In cooperation with the

U.S. AIR FORCE

Generalized Water-Level Contours, September−

October 2000 and March−April 2001, and Long-Term 

Water-Level Changes, at the U.S. Air Force Plant 42 

and Vicinity, Palmdale, California

Scientific Investigations Report 2005-5074
 

U.S. DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY
COVER PHOTO:

Satellite image processed 

by Michael J. Rymer, 

USGS, Geologic Division
Generalized Water-Level Contours,

September–October 2000 and March–April

2001, and Long-Term Water-Level Changes,

at the U.S. Air Force Plant 42 and Vicinity,

Palmdale, California

By Allen H. Christensen

In cooperation with the U.S. Air Force

Scientific Investigations Report 2004-5074

U.S. Department of the Interior

U.S. Geological Survey
U.S. Department of the Interior

Gale A. Norton, Secretary

U.S. Geological Survey

Charles G. Groat, Director

U.S. Geological Survey, Reston, Virginia: 2005

For sale by U.S. Geological Survey, Information Services
 

Box 25286, Denver Federal Center
 

Denver, CO 80225
 

For more information about the USGS and its products:
 

Telephone: 1-888-ASK-USGS
 

World Wide Web: http://www.usgs.gov/
 

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply 
 

endorsement by the U.S. Government.
 

Although this report is in the public domain, permission must be secured from the individual copyright owners to 
 

reproduce any copyrighted materials contained within this report.
 

Suggested citation:
 

Christensen, A.H. , 2005, Generalized Water-Level Contours, September–October 2000 and March–April 2001, 
 

and Long-Term Water-Level Changes at the U.S. Air Force Plant 42 and Vicinity, Palmdale, California: U.S. Geological 
 

Survey Scientific Investigations Report 2005-5074, 130 p.
 
iii

Contents

Abstract .......................................................................................................................................................... 1
 

Introduction ................................................................................................................................................... 1
 

Acknowledgment ................................................................................................................................. 1
 

Description of Study Area .................................................................................................................. 2
 

Geohydrology ................................................................................................................................................ 2
 

Ground-Water Levels and Movement ....................................................................................................... 4
 

Water-Level Changes ................................................................................................................................... 4
 

References Cited .......................................................................................................................................... 6
 

Conversion Factors and Vertical Datum

Conversion Factors

Multiply By To obtain

inch (in.) 2.54 centimeter

foot (ft) 0.3048 meter

mile (mi) 1.609 kilometer

square miles (mi2

) 2.590 square kilometers

Vertical Datum

Sea level: In this report “sea level” refers to the National Geodetic Vertical Datum of 1929 (NGVD of 

1929) a geodetic datum derived from a general adjustment of the first-order level nets of both the United 

States and Canada, formerly called Sea Level Datum of 1929. 

Altitude, as used in this report, refers to distance above or below sea level.
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Generalized Water-Level Contours, September–October

2000 and March–April 2001, and Long-Term Water-Level

Changes, at the U.S. Air Force Plant 42 and Vicinity,

Palmdale, California

By Allen H. Christensen

Abstract

Historically, the U.S. Air Force Plant 42 has relied on 

ground water as the primary source of water owing, in large 

part, to the scarcity of surface water in the region. Groundwater withdrawal for municipal, industrial, and agricultural 

use has affected ground-water levels at U.S. Air Force Plant 

42, and vicinity. A study to document changes in groundwater gradients and to present historical water-level data was 

completed by the U.S. Geological Survey in cooperation with 

the U.S. Air Force. This report presents historical water-level 

data, hydrographs, and generalized seasonal water-level and 

water-level contours for September–October 2000 and March–

April 2001. The collection and interpretation of ground-water 

data helps local water districts, military bases, and private 

citizens gain a better understanding of the ground-water flow 

systems, and consequently water availability.

During September–October 2000 and March–April 2001 

the U.S. Geological Survey and other agencies made a total of 

102 water-level measurements, 46 during September-October 

2000 and 56 during March–April 2001. These data document 

recent conditions and, when compared with historical data, 

document changes in ground-water levels. Two water-level 

contour maps were drawn: the first depicts water-level conditions for September–October 2000 map and the second depicts 

water-level conditions for March–April 2001 map. In general, 

the water-level contour maps show water-level depressions 

formed as result of ground-water withdrawal. One hundred 

sixteen long-term hydrographs, using water-level data from 

1915 through 2000, were constructed to show water-level 

trends in the area. The hydrographs indicate that water-level 

decline occurred throughout the study area, with the greatest 

declines south of U.S. Air Force Plant 42.

