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RED RIVER OF THE NORTH BASIN
05058000 SHEYENNE RIVER BELOW BALDHILL DAM, ND
LOCATION.--Lat 47°01'56", long 98°05'08", in NW1/4SW1/4SW1/4 sec.18, T.141 N., R.58 W., Barnes County, Hydrologic Unit 09020204,
on left bank 0.7 mi downstream from Baldhill Dam, 8 mi northwest of Valley City, and at mile 269.8.
DRAINAGE AREA.--7,470 mi2, approximately, of which about 5,560 mi2 is probably noncontributing, including 3,800 mi2 in closed
basins.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.--October 1949 to current year. Monthly discharge only for some periods, published in WSP 1308.
REVISED RECORDS.--WSP 1728: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 1,200.00 ft above sea level. Prior to Dec. 29, 1994, at site .7 mi upstream at
same datum.
REMARKS.--Records fair. Gage moved 0.6 mile upstream on Sept. 19. Flow completely regulated by Lake Ashtabula (station
05057500). Records 1955 to 1972 include releases at Baldhill Dam to the fish-rearing ponds of the Fish and Wildlife
Service. Small diversions are still made but not published.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 134 111 164 283 26 80 112 238 335 759 375 245
2 133 111 170 286 27 72 112 236 222 762 352 179
3 130 123 175 286 25 60 135 222 158 746 212 185
4 126 136 180 281 27 52 157 200 159 706 150 182
5 127 146 190 260 27 53 160 197 159 796 131 134
6 128 141 182 240 27 56 154 195 159 816 131 97
7 133 137 183 198 27 57 153 193 160 744 118 194
8 130 133 127 194 28 53 157 233 137 744 93 267
9 129 143 47 195 26 73 154 251 107 749 81 269
10 128 156 166 176 31 51 155 229 97 728 84 268
11 128 155 264 145 28 46 156 230 96 607 85 269
12 128 156 258 143 27 49 167 236 81 636 86 268
13 127 158 280 152 28 60 198 235 70 726 86 269
14 129 157 291 154 33 57 226 233 382 724 85 269
15 128 156 290 155 37 55 227 212 1140 731 96 247
16 129 158 290 148 44 55 217 194 1730 737 95 229
17 129 157 290 155 49 53 217 196 1970 807 131 230
18 129 155 290 157 50 51 217 199 2030 850 154 395
19 129 160 293 162 51 50 217 160 2260 862 146 180
20 130 159 305 142 51 49 218 124 2000 950 148 373
21 132 158 292 102 51 52 221 123 2020 1040 242 390
22 132 155 287 105 52 55 219 124 2040 1100 298 391
23 131 158 285 105 54 53 215 127 2070 1100 215 390
24 136 159 285 88 54 59 220 121 2070 991 136 389
25 137 158 286 72 58 61 284 124 2080 904 125 378
26 135 163 284 72 71 59 228 121 2080 906 172 119
27 135 173 285 57 59 61 221 117 1840 779 172 118
