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-20bg 371414116242901 01-08-1991  2,130.1 4,437 V C 70
    01-14-1991  2,130.1 4,437 V C 70
    01-30-1991  2,129.4 4,438 V C 71
    02-20-1991  2,129.4 4,438 V C 71
    03-22-1991  2,128.3 4,439 V C 72
 
    04-23-1991  2,130.1 4,437 V -- 70
    05-24-1991  2,130.0 4,437 V -- 70
    06-26-1991  2,129.9 4,437 V -- 70
    08-14-1991  2,131.0 4,436 V -- 69
    09-10-1991  2,131.3 4,436 V -- 69
 
    09-24-1991  2,131.8 4,435 V -- 68
    10-15-1991  2,132.5 4,435 V -- 68
    11-12-1991  2,132.9 4,434 V -- 67
    12-09-1991  2,133.2 4,434 V -- 67
    01-28-1992  2,133.4 4,434 V -- 67
 
    02-27-1992  2,133.2 4,434 V -- 67
    03-30-1992  2,134.0 4,433 V -- 66
    04-22-1992  2,133.7 4,434 V -- 66
    05-26-1992  2,132.8 4,434 V -- 67
    06-18-1992  2,133.1 4,434 V -- 67
 
    07-17-1992  2,133.3 4,434 V -- 67
    08-18-1992  2,133.3 4,434 V -- 67
    09-28-1992  2,134.0 4,433 V -- 66
    10-26-1992  2,134.4 4,433 V -- 66
    05-05-1993  2,134.7 4,433 V -- 65
 
    11-09-1993  2,135.6 4,432 V -- 64
    06-06-1994  2,135.3 4,432 V -- 65
    11-14-1994  2,135.6 4,432 V -- 64
    05-24-1995  2,136.3 4,431 V -- 64
    01-03-1996  2,137.5 4,430 V -- 62
 
    07-15-1996  2,137.4 4,430 T -- 63
    04-14-1997  2,137.3 4,430 T -- 63
    08-20-1997  2,137.3 4,430 T -- 63
    07-09-1998  2,137.3 4,430 T -- 63
    12-02-1998  2,137.8 4,429 T -- 62

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Last modified: Tuesday, July 18, 2000