Salt Lake County Public Works Department Engineering Division #340 BIG COTTONWOOD CREEK @ COTTONWOOD LANE USGS #: 10168800 DAILY DISCHARGE IN CUBIC FEET PER SECOND WATER YEAR OCT 2002 TO SEP 2003 Day OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP ------------------------------------------------------------------------------------------------------------------------------------ 1 6.4 1.0> 1.0> 0 0 0 0 3.0> 215 3.0> 3.0> 7.2 2 6.6 1.0> 1.0> 0 0 0 0 1.0> 169 1.0> 3.0> 5.0> 3 5.0> 1.0> 0 0 0 0 5.2 1.0> 132 1.0> 5.0> 5.0> 4 5.0> 1.0> 0 0 0 0 3.0> 5.0> 100 1.0> 7.5 5.2 5 5.0> 1.0> 0 0 0 0 3.0> 6.2 77 1.0> 7.8 5.0> 6 5.0> 1.0> 0 0 0 0 3.0> 3.0> 60 1.0> 5.9 3.0> 7 5.0> 1.0> 0 0 0 0 1.0> 8.4 52 1.0> 5.0> 6.3 8 5.0> 1.0> 0 0 0 0 1.0> 15 45 1.0> 5.1 6.4 9 5.1 1.0> 0 0 0 0 1.0> 29 41 5.0> 3.0> 5.0> 10 5.2 1.0> 0 0 0 0 1.0> 38 36 1.0> 3.0> 6.7 11 5.3 1.0> 0 0 0 0 1.0> 29 30 1.0> 1.0> 7.5 12 5.1 1.0> 0 0 0 0 5.0> 22 26 3.0> 1.0> 6.6 13 5.0> 1.0> 0 0 0 0 19 21 19 5.0> 1.0> 5.0> 14 5.0> 1.0> 0 0 0 0 27 48 16 3.0> 1.0> 5.0> 15 3.0> 1.0> 0 0 0 0 33 80 12 3.0> 3.0> 5.0> 16 1.0> 1.0> 0 0 0 1.0> 14 113 11 3.0> 1.0> 5.3 17 1.0> 1.0> 0 0 0 0 6.1 133 14 5.0> 3.0> 3.0> 18 1.0> 1.0> 0 0 0 0 9.6 147 11 5.0> 5.0> 1.0> 19 1.0> 1.0> 0 0 0 0 5.0> 134 11 3.0> 5.0> 1.0> 20 1.0> 1.0> 0 0 0 0 5.0> 102 9.1 5.2 5.0> 7.0 21 1.0> 1.0> 0 0 0 0 3.0> 93 18 5.0> 5.0> 5.0> 22 1.0> 1.0> 0 0 0 0 5.0> 112 22 5.0> 5.6 5.0> 23 1.0> 1.0> 0 0 0 0 5.5 149 52 5.0> 5.0> 5.0> 24 1.0> 1.0> 0 0 0 0 3.0> 188 54 1.0> 5.0> 3.0> 25 1.0> 1.0> 0 0 0 0 5.0> 188 54 1.0> 5.0> 5.0> 26 1.0> 1.0> 0 0 0 1.0> 13 209 44 3.0> 3.0> 3.0> 27 1.0> 1.0> 0 0 0 1.0> 3.0> 214 20 5.0> 5.0> 5.0> 28 1.0> 1.0> 0 0 0 0 5.0> 235 13 3.0> 6.8 3.0> 29 1.0> 1.0> 0 0 ------ 0 3.0> 264 12 1.0> 5.5 3.0> 30 1.0> 1.0> 0 0 ------ 0 3.0> 265 7.8 1.0> 3.0> 1.0> 31 1.0> ------ 0 0 ------ 0 ------ 249 ------ 1.0> 6.8r ------ TOTAL 92.7 30.0 2.0 0 0 3.0 191.4 3,104.6 1,382.9 83.2 130.0 139.2 MEAN 2.99 1.00 .065 0 0 .097 6.38 100 46.1 2.68 4.19 4.64 MAX 6.6 1.0 1.0 0 0 1.0 33 265 215 5.2 7.8 7.5 MIN 1.0 1.0 0 0 0 0 0 1.0 7.8 1.0 1.0 1.0 AC-FT 184 60 4.0 0 0 6.0 380 6,160 2,740 165 258 276 CAL YEAR 2002 TOTAL 6,730.20 MEAN 18.4 MAX 243 MIN 0 AC-FT 13,350 WTR YEAR 2003 TOTAL 5,159.00 MEAN 14.1 MAX 265 MIN 0 AC-FT 10,230 > Actual value is known to be less than the value shown