data were compiled primarily from drillers’ and borehole geophysical logs from federal, State, and local agencies and published reports. Austin Group characteristics compiled for 523 unique wells are documented (if known), including year drilled, well depth, altitude of top and base of the Austin Group, and thickness of the Austin Group.

First posted September 28, 2010

For additional information contact:

Director, Texas Water Science Center
U.S. Geological Survey
1505 Ferguson Lane
Austin, TX 78754-4501

http://tx.usgs.gov/

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Suggested citation:

Pedraza, D.E., and Shah, S.D., 2010, Geodatabase design and characteristics of geologic information for a geodatabase of selected wells penetrating the Austin Group in central Bexar County, Texas, 2010: U.S. Geological Survey Data Series 522, 39 p.



Contents

Abstract

Introduction

Geodatabase Design

Characteristics of Geologic Information for Selected Wells Penetrating the Austin Group

References

Appendix 1. Wells Selected for Inclusion in Geodatabase of Selected Wells Penetrating the Austin Group, Central Bexar County, Texas, 2010