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Open-File Report 2006-1285

Prepared in cooperation with the Office of Repository Development of the
U.S. Department of Energy, under Interagency Agreement DE-AI28-02RW12167

Selected Ground-Water Data for Yucca Mountain Region, Southern Nevada and Eastern California, January–December 2004

By Richard J. La Camera, Glenn L. Locke, Aron M. Habte, and Jon G. Darnell

Download the report as a PDF (2.5 Mb): OFR2006-1285

ABSTRACT

The U.S. Geological Survey, in support of the U.S. Department of Energy, Office of Repository Development, collects, compiles, and summarizes hydrologic data in the Yucca Mountain region of southern Nevada and eastern California. These data are collected to allow assessments of ground-water resources during activities to determine the potential suitability or development of Yucca Mountain for storing high-level nuclear waste.

Data on ground-water levels at 35 boreholes and 1 fissure (Devils Hole), ground-water discharge at 5 springs, both ground-water levels and discharge at 1 flowing borehole, and total reported ground-water withdrawals within Crater Flat, Jackass Flats, Mercury Valley, and the Amargosa Desert are tabulated from January through December 2004. Also tabulated are ground-water levels, discharges, and withdrawals collected by other agencies (or collected as part of other programs) and data revised from those previously published at monitoring sites. Historical data on water levels, discharges, and withdrawals are presented graphically to indicate variations through time.

A statistical summary of ground-water levels at seven boreholes in Jackass Flats is presented for the period 1992–2004 to indicate potential effects of ground-water withdrawals associated with U.S. Department of Energy activities near Yucca Mountain. The statistical summary includes the annual number of measurements, maximum, minimum, and median water-level altitudes, and average deviation of measured water-level altitudes compared to the 1992–93 baseline period. At six boreholes in Jackass Flats, median water levels for 2004 were slightly higher (0.3–2.7 feet) than their median water levels for 1992–93. At one borehole in Jackass Flats, median water level for 2004 equaled the median water level for 1992–93.

Contents

Abstract

Introduction

Purpose and Scope

Acknowledgments

Description of Study Area

Alkali Flat–Furnace Creek Ranch Ground-Water Subbasin

Ash Meadows Ground-Water Subbasin

Data-Collection Sites

Ground-Water Levels

Electric Tape

Steel Tape

Pressure Sensor

Ground-Water Discharges

Ground-Water Withdrawals

Withdrawals from Alkali Flat–Furnace Creek Ranch Ground-Water Subbasin

Withdrawals from Ash Meadows Ground-Water Subbasin

Discussion of Ground-Water Levels and Ground-Water Withdrawals in Jackass Flats

References Cited

Basic Data

Figures

1. Map showing location of data-collection sites in the Yucca Mountain Region, southern Nevada and eastern California, 2004

2. Graphs showing periodic water levels for selected sites through 2004 at which primary contributing unit is carbonate rock

3. Graphs showing periodic water levels for selected sites through 2004 at which primary contributing unit is volcanic rock

4. Graphs showing periodic water levels for selected sites through 2004 at which primary contributing unit is basin fill

5. Graphs showing periodic water levels for selected sites through 2004 at which primary contributing unit is undifferentiated sedimentary rock

6. Graph showing daily mean water levels in (A) borehole JF-3, May 1992–December 2004 and in (B) borehole AD-6, July 1992–December 2004

7. Graphs showing discharge at sites (A) AM-1a (Fairbanks Spring), (B) AM-5a (Crystal Pool), and (C) AM-8 (Big Spring), 1910–2004 30

8. Graph showing discharge at sites AM-2 (Five Springs Well) and DV-2 (Navel Spring), 1990–2004

9. Graph showing discharge at site DV-1 (Texas Spring), 1989–2004

10. Map showing location of ground-water withdrawal sites and general areas of ground-water withdrawals in the Yucca Mountain region of southern Nevada and eastern California, January–December, 2004

11. Graph showing available estimates of annual ground-water withdrawals for selected areas within Alkali Flat–Furnace Creek Ranch ground-water subbasin, 1959–2004

12. Graph showing available estimates of annual ground-water withdrawals for selected areas within Ash Meadows ground-water subbasin, 1962–2004

13. Graphs showing water-level altitudes in boreholes JF-1, JF-2, JF-2a, J-13, J-11, J-12, and JF-3, and estimated annual ground-water withdrawals from Jackass Flats, 1983–2004

14. Graphs showing median water-level altitudes and average deviation of water levels for boreholes JF-1, JF-2, JF-2a, J-13, J-11, J-12, and JF-3, and estimated annual ground-water withdrawals from Jackass Flats, for 1992–93 baseline period and for 1994–2004

Tables

1. Index to monitoring sites in Yucca Mountain region, 2004

2. Borehole-completion data at monitoring sites in Yucca Mountain region

3. Periodic water-level data at monitoring sites in Yucca Mountain region, 2004

4. Daily mean water levels in borehole JF-3, 2004

5. Daily mean water levels in borehole AD-6, 2004

6. Electric-tape calibration data used to derive correction factors, 2004

7. Summary of pressure-sensor calibrations and associated error at boreholes JF-3 and AD-6, 2004

8. Ground-water-discharge data at monitoring sites in Yucca Mountain region, 2004

9. Estimated annual ground-water withdrawals from wells in Yucca Mountain region, 2004

10. Minimum, maximum, and median water-level altitudes, and average deviation of measurements, at selected boreholes in Jackass Flats for the baseline period 1992–93 and for calendar years 1994–2004

Send questions or comments about this report to the author, Glenn L. Locke

For more information about USGS activities in Nevada, visit the USGS Nevada Water Science Center home page.



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