28 132 176 284 42 64 72 230 116 1330 536 226 118
29 117 176 284 40 76 77 231 117 1030 382 310 118
30 107 165 284 43 --- 78 235 272 831 405 347 118
31 108 --- 284 34 --- 97 --- 378 --- 405 346 ---
TOTAL 3986 4549 7575 4672 1208 1856 5813 5953 30843 23728 5428 7278
MEAN 129 152 244 151 41.7 59.9 194 192 1028 765 175 243
MAX 137 176 305 286 76 97 284 378 2260 1100 375 395
MIN 107 111 47 34 25 46 112 116 70 382 81 97
AC-FT 7910 9020 15030 9270 2400 3680 11530 11810 61180 47060 10770 14440
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1950 - 2000, BY WATER YEAR (WY)
MEAN 54.3 72.2 68.9 63.2 73.8 220 635 316 182 142 85.5 62.5
MAX 622 291 244 182 300 1567 3329 2906 1154 1272 1555 577
(WY) 1995 1995 2000 1995 1996 1995 1997 1950 1950 1993 1993 1994
MIN 1.92 5.27 4.32 3.64 7.66 7.81 2.07 6.86 5.88 7.28 6.72 .81
(WY) 1956 1956 1980 1956 1956 1955 1953 1959 1958 1959 1977 1955
SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1950 - 2000
ANNUAL TOTAL 197119 102889
ANNUAL MEAN 540 281 164
HIGHEST ANNUAL MEAN 574 1995
LOWEST ANNUAL MEAN 12.8 1991
HIGHEST DAILY MEAN 2560 Apr 9 2260 Jun 19 5410 Apr 20 1996
LOWEST DAILY MEAN 47 Dec 9 25 Feb 3 .00 Sep 8 1950
ANNUAL SEVEN-DAY MINIMUM 104 Jan 5 27 Feb 1 .00 Aug 8 1952
INSTANTANEOUS PEAK FLOW 2330 Jun 19 5460 Apr 20 1996
INSTANTANEOUS PEAK STAGE 29.88 Jun 19 36.46 Apr 20 1996
ANNUAL RUNOFF (AC-FT) 391000 204100 119100
10 PERCENT EXCEEDS 1470 733 326
50 PERCENT EXCEEDS 339 158 47
90 PERCENT EXCEEDS 115 53 9.5
WATER-QUALITY RECORDS
PERIOD OF RECORD.--Water year 1959 to current year.
PERIOD OF DAILY RECORD.--
WATER TEMPERATURE: April 1997 to current year.
SPECIFIC CONDUCTANCE: April 1997 to current year.
INSTRUMENTATION.--Water-quality sensors since April 1997.
REMARKS.--Records good. Interruptions in daily record are due to sensor probe malfunctions and relocation of sensor probe.
EXTREMES FOR PERIOD OF DAILY RECORD.--
WATER TEMPERATURE: Maximum recorded, 28.3°C, July 20, 1998; minimum recorded, 0.3°C, Apr. 16, 1997.
SPECIFIC CONDUCTANCE: Maximum recorded, 1,260 microsiemens, Mar. 6-8, 24, 2000; minimum recorded, 401 microsiemens,
Apr. 14, 1999.
EXTREMES FOR CURRENT YEAR.--
WATER TEMPERATURE: Maximum recorded, 26.4°C, July 10; minimum recorded, 1.0°C, Feb. 10.
SPECIFIC CONDUCTANCE: Maximum recorded, 1,260 microsiemens, Mar. 6-8, 24; minimum recorded, 685 microsiemens, July 17.
WATER-QUALITY DATA, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DIS- DIS- PH PH SPE-
CHARGE, CHARGE, WATER WATER CIFIC SPE- HARD-
