GROUND-WATER LEVELS

NETWORK SITES--Continued

SHERIDAN COUNTY

474817100063801. Local number, 150-074-14CCC.

LOCATION.--Lat 47×48'17", long 100×06'38", Hydrologic Unit 09020202. Owner: North Dakota State Water Commission.

AQUIFER.--Martin.

WELL CHARACTERISTICS.--Drilled observation well, depth 235 ft, cased with 130 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 130 to 133 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,630 ft. Measuring point: Top of casing 1.00 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 20.60 ft below land-surface datum, May 1, 2001; lowest water level, 29.06 ft
below land-surface datum, August 19, 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 16 22.04 MAR 25 21.98 JUN 09 21.73 JUL 21 21.25 AUG 19 21.74 SEP 23 21.90

NOV 19 22.05 MAY 04 21.85

WATER YEAR 2004 HIGHEST 21.25 JUL 21, 2004 LOWEST 22.04 OCT 16, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

SIOUX COUNTY

460244101272701. Local number, 130-086-28CCC1.

LOCATION.--Lat 46×02'44", long 101×27'27", Hydrologic Unit 10130205. Owner: North Dakota State Water Commission.

AQUIFER.--Fox Hills.

WELL CHARACTERISTICS.--Drilled observation well, depth 580 ft, cased with 406 ft of 2-in diameter steel pipe, No. 12 slot screen

set 406 to 424 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,062 ft. Measuring point: Top of casing 3.00 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 138.28 ft below land-surface datum, May 9, 2001; lowest water level, 140.13 ft
below land-surface datum, August 27, 1974.

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 01 138.81 MAR 26 138.49 APR 23 138.64 MAY 25 138.59 JUL 21 138.69 AUG 24 138.78

NOV 13 138.67

WATER YEAR 2004 HIGHEST 138.49 MAR 26, 2004 LOWEST 138.81 OCT 01, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

SIOUX COUNTY--Continued

460244101272702. Local number, 130-086-28CCC2.

LOCATION.--Lat 46×02'44", long 101×27'27", Hydrologic Unit 10130205. Owner: North Dakota State Water Commission.

AQUIFER.--Hell Creek.

WELL CHARACTERISTICS.--Drilled observation well, depth 210 ft, cased with 204 ft of 1.25-in diameter plastic pipe, No. 12 slot

screen set 204 to 210 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,062 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 134.70 ft below land-surface datum, June 12, 2003; lowest water level,
136.70 ft below land-surface datum, November 29, 1989.

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 01 135.13 MAR 26 134.79 APR 23 134.92 MAY 25 134.88 JUL 21 135.03 AUG 24 135.10

NOV 13 135.01

WATER YEAR 2004 HIGHEST 134.79 MAR 26, 2004 LOWEST 135.13 OCT 01, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

SIOUX COUNTY--Continued

462239100375601. Local number, 134-079-32ADD.

LOCATION.--Lat 46×22'39", long 100×37'56", Hydrologic Unit 10130102. Owner: North Dakota State Water Commission.

AQUIFER.--Strasburg.

WELL CHARACTERISTICS.--Drilled observation well, depth 340 ft, cased with 282 ft of 1.25-in diameter plastic pipe, No. 12 slot

screen set 282 to 288 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,690 ft. Measuring point: Top of casing 1.50 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 72.14 ft below land-surface datum, May 23, 2000; lowest water level, 78.60 ft
below land-surface datum, November 20, 1978.

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 01 73.54 MAR 26 73.47 APR 21 73.45 JUN 14 73.58 JUL 28 73.51 SEP 07 73.77

NOV 13 73.43

WATER YEAR 2004 HIGHEST 73.43 NOV 13, 2003 LOWEST 73.77 SEP 07, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

STARK COUNTY

465755102410701. Local number, 140-095-08AAA.

LOCATION.--Lat 46×57'55", long 102×41'07", Hydrologic Unit 10130201. Owner: North Dakota State Water Commission.

AQUIFER.--Sentinel Butte.

WELL CHARACTERISTICS.--Drilled observation well, depth 160 ft, cased with 80 ft of 4-in diameter plastic pipe.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,419 ft. Measuring point: Top of casing 1.70 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 15.61 ft below land-surface datum, June 19, 1970; lowest water level, 22.64 ft
below land-surface datum, February 25, 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 10 18.77 MAR 24 17.42 APR 14 17.17 MAY 28 17.64 JUL 13 18.32 AUG 26 18.91

NOV 20 18.98

WATER YEAR 2004 HIGHEST 17.17 APR 14, 2004 LOWEST 18.98 NOV 20, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

STARK COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

STEELE COUNTY

472024097315201. Local number, 145-054-27CDC.

LOCATION.--Lat 47×20'24", long 97×31'52", Hydrologic Unit 09020109. Owner: North Dakota State Water Commission.

AQUIFER.--Dakota.

WELL CHARACTERISTICS.--Drilled observation well, depth 820 ft, cased from 0 to 273 ft with 4-in diameter steel pipe and from 273

to 640 ft with 2 in diameter steel pipe, No. 12 slot screen set 640 to 660 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,145 ft. Measuring point: Top of casing 0.50 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 53.01 ft below land-surface datum, November 27, 1979; lowest water level,
79.08 ft below land-surface datum, November 4, 1970.