Introduction

Historically, the U.S. Air Force Plant 42 (Plant 42) has 

relied on ground water as the primary source of water owing,in 

large part, to the scarcity of surface water in the region. Since 

1972, supplemental surface water has been imported from 

the California State Water Project to help meet the demand 

for water. Despite the importation of surface water, groundwater withdrawal for municipal, industrial, and agricultural 

use has resulted in ground-water-level declines at Plant 42 

and vicinity as large as 200 ft since the early 1900s. Localized 

heavy ground-water withdrawal has caused several groundwater depressions whose shape and magnitude can change 

with seasonal variation in ground-water withdrawal. To better 

understand the effects of ground-water withdrawal on groundwater levels and movement in the area, the U.S. Geological Survey (USGS), in cooperation with the U.S. Air Force, 

collected data from approximately 100 wells located within 

about 2 mi from Plant 42 and used these data to construct two 

generalized water-level-contour maps of the aquifer system 

underlying Plant 42 and the surrounding area. This report also 

presents hydrographs, water-quality data, and other related 

well information for selected wells at Plant 42 and vicinity 

via the USGS National Water Information System Web site 

(NWISWeb). The well identifiers plotted on plates 1 and 2 are 

linked to hydrographs contained in this document. Located 

at the bottom of each hydrograph is a link to the California 

NWISWeb home page for the well. For further information 

regarding California NWISWeb go to http://waterdata.usgs. 

gov/ca/nwis/ 

Acknowledgments

The author thanks the personnel of the U.S. Air Force, 

various defense contractors, Los Angeles Department of 

Airports, Palmdale Water District, and Los Angeles County 

Sanitation District, who provided water-level data and access 

to their wells for this study.
2 Generalized Water-Level Contours, Sept.–Oct. 2000 and March–April 2001, U.S. Air Force Plant 42, Palmdale, California

Description of Study Area

Plant 42 is located in the south-central part of Antelope 

Valley about 50 mi north of the city of Los Angeles (fig. 1). 

Antelope Valley is a closed topographic basin in the western 

part of the Mojave Desert. Plant 42 is about 1.5 mi northeast 

of Palmdale and 3 mi southeast of Lancaster in Los Angeles 

County, California (fig. 1). The study area shown on plates 

1 and 2 is about 55 mi2, and extends from just west of 10th 

Street West, eastward to 70th Street East (about 8 mi) and 

from Avenue K on the north to Avenue R in Palmdale on the 

south (about 7 mi). The study area was designed to include 

wells with water-level data that were within about 2 mi of the 

Plant 42 boundary and north of the two unnamed faults located 

southwest and southeast of Plant 42 (fig. 1). The climate in the 

Plant 42 area is semiarid to arid with an average annual 

precipitation of approximately 8 to10 in. per year, most of 

which occurs in the winter months (Duell, 1987). 

Geohydrology

The geohydrology of Antelope Valley and the Plant 42 

area has been described in detail by previous investigators. 

The general geologic structure of Antelope Valley was defined 

by Mabey (1960) using gravity surveys. The surficial geology 

of the valley was mapped and described by Hewett (1954) and 

Dibblee (1959, 1960, 1981). Additional studies on the groundwater resource in Antelope Valley and the Plant 42 area are 

documented in reports by Thayer (1946), Dutcher and Worts 

(1963), Koehler (1966), Carlson and others (1998), and 

Leighton and Phillips (2003). The geohydrology of the southcentral part of Antelope Valley is summarized in this report, 

but the reader is referred to the aforementioned reports for 

more a detailed geohydrologic description of Antelope Valley.

Antelope Valley was formed as a result of downfaulted 

basement/bedrock and sedimentary fill between the Garlock 

and the San Andreas Fault zones (fig. 1). The basement complex that underlies the sedimentary fill consists of pre-Cenozoic igneous and Tertiary sedimentary rocks (Hewett, 1954; 

Dibblee, 1963). The unconsolidated deposits of Pliocene to 

Holocene age that form the ground-water basin exceed 

5,000 ft in thickness in places (Dutcher and Worts, 1963). The 

unconsolidated units were described by Leighton and Phillips 

(2003) as lacustrine or alluvial and are divided hydrostratigraphically into the upper, middle, and lower aquifers 

(fig. 2). The unconfined upper aquifer consists of unconsolidated Pleistocene to Holocene alluvial deposits derived from 

local mountains. The upper aquifer yields water readily to 

wells and is the main production aquifer in the vicinity of 

Plant 42. The middle and lower aquifers consist of older and 

deeper units of the unconsolidated alluvium of Pliocene and 

Pleistocene age that become increasingly compacted and 

indurated at depth, and thus yield less water to wells with 

increasing depth (Dutcher and Worts, 1963). The approximate 

areal distribution of the lacustrine deposits extends northward from north of Palmdale, west past Quartz Hill, east to 

