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 -20at 1 371452116303301 12-09-1986 2,026 4,215 L -- 171
    12-14-1986 2,026 4,215 L -- 171
    01-07-1987 2,028 4,213 L -- 169
    02-13-1987 2,027 4,214 L -- 170

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