GROUND-WATER LEVELS

NETWORK SITES--Continued

GRANT COUNTY

463000101575101. Local number, 135-090-23BBB1.

LOCATION.--Lat 46×30'00", long 101×57'51", Hydrologic Unit 10130203. Owner: North Dakota State Water Commission.

AQUIFER.--Fox Hills.

WELL CHARACTERISTICS.--Drilled observation well, depth 1,080 ft, cased with 1,029 ft of 2-in diameter steel pipe, No. 12 slot

screen set 1,029 to 1,047 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,362 ft. Measuring point: Top of casing 3.00 ft above land-surface datum.

PERIOD OF RECORD.--June 1973 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 270.55 ft below land-surface datum, June 27, 1973, and August 24, 1973; lowest
water level, 277.82 ft below land-surface datum, March 7, 2003.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 06 277.24 MAR 26 277.22 APR 15 277.14 MAY 28 277.15 JUL 15 277.56 AUG 31 277.64

NOV 21 277.18

WATER YEAR 2004 HIGHEST 277.14 APR 15, 2004 LOWEST 277.64 AUG 31, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

GRANT COUNTY--Continued

463000101575102. Local number, 135-090-23BBB2.

LOCATION.--Lat 46×30'00", long 101×57'51", Hydrologic Unit 10130203. Owner: North Dakota State Water Commission.

AQUIFER.--Tongue River.

WELL CHARACTERISTICS.--Drilled observation well, depth 300 ft, cased with 277 ft of 1.25-in diameter plastic pipe, screen set

277 to 283 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,366 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

PERIOD OF RECORD.--June 1973 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 150.74 ft below land-surface datum, April 15, 2004; lowest water level,
154.60 ft below land-surface datum, July 25, 1973.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 06 150.96 MAR 26 150.80 APR 15 150.74 MAY 28 150.75 JUL 15 151.07 AUG 31 151.16

NOV 21 151.02

WATER YEAR 2004 HIGHEST 150.74 APR 15, 2004 LOWEST 151.16 AUG 31, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

GRIGGS COUNTY

472412098261201. Local number, 145-061-04DAD1.

LOCATION.--Lat 47×24'12", long 98×26'12", Hydrologic Unit 09020203. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 160 ft, cased with 102 ft of 6-in diameter plastic pipe, No. 30 slot

screen set 102 to 107 ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder March 1974 to current year. Only intermittent low and EOM water levels, obtained from strip-
chart recorders, are available from the District office for December 1970 to March 1974. From March 1974 to current year, daily
maximum and minimum recorded water levels also are available.

DATUM.--Altitude of land-surface datum is 1,470 ft. Measuring point: Top of casing 1.60 ft above land-surface datum.

PERIOD OF RECORD.--December 1970 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, -1.17 ft below land-surface datum, September 1, 2, 7, and 8, 2001; lowest
water level, 33.90 ft below land-surface datum, August 14, 1980.