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 64.48 DEC 22 65.37 JUL 13 63.20 JUL 21 76.98 AUG 04 76.79 AUG 31 76.65

NOV 05 65.78 MAR 08 66.97

WATER YEAR 2004 HIGHEST 63.20 JUL 13, 2004 LOWEST 76.98 JUL 21, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

STUTSMAN COUNTY

463846098274101. Local number, 137-062-26DDD.

LOCATION.--Lat 46×38'46", long 98×27'41", Hydrologic Unit 10160003. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 240 ft, cased with 157 ft of 1.25-in diameter plastic pipe, No. 12 slot

screen set 157 to 163 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,441.8 ft. Measuring point: Top of casing 1.92 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 0.92 ft below land-surface datum, June 8, 1999; lowest water level, 20.67 ft
below land-surface datum, May 28, 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 14 8.20 DEC 10 8.74 JUN 23 8.28 JUL 26 7.45 AUG 23 7.15 SEP 21 7.34

NOV 18 8.39 MAY 11 9.20

WATER YEAR 2004 HIGHEST 7.15 AUG 23, 2004 LOWEST 9.20 MAY 11, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

STUTSMAN COUNTY--Continued

465243098284801. Local number, 139-062-02CCC.

LOCATION.--Lat 46×52'43", long 98×28'48", Hydrologic Unit 10160003. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 240 ft, cased with 210 ft of 4-in diameter steel pipe, slotted 195 to 210

ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder May 1967 to current year. Only intermittent low and EOM water levels, obtained from strip-
chart recorders, are available from the District office for May 1967 to August 1973. From August 1973 to current year, daily

maximum and minimum recorded water levels also are available.

DATUM.--Altitude of land-surface datum is 1,466.1 ft. Measuring point: Top of casing 1.00 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 27.40 ft below land-surface datum, July 19, 1968; lowest water level, 45.85 ft
below land-surface datum, August 17, 1991.

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 36.58 --- --- 37.21 37.35 37.69 37.99 38.21 37.95 37.96 37.67 37.37

2 36.58 --- --- 37.19 37.36 37.74 37.99 38.21 37.99 37.89 37.74 37.35

3 36.51 --- --- 37.29 37.37 37.75 38.00 38.21 38.03 37.80 37.74 37.34

4 36.55 --- --- 37.32 37.38 37.75 38.00 38.21 38.05 37.71 37.74 37.35

5 36.58 --- --- 37.34 37.38 37.75 38.00 38.21 38.08 37.63 37.74 37.34

6 36.60 --- --- 37.33 37.40 37.75 38.00 38.29 38.09 37.60 37.70 37.31

7 --- --- --- 37.32 37.41 37.82 38.06 38.33 38.11 37.54 37.57 37.32

8 --- --- --- 37.37 37.41 37.82 38.08 38.34 38.21 37.52 37.50 37.32

9 --- --- --- 37.41 37.39 37.83 38.13 38.34 38.22 37.47 37.46 37.29

10 --- --- --- 37.41 37.40 37.83 38.16 38.43 38.25 37.45 37.46 37.32

11 --- --- --- 37.39 37.43 37.81 38.17 38.43 38.14 37.41 37.44 37.32

12 --- --- --- 37.40 37.46 37.81 38.17 38.33 37.96 37.32 37.41 37.32

13 --- --- --- 37.42 37.45 37.81 38.17 38.28 37.95 37.29 37.40 37.30

14 --- --- --- 37.41 37.48 37.82 38.16 38.28 38.02 37.27 37.40 37.29

15 --- --- --- 37.39 37.48 37.84 38.14 38.28 38.05 37.31 37.39 37.30

16 --- --- --- 37.35 37.48 37.84 38.14 38.28 38.04 37.80 37.37 37.30

17 --- --- 37.04 37.40 37.49 37.85 38.17 38.28 38.07 37.80 37.37 37.34

18 --- --- 37.07 37.41 37.49 37.88 38.17 38.28 38.08 37.76 37.35 37.35

19 --- --- 37.08 37.42 37.49 37.88 38.15 38.28 38.06 37.78 37.35 37.38

20 --- --- 37.08 37.41 37.49 37.88 38.15 38.29 38.05 37.78 37.35 37.40

21 --- --- 37.08 37.37 37.51 37.88 38.07 38.31 37.98 37.76 37.35 37.40

22 --- --- 37.12 37.38 37.53 37.89 38.09 38.28 37.98 37.78 37.26 37.41

23 --- --- 37.15 37.37 37.57 37.93 38.13 38.28 37.97 37.79 37.24 37.37

24 --- --- 37.16 37.36 37.59 37.95 38.15 38.28 37.97 37.79 37.20 37.34

25 --- --- 37.16 37.36 37.63 37.96 38.13 38.28 37.97 37.78 37.21 37.34

26 --- --- 37.17 37.32 37.63 37.97 38.15 38.28 37.96 37.76 37.23 37.35

27 --- --- 37.17 37.35 37.64 38.00 38.15 38.28 37.94 37.76 37.30 37.39

28 --- --- 37.13 37.34 37.68 37.99 38.11 38.40 37.87 37.70 37.30 37.41

29 --- --- 37.16 37.34 37.69 37.99 38.15 38.40 37.90 37.69 37.30 37.40

30 --- --- 37.18 37.33 --- 37.99 38.17 38.33 37.96 37.67 37.32 37.34

31 --- --- 37.21 37.33 --- 37.99 --- 38.08 --- 37.68 37.37 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

STUTSMAN COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

STUTSMAN COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

STUTSMAN COUNTY--Continued

465757098274401. Local number, 140-062-02DDD.

LOCATION.--Lat 46×57'57", long 98×27'44", Hydrologic Unit 10160003. Owner: Ottertail Power Company.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 263 ft, cased with 207 ft of 12-in diameter steel pipe, No. 8 slot screen

set 207 to 257 ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder July 1984 to current year, daily maximum and minimum recorded water levels also are
available.

