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<br /> <br />PLATTE RIVER BASIN <br /> <br />06729500 SOUTH BOULDER CREEK NEAR ELDORADO SPRINGS, CO <br /> <br />LOCATION.--Lat 39°55'52", long 105°17'43", in SE¼ sec. 26, T.l S., R.71 W., Boulder County, Hydrologic <br />Unit 10190005, on left bank 0.2 mi downstream from South Draw, 1.0 mi west of Eldorado Springs, 1.8 <br />mi downstream from South Boulder diversion canal, 5.0 mi south of Boulder, and 6.7 mi downstream <br />from Gross Reservoir. <br /> <br />DRAINAGE AREA.--109 mi². <br /> <br />GAGE.--Graphic water stage recorder and Sutron High Data Rate (HDR) satellite monitoring DCP in metal box <br />shelter and corrugated metal pipe well. Supplemental outside chain gage. The data collection <br />platform (DCP) is the primary record having the graphic chart as a backup. <br /> <br />REMARKS.--Record is complete and reliable except for the following periods: December 11, 2002 – March 11: <br />Station closed for winter. Chart record had a slow clock, which had to be adjusted at visits. The <br />record is good, except for the following days which were estimated with bi-weekly measurements while <br />the station was shut down for the winter: December 11, 2002 through March 11, 2003. Also, the high <br />flows May 23 to June 3, including the peak, are Fair due to lack of good definition by measurements. <br />Station maintained and record developed by M.L.Cunning. <br /> <br />RATING TABLE.--BOCELSCO22 USED FROM 01-OCT-2002 TO 24-MAY-2003 <br /> BOCELSCO23 USED FROM 24-MAY-2003 TO 03-OCT-2003 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 9.9 6.4 15 5.5 9.1 7.9 65 171 456 209 59 37 <br /> 2 17 5.2 15 5.1 9.7 7.9 79 169 459 198 60 28 <br /> 3 22 6.6 15 4.7 10 7.9 84 166 394 182 50 34 <br /> 4 22 13 16 4.3 11 7.9 84 163 308 175 43 42 <br /> 5 22 6.7 15 4 12 7.9 77 160 249 163 41 43 <br /> 6 22 9.8 16 3.6 12 7.9 71 143 211 156 39 43 <br /> 7 22 9.5 16 3.2 13 7.9 68 128 191 142 40 43 <br /> 8 22 9.5 16 2.9 13 8.3 61 128 185 126 40 43 <br /> 9 22 9.5 16 2.5 12 9.1 61 123 186 120 40 43 <br /> 10 23 9.5 16 2.3 12 9.7 72 123 190 113 36 45 <br /> 11 13 9.5 16 2.3 12 9.9 90 122 196 110 33 44 <br /> 12 13 16 15 2.5 11 9.5 96 123 202 107 30 44 <br /> 13 13 11 14 2.7 11 10 99 121 207 102 28 43 <br /> 14 15 14 14 2.9 11 13 130 130 207 95 29 42 <br /> 15 8.9 15 13 3.1 10 16 164 167 207 87 29 37 <br /> 16 8.2 13 12 3.3 9.9 16 165 209 206 85 31 29 <br /> 17 8.2 13 12 3.5 9.5 18 169 183 240 85 36 27 <br /> 18 8 14 11 3.7 9.2 21 165 170 287 89 47 25 <br /> 19 8.1 16 11 3.9 8.9 28 167 229 264 89 35 23 <br /> 20 7.9 16 10 4.1 8.4 27 167 299 231 89 34 23 <br /> 21 8 16 10 4.3 8.4 22 154 309 220 86 35 23 <br /> 22 8 16 9.5 4.5 8.4 23 139 327 210 83 36 23 <br /> 23 8.4 16 9 4.7 8.4 28 133 365 231 75 37 23 <br /> 24 8.5 16 8.6 4.7 8.4 30 137 429 253 70 36 22 <br /> 25 8.4 16 8.1 4.9 8.4 29 139 471 257 67 35 19 <br /> 26 8.3 16 7.6 5.4 8.4 42 142 491 234 64 33 18 <br /> 27 8.2 16 7.4 5.9 8.4 49 140 499 204 69 34 17 <br /> 28 7.5 16 7.2 6.6 8.2 40 158 525 195 74 35 17 <br /> 29 7.3 16 6.8 7.2 --- 35 176 589 195 76 36 16 <br /> 30 8.8 16 6.3 7.8 --- 34 173 639 202 55 45 18 <br /> 31 8.4 --- 5.9 8.4 --- 42 --- 520 --- 56 38 --- <br /> <br />TOTAL 397 383.2 370.4 134.5 281.7 624.8 3625 8391 7277 3297 1180 934 <br />MEAN 12.8 12.8 11.9 4.3 10.1 20.2 121 271 243 106 38 31 <br />AC-FT 787 760 735 267 559 1240 7190 16640 14430 6540 2340 1850 <br />MAX 23 16 16 8.4 13 49 176 639 459 209 60 45 <br />MIN 7.3 5.2 5.9 2.3 8.2 7.9 61 121 185 55 28 16 <br /> <br />WTR YR 2003 TOTAL 26895.6 MEAN 73.7 MAX 639 MIN 2.3 AC-FT 53350 <br /> <br />MAX DISCH: 705 CFS AT 12:15 ON May. 30, 2003 GH 3.56 FT. SHIFT 0.03 FT. <br />MAX GH: 3.56 FT. AT 12:15 ON May. 30, 2003 <br /> <br />FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br /> <br />0 <br />200 <br />400 <br />600 <br />800 <br />OctNovDecJanFebMarAprMayJunJulAugSep