IN INST. WHOLE WHOLE CON- CIFIC NESS CALCIUM
CUBIC CUBIC FIELD LAB DUCT- CON- TEMPER- TEMPER- TOTAL DIS-
FEET FEET (STAND- (STAND- ANCE DUCT- ATURE ATURE (MG/L SOLVED
DATE TIME PER PER ARD ARD LAB ANCE AIR WATER AS (MG/L
SECOND SECOND UNITS) UNITS) (US/CM) (US/CM) (DEG C) (DEG C) CACO3) AS CA)
(00060) (00061) (00400) (00403) (90095) (00095) (00020) (00010) (00900) (00915)
OCT
06... 1310 -- 128 -- -- -- 945 10.5 11.0 -- --
07... 1115 133 -- -- -- -- 958 -- 10.4 -- --
26... 0950 135 -- -- -- -- 985 -- 7.5 -- --
NOV
12... 1105 -- 155 -- -- -- 1020 11.5 6.0 -- --
DEC
09... 0940 47 -- -- -- -- 1020 -- 1.8 -- --
JAN
12... 1030 -- 135 -- -- -- 1040 -4.0 2.0 -- --
31... 1200 -- 31 -- -- -- 1230 -- 2.5 -- --
MAR
08... 0940 -- 52 -- -- -- 1270 -- 4.0 -- --
21... 1015 52 -- -- -- -- 1230 -- 5.1 -- --
28... 1325 -- 76 -- -- -- 1130 10.0 7.0 -- --
APR
19... 1210 -- 214 8.8 8.6 1100 1110 5.0 5.5 380 73.0
MAY
23... 1140 -- 126 -- -- -- 1050 -- 13.5 -- --
JUN
28... 0945 -- 1420 -- -- -- 910 17.5 19.5 -- --
JUL
18... 0845 850 -- -- -- -- 762 -- 23.0 -- --
AUG
18... 0855 -- 159 8.1 -- 965 918 18.5 21.0 320 63.0
SEP
07... 1345 194 -- -- -- -- 918 -- 19.4 -- --
ANC SOLIDS,
MAGNE- POTAS- SODIUM UNFLTRD CHLO- FLUO- SOLIDS, RESIDUE
SIUM, SIUM, AD- SODIUM, TIT 4.5 RIDE, RIDE, SULFATE DIS- AT 180
DIS- DIS- SORP- DIS- LAB DIS- DIS- DIS- SOLVED DEG. C
SOLVED SOLVED TION SOLVED (MG/L SOLVED SOLVED SOLVED (TONS DIS-
DATE (MG/L (MG/L RATIO (MG/L SODIUM AS (MG/L (MG/L (MG/L PER SOLVED
AS MG) AS K) AS NA) PERCENT CACO3) AS CL) AS F) AS SO4) DAY) (MG/L)
(00925) (00935) (00931) (00930) (00932) (90410) (00940) (00950) (00945) (70302) (70300)
OCT
06... -- -- -- -- -- -- -- -- -- -- --
07... -- -- -- -- -- -- -- -- -- -- --
26... -- -- -- -- -- -- -- -- -- -- --
NOV
12... -- -- -- -- -- -- -- -- -- -- --
DEC
09... -- -- -- -- -- -- -- -- -- -- --
JAN
12... -- -- -- -- -- -- -- -- -- -- --
31... -- -- -- -- -- -- -- -- -- -- --
MAR
08... -- -- -- -- -- -- -- -- -- -- --
21... -- -- -- -- -- -- -- -- -- -- --
28... -- -- -- -- -- -- -- -- -- -- --
APR
19... 48.0 12.0 2 110 38 380 19.0 .2 210 419 726
MAY
23... -- -- -- -- -- -- -- -- -- -- --
JUN
28... -- -- -- -- -- -- -- -- -- -- --
JUL
18... -- -- -- -- -- -- -- -- -- -- --
AUG
18... 39.0 12.0 2 96.0 39 299 15.0 .2 200 264 616
SEP
07... -- -- -- -- -- -- -- -- -- -- --
SOLIDS,
SUM OF MANGA- MOLYB- SELE- STRON-
CONSTI- ARSENIC IRON, LEAD, LITHIUM NESE, MERCURY DENUM, NIUM, TIUM,
TUENTS, DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS- DIS-
