USGS

Lithologic and Ground-Water Data for Monitoring Sites in the Mojave River and Morongo Ground-Water Basins, San Bernardino County, California, 1992–98

By Julia A. Huff,Dennis A. Clark, and Peter Martin,

 

U.S. GEOLOGICAL SURVEY

Open-File Report 02-354

Sacramento, California 2002


Prepared in cooperation with the
Mojave Water Agency



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Main text of report (4.6 MB PDF)
Oeste Subarea—Appendix A (576 KB PDF)
Alto Subarea—Appendix B (7.5 MB PDF)
Transistion Zone Subarea—Appendix C (13.6 MB PDF)
Centro Subarea—Appendix D (13.8 MB PDF)
Baja Subarea—Appendix E (9.3 MB PDF)
Lucerne Subbasin—Appendix F (2.8 MB PDF)
Warren Subbasin—Appendix G (2.7 MB PDF)
Log data for monitoring sites in the Mojave River and
Morongo Ground-Water Basins, San Bernardino, CA, 1992-98


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Abstract

Lithologic and ground-water data were collected at 85 monitoring sites constructed in the Mojave Water Agency Management area in San Bernardino County, California, as part of a series of cooperative studies between the U.S. Geological Survey and the Mojave Water Agency. The data are being used to evaluate and address water-supply and water-quality issues. This report presents a compilation of the data collected at these sites from 1992 through 1998, including location and design of the monitoring sites, lithologic data, geophysical logs, ground-water-level measurements, and water-quality analyses.

One to five small (generally 2-inch) diameter wells were installed at each of the 85 monitoring sites to collect depth-dependent hydrologic data. Lithologic logs were compiled from descriptions of drill cuttings collected at each site and from observations recorded during the drilling of the borehole. Generalized stratigraphic columns were compiled by grouping similar lithologic units. Geophysical logs provide information on the character of the lithologic units and on the presence of ground water and the chemical characteristics of that water. Water-level and water-quality data were collected periodically from the sites during 1992 through 1998.

CONTENTS

Abstract

Introduction

Purpose and Scope

Description of Study Area

Acknowledgments

Location and Design of Monitoring Sites

Data Collection

Geologic Data

Lithologic Descriptions

Geophysical Logs

Core Measurements

Water-Level Data Collection

Water-Quality Data Collection

Data Presentation

Mojave River Ground-Water Basin

Oeste Subarea

Alto Subarea

Transition Zone Subarea

Centro Subarea

Baja Subarea

Morongo Ground-Water Basin

Lucerne Subbasin

Warren Subbasin

Accessing Data

Summary

References Cited

Appednix A. Lithologic Data and Ground-Water Data for the Mojave River Ground-Water Basin--Oeste Subarea

Appendix B. Lithologic Data and Ground-Water Data for the Mojave River Ground-Water Basin--Alto Subarea

Appendix C. Lithologic Data and Ground-Water Data for the Mojave River Ground-WaterBasin--Transistion Zone Subarea

Appendix D. Lithologic Data and Ground-Water Data for the Mojave River Ground-WaterBasin--Centro Subara

Appendix E. Lithologic Data and Ground-Water Data for the Mojave River Ground-WaterBasin--Baja Subarea

Appendix F. Lithologic Data and Ground-Water Data for the Morongo Ground-Water Basin--Lucerne Subbasin

Appendix G. Lithologic Data and Ground-Water Data for the Morongo Ground-WaterBasin--Warren Subbasin


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