the subbasin boundary, and north to Rosamond and Rogers 

Lake where the unit crops out (fig. 1). The lacustrine deposits 

are as much as 300 ft thick and consist of beds of brown and 

blue clays. The brown clays contain some sandy deposits and 

in places yield some water to wells, whereas, the blue clays 

yield little or no water to wells and were considered non-water 

bearing by Dutcher and Worts (1963). In the vicinity of Plant 

42 the lacustrine deposits are deepest, with a maximum depth 

exceeding 800 ft, north of Palmdale (fig. 2). In the vicinity 

of Plant 42, the lacustrine deposits are generally reported in 

driller’s logs as brown clays below 400 ft and blue clays below 

approximately 650 to750 ft (Koehler, 1966).
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Figure 1. Location of faults, ground-water subbasins, line of geologic section, and approximate areal extent of lacustrine deposits in ground-water basin, California.
4 Generalized Water-Level Contours, Sept.–Oct. 2000 and March–April 2001, U.S. Air Force Plant 42, Palmdale, California

Ground-Water Levels and Movement

Water-level data were collected from 46 wells during 

fall (September–October) 2000 and from 56 wells in spring 

(March–April) 2001. These data were used in combination 

with historical data to define a generalized water-level surface 

and the direction of ground-water movement in the study area 

for September–October 2000 (plate 1) and for March–April 

2001 (plate 2). Water-level measurements from 46 wells were 

used to construct the fall water-level map: all 46 wells were 

known or were assumed to be perforated in the upper aquifer 

only or in combination with deeper aquifers; 16 wells were 

perforated in both the middle and upper aquifers; and, one 

well, on the basis of its 1,200 ft total depth, was assumed to 

be perforated in all three aquifers. Included in the 46 wells 

counted as perforated in the upper aquifer were four wells 

without information regarding perforated interval or total 

depth. Water-level measurements from 56 wells were used to 

construct the spring water-level map: all 56 wells were known 

or were assumed to be perforated in the upper aquifer only or 

in combination with deeper aquifers; 14 wells were perforated 

in both the middle and upper aquifers; and, two wells were 

perforated into the upper, middle, and lower aquifers. Of these 

two wells, one had known perforation information, the other 

was assumed to be perforated in all three aquifers on the basis 

of its 1,200 ft total depth. Included in the 56 wells counted as 

perforated in the upper aquifer were eight wells without information regarding perforated interval or total depth. Geologic 

data do not indicate the presence of a confining layer between 

the upper and middle aquifers; therefore, it is assumed that at 

a given location water levels in the middle and upper aquifers 

are similar. Most water-level measurements were made by the 

USGS with calibrated steel or electric tapes, and some water 

levels were reported by local water agencies. Water-level 

altitudes were calculated by subtracting the measured depth to 

water from the land-surface datum (determined from a leveling 

survey or estimated from topographic maps).

The values and locations of the water-level contours 

were estimated by linearly interpolating water-level data for 

the time period represented by each map. Where data were 

unavailable, the general contour shape and position were 

determined from previous local and regional water-table maps 

(Carlson and Phillips, 1998; Carlson and others, 1998; 

Christensen, 1999) and the contours are dashed to indicate 

uncertainty. For selected wells, a hydrograph of historical 

water-level data (1915 to 2001) is presented (wells shown on 

maps as blue circles on plates 1 and 2). Data used to construct 

each hydrograph can be obtained by using the link located at 

bottom of each hydrograph.

Ground-water flow is from areas of higher water-level 

altitude to areas of lower water-level altitude and is perpendicular (see arrows shown on plates 1 and 2) to lines of equal 

water-level altitude (contours) shown on the water-level maps 

(plates 1 and 2). In September–October 2000 and March–

April 2001, water-level depressions were located (1) south of 

Plant 42, (2) near the northern boundary of Plant 42, and (3) 

northwest of Plant 42, and were formed as a result of groundwater withdrawal (plates 1 and 2). Ground water flows toward 

these water-level depressions, with ground-water divides 

forming between the depressions. In addition, the water-level 

altitudes of these depressions were as much as 30 ft lower in 

September-October following high summer demands for 

ground water in the area (plates 1 and 2). 

The pattern of the water-level contours indicates that the 

unnamed faults in the study area are barriers to ground-water 

flow. For example, the water level is about 350 ft lower in well 

6N/11W-19F1 than in well 6N/11W-31A1 (plate 1) on 

opposite sides of the unnamed northwest-trending fault just 

north of Palmdale. The barrier effect of faults probably is 

caused by compaction and deformation of water-bearing 

deposits immediately adjacent to the faults and by cementation of the fault zone by mineral deposits from ground water 

(Londquist and Martin, 1991).