DIS- SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED SOLVED
DATE SOLVED (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L (UG/L
(MG/L) AS AS) AS FE) AS PB) AS LI) AS MN) AS HG) AS MO) AS SE) AS SR)
(70301) (01000) (01046) (01049) (01130) (01056) (71890) (01060) (01145) (01080)
OCT
06... -- -- -- -- -- -- -- -- -- --
07... -- -- -- -- -- -- -- -- -- --
26... -- -- -- -- -- -- -- -- -- --
NOV
12... -- -- -- -- -- -- -- -- -- --
DEC
09... -- -- -- -- -- -- -- -- -- --
JAN
12... -- -- -- -- -- -- -- -- -- --
31... -- -- -- -- -- -- -- -- -- --
MAR
08... -- -- -- -- -- -- -- -- -- --
21... -- -- -- -- -- -- -- -- -- --
28... -- -- -- -- -- -- -- -- -- --
APR
19... 701 5.0 10 1 70.0 20 .1 <1 <1.0 420
MAY
23... -- -- -- -- -- -- -- -- -- --
JUN
28... -- -- -- -- -- -- -- -- -- --
JUL
18... -- -- -- -- -- -- -- -- -- --
AUG
18... 605 8.0 30 <1 70.0 150 .1 1 1.0 410
SEP
07... -- -- -- -- -- -- -- -- -- --
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
OCTOBER NOVEMBER DECEMBER JANUARY
1 12.9 11.9 12.5 7.5 6.1 6.9 3.6 2.9 3.1 2.9 2.6 2.7
2 12.8 11.2 11.9 7.2 5.9 6.3 3.1 2.7 2.9 2.9 2.6 2.7
3 11.8 11.0 11.4 7.0 5.5 6.0 3.3 2.9 3.0 2.8 2.4 2.6
4 12.2 10.7 11.3 6.8 5.7 6.1 3.1 2.5 2.9 2.8 2.4 2.5
5 11.8 10.5 11.0 6.6 5.6 6.0 2.8 2.3 2.5 3.0 2.5 2.7
6 --- --- --- 6.7 5.5 5.9 2.8 2.2 2.4 2.7 2.4 2.5
7 --- --- --- 7.0 5.7 6.1 2.9 2.2 2.4 3.1 2.4 2.7
8 11.9 10.1 10.7 7.0 5.9 6.2 2.9 1.9 2.5 3.4 2.7 2.9
9 11.8 10.2 10.7 6.7 5.8 6.2 2.3 1.8 1.9 3.4 2.8 3.0
10 11.9 10.2 10.8 6.2 5.6 5.9 2.2 1.9 2.0 3.2 2.4 2.8
11 11.6 10.1 10.6 6.5 5.6 5.9 2.5 2.0 2.2 3.0 2.3 2.6
12 10.7 10.2 10.5 6.5 5.5 5.9 2.5 2.0 2.2 2.7 2.2 2.4
13 11.0 9.6 10.2 6.7 5.8 6.1 2.6 2.0 2.2 3.3 2.5 2.8
14 11.1 9.7 10.2 6.4 5.6 5.9 2.3 2.0 2.2 3.3 2.6 2.9
15 11.2 9.9 10.3 6.5 5.5 5.9 2.0 1.4 1.7 3.4 2.4 2.8
16 10.3 9.3 9.7 6.2 5.5 5.8 1.5 1.2 1.3 3.1 2.3 2.6
17 10.3 8.9 9.3 6.2 5.3 5.6 1.6 1.3 1.5 3.5 2.4 2.9
18 9.8 8.9 9.2 5.4 4.5 5.1 2.0 1.5 1.7 3.4 2.6 2.9
19 9.4 8.4 8.9 4.7 4.2 4.4 1.8 1.4 1.6 3.1 2.4 2.7
20 9.9 8.1 8.8 4.8 4.1 4.4 1.7 1.2 1.5 3.4 2.5 2.8
21 9.7 8.6 8.9 5.0 4.2 4.5 2.0 1.6 1.7 3.0 2.4 2.6
22 9.3 7.9 8.5 4.8 4.0 4.4 2.1 1.6 1.9 2.9 2.2 2.6
23 9.1 7.4 8.0 4.5 3.9 4.2 2.3 2.0 2.2 3.3 2.3 2.7
24 9.0 7.5 8.0 4.6 3.7 4.1 2.6 2.2 2.3 3.3 2.5 2.9
25 8.6 7.7 8.0 4.4 3.7 4.0 2.8 2.2 2.4 3.8 2.3 2.9
26 8.6 7.4 7.9 4.1 3.5 3.7 2.6 2.2 2.4 3.6 2.1 2.6
27 8.6 7.3 7.7 3.9 3.3 3.5 2.5 2.1 2.3 3.7 2.4 2.9
28 8.3 6.8 7.3 3.7 3.0 3.3 2.9 2.5 2.6 4.1 2.3 3.0
29 7.7 7.0 7.3 3.5 2.8 3.0 3.0 2.6 2.7 3.8 2.1 2.7