DEPTH TO WATER LEVEL, FEET BELOW LAND SURFACE, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

DAILY MAXIMUM VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

1 3.85 3.85 3.95 3.95 --- 4.09 4.07 3.86 2.90 2.17 3.11 2.34

2 3.85 3.85 3.95 3.94 --- 4.09 4.10 3.86 2.95 2.15 3.11 2.30

3 3.81 3.87 3.94 3.97 --- 4.09 4.10 3.86 2.96 2.07 2.87 2.27

4 3.80 3.86 3.94 3.98 --- 4.09 4.10 3.83 2.95 2.06 2.69 2.26

5 3.80 3.85 3.96 3.98 --- 4.09 4.07 3.81 2.90 2.05 2.58 2.26

6 3.80 3.85 3.96 3.98 --- 4.09 4.06 3.84 2.89 2.02 2.48 2.12

7 3.80 3.90 3.89 3.98 --- 4.09 4.06 3.84 2.81 1.98 2.35 2.14

8 3.79 3.90 3.91 3.99 --- 4.11 4.07 3.79 2.83 1.97 2.32 2.14

9 3.79 3.89 3.92 3.99 --- 4.11 4.09 3.77 2.83 1.90 2.26 2.13

10 3.78 3.87 3.93 3.99 --- 4.08 4.09 3.76 2.81 1.89 2.25 2.09

11 3.79 3.82 3.93 3.99 --- 4.08 4.09 3.76 2.64 1.87 2.23 2.09

12 3.79 3.86 3.93 3.99 --- 4.08 4.08 3.58 2.59 1.87 2.19 2.09

13 3.79 3.87 3.93 3.99 --- 4.10 4.07 3.60 2.59 1.80 2.22 2.04

14 3.80 3.85 3.90 3.94 --- 4.12 4.04 3.60 2.56 1.80 2.43 2.04

15 3.81 3.83 3.92 3.94 --- 4.12 4.02 3.60 2.55 1.80 2.42 2.04

16 3.83 3.83 3.93 3.95 --- 4.12 4.01 3.56 2.51 1.78 2.36 2.02

17 3.83 3.82 3.93 3.97 --- 4.12 4.01 3.56 2.51 1.78 2.62 2.01

18 3.81 3.80 3.95 4.00 --- 4.12 4.00 3.56 2.49 1.77 2.88 2.00

19 3.81 3.82 3.97 4.00 --- 4.14 3.97 3.55 2.49 1.74 2.86 1.95

20 3.82 3.86 3.97 3.99 --- 4.17 3.97 3.56 2.41 1.74 2.73 1.92

21 3.82 3.87 3.93 3.97 --- 4.18 3.93 3.55 2.35 1.72 2.64 1.91

22 3.83 3.87 3.97 3.97 --- 4.20 3.95 3.48 2.34 1.73 2.80 1.91

23 3.83 3.87 3.97 3.96 --- 4.20 3.96 3.44 2.31 1.73 2.93 1.91

24 3.84 3.86 3.97 3.95 4.09 4.19 3.96 3.44 2.29 1.73 2.81 1.78

25 3.88 3.82 3.97 --- 4.09 4.19 3.90 3.38 2.28 1.75 2.62 1.78

26 3.88 3.84 3.96 --- 4.09 4.21 3.93 3.37 2.26 1.75 2.45 1.78

27 3.84 3.90 3.96 --- 4.09 4.20 3.92 3.32 2.25 1.74 2.45 1.80

28 3.78 3.91 3.92 --- 4.09 3.91 3.85 3.34 2.21 1.70 2.44 1.80

29 3.79 3.85 3.93 --- 4.09 4.01 3.88 3.33 2.20 2.00 2.39 1.80

30 3.82 3.91 3.93 --- --- 4.06 3.87 3.21 2.17 2.37 2.35 1.73

31 3.85 --- 3.95 --- --- 4.07 --- 2.93 --- 2.78 2.34 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

GRIGGS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

GRIGGS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

GRIGGS COUNTY--Continued

472624098013101. Local number, 146-058-26BBDB.

LOCATION.--Lat 47×26'24", long 98×01'31", Hydrologic Unit 09020203. Owner: Corps of Engineers.

AQUIFER.--McVille.

WELL CHARACTERISTICS.--Augered observation well, depth 27 ft, cased from -2.6 to 19.3 ft with 2-in diameter plastic pipe, screen
set 19.3 to 24.3 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,305.24 ft. Measuring point: Top of casing 2.60 ft above land-surface datum.

PERIOD OF RECORD.--December 1999 to current year.

REMARKS.--Replaces well 146-058-26CBC.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 10.80 ft below land-surface datum, July 21, 2004; lowest water level,
19.55 ft below land-surface datum, February 7, 2003.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 05 15.68 JAN 14 18.21 FEB 23 14.87 MAR 22 18.77 JUL 21 10.80 AUG 31 12.79

NOV 07 16.80

WATER YEAR 2004 HIGHEST 10.80 JUL 21, 2004 LOWEST 18.77 MAR 22, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

GRIGGS COUNTY--Continued

473425098232901. Local number, 147-061-01CCC.

LOCATION.--Lat 47×34'25", long 98×23'29", Hydrologic Unit 09020203. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 340 ft, cased with 237 ft of 1.25-in diameter plastic pipe, No. 25 slot

screen set 237 to 240 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,520.61 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

PERIOD OF RECORD.--September 1971 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 23.39 ft below land-surface datum, July 19, 1999; lowest water level, 96.10 ft
below land-surface datum, August 12, 1975.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 15 33.85 DEC 11 27.43 JUN 24 30.23 JUL 27 68.00 AUG 24 50.60 SEP 22 31.76

NOV 20 28.43 MAY 13 25.16

WATER YEAR 2004 HIGHEST 25.16 MAY 13, 2004 LOWEST 68.00 JUL 27, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

GRIGGS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

HETTINGER COUNTY

463153102521001. Local number, 135-097-04DCA.

LOCATION.--Lat 46×31'53", long 102×52'10", Hydrologic Unit 10130204. Owner: North Dakota State Water Commission.

AQUIFER.--Fox Hills.

WELL CHARACTERISTICS.--Drilled observation well, depth 1,360 ft, cased with 1,320 ft of 4-in diameter steel pipe, open ended.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,567 ft. Measuring point: Top of casing 0.80 ft above land-surface datum.

