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 1990 TO SEP 1991 Day OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 9.6 19 6.3 8.3 8.4 9.2 12 28 215 56 11 12 2 17 20 6.3 8.5 8.7 9.6 13 31 230 57 11 12 3 18 21 6.3 9.0 8.8 9.7 17 19 242 53 10 11 4 13 19 6.3 9.4 8.8 10 18 17 263 50 11 12 5 8.4 20 6.3 9.2 9.0 12 22 16 302 47 14 13 6 8.8 19 6.3 8.8 9.4 10 34 18 306 46 13 14 7 9.1 19 6.3 8.8 9.4 9.0 38 21 326 45 13 25 8 9.2 21 6.3 8.8 9.4 8.3 23 75 311 41 12 35 9 16 21 6.3 8.7 9.7 8.0 17 115 282 39 12 29 10 16 20 6.2 8.3 9.9 7.9 16 75 286 36 12 20 11 7.3 19 5.8 8.3 10 8.7 14 58 286 31 12 18 12 7.8 19 5.8 8.3 10 8.8 12 47 292 25 13 14 13 7.8 19 6.0 8.3 11 8.5 11 42 310 23 11 12 14 7.8 13 5.9 8.3 11 8.3 11 50 270 22 11 11 15 7.8 6.8 5.9 8.6 11 8.3 12 65 221 24 12 11 16 7.8 7.7 6.3 8.5 11 8.3 16 95 197 20 13 11 17 7.8 8.0 6.7 8.3 12 8.3 17 130 188 20 12 11 18 7.8 8.3 6.8 8.3 10 8.3 16 138 170 22 12 11 19 17 8.3 7.2 8.3 8.6 8.8 15 126 152 19 13 11 20 9.7 8.8 6.9 7.9 8.3 9.0 16 146 153 17 14 12 21 7.1 8.3 6.7 7.3 8.2 9.4 18 179 128 14 14 13 22 6.6 7.8 6.3 7.3 8.3 9.4 19 198 114 14 13 13 23 6.3 7.8 5.7 7.8 8.3 9.4 17 202 106 14 14 13 24 6.4 7.4 5.1 8.3 8.3 9.7 16 215 100 12 15 13 25 6.8 7.3 4.2 8.2 8.3 11 22 264 94 12 16 13 26 7.3 7.6 5.4 8.1 8.3 10 25 286 84 12 15 13 27 6.4 6.8 9.0 8.8 8.3 11 25 256 69 11 16 13 28 6.8 6.8 9.0 8.8 8.5 10 24 241 60 11 15 13 29 6.5 6.8 8.0 8.5 ------ 11 24 248 61 11 12 11 30 14 6.6 7.6 7.9 ------ 11 24 244 57 10 12 11 31 19 ------ 7.9 8.5 ------ 11 ------ 222 ------ 11 11 ------ TOTAL 306.9 390.1 201.1 260.4 260.9 291.9 564 3,867 5,875 825 395 431 MEAN 9.90 13.0 6.49 8.40 9.32 9.42 18.8 125 196 26.6 12.7 14.4 MAX 19 21 9.0 9.4 12 12 38 286 326 57 16 35 MIN 6.3 6.6 4.2 7.3 8.2 7.9 11 16 57 10 10 11 AC-FT 609 774 399 517 517 579 1,120 7,670 11,650 1,640 783 855 CAL YEAR 1990 TOTAL* 898.1 MEAN 9.76 MAX 21 MIN 4.2 AC-FT 1,780 WTR YEAR 1991 TOTAL 13,668.3 MEAN 37.4 MAX 326 MIN 4.2 AC-FT 27,110