30 8.4 7.0 7.4 3.6 3.0 3.2 3.0 2.6 2.7 3.6 2.0 2.6
31 8.8 6.8 7.5 --- --- --- 3.0 2.6 2.8 3.2 2.2 2.6
MONTH --- --- --- 7.5 2.8 5.2 3.6 1.2 2.2 4.1 2.0 2.7
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
FEBRUARY MARCH APRIL MAY
1 3.8 2.4 2.8 6.3 3.6 4.5 7.4 5.2 6.0 13.0 10.6 11.8
2 5.0 2.2 3.2 6.4 4.0 4.6 6.8 5.6 6.0 13.0 11.5 12.3
3 2.8 1.8 2.3 7.3 3.7 4.9 6.7 5.0 5.8 13.5 11.5 12.4
4 4.1 1.6 2.5 7.7 3.6 5.0 7.2 5.2 6.0 15.1 12.7 13.5
5 3.8 2.0 2.7 8.1 3.8 5.3 7.1 5.8 6.2 16.2 13.1 14.3
6 4.8 1.9 2.9 7.7 4.2 5.3 7.1 5.3 6.0 15.8 13.7 14.8
7 4.4 1.8 2.8 7.8 4.2 5.4 7.4 5.3 6.1 15.6 14.8 15.2
8 4.6 2.2 3.2 5.0 1.3 3.4 7.9 5.6 6.4 16.1 15.2 15.5
9 3.4 1.5 2.4 5.0 1.3 2.8 8.0 5.7 6.6 16.5 14.8 15.4
10 3.1 1.0 1.9 7.1 3.1 4.4 6.6 5.4 6.1 16.3 14.7 15.3
11 3.7 1.4 2.1 6.2 3.6 4.5 7.2 5.3 6.0 15.5 15.2 15.4
12 4.3 1.9 2.7 7.1 3.3 4.5 6.2 5.4 5.7 15.4 14.2 14.9
13 3.5 1.3 2.1 6.9 3.7 4.8 7.4 5.5 6.2 14.5 13.5 13.9
14 4.6 2.2 2.9 5.3 3.0 4.1 6.2 3.9 4.7 14.7 13.2 13.8
15 3.9 1.3 2.7 6.5 2.7 4.0 5.3 3.2 4.2 14.2 13.4 13.7
16 4.6 2.2 3.1 6.3 2.8 4.1 5.9 4.2 4.9 15.5 13.6 14.3
17 4.5 2.8 3.5 5.6 3.1 4.2 6.2 4.6 5.3 15.3 13.7 14.4
18 4.9 2.3 3.4 8.4 3.7 5.3 7.2 5.0 5.9 15.5 12.9 14.1
19 4.7 2.1 3.1 8.1 3.8 5.3 7.3 5.0 5.6 16.5 13.9 14.8
20 5.6 2.7 3.6 5.0 4.2 4.5 7.1 4.7 5.8 15.9 14.1 14.7
21 6.1 2.9 3.9 7.7 4.3 5.4 7.6 5.8 6.5 16.2 14.5 15.3
22 6.5 3.2 4.3 8.7 4.1 5.6 8.7 5.9 7.1 16.1 14.4 15.1
23 5.6 3.4 4.2 7.6 4.3 5.7 10.1 7.2 8.1 15.6 14.2 14.8
24 4.6 4.1 4.3 7.1 4.8 5.8 8.9 7.4 8.0 16.2 14.1 14.9
25 4.4 3.8 4.2 8.3 4.3 5.7 9.3 7.6 8.2 17.0 14.0 15.2
26 4.9 2.8 3.8 7.6 4.6 5.8 9.6 8.0 9.0 16.8 14.1 15.1
27 6.6 3.3 4.4 6.4 4.1 5.1 10.5 9.6 9.9 15.9 14.6 15.2
28 6.2 3.8 4.6 7.7 3.7 5.3 11.6 9.4 10.4 16.9 14.7 15.6
29 5.6 3.7 4.3 8.5 4.6 6.1 11.8 10.3 10.9 16.1 14.9 15.5
30 --- --- --- 8.9 5.3 6.5 11.6 10.6 10.9 17.4 15.6 16.4
31 --- --- --- 6.7 5.3 5.8 --- --- --- 16.9 16.1 16.6
MONTH 6.6 1.0 3.2 8.9 1.3 5.0 11.8 3.2 6.8 17.4 10.6 14.7
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
JUNE JULY AUGUST SEPTEMBER
1 16.8 15.9 16.2 22.9 19.7 20.7 24.8 22.8 23.7 20.6 20.1 20.3
2 17.7 15.6 16.5 23.3 21.4 21.9 25.5 23.6 24.4 20.1 19.7 19.8
3 16.4 15.8 16.1 21.5 21.2 21.3 24.7 23.1 23.8 20.8 19.6 20.0
4 17.9 15.7 16.6 22.3 21.2 21.5 24.9 22.9 23.6 20.2 19.4 19.7
5 18.1 15.9 16.8 23.0 21.4 22.1 24.9 22.9 23.7 19.8 19.1 19.4
6 18.0 15.7 16.6 23.3 22.4 22.8 24.9 22.8 23.7 20.3 18.9 19.4
7 18.7 16.4 17.3 23.8 21.9 22.6 25.7 23.1 24.0 19.5 18.7 19.1