PERIOD OF RECORD.--September 1968 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 142.39 ft below land-surface datum, June 4, 1979; lowest water level, 146.25 ft
below land-surface datum, August 26, 2003.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 07 145.99 NOV 20 145.84 MAR 25 146.08 APR 15 145.93 JUN 09 146.22 AUG 26 146.22

WATER YEAR 2004 HIGHEST 145.84 NOV 20, 2003 LOWEST 146.22 JUN 09, 2004 AUG 26, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

HETTINGER COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

KIDDER COUNTY

470638099324301. Local number, 142-070-16DDD.

LOCATION.--Lat 47×06'38", long 99×32'43", Hydrologic Unit 10130103. Owner: North Dakota State Water Commission.

AQUIFER.--Long Lake.

WELL CHARACTERISTICS.--Drilled observation well, depth 84 ft, cased with 70 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 70 to 73 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,809.29 ft. Measuring point: Top of casing 1.90 ft above land-surface datum.

PERIOD OF RECORD.--November 1965 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 14.94 ft below land-surface datum, May 23, 1997; lowest water level, 26.18 ft
below land-surface datum, August 5, 2002.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

NOV 14 21.38 JUN 06 20.85 JUL 11 21.72 AUG 08 22.95 SEP 12 21.34

WATER YEAR 2004 HIGHEST 20.85 JUN 06, 2004 LOWEST 22.95 AUG 08, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

KIDDER COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

LaMOURE COUNTY

461958098132901. Local number, 133-060-16DAA.

LOCATION.--Lat 46×19'58", long 98×13'29", Hydrologic Unit 10160003. Owner: North Dakota State Water Commission.

AQUIFER.--LaMoure.

WELL CHARACTERISTICS.--Drilled observation well, depth 110 ft, cased with 58 ft of 6-in diameter plastic pipe, No. 25 slot

screen set 58 to 63 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape October 2000 to current year. Water-level recorder November 1975 to October 2000,
daily maximum and minimum recorded water levels also are available.

DATUM.--Altitude of land-surface datum is 1,320 ft. Measuring point: Top of casing 1.00 ft above land-surface datum.

PERIOD OF RECORD.--November 1975 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 13.63 ft below land-surface datum, May 19, 1999; lowest water level, 26.84 ft
below land-surface datum, August 20, 1990.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 22 19.33 DEC 10 19.06 JUN 23 18.40 JUL 28 19.45 AUG 26 20.30 SEP 22 20.03

NOV 19 19.14 MAY 19 18.83

WATER YEAR 2004 HIGHEST 18.40 JUN 23, 2004 LOWEST 20.30 AUG 26, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

LaMOURE COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

LaMOURE COUNTY--Continued

462447098432602. Local number, 134-064-22BBB2.

LOCATION.--Lat 46×24'47", long 98×43'26", Hydrologic Unit 10160004. Owner: North Dakota State Water Commission.

AQUIFER.--Edgeley.

WELL CHARACTERISTICS.--Drilled observation well, depth 40 ft, cased with 27 ft of 4-in diameter plastic pipe, screen set 27 to
32 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape January 1998 to current year. Water-level recorder January 1975 to January 1998,
daily maximum and minimum recorded water levels also are available.

DATUM.--Altitude of land-surface datum is 1,550 ft. Measuring point: Top of casing 2.40 ft above land-surface datum.

PERIOD OF RECORD.--January 1975 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 7.86 ft below land-surface datum, June 2, 1999; lowest water level, 19.44 ft
below land-surface datum, October 11, 1992.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

NOV 19 11.70 MAY 20 11.28 JUN 07 11.08 AUG 26 11.57

WATER YEAR 2004 HIGHEST 11.08 JUN 07, 2004 LOWEST 11.70 NOV 19, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

LaMOURE COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

LOGAN COUNTY

463417099271002. Local number, 136-070-26BBB2.

LOCATION.--Lat 46×34'17", long 99×27'10", Hydrologic Unit 10130103. Owner: North Dakota State Water Commission.

AQUIFER.--Streeter.

WELL CHARACTERISTICS.--Drilled observation well, depth 62 ft, cased with 39 ft of 6-in diameter plastic pipe, No. 25 slot screen

set 39 to 44 ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder November 1978 to current year, daily maximum and minimum recorded water levels also are

available.

DATUM.--Altitude of land-surface datum is 1,909.8 ft. Measuring point: Top of casing 1.80 ft above land-surface datum.

PERIOD OF RECORD.--November 1978 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 16.97 ft below land-surface datum, July 15, 1979; lowest water level, 27.85 ft
below land-surface datum, August 29-31, 1992.