DATUM.--Altitude of land-surface datum is 1,480 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

PERIOD OF RECORD.--July 1984 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 52.04 ft below land-surface datum, January 13 and 17, 1985; lowest water
level, 77.02 ft below land-surface datum, May 27, 2004.

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 69.63 --- --- --- --- --- --- --- 76.31 75.63 76.34 76.34

2 69.65 --- --- --- --- --- --- --- 76.35 75.60 76.26 76.40

3 69.68 --- --- --- --- --- --- --- 76.36 75.56 76.15 76.44

4 69.66 --- --- --- --- --- --- --- 76.33 75.57 76.13 76.50

5 69.62 --- --- --- --- --- --- --- 76.26 75.59 76.04 76.52

6 69.56 --- --- --- --- --- --- --- 76.20 75.61 75.83 76.62

7 --- --- --- --- --- --- --- --- 76.07 75.59 75.55 76.73

8 --- --- --- --- --- --- --- --- 76.29 75.57 75.36 76.79

9 --- --- --- --- --- --- --- --- 76.34 75.54 75.11 76.79

10 --- --- --- --- --- --- --- --- 76.36 75.54 74.97 76.89

11 --- --- --- --- --- --- --- --- 76.26 75.43 75.00 76.99

12 --- --- --- --- --- --- --- --- 76.23 75.39 75.08 77.05

13 --- --- --- --- --- --- --- --- 76.24 75.47 75.10 77.13

14 --- --- --- --- --- --- --- --- 76.22 75.53 75.03 77.20

15 --- --- --- --- --- --- --- --- 76.20 75.57 74.95 77.18

16 --- --- --- --- --- --- --- --- 76.22 75.64 74.85 77.22

17 --- --- --- --- --- --- --- --- 76.28 75.65 74.93 77.32

18 --- --- --- --- --- --- --- --- 76.37 75.64 75.08 77.40

19 --- --- --- --- --- --- --- --- 76.40 75.60 75.22 77.47

20 --- --- --- --- --- --- --- --- 76.40 75.59 75.37 77.53

21 --- --- --- --- --- --- --- --- 76.30 75.74 75.42 77.65

22 --- --- --- --- --- --- --- --- 76.17 75.96 75.48 77.69

23 --- --- --- --- --- --- --- --- 76.16 76.09 75.55 77.62

24 --- --- --- --- --- --- --- --- 76.20 76.18 75.71 77.54

25 --- --- --- --- --- --- --- --- 76.18 76.20 75.80 77.50

26 --- --- --- --- --- --- --- --- 76.10 76.21 75.99 77.44

27 --- --- --- --- --- --- --- --- 76.00 76.25 76.13 77.52

28 --- --- --- --- --- --- --- 76.98 75.88 76.31 76.15 77.52

29 --- --- --- --- --- --- --- 76.78 75.76 76.34 76.13 77.43

30 --- --- --- --- --- --- --- 76.59 75.65 76.40 76.16 77.31

31 --- --- --- --- --- --- --- 76.31 --- 76.37 76.27 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

STUTSMAN COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

TOWNER COUNTY

482908099134601. Local number, 158-066-30BBB.

LOCATION.--Lat 48×29'08", long 99×13'46", Hydrologic Unit 09020201. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 322 ft, cased with 208 ft of 5-in diameter steel pipe, No. 40 slot screen

set 208 to 213 ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder April 1980 to November 1996 and October 1998 to current year, daily maximum and minimum
recorded water levels also are available.

DATUM.--Altitude of land-surface datum is 1,481 ft. Measuring point: Top of casing 1.40 ft above land-surface datum.

PERIOD OF RECORD.--June 1980 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 7.60 ft below land-surface datum, August 15-16, 1999; lowest water level,
13.99 ft below land-surface datum, April 11-13, 1991.

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 8.88 9.00 9.08 9.14 9.25 9.40 9.46 9.45 --- 8.31 8.36 8.53