Water-Level Changes

Historical water-level data were used in conjunction 

with data collected during this study to determine long-term 

water-level changes in the study area by constructing waterlevel hydrographs for selected wells. These long-term hydrographs indicate a general water-level decline within the study 

area, with the greatest decline occurring from the late 1950s 

to the mid 1970s; however, some wells in the study area show 

a slight rise in water levels after the late 1970s. The greatest 

declines, in excess of 200 ft, were in wells located south of 

Plant 42 (wells 6N/11W-19E2 and 6N/11W-20G2). The water 

levels in hydrographs from wells located east of about 40th 

Street East also declined until the late 1970s when the general 

trend of decline reversed to a general rise in water levels (wells 

6N/11W-11M1 and 7N/11W-27Q1). A possible explanation 

for this general rise in water levels may be the increase in 

precipitation within the Little Rock Wash watershed during the 

late 1970s and/or a regional reduction in ground-water 

withdrawal that began in the mid-1960s (National Climatic 

Data Center, 2003; Leighton and Phillips, 2003).
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Figure 2. Generalized geologic section showing relation of lacustrine deposits to aquifers in the Lancaster subbasin in the Antelope 

Valley ground-water basin, California (modified from Londquist and others, 1993). Line of section is shown on figure 1.
6 Generalized Water-Level Contours, Sept.–Oct. 2000 and March–April 2001, U.S. Air Force Plant 42, Palmdale, California

References Cited

Bloyd, R.M., Jr., 1967, Water resources of the Antelope Valley-East Kern Water Agency area, California: U. S. Geological Survey Open-File Report, 73p.

Carlson, S.C., and Phillips, S.P., 1998, Water-level changes 

(1975–98) in Antelope Valley, California: U.S. Geological 

Survey Open-File Report 98-561, 2 plates.

Carlson, S.C. Leighton, D.A., Phillips, S.P., and Metzger L.F., 

1998 Regional water table (1996) and water table changes 

in Antelope Valley ground-water basin, California: U.S. 

Geological Survey Water-Resources Investigations Report 

98-4022, 2 plates.

Christensen, A.H., 1999, Generalized water-table and waterlevel data at the U.S. Air Force Plant 42 and vicinity, Palmdale, March–April 1997: U.S. Geological Survey WaterResources Investigations Report 99-4262, 1 plate.

Dibblee, T.W., Jr., 1959, Geological map of the Rosamond 

quadrangle, California: U.S. Geological Survey Open File 

Report, scale 1:62,500.

Dibblee, T.W., Jr., 1960, Geology of the Rogers Lake and 

Kramer quadrangles, U.S. Geological Survey, Bulletin 

1089-B, 73-139.

Dibblee, T.W., Jr., 1963, Geology of the Willow Springs and 

Rosamond quadrangles, California: U.S. Geological Survey 

Bulletin 1089-C, p. 141–253.

Dibblee, T.W., Jr., 1981, Regional structure of the Mojave 

Desert: in Howard, K.A. and others, eds., Tectonic framework of the Mojave and Sonoran Deserts, California and 

Arizona: U.S. Geological Survey Open-File Report 81-

0503, p. 26–28.

Duell, L. F., Jr., 1987, Geohydrology of Antelope Valley area, 

California, and design for a ground-water-quality monitoring network: U.S. Geological Survey Water-Resources 

Investigations Report, 72 p.

Durbin, T.J., 1978 Calibration of a mathematical model of the 

Antelope Valley ground-water basin, California: U.S. Geological Survey Water-Supply Paper 2046, 51p.

Dutcher, L.C., and Worts, G.F., Jr., 1963, Geology, hydrology 

and water supply of Edwards Air Force Base, Kern County, 

California: U.S. Geological Survey Open-File Report, 

225 p.

Hewett, D.F., 1954, General geology of the Mojave Desert 

region California, in Jahns, R.H. Baily, T.L., eds., Geology 

of southern California: Department of Mines and Geology 

Bulletin 170, Chapter 2, p. 2–20.

Koehler, J.H., 1966, Data on water wells in the eastern part 

of Antelope Valley Area, Los Angeles County, California: 

California Department of Water Resources Bulletin 91-12, 

17 p. 6 appendices.

Leighton, D.A. and Phillips, S.P., 2003, Simulation of groundwater flow and land subsidence in Antelope Valley groundwater basin, California: U. S. Geological Survey WaterResources Investigations Report, 89 p.

Londquist, C.J., and Martin, Peter, 1991, Geohydrology and 

ground-water-flow-simulation of the Surprise Spring Basin 

aquifer system, San Bernardino County, California: U.S. 

Geological Survey Water-Resources Investigations Report 

89-4099, 41 p. 

Londquist, C.J., Rewis, D.L., Galloway, D.L., and McCaffrey, 

W.F., 1993, Hydrogeology and land subsidence, Edwards 

Air Force Base, Antelope Valley, California, January 1989–

December 1991: U.S. Geological Survey Water-Resources 

Investigations Report 93-4114, 74 p.