DEPTH TO WATER LEVEL, FEET BELOW LAND SURFACE, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

DAILY MAXIMUM VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

1 23.08 --- --- --- --- --- 22.22 22.16 22.90 22.51 22.77 23.10

2 23.06 --- --- --- --- --- 22.22 22.17 22.91 22.52 22.81 23.11

3 23.01 --- --- --- --- --- 22.22 22.16 22.90 22.56 22.86 23.11

4 23.00 --- --- --- --- --- 22.21 22.18 22.88 22.58 22.88 23.12

5 22.98 --- --- --- --- --- 22.17 22.19 22.83 22.59 22.90 23.12

6 22.97 --- --- --- --- --- 22.17 22.27 22.82 22.61 22.93 23.14

7 22.95 --- --- --- --- --- 22.16 22.30 22.79 22.62 22.96 23.15

8 22.93 --- --- --- --- --- 22.16 22.34 22.81 22.63 22.96 23.15

9 --- --- --- --- --- --- 22.17 22.37 22.80 22.77 23.00 23.14

10 --- --- --- --- --- --- 22.17 22.44 22.76 22.75 23.01 23.12

11 --- --- --- --- --- --- 22.17 22.46 22.71 22.70 23.02 23.12

12 --- --- --- --- --- --- 22.16 22.50 22.69 22.68 23.07 23.11

13 --- --- --- --- --- --- 22.15 22.52 22.68 22.65 23.08 23.06

14 --- --- --- --- --- --- 22.13 22.52 22.66 22.64 23.10 23.06

15 --- --- --- --- --- --- 22.12 22.53 22.63 22.61 23.12 23.06

16 --- --- --- --- --- --- 22.15 22.56 22.62 22.60 23.13 23.05

17 --- --- --- --- --- --- 22.15 22.61 22.59 22.60 23.14 23.03

18 --- --- --- --- --- --- 22.13 22.63 22.56 22.57 23.16 23.02

19 --- --- --- --- --- --- 22.15 22.67 22.54 22.56 23.09 22.97

20 --- --- --- --- --- --- 22.13 22.71 22.49 22.56 23.09 22.97

21 --- --- --- --- --- --- 22.13 22.72 22.45 22.55 23.09 23.03

22 --- --- --- --- --- --- 22.14 22.75 22.45 22.57 23.06 23.03

23 --- --- --- --- --- --- 22.15 22.78 22.45 22.58 23.06 23.03

24 --- --- --- --- --- 22.30 22.15 22.79 22.46 22.59 23.06 23.03

25 --- --- --- --- --- 22.29 22.10 22.82 22.47 22.60 23.06 23.03

26 --- --- --- --- --- 22.29 22.12 22.82 22.47 22.60 23.06 23.00

27 --- --- --- --- --- 22.26 22.11 22.85 22.50 22.62 23.08 22.97

28 --- --- --- --- --- 22.25 22.13 22.87 22.51 22.63 23.08 22.97

29 --- --- --- --- --- 22.25 22.15 22.90 22.51 22.64 23.08 22.96

30 --- --- --- --- --- 22.25 22.15 22.90 22.49 22.70 23.09 22.90

31 --- --- --- --- --- 22.24 --- 22.89 --- 22.74 23.10 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

LOGAN COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

LOGAN COUNTY--Continued

463240099483801. Local number, 136-073-35DDD1.

LOCATION.--Lat 46×32'40", long 99×48'38", Hydrologic Unit 10130103. Owner: North Dakota State Water Commission.

AQUIFER.--Napoleon.

WELL CHARACTERISTICS.--Drilled observation well, depth 282 ft, cased with 168 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 168 to 171 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,970 ft. Measuring point: Top of casing 1.80 ft above land-surface datum.

PERIOD OF RECORD.--April 1979 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 27.38 ft below land-surface datum, September 29, 1999; lowest water level,
34.62 ft below land-surface datum, November 18, 1992.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 09 29.69 MAR 23 29.60 JUN 08 29.25 JUL 27 29.80 AUG 18 30.07 SEP 22 30.23

NOV 20 29.68 MAY 03 29.35

WATER YEAR 2004 HIGHEST 29.25 JUN 08, 2004 LOWEST 30.23 SEP 22, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

LOGAN COUNTY--Continued

463240099483802. Local number, 136-073-35DDD2.

LOCATION.--Lat 46×32'40", long 99×48'38", Hydrologic Unit 10130103. Owner: North Dakota State Water Commission.

AQUIFER.--Napoleon.

WELL CHARACTERISTICS.--Drilled observation well, depth 131 ft, cased with 118 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 118 to 121 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,970 ft. Measuring point: Top of casing 1.90 ft above land-surface datum.