2 8.86 9.02 9.08 9.11 9.27 9.45 9.46 9.45 --- 8.30 8.36 8.48

3 8.82 9.02 9.06 9.17 9.27 9.45 9.46 9.45 --- 8.27 8.38 8.50

4 8.82 8.99 9.09 9.18 9.27 9.43 9.46 --- --- 8.27 8.40 8.51

5 8.83 8.97 9.10 9.18 9.30 9.40 9.46 --- --- 8.27 8.41 8.50

6 8.83 9.00 9.08 9.15 9.31 9.40 9.46 --- --- 8.27 8.40 8.56

7 8.82 9.05 9.01 9.17 9.31 9.46 9.46 --- --- 8.27 8.37 8.59

8 8.82 9.05 9.08 9.20 9.26 9.49 9.45 --- --- 8.26 8.37 8.59

9 8.83 9.01 9.09 9.20 9.30 9.50 9.45 --- --- 8.26 8.42 8.56

10 8.86 8.97 9.09 9.20 9.30 9.48 9.45 --- 8.60 8.26 8.42 8.58

11 8.88 8.93 9.08 9.16 9.36 9.52 9.45 --- 8.52 8.26 8.42 8.61

12 8.88 9.00 9.07 9.22 9.36 9.50 9.45 --- 8.46 8.26 8.44 8.58

13 8.89 9.00 9.05 9.22 9.34 9.46 9.45 --- 8.46 --- 8.44 8.53

14 8.90 8.96 9.02 9.20 9.36 9.52 9.45 --- 8.46 8.35 8.44 8.56

15 8.91 8.96 9.08 9.18 9.36 9.53 9.45 --- 8.45 8.30 8.44 8.56

16 8.94 8.96 9.09 9.19 9.37 9.50 9.45 --- 8.44 8.31 8.43 8.56

17 8.94 8.93 9.09 9.24 9.37 9.47 9.45 --- 8.43 8.30 8.43 8.57

18 8.93 8.93 9.14 9.25 9.34 9.51 9.45 --- 8.45 8.29 8.44 8.58

19 8.92 8.96 9.14 9.25 9.34 9.50 9.45 --- 8.45 8.28 8.45 8.56

20 8.94 9.01 9.10 9.24 9.35 9.62 9.45 --- 8.39 8.27 8.47 8.58

21 8.94 9.05 9.10 9.28 9.35 9.62 9.45 --- 8.34 8.28 8.46 8.62

22 8.96 9.05 9.14 9.28 9.39 9.58 9.45 --- 8.34 8.33 8.47 8.63

23 8.96 9.05 9.14 9.27 9.40 9.54 9.45 --- 8.34 8.35 8.47 8.60

24 8.94 9.02 9.13 9.27 9.42 9.51 9.45 --- 8.34 8.36 8.43 8.59

25 9.01 8.93 9.11 9.25 9.41 9.52 9.45 --- 8.34 8.36 8.44 8.60

26 9.01 8.97 9.11 9.22 9.39 9.48 9.45 --- 8.34 8.34 8.45 8.60

27 8.97 9.05 9.10 9.24 9.39 9.46 9.45 --- 8.33 8.32 8.51 8.65

28 8.90 9.06 9.11 9.26 9.40 9.46 9.45 --- 8.33 8.32 8.52 8.65

29 8.93 8.96 9.12 9.27 9.40 9.46 9.45 --- 8.31 8.34 8.49 8.61

30 8.97 9.03 9.12 9.26 --- 9.46 9.45 --- 8.31 8.34 8.52 8.58

31 9.00 --- 9.14 9.24 --- 9.46 --- --- --- 8.34 8.53 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

TOWNER COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

TOWNER COUNTY--Continued

484209099174101. Local number, 160-067-10BBB1.

LOCATION.--Lat 48×42'09", long 99×17'41", Hydrologic Unit 09020201. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 402 ft, cased with 356 ft of 2-in diameter steel pipe, No. 12 slot screen

set 356 to 362 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,570 ft. Measuring point: Top of casing 4.00 ft above land-surface datum.

PERIOD OF RECORD.--July 1980 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 27.48 ft below land-surface datum, November 18, 2002; lowest water level,
42.98 ft below land-surface datum, June 11, 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 16 29.09 MAY 04 29.95 JUN 09 29.69 JUL 22 29.27 AUG 19 29.30 SEP 23 29.28

MAR 25 29.75

WATER YEAR 2004 HIGHEST 29.09 OCT 16, 2003 LOWEST 29.95 MAY 04, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

TOWNER COUNTY--Continued

484209099174102. Local number, 160-067-10BBB2.

LOCATION.--Lat 48×42'09", long 99×17'41", Hydrologic Unit 09020201. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 62 ft, cased with 57 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 57 to 60 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,570 ft. Measuring point: Top of casing 1.00 ft above land-surface datum.

PERIOD OF RECORD.--July 1980 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 2.15 ft below land-surface datum, June 9, 2004; lowest water level, 33.50 ft
below land-surface datum, September 11, 1980.

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 16 9.23 MAY 04 3.29 JUN 09 2.15 JUL 22 4.03 AUG 19 4.78 SEP 23 4.80

MAR 25 7.99

WATER YEAR 2004 HIGHEST 2.15 JUN 09, 2004 LOWEST 9.23 OCT 16, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

TOWNER COUNTY--Continued

485659099222801. Local number, 163-067-18AAA1.

LOCATION.--Lat 48×56'59", long 99×22'28", Hydrologic Unit 09020313. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 282 ft, cased with 252 ft of 2-in diameter steel pipe, No. 18 slot screen

set 252 to 258 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,582 ft. Measuring point: Top of casing 3.30 ft above land-surface datum.

PERIOD OF RECORD.--July 1980 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 37.10 ft below land-surface datum, June 22, 1999; lowest water level, 45.00 ft
below land-surface datum, April 3, 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 16 42.99 MAY 04 41.37 JUN 09 40.01 JUL 22 39.84 AUG 19 40.17 SEP 23 40.23

MAR 25 43.51

WATER YEAR 2004 HIGHEST 39.84 JUL 22, 2004 LOWEST 43.51 MAR 25, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

TOWNER COUNTY--Continued

485659099222802. Local number, 163-067-18AAA2.

LOCATION.--Lat 48×56'59", long 99×22'28", Hydrologic Unit 09020313. Owner: North Dakota State Water Commission.

AQUIFER.--Spiritwood.

WELL CHARACTERISTICS.--Drilled observation well, depth 142 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 1,582 ft. Measuring point: Top of casing 2.80 ft above land-surface datum.

PERIOD OF RECORD.--July 1980 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 35.38 ft below land-surface datum, June 22, 1999; lowest water level, 43.67 ft
below land-surface datum, April 3, 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 16 41.95 MAY 04 40.40 JUN 09 39.10 JUL 22 38.80 AUG 19 38.97 SEP 23 39.08

MAR 25 42.47

WATER YEAR 2004 HIGHEST 38.80 JUL 22, 2004 LOWEST 42.47 MAR 25, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY

481234097234604. Local number, 155-053-25CDD4.

LOCATION.--Lat 48×12'35", long 97×23'44", Hydrologic Unit 09020308. Owner: U.S. Geological Survey.

AQUIFER.--Lacustrine Deposits.