8 20.4 16.5 18.2 24.7 23.4 24.0 25.5 23.3 24.2 19.7 18.8 19.1
9 21.4 18.2 19.4 25.4 23.8 24.6 25.7 22.3 24.0 19.7 19.0 19.2
10 20.7 18.3 19.2 26.4 24.4 25.3 25.3 22.7 23.7 19.3 18.6 18.9
11 21.8 18.3 19.5 25.6 24.1 24.8 25.4 23.1 23.9 19.1 18.5 18.7
12 21.9 18.6 19.8 24.5 23.6 24.1 25.9 23.1 24.4 18.9 18.3 18.5
13 21.4 18.7 19.9 25.8 23.6 24.6 26.2 23.9 24.7 18.5 18.1 18.2
14 20.2 19.1 19.8 26.3 24.7 25.5 25.6 23.7 24.3 18.6 17.8 18.1
15 19.8 19.4 19.6 25.9 22.8 24.4 25.3 23.3 24.1 18.4 17.5 17.8
16 19.4 19.0 19.1 23.7 22.7 23.3 23.6 22.3 22.9 18.6 17.4 17.9
17 19.1 18.8 18.9 24.6 23.1 23.8 23.7 22.3 22.8 18.5 17.8 18.1
18 20.2 19.0 19.3 24.3 23.2 23.7 23.7 21.7 22.5 --- --- ---
19 19.5 18.8 19.0 23.2 22.6 22.8 22.7 21.8 22.1 --- --- ---
20 19.7 19.3 19.5 23.0 22.2 22.6 22.0 21.6 21.7 17.9 17.1 17.6
21 19.4 18.8 19.0 23.4 22.3 22.6 22.2 21.1 21.8 17.1 16.7 16.9
22 19.1 18.6 18.8 22.9 22.0 22.2 22.2 21.5 21.8 16.7 15.3 15.9
23 20.2 18.7 19.3 22.2 21.8 22.0 22.3 21.1 21.6 15.3 14.8 15.0
24 21.3 19.5 20.3 22.4 22.0 22.2 22.6 21.2 21.7 15.0 14.4 14.7
25 20.6 19.2 20.2 22.7 22.2 22.4 23.0 21.4 22.1 14.8 14.1 14.4
26 20.3 19.8 20.0 24.9 22.5 23.5 23.1 21.9 22.5 15.5 13.9 14.5
27 20.5 19.6 20.0 25.7 23.7 24.7 22.2 21.6 21.8 15.3 14.2 14.6
28 20.6 19.6 20.1 25.5 24.5 24.8 22.2 21.6 21.9 15.3 13.9 14.4
29 20.4 19.6 20.0 24.7 22.5 23.8 21.9 21.1 21.5 14.9 13.8 14.2
30 19.7 19.2 19.5 22.9 22.4 22.7 21.5 20.9 21.2 15.2 14.1 14.5
31 --- --- --- 23.7 22.5 22.9 21.2 20.5 20.8 --- --- ---
MONTH 21.9 15.6 18.8 26.4 19.7 23.2 26.2 20.5 22.9 --- --- ---
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
OCTOBER NOVEMBER DECEMBER JANUARY
1 943 930 938 999 988 992 1010 1000 1000 1080 1080 1080
2 954 927 938 1000 992 998 1010 1000 1000 1090 1080 1090
3 940 920 932 1010 993 1000 1010 1000 1000 1100 1090 1090
4 943 922 933 1010 994 1000 1010 998 1010 1100 1100 1100
5 943 931 939 1010 999 1000 1010 999 1000 1110 1100 1100
6 --- --- --- 1020 1010 1020 1000 1000 1000 1120 1110 1110
7 --- --- --- 1020 1010 1020 1020 1000 1010 1120 1120 1120
8 980 972 976 1020 1000 1010 1020 1010 1010 1130 1120 1120
9 982 976 980 1020 995 1010 1020 988 1010 1130 1120 1130
10 984 979 982 1020 996 1010 997 992 995 1140 1130 1130
11 985 980 983 1020 999 1010 996 991 994 1150 1140 1140
12 986 982 984 1030 1020 1020 999 991 995 1150 1140 1150
13 987 980 984 1020 1000 1010 999 994 997 1150 1140 1150
14 986 977 983 1020 1010 1020 1000 996 999 1160 1150 1150
15 986 976 982 1030 999 1020 1010 999 1000 1160 1150 1160
