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 1999 TO SEP 2000 Day OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP ------------------------------------------------------------------------------------------------------------------------------------ 1 33 30 7.7 6.2 5.7 7.1 7.2 56 135 9.8 7.3 5.2 2 33 23 6.6 6.5 6.0 6.8 7.3 72 116 9.0 7.8 4.8 3 34 19 13 5.8 5.9 7.3 8.1 91 111 8.7 7.3 4.5 4 33 15 6.7 6.0 5.8 8.1 11 123 109 7.7 12 4.5 5 33 14 5.4 6.1 5.3 8.6 27 136 106 7.2 9.7 4.5 6 32 12 6.0 6.6 5.3 7.6 27 120 94 8.9 8.3 4.5 7 34 12 7.4 5.7 5.3 7.4 26 119 84 11 7.3 4.5 8 32 11 6.8 5.4 5.5 7.1 26 102 81 7.2 6.5 4.5 9 30 10 7.4 5.9 5.8 7.1 31 79 72 7.3 7.4 4.5 10 29 9.9 6.4 6.0 5.6 6.9 26 74 45 9.1 7.5 4.5 11 28 9.4 6.1 6.3 6.4 6.6 19 86 39 7.1 7.4 4.5 12 27 9.4 5.9 6.4 6.1 6.8 19 57 35 6.8 7.3 5.4 13 28 8.8 6.5 5.8 6.4 6.9 24 45 32 7.0 7.3 5.3 14 27 8.8 6.3 5.8 8.8 7.2 40 38 31 7.2 7.3 4.5 15 27 8.3 6.9 5.8 13 6.8 33 40 29 7.2 7.5 4.5 16 27 8.3 5.9 6.5 6.9 7.2 22 43 27 7.1 8.1 4.6 17 27 9.4 5.8 7.3 6.3 7.1 19 40 23 7.1 8.2 4.5 18 27 10 5.8 8.7 6.1 6.9 34 41 20 6.8 7.8 4.6 19 27 9.4 5.8 11 6.2 7.2 10 47 18 6.8 10 4.7 20 26 9.2 5.4 6.1 6.1 7.3 8.3 60 17 6.8 8.1 4.6 21 27 7.9 5.5 6.4 6.4 6.8 10 81 15 6.8 7.8 4.9 22 26 8.0 6.0 5.8 8.0 7.4 15 120 12 7.3 7.3 5.2 23 27 8.6 6.0 5.6 8.6 7.5 20 175 12 7.3 7.9 9.2 24 28 12 5.8 5.5 8.6 7.3 21 206 11 7.4 7.5 7.0 25 30 8.5 5.3 6.5 7.2 7.9 18 206 10 13 7.0 6.3 26 30 9.9 5.7 8.2 6.8 9.7 23 224 8.7 12 7.2 6.0 27 30 9.5 5.8 5.9 6.8 11 40 178 7.9 9.4 7.1 5.9 28 30 8.6 5.8 6.7 7.8 11 68 191 7.7 8.3 6.1 4.9 29 31 8.2 9.5 6.8 6.9 7.8 76 213 7.6 6.8 4.9 4.9 30 30 8.1 12 6.7 ------ 7.3 58 196 12 6.8 7.4 4.9 31 30 ------ 6.3 6.2 ------ 6.9 ------ 166 ------ 6.8 21 ------ TOTAL 913 336.2 207.5 200.2 195.6 234.6 773.9 3,425 1,327.9 247.7 251.3 152.4 MEAN 29.5 11.2 6.69 6.46 6.74 7.57 25.8 110 44.3 7.99 8.11 5.08 MAX 34 30 13 11 13 11 76 224 135 13 21 9.2 MIN 26 7.9 5.3 5.4 5.3 6.6 7.2 38 7.6 6.8 4.9 4.5 AC-FT 1,810 667 412 397 388 465 1,540 6,790 2,630 491 498 302 CAL YEAR 1999 TOTAL 25,302.3 MEAN 69.3 MAX 371 MIN 5.3 AC-FT 50,190 WTR YEAR 2000 TOTAL 8,265.3 MEAN 22.6 MAX 224 MIN 4.5 AC-FT 16,390