WELL CHARACTERISTICS.--Drilled observation well, depth 85 ft, cased with 80 ft of 2-in diameter plastic pipe, screen set 80 to

85 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 834 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

PERIOD OF RECORD.--October 1991 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, -2.00 ft below land-surface datum, Nov. 15, 1996; lowest water level, 6.84 ft
below land-surface datum, June 24, 1992.

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

(READINGS ABOVE LAND SURFACE INDICATED BY "-")

WATER WATER WATER WATER WATER

DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL DATE LEVEL

OCT 09 -0.90 NOV 17 -1.19 JUN 08 -1.71 JUL 12 -1.35 AUG 23 -1.43

WATER YEAR 2004 HIGHEST -1.71 JUN 08, 2004 LOWEST -0.90 OCT 09, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY--Continued

481234097234605. Local number, 155-053-25CDD5.

LOCATION.--Lat 48×12'35", long 97×23'44", Hydrologic Unit 09020308. Owner: U.S. Geological Survey.

AQUIFER.--Lacustrine Deposits.

WELL CHARACTERISTICS.--Drilled observation well, depth 25 ft, cased with 20 ft of 2-in diameter plastic pipe, screen set 20 to

25 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 834 ft. Measuring point: Top of casing 2.25 ft above land-surface datum.

PERIOD OF RECORD.--September 1991 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 0.99 ft below land-surface datum, June 27, 2002; lowest water level, 7.09 ft
below land-surface datum, January 19, 1995.

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 6.12 DEC 17 6.15 FEB 12 7.09 JUN 08 1.50 JUL 12 3.38 AUG 23 4.89

NOV 17 6.03

WATER YEAR 2004 HIGHEST 1.50 JUN 08, 2004 LOWEST 7.09 FEB 12, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY--Continued

481841097490301. Local number, 156-056-22DDD.

LOCATION.--Lat 48×18'41", long 97×49'03", Hydrologic Unit 09020308. Owner: North Dakota State Water Commission.

AQUIFER.--Fordville.

WELL CHARACTERISTICS.--Drilled observation well, depth 280 ft, cased with 52 ft of 4-in diameter plastic pipe, screen set 52 to

57 ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder August 1968 to current year. Only intermittent low and EOM water levels, obtained from strip-

chart recorders, are available from the District office for August 1968 to September 1970. From October 1970 to current year,

daily maximum and minimum recorded water levels also are available.

DATUM.--Altitude of land-surface datum is 1,170 ft. Measuring point: Top of casing 1.90 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 17.35 ft below land-surface datum, July 22, 1974; lowest water level, 24.21 ft
below land-surface datum, June 7, 1993.

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 20.68 20.56 20.67 20.76 20.87 21.04 20.25 19.75 19.66 19.40 19.39 19.34

2 20.68 20.55 20.63 20.77 20.96 21.08 20.17 19.75 19.71 19.40 19.41 19.32

3 20.67 20.56 20.67 20.78 20.94 21.08 20.12 19.75 19.69 19.27 19.44 19.33

4 20.68 20.52 20.66 20.78 20.95 21.02 20.07 19.75 19.69 19.21 19.45 19.33

5 20.69 20.57 20.64 20.83 20.95 21.03 20.04 19.79 19.58 19.20 19.47 19.31

6 20.67 20.53 20.59 20.81 20.95 21.02 20.02 19.76 19.53 19.23 19.47 19.33

7 20.68 20.56 20.60 20.81 20.91 21.03 20.05 19.78 19.54 19.27 19.33 19.32

8 20.68 20.55 20.67 20.83 20.91 21.03 20.02 19.78 19.59 19.32 19.31 19.32

9 20.67 20.53 20.65 20.83 20.97 21.03 20.02 19.79 19.61 19.32 19.35 19.40

10 20.62 20.55 20.59 20.82 20.98 21.02 20.03 19.80 19.61 19.25 19.33 19.38

11 20.63 20.56 20.59 20.84 20.98 21.02 20.03 19.84 19.58 19.23 19.35 19.43

12 20.60 20.56 20.67 20.86 20.99 21.02 20.03 19.80 19.50 19.29 19.42 19.39

13 20.66 20.57 20.64 20.85 20.97 21.19 20.02 19.78 19.43 19.32 19.44 19.40

14 20.65 20.58 20.66 20.86 20.99 21.15 20.02 19.78 19.46 19.35 19.42 19.40

15 20.61 20.58 20.71 20.86 20.98 21.11 20.02 19.75 19.48 19.38 19.36 19.48

16 20.65 20.55 20.74 20.85 21.01 21.13 20.02 19.71 19.42 19.38 19.39 19.48

17 20.65 20.55 20.77 20.90 21.01 21.14 20.01 19.76 19.48 19.34 19.40 19.45

18 20.67 20.55 20.79 20.95 20.99 21.12 20.01 19.77 19.41 19.26 19.46 19.48

19 20.65 20.55 20.78 20.96 21.00 21.12 19.87 19.79 19.39 19.31 19.45 19.48

20 20.66 20.59 20.75 20.99 20.99 21.12 19.79 19.76 19.34 19.38 19.45 19.44

21 20.65 20.60 20.78 20.96 21.00 21.08 19.80 19.76 19.36 19.39 19.44 19.44

22 20.66 20.62 20.82 20.89 21.02 21.14 19.79 19.73 19.36 19.39 19.39 19.44

23 20.64 20.60 20.80 20.90 21.04 21.15 19.79 19.75 19.38 19.38 19.40 19.43

24 20.62 20.59 20.76 20.90 21.06 21.09 19.78 19.75 19.37 19.39 19.35 19.39

25 20.60 20.59 20.76 20.85 21.03 21.03 19.86 19.72 19.33 19.39 19.35 19.36

26 20.56 20.60 20.78 20.89 21.03 21.03 19.77 19.72 19.30 19.39 19.34 19.33

27 20.56 20.58 20.79 20.89 20.99 21.02 19.78 19.75 19.28 19.43 19.37 19.33

28 20.57 20.64 20.81 20.92 21.02 20.84 19.90 19.76 19.31 19.44 19.33 19.34

29 20.56 20.62 20.83 20.91 21.00 20.35 19.90 19.71 19.38 19.36 19.31 19.31

30 20.58 20.66 20.82 20.89 --- 20.30 19.80 19.65 19.40 19.39 19.34 19.28

31 20.58 --- 20.83 20.90 --- 20.27 --- 19.68 --- 19.45 19.35 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY--Continued

