Geohydrology of Monitoring Wells Drilled in Oasis Valley Near Beatty, Nye County, Nevada, 1997

Water-Resources Investigations Report 98-4184
Version 1.1
November 2008

 By Armando R. Robledo, Philip L. Ryder, Joseph M. Fenelon, and Frederick L. Paillet

Table of Contents and Conversion Factors

Abstract
Introduction

Purpose and Scope
Description of Study Area
Geohydrologic Framework

Geology
Hydrology

Acknowledgments

Well Drilling

Site Selection
Drilling Procedures
Well Construction and Development

Geophysical Logging Methods
Geohydrology

Description of Stratigraphic Units in Boreholes
Geophysical Logs
Water Levels
Ground-Water Flow in Well ER-OV-06a

Summary
References Cited
Supplemental Data: Well Logs

FIGURES

1. Map showing regional features for Oasis Valley, Nevada
2. Map showing general features and monitoring wells for Oasis Valley, Nevada
3. Map showing regional geology for Oasis Valley, Nevada
4. Diagram showing typical construction of single- and multiple-well boreholes in Oasis Valley, Nevada
5. Graphs showing caliper and fluid-temperature logs and heat-pulse flowmeter interpretation from well ER-OV-06a, Oasis Valley, Nevada
6.-16. Graphs showing geologic and geophysical logs from well(s):

6. ER-OV-01
7. ER-OV-02
8. ER-OV-03a
9. ER-OV-03a2 and ER-OV-03a3
10. ER-OV-03b
11. ER-OV-03c
12. ER-OV-03c2
13. ER-OV-04a
14. ER-OV-05
15. ER-OV-06a
16. ER-OV-06a2

TABLES

1. Characteristics of monitoring wells in Oasis Valley, Nevada
2. Development rates, times, and volumes of water pumped for monitoring wells in Oasis Valley, Nevada
3. Types, properties measured, and application of geophysical logs used in Oasis Valley, Nevada
4. Stratigraphic and lithologic descriptions of monitoring wells in Oasis Valley, Nevada
5. Water levels in 12 monitoring wells in Oasis Valley, Nevada October 1997 and February 1998
6. Summary of inflow and outflow zones and relative transmissivities in borehole ER-OV-06a, Oasis Valley, Nevada

CONVERSION FACTORS, VERTICAL DATUM, AND ABBREVIATIONS

Temperature: Degrees Fahrenheit can be converted to degrees Celsius by using the formula ^oC=0.556(^oF-32).

Sea level: In this report, "sea level" refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929,
formerly called "Sea-Level Datum of 1929"), which is derived from a general adjustment of the first order
leveling networks of the United States and Canada.

Any use of trade names in this document is for descriptive purposes only and does not constitute endorsement by the U.S. Government.

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Last modified Monday, March 15, 1999 02:50 PM