PERIOD OF RECORD.--April 1979 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 27.56 ft below land-surface datum, July 6, 2001; lowest water level, 37.07 ft
below land-surface datum, September 23, 1993.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 09 29.66 MAR 23 29.38 JUN 08 29.08 JUL 27 32.35 AUG 18 32.74 SEP 22 30.10

NOV 20 29.60 MAY 03 29.23

WATER YEAR 2004 HIGHEST 29.08 JUN 08, 2004 LOWEST 32.74 AUG 18, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY

480913100372501. Local number, 154-077-18CCC.

LOCATION.--Lat 48×09'13", long 100×37'25", Hydrologic Unit 09010003. Owner: North Dakota State Water Commission.

AQUIFER.--New Rockford.

WELL CHARACTERISTICS.--Drilled observation well, depth 260 ft, cased with 173 ft of 4-in diameter plastic pipe, No. 18 slot

screen set 173 to 178 ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder May 1976 to current year, daily maximum and minimum recorded water levels also are
available.

DATUM.--Altitude of land-surface datum is 1,576.07 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

PERIOD OF RECORD.--May 1976 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 52.96 ft below land-surface datum, May 25, 1976; lowest water level, 75.43 ft
below land-surface datum, August 1, 1994.

DEPTH TO WATER LEVEL, FEET BELOW LAND SURFACE, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

DAILY MAXIMUM VALUES

DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP

1 59.52 58.70 57.92 57.44 57.15 57.02 56.81 56.76 56.56 64.89 71.92 63.02

2 59.43 58.51 57.92 57.37 57.17 57.05 56.92 56.75 56.66 65.11 71.92 62.69

3 59.29 58.51 57.80 57.48 57.17 57.05 56.92 56.69 56.66 64.13 71.92 63.77

4 59.36 58.46 57.79 57.48 57.17 57.02 56.89 56.66 56.61 62.27 71.92 63.77

5 59.36 58.37 57.85 57.48 57.16 56.91 56.69 56.79 56.51 61.17 71.92 62.88

6 59.34 58.33 57.78 57.38 57.17 56.91 56.74 57.08 56.51 61.15 71.92 62.15

7 59.24 58.37 57.57 57.33 57.17 57.05 56.75 57.08 56.46 61.70 71.92 62.90

8 59.13 58.37 57.70 57.36 57.02 57.05 56.76 56.99 56.68 62.21 71.92 62.77

9 59.07 58.26 57.73 57.37 57.10 57.06 56.82 56.95 56.88 62.24 71.92 62.58

10 59.55 58.15 57.73 57.37 57.11 56.96 56.82 57.00 57.16 63.04 71.92 63.51

11 59.60 58.03 57.69 57.25 57.21 57.07 56.81 57.00 57.16 64.03 71.92 63.63

12 59.39 58.20 57.60 57.35 57.22 57.06 56.78 56.90 56.84 64.02 71.92 63.63

13 59.55 58.21 57.56 57.37 57.07 56.89 56.69 56.94 56.75 62.65 71.92 62.97

14 59.76 58.11 57.48 57.29 57.15 57.01 56.69 56.94 56.71 63.09 71.92 62.01

15 59.79 58.01 57.62 57.29 57.15 57.01 56.69 56.85 56.66 64.60 71.92 61.59

16 59.66 58.01 57.65 57.25 57.09 56.97 56.73 56.74 57.49 64.59 71.92 61.63

17 59.63 57.96 57.62 57.35 57.09 56.87 56.75 56.74 59.47 64.03 71.92 61.45

18 59.86 57.93 57.64 57.37 57.04 56.94 56.73 56.73 59.48 63.62 71.92 61.03

19 59.87 57.96 57.64 57.37 57.00 56.93 56.70 56.70 59.25 62.45 67.97 60.70

20 59.62 58.02 57.55 57.25 57.01 57.17 56.67 56.90 58.85 63.19 68.11 60.48

21 60.22 58.07 57.49 57.29 57.02 57.18 56.67 56.90 57.99 65.20 67.73 60.45

22 60.88 58.07 57.57 57.29 57.06 57.05 56.77 56.81 57.64 66.74 66.90 61.21

23 60.91 58.04 57.57 57.20 57.09 56.90 56.76 56.76 57.94 67.98 65.62 61.03

24 60.39 57.97 57.53 57.24 57.09 56.78 56.76 56.71 59.09 68.63 64.55 60.52

25 59.70 57.70 57.43 57.19 57.05 56.89 56.61 56.64 60.32 68.11 63.78 60.36

26 59.46 57.79 57.41 57.21 56.98 56.94 56.69 56.62 60.65 67.23 63.10 60.14

27 59.07 57.98 57.41 57.22 56.97 56.89 56.67 56.60 61.02 69.96 62.70 60.02

28 58.75 58.00 57.41 57.25 57.05 56.82 56.56 56.60 61.29 71.18 62.56 60.02

29 58.75 57.79 57.45 57.23 57.05 56.93 56.73 56.60 62.17 71.17 63.48 59.81

30 58.68 57.85 57.45 57.22 --- 56.93 56.76 56.52 62.67 71.67 63.90 59.63

31 58.70 --- 57.44 57.10 --- 56.93 --- 56.45 --- 71.92 63.69 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

