Salt Lake County Public Works Department Engineering Division #320 BIG COTTONWOOD CREEK @ CANYON MOUTH USGS #: 10168499 DAILY DISCHARGE IN CUBIC FEET PER SECOND WATER YEAR OCT 2003 TO SEP 2004 Day OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP ------------------------------------------------------------------------------------------------------------------------------------ 1 6.0 6.5 5.8 6.0 7.1 6.3 20 24 67 26 11 8.1 2 6.6 6.3 5.8 6.3 5.8 6.7 26 35 82 24 9.6 8.1 3 6.3 6.8 5.8 6.2 5.8 7.3 37 58 116 21 9.6 8.4 4 6.3 7.3 5.8 6.0 5.8 7.2 36 95 148 19 9.7 8.0 5 6.3 6.3 5.8 5.9 5.8 7.0 33 139 156 16 8.5 8.2 6 6.3 6.3 5.8 5.9 6.7 6.8 34 164 160 13 7.7 8.2 7 6.3 6.1 6.1 6.0 8.8 6.8 39 162 163 12 7.5 7.6 8 6.5 6.1 6.2 5.8 7.5 7.5 48 158 164 7.9 7.3 7.6 9 6.3 6.0 6.2 5.8 7.3 8.5 42 158 155 7.3 7.5 7.7 10 7.2 7.0 5.9 5.9 7.1 9.8 35 160 134 7.4 7.8 7.7 11 6.3 5.9 5.8 5.9 6.7 8.0 40 154 96 6.9 7.5 7.7 12 6.3 6.1 5.8 6.0 6.1 7.9 17 114 73 6.8 7.3 7.8 13 6.3 6.0 5.8 5.8 5.7 8.0 15 88 62 6.9 7.5 7.8 14 6.7 6.2 6.0 6.0 6.1 8.6 18 65 70 6.7 7.8 7.7 15 7.0 5.8 5.9 6.3 5.6 9.2 17 54 82 9.7 7.7 7.7 16 7.0 6.0 5.6 6.1 5.5 9.4 13 53 81 6.5 7.7 7.7 17 7.1 5.9 5.8 6.1 5.6 10 11 72 78 7.1 7.8 8.7 18 7.4 5.8 5.8 6.2 7.2 11 13 102 69 7.1 7.8 9.5 19 7.3 5.8 5.8 6.5 7.9 14 11 112 72 5.9 7.8 16 20 7.5 5.8 5.8 6.7 6.6 18 11 116 72 7.6 7.8 27 21 7.3 5.8 5.9 6.4 6.3 23 12 105 74 7.9 7.8 8.0 22 7.7 5.7 5.9 6.4 6.2 33 12 103 63 7.8 7.8 6.8 23 8.0 6.1 5.8 7.5 6.3 46 12 87 56 8.9 7.7 5.8 24 7.3 8.2 5.8 5.9 6.3 50 12 79 50 7.4 9.0 5.3 25 7.0 7.4 6.3 5.9 6.3 35 12 69 48 8.8 8.9 5.3 26 6.3 5.9 6.1 5.9 6.7 42 14 58 49 8.7 8.8 5.3 27 6.9 5.8 5.8 5.9 6.6 27 21 59 44 7.7 8.8 5.3 28 8.1 5.8 6.1 5.8 6.8 18 31 94 38 7.5 8.8 5.3 29 6.7 5.8 6.0 6.3 6.7 16 29 119 35 7.3 9.9 5.4 30 7.1 5.8 6.1 6.2 ------ 14 23 88 31 8.7 9.6 5.3 31 6.7 ------ 6.1 6.0 ------ 12 ------ 71 ------ 10 8.4 ------ TOTAL 212.1 186.3 183.2 189.6 188.9 494.0 694 3,015 2,588 315.5 258.4 245.0 MEAN 6.84 6.21 5.91 6.12 6.51 15.9 23.1 97.3 86.3 10.2 8.34 8.17 MAX 8.1 8.2 6.3 7.5 8.8 50 48 164 164 26 11 27 MIN 6.0 5.7 5.6 5.8 5.5 6.3 11 24 31 5.9 7.3 5.3 AC-FT 421 370 363 376 375 980 1,380 5,980 5,130 626 513 486 CAL YEAR 2003 TOTAL 7,381.10 MEAN 20.2 MAX 288 MIN 5.4 AC-FT 14,640 WTR YEAR 2004 TOTAL 8,570.00 MEAN 23.4 MAX 164 MIN 5.3 AC-FT 17,000