16 986 982 984 1020 1000 1010 1020 1010 1010 1170 1150 1160
17 986 980 984 1020 1010 1010 1020 1010 1010 1170 1160 1160
18 985 979 983 1020 994 1010 1020 1010 1020 1170 1160 1170
19 986 979 983 1020 1010 1020 1030 1020 1020 1180 1170 1170
20 985 978 982 1020 1010 1020 1030 1020 1030 1190 1170 1180
21 984 977 981 1020 999 1010 1040 1030 1040 1190 1180 1190
22 986 977 982 1020 1000 1010 1040 1040 1040 1200 1180 1190
23 987 976 983 1020 1010 1020 1050 1040 1040 1200 1180 1190
24 986 975 982 1020 996 1010 1050 1040 1050 1200 1190 1200
25 984 977 981 1020 1010 1010 1050 1050 1050 1210 1200 1210
26 985 973 980 1020 1000 1010 1060 1050 1050 1220 1200 1210
27 986 976 983 1010 1000 1000 1070 1060 1060 1230 1180 1210
28 990 980 986 1010 999 1000 1070 1060 1070 1240 1180 1220
29 991 981 987 1010 990 1000 1070 1060 1070 1240 1180 1230
30 992 980 988 1000 997 1000 1080 1070 1070 1250 1210 1230
31 997 982 990 --- --- --- 1080 1070 1070 1250 1190 1220
MONTH --- --- --- 1030 988 1010 1080 988 1020 1250 1080 1160
SPECIFIC CONDUCTANCE (MICROSIEMENS/CM AT 25 DEG. C), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
FEBRUARY MARCH APRIL MAY
1 1200 1180 1200 1240 1220 1230 1140 1130 1140 1080 1070 1070
2 1200 1180 1190 1240 1210 1230 1140 1130 1130 1080 1070 1070
3 1210 1190 1200 1250 1210 1230 1130 1100 1110 1080 1070 1070
4 1210 1180 1200 1250 1210 1230 1120 1100 1110 1080 1060 1070
5 1210 1180 1200 1250 1220 1240 1120 1110 1120 1080 1060 1070
6 1210 1180 1200 1260 1220 1240 1120 1100 1110 1080 1040 1060
7 1210 1180 1200 1260 1220 1240 1120 1080 1100 1060 1020 1040
8 1210 1180 1200 1260 1240 1250 1100 1090 1100 1050 1020 1040
9 1220 1190 1210 1250 1180 1210 1100 1090 1100 1040 1020 1040
10 1220 1180 1210 1220 1190 1210 1100 1080 1090 1050 1020 1040
11 1230 1190 1210 1250 1210 1220 1110 1080 1090 1050 1040 1040
12 1220 1190 1200 1250 1210 1240 1110 1090 1100 1040 1030 1040
13 1230 1190 1210 1250 1230 1240 1100 1090 1100 1050 1030 1040
14 1220 1190 1210 1250 1210 1240 1110 1080 1090 1050 1030 1040
15 1230 1200 1210 1250 1210 1230 1090 1070 1080 1050 1040 1040
16 1240 1200 1230 1240 1220 1230 1090 1080 1090 1040 1030 1040
17 1230 1210 1220 1250 1220 1240 1100 1090 1090 1050 1020 1040
18 1240 1220 1230 1240 1200 1230 1110 1080 1090 1050 1020 1040
19 1240 1200 1230 1240 1210 1230 1090 1080 1080 1050 1030 1040
20 1230 1200 1220 1240 1230 1240 1090 1070 1080 1050 1030 1040
21 1230 1200 1220 1240 1190 1220 1090 1080 1080 1050 1040 1040
