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

UE-18r 370806116264001 01-29-1968 1,372.2 4,166 V R 3,632
    01-31-1968 1,372 4,166 V R 3,632
    06-11-1978 1,370 4,168 L -- 3,634
    06-12-1986 1,366.2 4,172 V -- 3,638
    06-25-1987 1,366.1 4,172 V -- 3,638
    03-23-1988 1,365.8 4,172 V -- 3,638
    12-12-1988 1,366.4 4,172 V -- 3,638
    05-03-1989 1,365.3 4,173 V -- 3,639
    10-12-1989 1,365.4 4,173 V -- 3,639
    04-12-1990 1,364.8 4,173 V -- 3,639
    11-06-1990 1,365.0 4,173 V -- 3,639
    04-24-1991 ,364.6 4,174 V -- 3,639
    09-25-1991 1,364.9 4,173 V -- 3,639
    05-21-1992 1,364.7 4,174 V -- 3,639
    05-18-1993 1,364.9 4,173 V -- 3,639
    11-18-1993 1,365.1 4,173 V -- 3,639
    05-25-1994 1,364.6 4,174 V -- 3,639
    11-16-1994 1,364.6 4,174 V -- 3,639
    03-25-1996 1,364.3 4,174 T -- 3,640
    06-13-1996 1,364.6 4,174 T -- 3,639
    09-11-1996 1,364.9 4,173 V -- 3,639
    11-14-1996 1,364.3 4,174 T -- 3,640
    03-18-1997 1,364.8 4,173 T -- 3,639
    06-16-1997 1,364.6 4,174 T -- 3,639
    09-24-1997 1,364.5 4,174 T -- 3,640
    03-23-1998 1,364.4 4,174 T -- 3,640
    06-25-1998 1,364.3 4,174 T -- 3,640
    09-28-1998 1,364.3 4,174 T -- 3,640
    12-14-1998 1,364.2 4,174 T -- 3,640

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Last modified: Tuesday, July 18, 2000