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 -20aw 371658116244401 12-10-1986 2,086 4,499 L -- 14
    01-14-1987 2,085 4,500 L -- 15
    03-04-1987 2,086 4,499 L -- 14
    08-04-1988 2,085.5 4,500 V -- 15
    08-05-1988 2,085.4 4,500 V -- 15
 
    08-10-1988 2,085.4 4,500 V -- 15
    08-15-1988 2,085.6 4,499 V -- 14
  08-26-1988 2,085.4 4,500 V -- 15
    09-01-1988 2,085.4 4,500 V -- 15
    11-04-1988 2,086.0 4,499 V -- 14

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Last modified: Tuesday, July 18, 2000