480725100373303. Local number, 154-078-36AAA3.

LOCATION.--Lat 48×07'25", long 100×37'33", Hydrologic Unit 09010003. Owner: North Dakota State Water Commission.

AQUIFER.--Fox Hills.

WELL CHARACTERISTICS.--Drilled observation well, depth 400 ft, cased with 282 ft of 2-in plastic pipe, No. 18 slot screen

set 282 to 292 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,546.96 ft. Measuring point: Top of casing 1.79 ft above land-surface datum.

PERIOD OF RECORD.--October 2001 to present.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 27.33 ft below land-surface datum, May 22,2002; lowest water level, 28.70 ft
below land-surface datum, August 20, 2003.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 08 28.59 DEC 05 28.40 MAY 18 28.21 JUN 16 27.95 JUL 22 28.50 SEP 15 28.33

OCT 15 28.38 MAR 23 28.42 MAY 27 28.34 JUL 21 28.10 AUG 18 28.34 SEP 16 28.65

NOV 12 28.29 APR 21 28.47 JUN 15 28.19

WATER YEAR 2004 HIGHEST 27.95 JUN 16, 2004 LOWEST 28.65 SEP 16, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

480725100373304. Local number, 154-078-36AAA4.

LOCATION.--Lat 48×07'25", long 100×37'33", Hydrologic Unit 09010003. Owner: North Dakota State Water Commission.

AQUIFER.--Hell Creek.

WELL CHARACTERISTICS.--Drilled observation well, depth 230 ft, cased with 211 ft of 2-in plastic pipe, No. 18 slot screen

set 211 to 221 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,547.29 ft. Measuring point: Top of casing 1.88 ft above land-surface datum.

PERIOD OF RECORD.--October 2001 to present.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 22.36 ft below land-surface datum, May 22, 2002; lowest water level, 24.04 ft
below land-surface datum, October 8, 2003 and September 16, 2004.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 08 24.04 DEC 05 23.82 MAY 18 23.80 JUN 16 23.73 JUL 22 23.94 SEP 15 23.78

OCT 15 23.81 MAR 23 24.02 MAY 27 24.01 JUL 21 23.72 AUG 18 23.75 SEP 16 24.04

NOV 12 23.82 APR 21 24.02 JUN 15 23.97

WATER YEAR 2004 HIGHEST 23.72 JUL 21, 2004 LOWEST 24.04 OCT 08, 2003 SEP 16, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

481948100305901. Local number, 156-077-13CCB1.

LOCATION.--Lat 48×19'48", long 100×30'59", Hydrologic Unit 09010003. Owner: North Dakota State Water Commission.

AQUIFER.--Denbigh.

WELL CHARACTERISTICS.--Drilled observation well, depth 160 ft, cased with 123 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 123 to 126 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,475 ft. Measuring point: Top of casing 1.70 ft above land-surface datum.

PERIOD OF RECORD.--July 1975 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 1.32 ft below land-surface datum, April 11 and July 17, 2001; lowest water
level, 4.68 ft below land-surface datum, November 4, 1975.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

MAR 23 2.19 MAY 21 2.16 JUL 22 2.16 AUG 18 2.18 SEP 15 2.19 SEP 16 2.10

APR 21 2.21 JUN 15 1.98

WATER YEAR 2004 HIGHEST 1.98 JUN 15, 2004 LOWEST 2.21 APR 21, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

481948100305902. Local number, 156-077-13CCB2.

LOCATION.--Lat 48×19'48", long 100×30'59", Hydrologic Unit 09010003. Owner: North Dakota State Water Commission.

AQUIFER.--Denbigh.

WELL CHARACTERISTICS.--Drilled observation well, depth 60 ft, cased with 53 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 53 to 56 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,475 ft. Measuring point: Top of casing 1.80 ft above land-surface datum.