482408097443201. Local number, 157-055-21DBC.

LOCATION.--Lat 48×24'08", long 97×44'32", Hydrologic Unit 09020310. Owner: North Dakota State Water Commission.

AQUIFER.--Dakota.

WELL CHARACTERISTICS.--Drilled observation well, depth 496 ft, cased with 491 ft of 4-in diameter steel pipe, screen set 491 to

496 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 975 ft. Measuring point: Top of casing 0.00 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 87.08 ft below land-surface datum, January 6, 2003; lowest water level,
92.09 ft below land-surface datum, June 15, 1972.

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 88.18 NOV 20 87.67 JAN 12 88.02 JUN 07 87.63 JUL 14 87.91 AUG 24 87.86

WATER YEAR 2004 HIGHEST 87.63 JUN 07, 2004 LOWEST 88.18 OCT 09, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY--Continued

482449098095801. Local number, 157-058-18DDD.

LOCATION.--Lat 48×24'49", long 98×09'58", Hydrologic Unit 09020308. Owner: North Dakota State Water Commission.

AQUIFER.--Pierre Shale.

WELL CHARACTERISTICS.--Drilled observation well, depth 140 ft, cased with 80 ft of 4-in diameter plastic pipe, screen set 80 to

100 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,580 ft. Measuring point: Top of casing 1.00 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, -0.89 ft below land-surface datum, December 5, 1972; lowest water level,
9.89 ft below land-surface datum, November 21, 1989.

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 3.19 JAN 12 3.35 MAR 15 3.76 JUN 07 0.94 JUL 14 3.28 AUG 24 4.46

NOV 20 3.05

WATER YEAR 2004 HIGHEST 0.94 JUN 07, 2004 LOWEST 4.46 AUG 24, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

WALSH COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WARD COUNTY

481058101120403. Local number, 154-082-03CDC3.

LOCATION.--Lat 48×10'58", long 101×12'04", Hydrologic Unit 09010001. Owner: North Dakota State Water Commission.

AQUIFER.--Sundre Buried Channel.

WELL CHARACTERISTICS.--Drilled observation well, depth 220 ft, cased with 170 ft of 12-in diameter steel pipe, screen set 170 to

220 ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder November 1976 to current year, daily maximum and minimum recorded water levels also are
available. Measured using a steel tape December 1968 to June 1973.

DATUM.--Altitude of land-surface datum is 1,544 ft. Measuring point: Top of casing 1.45 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 8.73 ft below land-surface datum, June 9, 1970; lowest water level, 64.79 ft
below land-surface datum, August 28, 2002.

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 63.71 61.40 58.01 --- --- 54.91 --- 57.06 58.66 61.73 62.55 59.80