Mabey, D.R., 1960, Gravity survey of the western Mojave 

Desert, California: U.S. Geological Survey Professional 

Paper 316-D, p. 51–73.

National Climatic Data Center, West 1, 2003, National Climatic Data Center, Federal Building, 151 Patton Avenue, 

Asheville, N.C. 28801-5001.

Sneed, M., and Galloway, D.L, 2000, Aquifer-system compaction and land subsidence: measurements, analysis and simulations—the Holly Site Edwards Air Force Base Antelope 

Valley, California: U.S. Geological Survey Water-Resources 

Investigation Report 00-4015, 65p

Thayer, W.W. 1946, Geologic features of Antelope Valley, 

California: Los Angeles County Flood Control District 

Report, 20 p.

Ward. A.W., Dixon, G.L., and Jachens, R.C., 1993, Geologic 

setting of the East Antelope Basin, with emphasis on fissuring of Rogers Lake, Edwards AFB, Mojave Desert, California: U.S. Geological Survey Open-File Report 93-263, 9 p.
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022, 2

012,2

2 2, 00

2 1, 90

, 2 081

,2

071

,2 061

,2 051

,2 041

,2

031

,2 021

011, 2

2 042,

052,2

6E1

27H1 27H7

26K1

27P8

30G1

31M1

1K1

6F1

6L1

6K2

6G2

31Q1

6H4

6H3

5G5

32Q2

32A2

29H1

28Q1 27Q1

3C1

4H1

9D1

3Q1

11C1

11M1

13D1 15A1 9Q1

16J1

8H1

18H1

12R1

7E1

7E3

7E2

12M2

14H1

23A1

9H1

19L1 19F1

31A1

20D1

20G2

21R1

2,137

2,121 2,092

2,122

2,158

2,103

2,121

2,112

2,132

2,126 2,128

2,124

2,056

2,142

2,145

2,125 2,110

2,142

2,158

2,141

2,155

2,139

2,154

2,139

2,147

2,158

2,181

2,180

2,169

2,197

2,201

2,278

2,222

2,239 2,221

2,233

2,233

2,125

2,071

2,012 2,026

2,055

2,098

2,241

2,378

2,138

2,135

27H2

27J5 27J4

25M1

26K3

26K2

34B1

34E1

34H1

4A1

33R1 34N1

35M1

9H2

9H3

15F1

11P1

12M1

13N1 14R1

13Q2

24C1

24C2

24F1

24A2

19E4

19E2

19E1 19E3

18P1

20N1

20G1 21E1

21C1

21N1 20P1

28E1

28N1 25N1

26J1

12M1

8R1 9P1

9F1 10D1

11D1

3E3 3E2

3E1

4C1

5A1

28P1

32P1 33N1

29N1

8E1

1J1

By Allen H. Christensen

2004

U.S.DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY

IN COOPERATION WITH THE

U.S. AIR FORCE

Los Angeles

 San

Francisco

San Diego

Well with historical data 

 and hydrograph data 

Well with September–October water-level 

 altitude and hydrograph data—

 Number in italics is water-level altitude, 

 in feet above NAVD88 

Water-level contour— Shows generalized

 water-level altitude, in feet above 

 NAVD88

 Dashed where approximately located.

 Hachures indicate depression. Contour

 interval is 10 feet

Direction of ground-water movement

Fault—Dashed where approximately 

 located

Conversion Factors

Multiply

Vertical Datum

By To obtain

2.590 square kilometer

2

D C B A

E F G H

LM JK

N P Q R

6 5 4 3 2 1

7 8 9 10 11 12

18 17 16 15 14 13

19 20 21 22 23 24

30 29 28 26 25

31 32 33 34 35 36

27

T7N

R13W R12W R11W

T6N

T5N

R11W

RANGE

SECTION 5

PIHSNWOT

T6N

Los

Angeles Co

EXPLANATION

Well-Numbering System 

Study

 Area

3E2

aP c cifi

cO e na

6N/11W-5G5

Wells are identified and numbered according to their location in the rectangular system 

for the subdivision of public lands. Identification consists of the township number, 

north or south; the range number, east or west; and the section number. Each section is 

divided into sixteen 40-acre tracts lettered consecutively (except I and O), beginning 

with "A" in the northeast corner of the section and progressing in a sinusoidal manner to 

"R" in the southeast corner. Within the 40-acre tract, wells are sequentially numbered in 

the order they are inventoried. The final letter refers to the base line and meridian (S).

All wells and springs in the study area are referenced to the San Bernardino base line 

and meridian (S). Numbers consist of 15 characters and follow the format 

006N011W05G005S. In this report, well numbers are abbreviated and written

6N/11W-5G5. Wells in the same township and range are referred to by only their section 

designation, 5G5. 

