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<br /> <br /> <br /> 7 <br /> <br /> PLATTE RIVER BASIN <br /> <br /> 06707500 SOUTH PLATTE RIVER AT SOUTH PLATTE, CO <br /> <br />LOCATION.--Lat 39°24'33", long 105°10'10", SE¼ sec.25, T.7 S., R.70 W., Jefferson County, Hydrologic Unit 10190002, on <br />left bank at South Platte, 200 ft downstream from bridge on State Highway 75, and 400 ft downstream from North <br />Fork. <br /> <br />DRAINAGE AREA.--2,579 mi2. <br /> <br />GAGE.--Graphic water-stage recorder with satellite telemetry in a wooden shelter on a natural channel. Datum of gage is <br />6,078.43 ft above mean sea level. Road access is controlled by the U.S. Forest Service and the Denver Water <br />Dept. Satellite telemetry is maintained by the U. S. Army Corps of Engineers and the USGS. <br /> <br />REMARKS.-Hourly record from satellite data was complete and reliable, except for the ice period. From Dec.21, 1990 to <br />Feb.22, 1991 the record was ice affected, and the gage was entirely frozen (no record) during Dec.23-27,1990. <br />Discharge was estimated for this period from Denver Water Dept. records for computed inflow to Strontia Springs <br />Res. Record is good, except for the ice period, which is fair. Station is maintained and records developed by <br />Robert Cooper. <br /> <br />RATING TABLE.--PLASPLCO14 USED FROM 01-OCT-1990 TO 30-SEP-1991 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 1990 TO SEPTEMBER 1991 <br /> MEAN VALUES <br /> <br />DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 372 390 279 287 293 238 217 310 577 746 629 564 <br /> 2 378 359 258 264 270 249 232 272 669 654 631 560 <br /> 3 453 184 248 253 245 244 232 288 628 756 713 579 <br /> 4 424 156 267 219 243 254 220 351 602 753 891 592 <br /> 5 412 305 282 306 230 256 234 357 644 737 868 605 <br /> 6 406 173 266 283 231 227 337 357 794 726 858 674 <br /> 7 407 136 259 350 247 199 357 327 907 729 912 671 <br /> 8 410 164 260 355 232 196 347 317 624 767 833 668 <br /> 9 365 172 262 343 207 197 261 362 570 768 639 655 <br /> 10 307 233 262 309 224 205 255 409 552 698 631 653 <br /> 11 192 305 264 293 221 208 253 394 577 630 630 674 <br /> 12 171 303 267 294 222 208 258 399 578 647 632 762 <br /> 13 166 302 267 313 215 220 244 346 554 630 595 761 <br /> 14 168 302 262 290 196 222 253 426 594 616 582 694 <br /> 15 162 283 254 267 204 220 255 624 566 581 616 648 <br /> 16 203 282 274 255 204 205 264 554 579 564 604 655 <br /> 17 264 275 267 250 187 204 270 381 536 639 648 682 <br /> 18 265 277 255 256 173 205 278 373 502 636 658 669 <br /> 19 267 270 249 263 193 210 272 513 474 658 690 595 <br /> 20 245 245 207 252 203 251 270 495 658 664 681 499 <br /> 21 224 239 247 245 190 248 270 446 668 662 589 533 <br /> 22 231 240 249 249 199 252 274 379 679 687 544 527 <br /> 23 214 239 272 252 205 249 315 415 672 664 542 514 <br /> 24 177 246 275 283 208 250 312 464 636 631 627 428 <br /> 25 173 243 270 290 232 252 302 431 669 678 661 502 <br /> 26 203 240 275 285 245 270 305 482 753 901 664 511 <br /> 27 246 245 290 287 245 290 293 523 836 898 632 511 <br /> 28 241 212 386 280 238 253 285 488 828 807 653 468 <br /> 29 252 219 332 240 --- 241 293 451 772 712 650 443 <br /> 30 315 303 279 261 --- 212 351 517 788 668 598 458 <br /> 31 372 --- 342 266 --- 210 --- 505 --- 638 572 --- <br /> <br />TOTAL 8685 7542 8426 8640 6202 7145 8309 12956 19486 21545 20673 17755 <br />MEAN 280 251 272 279 222 230 277 418 650 695 667 592 <br />AC-FT 17230 14960 16710 17140 12300 14170 16480 25700 38650 42730 41000 35220 <br />MAX 453 390 386 355 293 290 357 624 907 901 912 762 <br />MIN 162 136 207 219 173 196 217 272 474 564 542 428 <br /> <br />CAL YR 1990 TOTAL 152561 MEAN 418 MAX 1070 MIN 136 AC-FT 302600 <br />WTR YR 1991 TOTAL 147364 MEAN 404 MAX 912 MIN 136 AC-FT 292300 <br /> <br />MAX DISCH 1052 CFS AT 0145 07-JUN-1991 GH 3.91 FT. SHIFT -0.01 FT. MAX GH 3.91 FT. AT 0145 <br />07-JUN-1991