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23 <br />PLATTE RIVER BASIN <br /> <br />06709610 SOUTH PLATTE RIVER BELOW CHATFIELD RESERVOIR, CO <br /> <br />LOCATION.--Lat 39°33'26", long 105°03'27", SE¼, sec. 1, T.6 S., R.69 W., Jefferson County, Hydrologic Unit <br />10190002, 800 ft below the outlet of Chatfield Reservoir. <br /> <br />DRAINAGE AREA AND PERIOD OF RECORD.--3,018 mi²; Jan. 1, 1985 to present. <br /> <br />GAGE.--Data Collection Platform (DCP), shaft encoder and a continuous chart recorder in a formed concrete well <br />and shelter at a concrete broad crested weir. The primary reference gage is an electric tape gage, with <br />no supplemental outside gage. A cableway is used for high water measurement. <br /> <br />REMARKS.--The primary record is hourly averages of 15-minute satellite data with chart back up. Daily max and <br />min values agreed with the corrected chart values to within ±0.02 foot. The record is complete and <br />reliable. Station maintained by Jana Ash and Patrick Tyler and record developed by Jana Ash. <br /> <br />RATING TABLE.--PLACHACO03 USED FROM 01-Oct-2007 TO 30-Sept-2008 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 2007 TO SEPTEMBER 2008 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 118 .13 77 .04 .08 26 34 269 282 391 207 180 <br /> 2 144 .13 77 .08 .08 26 18 237 270 368 148 120 <br /> 3 100 .12 54 .11 .08 56 .12 189 354 414 78 98 <br /> 4 60 .12 11 .11 46 129 .10 190 392 507 154 71 <br /> 5 61 25 34 .10 106 226 .09 129 392 543 175 81 <br /> 6 61 69 75 .10 117 334 .09 70 336 566 206 96 <br /> 7 61 68 112 .10 98 252 .09 79 250 592 230 96 <br /> 8 61 81 124 .09 59 98 15 144 225 590 229 65 <br /> 9 106 93 124 .09 44 98 93 235 215 573 228 22 <br /> 10 129 93 94 .09 44 151 157 243 240 557 134 11 <br /> 11 129 93 110 37 45 230 104 243 266 512 114 31 <br /> 12 138 93 111 73 63 244 39 205 266 413 215 74 <br /> 13 153 93 96 73 79 261 39 142 266 316 229 107 <br /> 14 153 93 84 85 83 235 62 127 266 172 177 106 <br /> 15 55 89 77 99 80 164 113 192 269 51 153 92 <br /> 16 .27 93 76 83 72 163 141 216 258 22 153 73 <br /> 17 .25 93 39 41 72 153 146 153 194 104 65 57 <br /> 18 .25 93 .05 8.5 73 161 156 153 121 293 131 30 <br /> 19 .25 45 .03 .10 73 129 163 211 109 409 285 25 <br /> 20 .21 78 .01 .09 44 39 163 291 185 406 261 25 <br /> 21 .26 155 .03 .09 26 39 257 341 301 391 141 24 <br /> 22 .25 155 .03 .09 49 39 376 418 342 302 14 22 <br /> 23 .19 121 .03 .09 71 39 445 356 425 193 1.5 21 <br /> 24 .19 80 .03 .08 71 39 484 250 468 136 1.2 21 <br /> 25 .19 35 .04 .08 71 39 478 201 442 134 96 21 <br /> 26 .19 .08 .03 .08 56 39 422 157 459 196 246 15 <br /> 27 .19 0 .04 .08 27 48 420 175 431 261 252 10 <br /> 28 .19 0 .03 .08 6.5 49 373 227 342 313 159 10 <br /> 29 .16 .39 .04 .08 13 29 257 285 365 359 96 10 <br /> 30 .13 26 .04 .08 --- 29 209 322 418 357 166 10 <br /> 31 .13 --- .04 .08 --- 29 --- 342 --- 287 225 --- <br /> <br />TOTAL 1532.30 1864.97 1375.47 501.51 1588.74 3593 5164.49 6792 9149 10728 4969.7 1624 <br />MEAN 49.4 62.2 44.4 16.2 54.8 116 172 219 305 346 160 54.1 <br />AC-FT 3040 3700 2730 995 3150 7130 10240 13470 18150 21280 9860 3220 <br />MAX 153 155 124 99 117 334 484 418 468 592 285 180 <br />MIN .13 0 .01 .04 .08 26 .09 70 109 22 1.2 10 <br /> <br />CAL YR 2007 TOTAL 140062 MEAN 384 MAX 2480 MIN 0 AC-FT 277800 <br />WTR YR 2008 TOTAL 48883.18 MEAN 134 MAX 592 MIN 0 AC-FT 96960 <br /> <br />MAX DISCH: 592 CFS AT 12:45 ON Jul. 6, 2008 GH 3.37 FT. SHIFT -0.05 FT. <br />MAX GH: 3.37 FT. AT 12:45 ON Jul. 6, 2008 <br /> <br />FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br />