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 -20n PS 1DD-H

371425116252401

05-17-1985  2,037.9 4,430 V X 831

 

 

05-17-1985  2,038.2 4,430 V X 831

 

 

05-20-1985  2,039.2 4,429 V X 830

 

 

09-03-1985  2,038.5 4,430 V X 831

 

 

12-08-1986  2,040.4 4,428 V X 829

 

 

 

04-21-1987  2,042.9 4,425 V X 826

 

 

04-24-1987  2,043.1 4,425 V X 826

 

 

05-01-1987  2,040.0 4,428 V X 829

 

 

05-01-1987  2,040.1 4,428 V X 829

 

 

06-01-1987  2,041.7 4,426 V X 827

 

 

 

11-19-1987  2,043.4 4,425 V X 826

 

 

07-19-1988  2,042.7 4,425 V X 826

 

 

12-14-1988  2,043.6 4,425 V X 825

 

 

04-11-1989  2,042.2 4,426 V X 827

 

 

07-14-1989  2,043.6 4,425 V X 825

 

  

  

08-16-1989  2,043.4 4,425 V X 826

  

  

10-11-1989  2,044.5 4,424 V X 825

 

 

04-12-1990  2,043.2 4,425 V X 826
    05-08-1990  2,043.7 4,424 V X 825
    06-04-1990  2,044.6 4,424 V X 824

 

 

 

07-09-1990  2,043.3 4,425 V X 826
    11-23-1990  2,046.4 4,422 V X 823
    02-12-1991  2,047.9 4,420 V X 821
    04-30-1991  2,047.5 4,421 V X 822
    07-29-1991  2,048.3 4,420 V X 821
 
    09-23-1991  2,047.9 4,420 V X 821
    01-16-1992  2,046.5 4,422 V X 822
    05-22-1992  2,048.9 4,419 V X 820
    07-29-1992  2,049.6 4,419 V X 819
    05-25-1993  2,049.8 4,418 V X 819
 
    11-16-1993  2,051.1 4,417 V X 818
    06-21-1994  2,050.1 4,418 V X 819
    10-26-1994  2,050.1 4,418 V X 819
    06-21-1995  2,050.6 4,418 V X 818
    11-17-1995  2,051.7 4,416 V X 817
 
    06-25-1996  2,052.6 4,415 V X 816
    08-27-1997  2,051.0 4,417 T X 818
    07-09-1998  2,050.6 4,417 T X 818

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