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6 <br /> <br />PLATTE RIVER BASIN <br /> <br />06706000 NORTH FORK SOUTH PLATTE RIVER BELOW GENEVA CREEK, AT GRANT, CO <br /> <br />LOCATION.--Lat 39°27'26", long 105°39'29" in NW¼ sec. 10, T.7 S., R.74 W., Park County, Hydrologic Unit <br />10190002, on left bank at Grant, 1,550 ft downstream from Geneva Creek, and 1.3 mi downstream from <br />east portal of Harold D. Roberts tunnel. <br /> <br />DRAINAGE AREA AND PERIOD OF RECORD.--127 mi²; 1948 to present. <br /> <br />GAGE.--Water-stage recorder with satellite telemetry in a wooden shelter at a concrete control section. <br />Station is owned and maintained by the Denver Water Dept. Satellite telemetry is maintained by the <br />U.S. Army Corps of Engineers and the USGS. <br /> <br />REMARKS.--The primary record is hourly data taken from satellite monitoring with chart back up. It is <br />complete. The shaft encoder was accurate to ± 0.01 ft. The record is complete and reliable. <br />Rapid changes in stage are caused by the regulation of Roberts Tunnel, ½ mile upstream. When <br />Roberts tunnel is operating, the gage is free from ice. The record is good. Record developed by <br />Rodger Burcher. <br /> <br />RATING TABLE.--PLAGRACO12 USED FROM 01-OCT-2001 TO 30-SEP-2002 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 328 83 130 126 127 128 135 350 355 518 374 16 <br /> 2 274 73 133 129 126 126 138 315 295 357 374 15 <br /> 3 202 73 134 129 126 126 145 288 239 302 374 29 <br /> 4 169 72 133 129 126 126 145 320 252 332 386 52 <br /> 5 172 71 133 129 126 126 141 350 255 348 332 62 <br /> 6 173 89 131 129 126 126 196 380 249 282 300 61 <br /> 7 173 122 132 129 126 126 244 402 244 284 297 62 <br /> 8 173 148 130 129 126 127 242 402 274 327 298 63 <br /> 9 172 148 129 129 126 126 236 393 295 360 295 66 <br /> 10 175 85 129 129 126 126 231 409 295 383 291 76 <br /> 11 150 91 129 129 125 126 226 401 290 382 288 69 <br /> 12 136 127 129 129 126 126 225 372 322 381 286 70 <br /> 13 134 124 127 130 126 128 224 340 347 378 286 71 <br /> 14 136 124 129 129 126 128 276 347 346 377 285 68 <br /> 15 138 122 129 129 126 126 308 379 345 377 273 65 <br /> 16 160 121 129 129 126 126 309 403 345 374 215 65 <br /> 17 221 121 129 129 126 125 265 319 343 366 138 105 <br /> 18 268 122 129 129 126 123 223 224 339 367 116 139 <br /> 19 286 118 129 129 126 123 213 226 318 365 116 146 <br /> 20 288 116 129 129 126 123 213 246 282 366 117 121 <br /> 21 289 115 129 129 126 123 210 292 293 370 98 95 <br /> 22 315 123 129 129 126 125 245 285 285 370 84 94 <br /> 23 327 104 127 129 127 127 311 281 281 324 84 92 <br /> 24 330 88 126 129 129 126 346 279 326 280 110 92 <br /> 25 286 92 126 129 129 125 347 257 357 377 145 92 <br /> 26 212 89 126 129 129 105 345 217 374 380 154 97 <br /> 27 172 88 126 129 129 113 347 198 413 377 126 98 <br /> 28 173 88 126 129 129 127 345 219 524 376 73 98 <br /> 29 172 92 126 129 --- 129 347 238 617 374 18 97 <br /> 30 137 116 126 129 --- 130 350 239 614 374 18 92 <br /> 31 100 --- 126 129 --- 131 --- 308 --- 374 16 --- <br /> <br />TOTAL 6441 3145 3995 3997 3544 3878 7528 9679 10114 11202 6367 2368 <br />MEAN 208 105 129 129 127 125 251 312 337 361 205 79 <br />AC-FT 12780 6240 7920 7930 7030 7690 14930 19200 20060 22220 12630 4700 <br />MAX 330 148 134 130 129 131 350 409 617 518 386 146 <br />MIN 100 71 126 126 125 105 135 198 239 280 16 15 <br /> <br />WTR YR 2002 TOTAL 72258 MEAN 198 MAX 617 MIN 15 AC-FT 143300 <br /> <br />MAX DISCH: 623 CFS AT 22:30 ON Jun. 28, 2002 GH 1.85 FT. SHIFT 0 FT. <br />MAX GH: 1.85 FT. AT 22:30 ON Jun. 28, 2002 <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 />OctNovDec JanFebMarAprMay JunJulAugSep <br />