2 63.71 61.31 --- --- --- 55.06 --- 57.13 58.79 61.59 62.65 59.42

3 63.72 61.30 --- --- --- 55.06 --- 57.77 58.80 59.67 62.72 59.47

4 63.74 --- --- --- --- 55.05 --- 57.99 60.24 59.68 62.81 59.48

5 63.80 --- --- --- --- 54.39 --- 58.24 60.39 59.41 62.83 59.46

6 63.81 --- --- --- --- 54.18 --- 58.56 60.43 61.01 62.82 60.08

7 63.80 62.95 --- --- --- 54.25 --- 58.63 58.99 61.46 62.83 60.28

8 63.84 62.95 --- --- --- 54.22 --- 58.76 59.14 61.59 61.36 60.29

9 63.85 62.94 --- --- --- --- --- 58.96 59.17 60.14 60.50 60.29

10 63.92 62.91 --- --- --- --- --- 59.20 59.14 59.86 60.34 60.41

11 64.00 61.00 --- --- --- --- --- 59.20 58.98 59.85 60.16 60.46

12 64.00 60.59 --- --- --- --- --- 58.79 59.00 59.85 60.03 60.41

13 64.00 --- --- --- --- --- --- 58.89 58.55 60.17 60.36 60.40

14 62.52 --- --- --- --- --- --- 58.90 58.83 61.65 60.41 60.50

15 62.38 --- --- --- --- --- --- 57.38 59.00 61.68 60.38 60.53

16 62.31 59.91 --- --- --- --- --- 57.26 59.09 61.82 60.74 60.53

17 62.25 59.68 --- --- --- --- --- 58.73 59.18 61.87 60.78 60.56

18 62.15 59.53 --- --- --- --- --- 59.38 59.24 60.51 62.26 60.56

19 62.09 59.46 --- --- --- --- --- 59.56 59.25 61.86 62.42 60.75

20 62.06 58.91 --- --- --- --- --- 59.83 59.14 62.01 62.55 62.02

21 62.04 58.91 --- --- --- --- --- 59.86 59.05 62.21 62.56 62.27

22 62.03 59.09 --- --- --- --- 54.08 60.01 59.04 62.36 62.53 62.29

23 62.03 59.09 --- --- --- --- 54.30 60.01 59.09 62.45 61.32 62.28

24 61.96 59.03 --- --- --- --- 54.35 57.97 60.64 62.49 60.84 60.87

25 62.05 58.69 --- --- --- --- 54.52 57.80 60.77 62.50 60.77 60.83

26 62.00 58.67 --- --- --- --- 54.62 58.13 61.16 62.47 60.70 60.72

27 --- 58.73 --- --- 54.14 --- 55.98 58.34 61.36 62.35 60.77 60.77

28 --- 58.45 --- --- 54.18 --- 56.40 58.36 61.45 62.41 60.77 60.76

29 --- 58.02 --- --- 54.73 --- 56.66 58.36 61.51 62.43 60.10 60.62

30 61.41 57.98 --- --- --- --- 56.90 58.37 61.67 62.45 59.94 59.75

31 61.43 --- --- --- --- --- --- 58.46 --- 62.50 59.84 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

WARD COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WARD COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WELLS COUNTY

472329099194401. Local number, 145-068-10BCC.

LOCATION.--Lat 47×23'29", long 99×19'44", Hydrologic Unit 10160002. Owner: North Dakota State Water Commission.

AQUIFER.--Pipestem Creek.

WELL CHARACTERISTICS.--Drilled observation well, depth 52 ft, cased with 25 ft of 1.25-in diameter plastic pipe, No. 12 slot

screen set 25 to 27 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,630 ft. Measuring point: Top of casing 2.00 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 6.94 ft below land-surface datum, May 2, 2001; lowest water level, 13.61 ft
below land-surface datum, November 30, 1977.

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 16 10.90 MAR 25 10.48 JUN 08 9.13 JUL 28 9.36 AUG 18 9.76 SEP 22 10.12

NOV 19 11.13 MAY 04 10.16

WATER YEAR 2004 HIGHEST 9.13 JUN 08, 2004 LOWEST 11.13 NOV 19, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

WELLS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WELLS COUNTY--Continued

474419099371201. Local number, 149-070-09DAA1.

LOCATION.--Lat 47×44'19", long 99×37'12", Hydrologic Unit 10160001. Owner: North Dakota State Water Commission.

AQUIFER.--New Rockford.

WELL CHARACTERISTICS.--Drilled observation well, depth 283 ft, cased with 197 ft of 1.25-in diameter plastic pipe, slotted 177

to 197 ft below land-surface datum.

INSTRUMENTATION.--Measured using an electric tape.

DATUM.--Altitude of land-surface datum is 1,612.7 ft. Measuring point: Top of casing 2.16 ft above land-surface datum.

PERIOD OF RECORD.--May 1966 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 62.16 ft below land-surface datum, August 24, 2004; lowest water level,
66.65 ft below land-surface datum, March 15, 1967.

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 16 62.78 MAR 25 62.36 MAY 18 62.69 JUL 21 62.35 AUG 24 62.16 SEP 22 62.74

NOV 19 62.37 MAY 04 62.59 JUN 08 62.71 AUG 18 62.55

WATER YEAR 2004 HIGHEST 62.16 AUG 24, 2004 LOWEST 62.78 OCT 16, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

WELLS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WILLIAMS COUNTY

481056103024201. Local number, 154-096-08AAA.

LOCATION.--Lat 48×10'56", long 103×02'42", Hydrologic Unit 10110101. Owner: North Dakota State Water Commission.

AQUIFER.--Hofflund.

WELL CHARACTERISTICS.--Drilled observation well, depth 120 ft, cased with 77 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 77 to 83 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 1,864.95 ft. Measuring point: Top of casing 1.87 ft above land-surface datum.

PERIOD OF RECORD.--August 1969 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 15.55 ft below land-surface datum, August 4, 1975; lowest water level, 32.53 ft
below land-surface datum, September 8, 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 29 27.75 MAY 05 29.80 JUN 08 30.46 JUL 13 29.85 AUG 12 31.04 SEP 08 32.53

DEC 08 27.46

WATER YEAR 2004 HIGHEST 27.46 DEC 08, 2003 LOWEST 32.53 SEP 08, 2004

GROUND-WATER LEVELS

NETWORK SITES--Continued

WILLIAMS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WILLIAMS COUNTY--Continued

483016103242801. Local number, 158-099-13DDD.

LOCATION.--Lat 48×30'16", long 103×24'28", Hydrologic Unit 10110102. Owner: North Dakota State Water Commission.

AQUIFER.--Ray.

WELL CHARACTERISTICS.--Drilled observation well, depth 294 ft, cased with 255 ft of 1.25-in diameter plastic pipe, No. 18 slot

screen set 255 to 257 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,243 ft. Measuring point: Top of casing 1.90 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 134.00 ft below land-surface datum, June 17, 2003; lowest water level,
146.09 ft below land-surface datum, November 8, 1965.

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 06 134.52 JAN 12 134.50 FEB 23 134.45 MAY 25 134.15 AUG 03 134.40 SEP 14 134.10

NOV 18 134.40

WATER YEAR 2004 HIGHEST 134.10 SEP 14, 2004 LOWEST 134.52 OCT 06, 2003

GROUND-WATER LEVELS

NETWORK SITES--Continued

WILLIAMS COUNTY--Continued

483127103373102. Local number, 158-100-08DAA2.

LOCATION.--Lat 48×31'27", long 103×37'31", Hydrologic Unit 10110102. Owner: North Dakota State Water Commission.

AQUIFER.--Little Muddy.

WELL CHARACTERISTICS.--Drilled observation well, depth 94 ft, cased with 78 ft of 4-in diameter plastic pipe, slotted 68 to 78

ft below land-surface datum.

