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

ER-20-1 371321116292301 10-12-1994 1,987.7 4,193 V C? 77
    02-27-1995 1,988.3 4,193 V -- 77
    06-20-1995 1,988.3 4,193 V -- 77
    09-22-1995 1,988.6 4,192 V -- 76
    12-14-1995 1,988.4 4,192 T -- 77
 
    03-12-1996 1,988.2 4,193 T -- 77
    06-10-1996 1,988.4 4,193 T -- 77
    09-05-1996 1,988.2 4,193 T -- 77
    11-13-1996 1,988.5 4,192 T -- 77
    03-10-1997 1,988.5 4,192 T -- 77
 
    06-09-1997 1,988.3 4,193 T -- 77
    09-22-1997 1,988.3 4,193 T -- 77
    01-07-1998 1,988.3 4,193 T -- 77
    03-19-1998 1,988.4 4,193 T -- 77
    06-22-1998 1,988.4 4,193 T -- 77
 
    09-24-1998 1,988.4 4,193 T -- 77
    12-08-1998 1,988.6 4,192 T -- 76

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Last modified: Tuesday, July 18, 2000