WRIR 00-4014
Quality Assurance and Analysis of Water Levels in Wells on Pahute Mesa and Vicinity, Nevada Test Site


CONTENTS

Abstract
Introduction
Water-Level Measurements
Sources of Water-Level Fluctuations
Analysis of Water Levels

Summary
References Cited
Appendix 1
Appendix 2

Appendix 2. Water-level measurements for selected wells on Pahute Mesa and vicinity, Nevada Test Site, 1963-98

Method used to determine depth to water: L, interpreted from geophysical log; R, reported, method not known; S, calibrated steel-tape measurement; T, calibrated electric tape; V, calibrated electric cable (wire line or iron horse).

Quality-assurance flag: A, anomalous value; AT, water level does not agree with second access tube in same open interval; C, affected by  well construction, queried where uncertain; D, dry hole; H or L, static water level in well is elevated above (H) or depressed below (L) regional ground-water level; R, well pumping or recently pumped; N, water level affected by nuclear test; X, water level corrected for borehole deviation; --, no flag applied

Water above bottom of open interval: length of water column in well from top of water to bottom of open interval listed in table 1.

USGS
well name
USGS site
identification
number
Water-level measurement Water above
bottom of
open interval
(feet)
Date Depth below
land surface
(feet)
Altitude
(feet above
sea level)
Method Quality-
assurance
flag
U -20ai 371551116262501 09-26-1981 2,054 4,449 L -- 100
    05-03-1982 2,053 4,450 L -- 101
    12-15-1983 2,057 4,446 L -- 97
    10-10-1984 2,054 4,449 L -- 100
    11-30-1984 2,050.0 4,453 V -- 104
    03-12-1985 2,054.6 4,448 V -- 99
    10-30-1985 2,052 4,451 L -- 102

Table of Contents
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Last modified: Tuesday, July 18, 2000