PERIOD OF RECORD.--July 1975 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 0.05 ft below land-surface datum, June 1, 1999; lowest water level, 7.16 ft
below land-surface datum, November 10, 1991.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

MAR 23 4.76 MAY 21 2.32 JUL 22 2.14 AUG 18 3.18 SEP 15 3.16 SEP 16 3.12

APR 21 2.99 JUN 15 0.29

WATER YEAR 2004 HIGHEST 0.29 JUN 15, 2004 LOWEST 4.76 MAR 23, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McHENRY COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

McINTOSH COUNTY

455807099450701. Local number, 129-072-30BBB.

LOCATION.--Lat 45×58'07", long 99×45'07", Hydrologic Unit 10130102. Owner: North Dakota State Water Commission.

AQUIFER.--Zeeland.

WELL CHARACTERISTICS.--Drilled observation well, depth 160 ft, cased with 123 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 123 to 126 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,968.3 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

PERIOD OF RECORD.--August 1976 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 4.72 ft below land-surface datum, July 6, 2001; lowest water level, 13.50 ft
below land-surface datum, July 29, 1980, and July 27, 1982.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 10 5.41 MAR 23 5.15 JUN 08 5.11 JUL 27 5.47 AUG 18 5.48 SEP 22 5.31

NOV 20 5.31 MAY 03 5.11

WATER YEAR 2004 HIGHEST 5.11 MAY 03, 2004 JUN 08, 2004 LOWEST 5.47 JUL 27, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McINTOSH COUNTY--Continued

460411099200701. Local number, 130-069-21BBB1.

LOCATION.--Lat 46×04'11", long 99×20'07", Hydrologic Unit 10130106. Owner: North Dakota State Water Commission.

AQUIFER.--Spring Creek.

WELL CHARACTERISTICS.--Drilled observation well, depth 223 ft, cased with 177 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 177 to 180 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 2,033 ft. Measuring point: Top of casing 2.20 ft above land-surface datum.

PERIOD OF RECORD.--October 1977 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 47.31 ft below land-surface datum, July 6, 2001; lowest water level, 54.65 ft
below land-surface datum, September 20, 1992.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 10 48.56 MAR 23 48.74 JUN 08 48.77 JUL 27 49.00 AUG 18 49.05 SEP 22 49.10

NOV 20 48.59 MAY 03 48.79

WATER YEAR 2004 HIGHEST 48.56 OCT 10, 2003 LOWEST 49.10 SEP 22, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McINTOSH COUNTY--Continued

460411099200702. Local number, 130-069-21BBB2.

LOCATION.--Lat 46×04'11", long 99×20'07", Hydrologic Unit 10130106. Owner: North Dakota State Water Commission.

AQUIFER.--Spring Creek.

WELL CHARACTERISTICS.--Drilled observation well, depth 102 ft, cased with 97 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 97 to 100 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 2,033 ft. Measuring point: Top of casing 2.40 ft above land-surface datum.

PERIOD OF RECORD.--October 1977 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 46.64 ft below land-surface datum, July 6, 2001; lowest water level, 53.96 ft
below land-surface datum, September 20, 1992.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 10 47.89 MAY 23 48.06 JUN 08 48.10 JUL 27 48.28 AUG 18 48.37 SEP 22 48.48

NOV 20 47.92 MAY 03 48.11

WATER YEAR 2004 HIGHEST 47.89 OCT 10, 2003 LOWEST 48.48 SEP 22, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McINTOSH COUNTY--Continued

461446099312801. Local number, 132-071-14DDD1.

LOCATION.--Lat 46×14'46", long 99×31'28", Hydrologic Unit 10130104. Owner: North Dakota State Water Commission.

AQUIFER.--Wishek.

WELL CHARACTERISTICS.--Drilled observation well, depth 182 ft, cased with 118 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 118 to 121 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 2,028 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

PERIOD OF RECORD.--October 1977 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 13.26 ft below land-surface datum, September 23, 1999; lowest water level,
48.60 ft below land-surface datum, August 22, 2003.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 10 19.41 NOV 20 17.40 MAY 03 16.79 JUN 23 17.12 AUG 18 26.50 SEP 22 20.02

OCT 22 18.57 DEC 10 17.10 MAY 20 16.89 JUL 27 35.44 AUG 26 25.06

NOV 19 17.44 MAR 23 16.90 JUN 08 16.99 JUL 29 39.39 SEP 08 22.70

WATER YEAR 2004 HIGHEST 16.79 MAY 03, 2004 LOWEST 39.39 JUL 29, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McINTOSH COUNTY--Continued

461446099312802. Local number, 132-071-14DDD2.

LOCATION.--Lat 46×14'46", long 99×31'28", Hydrologic Unit 10130104. Owner: North Dakota State Water Commission.

AQUIFER.--Wishek.