3C1

2,185

2,200

2,190

SCIENTIFIC INVESTIGATIONS REPORT 2005–5074

Christensen, A.H., 2004, Generalized water-level and long-term water-level changes, September-October 2000

and March-April 2001, at the U.S. Air Force Plant 42 and vicinity, Palmdale, California

Generalized water-level, September–October, 2000, at U.S. Air Force Plant 42—PLATE 1 OF 2

CALIFORNIA

Base from U.S. Geological Survey, 1:24,000 Digital Raster Graphic, 2001.

 GENERALIZED WATER-LEVEL MAP, SEPTEMBER-OCTOBER 2000, AT THE U.S. AIR FORCE PLANT 42

AND VICINITY, PALMDALE, CALIFORNIA

foot (ft) 0.3048 meter

inch (in) 2.54 centimeter

mile (mi) 1.609 kilometer

square mile (mi ) 259.0 hectare

17D1

Vertical coordinate information is referenced to the North American Vertical Datum of 

1988 (NAVD 88); horizontal coordinate information is referenced to the North American 

Datum of 1927 (NAD 27).
35 36

4 3 2

16 15 14 13 18

17

8 9

16 15 14

11

2

1

12

13

24

25

3 4

5

32 33 34 35 36

30 29 28 27 26 25

10 7

24

25 30

19 20

21 22

27 26

23

29 28 27 26

22 23

21

28

11 10

9

12

33 34

28 27 26 25

31

1

6

hsaWkcoR eltti L

keerC asogamA

tl uaF demannU

uaF lt

ma de nU n

Un deman Fa lu t

AVE P

AVE Q

AVE N

AVE N

AVE L

AVE K

AVE M

AVE L

TSAE TS ht03

TSAE TS ht02

TSAE TS ht01

WTS ht01

ywH

 arr eiS

TSAE TS ht04 TSAE TS ht04

TSAE TS ht05

Palmdale Blvd

TSEW TS ht01

TSAE TS ht07

AVE R

138

14

0 1 2 3 MILES

0 1 2 3 KILOMETERS

118°07'30" R 12 W R 11 W 118°02'30"

34°36'15"

T 6 N

T 7 N

34°38'45"

PALMDALE

RADNUOB Y OF

F IA ECRO LP TN R

A

24

BOUNDARY OF AIR FORCE PLANT 42

2, 031

041,2

,2 051

051,2

051,2

2,050

40,2 0

2,060

041 2,

031,2

021,2

2,1 01

001, 2

2

090,

080,2

070,2

070,2

0,2 80

09 ,2 0

051, 2

061,2

71,2 0

081,2

1,2 09

02,2 0

012,2

022,2

032,2

042,2

052,2

052,2

042,2

032

2,2

,2

20

2 2, 10

2 2, 00

2 1, 90

2 1,

80

071,2

061,2

031

041,2

051,2

,2

02

,2 1

2 1, 01

001,2

062, 2

072,2

2,2 08

,2 2 09

?

?

?

?

051,2

41,2 0

1,2 03

061, 2

?

?

?

?

2,129

2,126

2,128

2,131

2,157

2,145

2,170

2,159

2,149

2,172

2,163 2,160 2,162

2,177

2,185

2,208

2,209

2,195 2,195

2,236

2,170

2,150

2,121

2,149 2,140

2,151

2,148

2,145 2,139

2,141

2,141

2,141

2,239

2,142

2,127 2,130

2,125

2,113

2,120

2,109

2,052

2,073

2,049 2,044

2,063

2,114

2,111

2,119

2,094

2,134

2,223

2,229

2,243 2,277

2,242

2,379

6E1

6E2

27H1 27J6

27J5

26K3

30G1

31M1

1B1

1K2

1J2

6F1

6L1

6K2

6G2 6B1

31Q1

31K1

6H4

6H3

5G5

32Q2 32P1 32P4

29H1

28Q1 27Q1

3C1

3E3 4H1

9D1

3Q1

11C1

11M1

13D1 15A1 9Q1

8H1

8L1

17B1

8R1

12R1

7E1

7E3

7E2

12M3

14H1

23A1

13N1

19L1 19F1

31A1

20D1

20G2

21R1

27H2

27J4

25M1

26K2 26K1

34B1

34E1

34H1

4A1

33R1 34N1

35M1

9H2 9H1

9H3

15F1

11P1

12M1 12M2

14R1

13Q2

24C1

24C2

24F1

24A2

19E4

19E2

19E1 19E3

18P1

20N1

20G1 21E1

21C1

21N1 20P1

28E1

28N1 25N1

26J1

12M1

9P1

16J1

9F1 10D1

11D1

3E2

3E1

4C1

5A1

28P1

33N1

32A2

29N1

8E1

18H1

1J1

 GENERALIZED WATER-LEVEL, MARCH-APRIL 2001, AT THE U.S. AIR FORCE PLANT 42

AND VICINITY, PALMDALE, CALIFORNIA

By Allen H. Christensen

2004

U.S.DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY

IN COOPERATION WITH THE

U.S. AIR FORCE

Base from U.S. Geological Survey, 1:24,000 Digital Raster Graphic, 2001.

