214 RIVER BASIN--Continued

0529980005299800 WEST WEST BRANCH BRANCH LAC QUI LAC PARLE QUI PARLE RIVER RIVER AT DAWSON, AT DAWSON, MN—Continued MN ° ° 1⁄ 1⁄ LOCATION.--Lat 44 55'45", long 96 03'09", in SW 4NE 4 sec. 21, T.117 N., R.43 W., Lac qui Parle County, Hydrologic Unit 07020003, on left bank 5 ft downstream from Diagonal St. bridge in Dawson and 1.7 mi upstream from confluence with the . DRAINAGE AREA.--474 mi2. PERIOD OF RECORD.--April 2001 to September 2003 (discontinued). GAGE.--Water-stage recorder. REMARKS.--Records fair to poor except those for estimated daily discharges, which are poor.

DISCHARGE, CUBIC FEET PER SECOND WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 2.8 20 12 7.5 2.7 1.7 46 47 39 13 e1.6 <0.10 2 3.4 17 13 7.4 3.1 1.7 49 45 40 11 e1.0 <0.10 3 4.3 20 12 7.3 3.4 1.5 50 43 39 7.5 e0.69 <0.10 4 6.0 16 11 7.3 3.2 1.5 47 41 40 7.3 0.49 <0.10 5 5.9 16 9.4 7.7 2.7 1.3 41 42 41 7.0 0.51 <0.10 6 10 16 9.3 7.1 2.5 1.2 38 48 40 6.7 0.50 <0.10 7 17 16 9.0 7.3 2.2 1.3 34 57 40 6.4 0.43 <0.10 8 19 15 8.7 7.9 2.4 1.2 36 62 40 6.6 0.37 <0.10 9 17 15 8.2 8.3 2.3 1.1 34 67 52 8.5 0.39 <0.10 10 14 15 8.4 7.7 2.2 1.1 34 76 57 7.3 0.45 <0.10 11 13 14 8.7 7.6 2.0 1.1 34 85 50 e6.7 0.41 0.21 12 15 13 8.8 6.8 2.1 1.3 37 90 45 e6.4 0.39 0.30 13 16 17 9.3 6.4 2.0 1.4 35 102 41 e5.6 0.34 0.30 14 16 16 9.8 6.3 2.0 2.7 37 106 37 e5.2 0.26 0.27 15 19 16 10 5.9 2.0 9.8 38 130 32 e5.3 0.19 0.12 16 17 15 11 5.7 2.0 96 41 139 27 e4.9 0.15 <0.10 17 18 14 12 5.3 1.9 342 46 132 23 e3.9 0.14 <0.10 18 18 15 13 5.2 2.1 336 57 115 21 e3.5 0.13 0.15 19 15 16 12 4.9 2.1 284 81 106 18 e2.9 0.11 0.13 20 16 16 13 4.7 2.4 191 110 95 13 e5.4 0.12 0.10 21 16 16 13 4.4 2.6 141 137 86 12 e5.9 0.12 <0.10 22 15 15 13 3.7 2.4 104 132 81 13 e5.5 0.15 <0.10 23 14 15 12 2.7 2.0 116 115 78 12 e4.7 0.20 <0.10 24 14 15 11 2.2 1.7 125 95 77 15 e3.9 0.29 <0.10 25 15 13 9.9 2.1 1.5 104 80 71 17 e3.4 <0.10 <0.10 26 16 13 8.9 1.9 1.5 83 69 68 15 e2.9 <0.10 <0.10 27 17 14 8.3 1.8 1.6 73 62 63 16 e2.6 <0.10 <0.10 28 18 12 8.1 2.1 1.6 71 55 58 16 e2.3 <0.10 <0.10 29 19 12 8.1 2.2 --- 60 51 53 15 e2.0 <0.10 <0.10 30 20 11 8.2 2.1 --- 46 48 46 13 e1.8 <0.10 <0.10 31 21 --- 7.8 2.6 --- 45 --- 41 --- e1.7 <0.10 --- TOTAL 447.4 454 316.9 162.1 62.2 2,246.9 1,769 2,350 879 167.8 10.13 3.78 MEAN 14.4 15.1 10.2 5.23 2.22 72.5 59.0 75.8 29.3 5.41 0.33 0.13 MAX 21 20 13 8.3 3.4 342 137 139 57 13 1.6 0.30 MIN 2.8 11 7.8 1.8 1.5 1.1 34 41 12 1.7 0.10 0.10 AC-FT 887 901 629 322 123 4,460 3,510 4,660 1,740 333 20 7.5 CFSM 0.03 0.03 0.02 0.01 0.00 0.15 0.12 0.16 0.06 0.01 0.00 0.00 IN. 0.04 0.04 0.02 0.01 0.00 0.18 0.14 0.18 0.07 0.01 0.00 0.00 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2001 - 2003, BY WATER YEAR (WY) MEAN 11.8 18.8 21.4 11.3 12.4 56.9 153 183 147 27.1 9.87 4.58 MAX 14.4 22.4 32.6 17.3 22.6 72.5 247 351 374 65.2 17.7 9.55 (WY) (2003) (2002) (2002) (2002) (2002) (2003) (2002) (2001) (2001) (2001) (2002) (2001) MIN 9.08 15.1 10.2 5.23 2.22 41.3 59.0 75.8 29.3 5.41 0.33 0.13 (WY) (2002) (2003) (2003) (2003) (2003) (2002) (2003) (2003) (2003) (2003) (2003) (2003)

MINNESOTA RIVER BASIN--Continued 215

05299800 WEST BRANCH LAC QUI PARLE RIVER AT DAWSON, MN—Continued

SUMMARY STATISTICS FOR 2002 CALENDAR YEAR FOR 2003 WATER YEAR WATER YEARS 2001 - 2003 ANNUAL TOTAL 16,962.44 8,869.21 ANNUAL MEAN 46.5 24.3 36.4 HIGHEST ANNUAL MEAN 48.5 2002 LOWEST ANNUAL MEAN 24.3 2003 HIGHEST DAILY MEAN 723 Apr 1 342 Mar 17 5,050 Apr 13, 2001 LOWEST DAILY MEAN 0.68 Aug 3 a <0.10 Aug 25 b <0.10 Aug 25, 2003 ANNUAL SEVEN-DAY MINIMUM 1.7 Aug 1 a <0.10 Aug 25 b <0.10 Aug 25, 2003 MAXIMUM PEAK FLOW 393 Mar 17 5,150 Apr 13, 2001 MAXIMUM PEAK STAGE 33.65 Mar 17 41.03 Apr 13, 2001 INSTANTANEOUS LOW FLOW c0.02 Sep 4 c0.02 Sep 4, 2003 ANNUAL RUNOFF (AC-FT) 33,640 17,590 26,380 ANNUAL RUNOFF (CFSM) 0.098 0.051 0.077 ANNUAL RUNOFF (INCHES) 1.33 0.70 1.04 10 PERCENT EXCEEDS 130 70 101 50 PERCENT EXCEEDS 16 9.4 15 90 PERCENT EXCEEDS 4.1 0.14 1.4

a Many days. b Many days in 2003. c Minimum observed, measurement of flow. e Estimated. < Actual value is known to be less than the value shown

1,000

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DISCHARGE, 5

IN CUBIC FEET PER SECOND 2

1

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0.1 O N D J F M A M J J A S 2002 2003