WELL CHARACTERISTICS.--Drilled observation well, depth 50 ft, cased with 38 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 38 to 41 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 2,028 ft. Measuring point: Top of casing 2.20 ft above land-surface datum.

PERIOD OF RECORD.--October 1977 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 9.57 ft below land-surface datum, April 29, 1997; lowest water level, 13.00 ft
below land-surface datum, December 23, 1991.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 10 11.77 NOV 20 11.41 MAY 03 11.02 JUN 23 11.23 AUG 18 11.90 SEP 22 11.88

OCT 22 11.67 DEC 10 11.55 MAY 20 11.08 JUL 27 11.75 AUG 26 12.09

NOV 19 11.41 MAR 23 11.07 JUN 08 11.10 JUL 29 11.70 SEP 08 11.80

WATER YEAR 2004 HIGHEST 11.02 MAY 03, 2004 LOWEST 12.09 AUG 26, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McKENZIE COUNTY

474814103104702. Local number, 150-098-23AAB2.

LOCATION.--Lat 47×48'14", long 103×10'47", Hydrologic Unit 10110205. Owner: North Dakota State Water Commission.

AQUIFER.--Cherry Creek.

WELL CHARACTERISTICS.--Drilled observation well, depth 120 ft, cased with 98 ft of 2-in diameter plastic pipe, No. 18 slot

screen set 98 to 103 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,002.58 ft. Measuring point: Top of casing 2.45 ft above land-surface datum.

PERIOD OF RECORD.--December 1979 to current year.

REMARKS.--Replacement well for well at 150-098-23AAB that was inadvertently destroyed. Water levels reflect the original well and

the replacement well.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 7.32 ft below land-surface datum, April 2, 1997; lowest water level, 10.31 ft
below land-surface datum, September 1, 2004. Extremes for period of record are a combination of the original well and the
replacement well.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 07 10.23 JAN 12 10.20 APR 12 9.67 JUN 09 9.95 JUL 29 10.20 SEP 01 10.31

NOV 24 10.18 FEB 29 10.17

WATER YEAR 2004 HIGHEST 9.67 APR 12, 2004 LOWEST 10.31 SEP 01, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McLEAN COUNTY

474026100583201. Local number, 148-081-03AAB.

LOCATION.--Lat 47×40'26", long 100×58'32", Hydrologic Unit 10130101. Owner: North Dakota State Water Commission.

AQUIFER.--Horseshoe Valley.

WELL CHARACTERISTICS.--Drilled observation well, depth 60 ft, cased with 40 ft of 4-in diameter plastic pipe, slotted 35 to 40 ft
below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape October 1997 to current year. Water-level recorder December 1967 to October 1997.
Only intermittent low and EOM water levels, obtained from strip-chart recorders, are available from the District office for
December 1967 to January 1975. From January 1975 to October 1997, daily maximum and minimum recorded water levels also are
available.

DATUM.--Altitude of land-surface datum is 1,883.4 ft. Measuring point: Top of casing 1.40 ft above land-surface datum.

PERIOD OF RECORD.--September 1967 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 7.04 ft below land-surface datum, April 11, 1996; lowest water level, 14.14 ft
below land-surface datum, September 3, 1991.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

NOV 12 8.70 MAY 06 8.34 MAY 17 8.50 JUL 08 9.75 AUG 04 10.62

WATER YEAR 2004 HIGHEST 8.34 MAY 06, 2004 LOWEST 10.62 AUG 04, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

McLEAN COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

MERCER COUNTY

472641102105901. Local number, 146-090-20CCC.

LOCATION.--Lat 47×26'41", long 102×10'59", Hydrologic Unit 10130201. Owner: North Dakota State Water Commission.

AQUIFER.--Fox Hills.

WELL CHARACTERISTICS.--Drilled observation well, depth 1,860 ft, cased with 1,540 ft of 4-in diameter steel pipe, open ended.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,120 ft. Measuring point: Top of casing 0.50 ft above land-surface datum.

PERIOD OF RECORD.--July 1968 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 71.92 ft below land-surface datum, March 18, 1969; lowest water level, 92.58 ft
below land-surface datum, September 23, 2004.

WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004

WATER WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 15 91.94 JAN 13 91.98 APR 08 92.05 JUN 09 92.32 JUL 07 92.32 SEP 23 92.58

NOV 24 92.01 FEB 25 91.96

WATER YEAR 2004 HIGHEST 91.94 OCT 15, 2003 LOWEST 92.58 SEP 23, 2004

U.S. Department of the Interior || U.S. Geological Survey Maintainer: Webmaster Privacy || Disclaimer|| Accessibility || FOIA