INSTRUMENTATION.--Water-level recorder August 1966 to current year, daily maximum and minimum recorded water levels also are
available.

DATUM.--Altitude of land-surface datum is 1,997.8 ft. Measuring point: Top of casing 1.43 ft above land-surface datum.

PERIOD OF RECORD.--August 1966 to current year.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 24.24 ft below land-surface datum, May 4, 1976; lowest water level,
31.70 ft below land-surface datum, August 27, 2003.

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 29.73 28.29 28.05 27.74 27.65 27.57 27.10 28.10 27.25 28.82 29.45 29.48

2 29.05 28.30 27.96 27.79 27.66 27.58 27.13 28.37 27.25 28.44 29.33 30.42

3 28.93 28.29 27.94 27.81 27.65 27.57 27.10 28.38 27.22 28.22 29.65 30.51

4 29.51 28.23 28.02 27.80 27.65 27.52 26.99 27.73 27.20 28.24 29.66 29.85

5 29.78 28.23 28.02 27.79 27.67 27.54 27.02 27.76 27.29 28.58 29.21 29.52

6 29.07 28.24 27.86 27.74 27.67 27.60 27.01 27.82 27.37 28.41 30.02 29.87

7 28.86 28.24 27.92 27.74 27.61 27.61 27.05 27.89 27.49 --- 30.23 30.51

8 28.81 28.21 27.95 27.75 27.61 27.61 27.01 27.85 27.60 28.35 29.70 30.37

9 28.77 28.17 27.95 27.77 27.66 27.60 27.06 27.80 27.78 28.14 29.22 30.53

10 28.74 28.12 27.92 27.73 27.63 27.61 27.05 27.80 27.92 28.04 29.03 30.63

11 28.72 28.19 27.87 27.75 27.71 27.61 27.01 27.70 27.49 28.07 28.91 30.71

12 28.68 28.20 27.88 27.76 27.67 27.51 27.00 27.63 27.41 28.05 29.23 29.81

13 29.14 28.17 27.85 27.76 27.61 27.58 27.00 27.63 27.39 27.97 29.23 29.53

14 28.80 28.09 27.85 27.75 27.61 27.58 27.00 27.58 27.35 27.99 29.41 29.40

15 28.63 28.10 27.94 27.67 27.61 27.53 26.97 27.52 27.32 27.95 29.41 29.28

16 28.61 28.09 27.92 27.74 27.62 27.49 27.04 27.52 28.12 28.38 29.15 29.20

17 28.54 28.08 27.92 27.75 27.62 27.52 27.04 27.49 28.76 29.00 29.05 29.19

18 28.54 28.09 27.90 27.75 27.56 27.53 27.00 27.80 29.12 29.26 29.36 29.76

19 28.51 28.10 27.89 27.68 27.59 27.57 27.01 27.84 29.32 29.24 29.67 30.41

20 28.54 28.12 27.79 27.69 27.60 27.61 26.97 27.54 29.41 29.48 30.18 30.27

21 28.48 28.12 27.85 27.73 27.58 27.57 27.00 27.45 29.18 30.06 30.37 29.57

22 28.48 28.09 27.86 27.72 27.60 27.43 27.03 27.42 29.16 30.13 30.57 29.29

23 28.44 28.06 27.85 27.71 27.60 27.41 27.05 27.40 28.34 29.36 30.57 29.21

24 28.45 28.01 27.79 27.70 27.57 27.37 26.99 27.37 28.58 29.21 29.95 30.03

25 28.48 27.98 27.80 27.67 27.55 27.36 27.01 27.37 28.68 28.90 29.79 30.28

26 28.39 28.05 27.80 27.69 27.55 27.35 27.04 27.29 29.17 28.96 29.59 29.71

27 28.36 28.10 27.77 27.71 27.60 27.22 27.73 27.30 29.33 30.21 29.45 29.35

28 28.36 28.08 27.81 27.71 27.61 27.21 28.25 27.28 28.47 30.21 30.08 29.34

29 28.33 27.94 27.81 27.67 27.59 27.20 28.29 27.23 28.29 30.56 30.30 29.22

30 28.36 28.05 27.77 27.62 --- 27.18 28.32 27.23 28.81 30.56 29.65 29.15

31 28.35 --- 27.77 27.65 --- 27.08 --- 27.23 --- 30.40 29.54 ---

GROUND-WATER LEVELS

NETWORK SITES--Continued

WILLIAMS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WILLIAMS COUNTY--Continued

GROUND-WATER LEVELS

NETWORK SITES--Continued

WILLIAMS COUNTY--Continued

483700103191501. Local number, 159-098-10AAD.

LOCATION.--Lat 48×37'00", long 103×19'15", Hydrologic Unit 10110102. Owner: North Dakota State Water Commission.

AQUIFER.--West Wildrose.

WELL CHARACTERISTICS.--Drilled observation well, depth 260 ft, cased with 214 ft of 1.25-in diameter plastic pipe, slotted 200

to 214 ft below land-surface datum.

INSTRUMENTATION.--Measured using a steel tape.

DATUM.--Altitude of land-surface datum is 2,225 ft. Measuring point: Top of casing 3.30 ft below land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 146.18 ft below land-surface datum, August 3, 2004; lowest water level,
153.81 ft below land-surface datum, November 8, 1965.

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 06 146.74 JAN 12 146.58 FEB 23 146.62 MAY 24 146.25 AUG 03 146.18 SEP 14 146.37

NOV 18 146.53

WATER YEAR 2004 HIGHEST 146.18 AUG 03, 2004 LOWEST 146.74 OCT 06, 2003

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