Los Angeles

 San

Francisco

San Diego

Well with historical data 

 and hydrograph data 

Well with September–October water-level 

 altitude and hydrograph data—

 Number in italics is water-level altitude, 

 in feet above NAVD88 

Water-level contour— Shows generalized

 water-level altitude, in feet above 

 NAVD88

 Dashed where approximately located.

 Hachures indicate depression. Contour

 interval is 10 feet

Direction of ground-water movement

Fault—Dashed where approximately 

 located

Conversion Factors

Multiply

Vertical Datum

By To obtain

2.590 square kilometer

2

D C B A

E F G H

LM JK

N P Q R

6 5 4 3 2 1

7 8 9 10 11 12

18 17 16 15 14 13

19 20 21 22 23 24

30 29 28 26 25

31 32 33 34 35 36

27

T7N

R13W R12W R11W

T6N

T5N

R11W

RANGE

SECTION 5

PIHSNWOT

T6N

Los

Angeles Co

EXPLANATION

Well-Numbering System 

Study

 Area

3E2

aP c cifi

cO e na

6N/11W-5G5

Wells are identified and numbered according to their location in the rectangular system 

for the subdivision of public lands. Identification consists of the township number, 

north or south; the range number, east or west; and the section number. Each section is 

divided into sixteen 40-acre tracts lettered consecutively (except I and O), beginning 

with "A" in the northeast corner of the section and progressing in a sinusoidal manner to 

"R" in the southeast corner. Within the 40-acre tract, wells are sequentially numbered in 

the order they are inventoried. The final letter refers to the base line and meridian (S).

All wells and springs in the study area are referenced to the San Bernardino base line 

and meridian (S). Numbers consist of 15 characters and follow the format 

006N011W05G005S. In this report, well numbers are abbreviated and written

6N/11W-5G5. Wells in the same township and range are referred to by only their section 

designation, 5G5. 

3C1

2,185

2,200

2,190

SCIENTIFIC INVESTIGATIONS REPORT 2005–5074

Christensen, A.H., 2004, Generalized water-level and long-term water-level changes, September-October 2000

and March-April 2001, at the U.S. Air Force Plant 42 and vicinity, Palmdale, California

Generalized water-level, September–October, 2000, at U.S. Air Force Plant 42—PLATE 2 OF 2

CALIFORNIA

foot (ft) 0.3048 meter

inch (in) 2.54 centimeter

mile (mi) 1.609 kilometer

square mile (mi ) 259.0 hectare

Vertical coordinate information is referenced to the North American Vertical Datum of 

1988 (NAVD 88); horizontal coordinate information is referenced to the North American 

Datum of 1927 (NAD 27).

1K1

17D1
HYDROGRAPHS
 
2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

006N011W03C001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER-LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

Fall, 2000 Spring, 2001 
006N011W03E001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W03E002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W03E003S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W03Q001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W04C001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W04H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W05A001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W05G005S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
2,375 

006N011W06E001S 

(Click here to view well location) 

Fall, 2000 Spring, 2001 

2,325 

2,275 

2,225

WATER

LEVEL ALTITUDE

2,175

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,125 

2,075 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
006N011W06F001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W06G002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W06H003S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W06H004S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W06L001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W07E001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W07E002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W07E003S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W08E001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W08H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W08R001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W09D001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W09F001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W09P001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W09Q001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W10D001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W11C001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W11D001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W11M001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W12M001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W13D001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W15A001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W16J001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W17D001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
006N011W18H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,900 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

1,950 

2,000 

2,050 

2,100 

2,150 

2,200 

Fall, 2000 Spring, 2001 
006N011W18P001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W19E001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W19E002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
006N011W19E003S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,125 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,175 

2,225 

2,275 

2,325 

2,375 

2,425 

Fall, 2000 Spring, 2001 
006N011W19E004S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
006N011W19F001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
006N011W19L001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,925 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

1,975 

2,025 

2,075 

2,125 

2,175 

2,225 

Fall, 2000 Spring, 2001 
006N011W20P001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W20D001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,900 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

1,950 

2,000 

2,050 

2,100 

2,150 

2,200 

Fall, 2000 Spring, 2001 
006N011W20G001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,350 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,400 

2,450 

2,500 

2,550 

2,600 

2,650 

Fall, 2000 Spring, 2001 
006N011W20G002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,950 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,000 

2,050 

2,100 

2,150 

2,200 

2,250 

2,300 

2,350 

Fall, 2000 Spring, 2001 
006N011W20N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,125 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,175 