22 1230 1200 1220 1240 1210 1220 1090 1080 1090 1050 1040 1050
23 1240 1200 1220 1240 1200 1220 1090 1070 1080 1060 1050 1050
24 1230 1190 1210 1260 1190 1220 1090 1080 1080 1060 1050 1050
25 1220 1120 1190 1230 1190 1210 1090 1080 1090 1060 1050 1050
26 1230 779 1080 1200 1160 1170 1090 1080 1090 1060 1050 1050
27 1240 1200 1230 1170 1130 1150 1080 1070 1080 1050 1040 1050
28 1240 1210 1230 1140 1120 1130 1080 1070 1080 1050 1040 1050
29 1240 1220 1230 1140 1120 1130 1080 1070 1070 1050 1020 1040
30 --- --- --- 1140 1120 1130 1080 1070 1070 1040 1020 1030
31 --- --- --- 1140 1130 1140 --- --- --- 1020 1010 1020
MONTH 1240 779 1210 1260 1120 1210 1140 1070 1090 1080 1010 1050
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
JUNE JULY AUGUST SEPTEMBER
1 1010 1010 1010 917 856 876 852 841 847 857 846 848
2 1010 1000 1010 861 843 849 857 846 852 889 849 861
3 1010 1000 1010 850 835 842 855 846 851 928 882 907
4 1010 999 1000 849 829 842 861 849 853 926 910 920
5 1000 997 1000 838 787 821 858 837 850 928 910 921
6 1000 1000 1000 793 775 788 865 845 856 926 901 912
7 1000 1000 1000 813 790 802 866 844 860 926 909 918
8 1060 999 1030 797 777 785 866 850 860 909 899 903
9 1040 1040 1040 783 778 780 869 837 859 908 900 904
10 1040 1040 1040 780 765 773 866 858 863 913 904 907
11 1040 1040 1040 769 745 760 871 865 867 915 908 911
12 1040 1040 1040 782 759 771 868 865 867 919 907 914
13 1050 1040 1040 775 745 765 872 864 867 921 912 917
14 1040 1010 1030 772 746 762 878 859 866 923 917 920
15 1030 1020 1030 768 734 748 871 858 864 926 919 923
16 1030 1020 1020 778 738 760 863 822 850 928 919 923
17 1020 1020 1020 765 685 727 863 853 858 932 922 926
18 1020 1010 1020 771 757 766 880 858 866 --- --- ---
19 1010 1000 1010 779 761 774 890 863 877 --- --- ---
20 1010 999 1000 772 765 769 864 856 861 898 884 894
21 1000 993 999 782 749 765 857 835 846 899 884 895
22 993 979 989 769 757 763 853 838 844 901 895 898
23 994 978 985 782 757 768 858 846 851 906 900 903
24 983 952 968 792 764 777 894 857 873 910 906 907
25 964 946 955 804 785 795 875 848 857 916 907 912
26 969 937 957 787 741 764 858 847 852 918 903 914
27 968 952 960 805 722 747 853 843 849 923 910 916
28 960 926 946 819 805 815 866 850 860 928 917 922
29 938 902 925 825 806 816 895 864 884 930 920 925
30 954 887 915 853 825 841 888 857 867 935 920 927
31 --- --- --- 860 843 853 857 845 851 --- --- ---
MONTH 1060 887 1000 917 685 789 895 822 859 --- --- ---
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