2,225 

2,275 

2,325 

2,375 

2,425 

Fall, 2000 Spring, 2001 
006N011W21C001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W21E001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W21N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N011W21R001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N011W26J001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,300 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,350 

2,400 

2,450 

2,500 

2,550 

2,600 

Fall, 2000 Spring, 2001 
006N011W28E001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,300 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,350 

2,400 

2,450 

2,500 

2,550 

2,600 

Fall, 2000 Spring, 2001 
006N011W28N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,375 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,425 

2,475 

2,525 

2,575 

2,625 

2,675 

Fall, 2000 Spring, 2001 
006N011W31A001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,250 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,300 

2,350 

2,400 

2,450 

2,500 

2,550 

Fall, 2000 Spring, 2001 
006N012W01J001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W01K001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W04A001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W09H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W09H002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W09H003S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,000 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,050 

2,100 

2,150 

2,200 

2,250 

2,300 

Fall, 2000 Spring, 2001 
006N012W11P001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W12M001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W12M002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,000 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,050 

2,100 

2,150 

2,200 

2,250 

2,300 

Fall, 2000 Spring, 2001 
006N012W12R001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W13N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,950 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,000 

2,100 

2,050 

2,150 

2,250 

2,200 

2,300 

2,350 

Fall, 2000 Spring, 2001 
006N012W13Q002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N012W14H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
006N012W14R001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,950 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,050 

2,000 

2,150 

2,100 

2,200 

2,250 

2,300 

2,350 

Fall, 2000 Spring, 2001 
006N012W15F001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,100 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,150 

2,200 

2,250 

2,300 

2,350 

2,400 

Fall, 2000 Spring, 2001 
006N012W23A001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
006N012W24A002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W24C001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
006N012W24C002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
006N012W24F001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
006N012W25N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,250 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,300 

2,350 

2,400 

2,450 

2,500 

2,550 

Fall, 2000 Spring, 2001 
007N011W27Q001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N011W28P001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
007N011W28Q001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,000 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,050 

2,100 

2,150 

2,200 

2,250 

2,300 

Fall, 2000 Spring, 2001 
007N011W29H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
007N011W29N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N011W30G001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1,975 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

Fall, 2000 Spring, 2001 
007N011W31M001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N011W32A002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,000 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,050 

2,100 

2,150 

2,200 

2,250 

2,300 

Fall, 2000 Spring, 2001 
007N011W32P001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,050 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,100 

2,150 

2,200 

2,250 

2,300 

2,350 

Fall, 2000 Spring, 2001 
007N011W32Q002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,025 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,075 

2,125 

2,175 

2,225 

2,275 

2,325 

Fall, 2000 Spring, 2001 
007N011W33N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W25M001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W26K001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W26K002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W26K003S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W27H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W27H002S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
1,975 

2,025 

2,075 

2,125 

2,175 

2,225 

2,275 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

007N012W27H007S 

Fall, 2000 
007N012W27J004S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W27J005S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W33R001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W34B001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W34E001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,150 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,200 

2,250 

2,300 

2,350 

2,400 

2,450 

Fall, 2000 Spring, 2001 
007N012W34H001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,175 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,225 

2,275 

2,325 

2,375 

2,425 

2,475 

Fall, 2000 Spring, 2001 
007N012W34N001S 

(Click here to view well location) 

WATER-LEVEL DATE 

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
007N012W35M001S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ALTITUDE

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,075 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,125 

2,175 

2,225 

2,275 

2,325 

2,375 

Fall, 2000 Spring, 2001 
2,300 

006N012W01B001S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

006N012W01J002S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

006N012W01K002S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
007N012W27J006S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ELEVATION

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,025 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,075 

2,100 

2,150 

2,200 

2,250 

2,300 

Spring, 2001 
2,300 

006N011W06K002S 

(Click here to view well location) 

Fall, 2000 Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

006N011W06B001S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

006N011W06E002S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

006N011W08L001S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

006N011W17B001S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

006N012W12M003S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

007N011W31K001S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

007N011W31Q001S 

(Click here to view well location) 

Fall, 2000 Spring, 2001

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
2,300 

007N011W32P004S 

(Click here to view well location) 

Spring, 2001 

2,250 

2,200 

2,150

WATER

LEVEL ELEVATION

2,100

(Feet above sea level, NGVD 29;

click here to view datum information) 

2,075 

2,025 

1900 1910 

WATER-LEVEL DATE 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 
007N012W27P008S 

(Click here to view well location) 

WATER-LEVEL DATE 

WATER

LEVEL ELEVATION

(Feet above sea level, NGVD 29;

click here to view datum information) 

(Water-level data presented on this graph have been filtered to remove anomalous data; 

click here to view the complete data record) 

2,025 

1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 

2,075 

2,100 

2,150 

2,200 

2,250 

2,300 

Fall, 2000