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17 <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 <br />10190002, on left bank at South Platte, 200 ft downstream from bridge on State Highway 75, and 400 ft <br />downstream from North Fork. <br /> <br />DRAINAGE AREA AND PERIOD OF RECORD.--2,579 mi²; 1910 to present. <br /> <br />GAGE.--A graphic water stage recorder and satellite monitoring equipment in a concrete shelter and CMP well. The <br />Sutron 8004 DCP was replaced with an 8210. The primary gage is an electric tape gage mounted on the <br />equipment shelf. The station was rebuilt with a 60” CMP well and concrete shelter in 1994. 120-volt <br />electricity was installed in 2001. The cableway was rebuilt in 1994. The gage is on Denver Water Board <br />property. <br />REMARKS.--The primary record is hourly data taken from satellite readings with chart back up. The record is <br />complete and reliable, except for the following days when ice affected the stage-discharge relationship: <br />December 16, 2004 through January 26, 2005. There may also have been ice affect on: Nov. 30-Dec. 1; Dec. <br />14, 15, 2004; and Feb. 1-11, 2005. The record is good, except for the following days: December 16— <br />January 26, which are estimated due to ice effect and considered poor; and Nov. 30-Dec. 1; Dec. 14, 15, <br />2004; and Feb. 1-11, 2005, which are considered fair due to possible ice-affect. Station maintained and <br />record developed by Steve Barrett. <br /> <br />RATING TABLE.--PLASPLCO16 USED FROM 01-OCT-2004 TO 30-SEP-2005 <br /> <br /> DISCHARGE, IN CFS, WATER YEAR OCTOBER 2004 TO SEPTEMBER 2005 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 352 323 281 187 171 198 309 709 889 476 515 465 <br /> 2 347 287 282 184 178 203 315 680 755 622 496 524 <br /> 3 338 294 279 182 214 234 319 675 729 609 468 559 <br /> 4 343 301 263 177 219 240 327 649 732 605 588 562 <br /> 5 360 294 278 145 220 267 276 631 723 722 646 562 <br /> 6 380 243 269 173 217 271 228 642 694 708 452 559 <br /> 7 390 236 247 193 218 276 226 680 659 743 468 476 <br /> 8 357 239 247 229 217 301 238 684 616 740 524 418 <br /> 9 280 239 220 223 196 298 242 674 598 876 541 416 <br /> 10 272 258 204 226 197 297 252 686 643 837 553 424 <br /> 11 271 272 206 207 188 248 233 724 708 724 542 387 <br /> 12 332 269 206 183 190 252 229 723 775 642 482 381 <br /> 13 359 269 204 158 203 260 264 678 727 558 449 378 <br /> 14 353 264 199 184 200 252 449 637 642 562 464 491 <br /> 15 351 259 197 178 194 249 529 626 585 557 454 509 <br /> 16 323 264 167 195 188 249 410 621 560 553 551 418 <br /> 17 316 268 149 195 180 274 421 628 538 537 669 329 <br /> 18 314 267 158 189 185 331 442 635 526 521 626 332 <br /> 19 315 260 165 190 202 342 455 661 514 460 527 328 <br /> 20 299 269 164 190 203 352 467 746 503 471 525 459 <br /> 21 292 252 171 197 202 364 452 815 536 552 527 527 <br /> 22 293 254 173 189 204 343 423 848 537 546 412 470 <br /> 23 337 266 145 185 201 306 453 912 561 533 399 445 <br /> 24 340 259 168 179 199 305 458 911 596 526 388 369 <br /> 25 345 260 232 184 196 353 546 880 640 539 377 364 <br /> 26 363 268 226 183 199 352 565 910 589 487 380 359 <br /> 27 355 280 230 201 199 351 639 907 547 479 407 495 <br /> 28 353 297 191 201 194 369 757 882 505 481 411 515 <br /> 29 331 277 198 203 --- 380 763 861 484 519 403 391 <br /> 30 207 260 189 211 --- 356 743 967 462 517 398 320 <br /> 31 302 --- 190 206 --- 325 --- 1010 --- 514 401 --- <br /> <br />TOTAL 10170 8048 6498 5927 5574 9198 12430 23292 18573 18216 15043 13232 <br />MEAN 328 268 210 191 199 297 414 751 619 588 485 441 <br />AC-FT 20170 15960 12890 11760 11060 18240 24650 46200 36840 36130 29840 26250 <br />MAX 390 323 282 229 220 380 763 1010 889 876 669 562 <br />MIN 207 236 145 145 171 198 226 621 462 460 377 320 <br /> <br />WTR YR 2005 TOTAL 146201 MEAN 401 MAX 1010 MIN 145 AC-FT 290000 <br /> <br />MAX DISCH: 1060 CFS AT 04:45 ON May. 31, 2005 GH 4.12 FT. SHIFT -0.06 FT. <br />MAX GH: 4.12 FT. AT 04:45 ON May. 31, 2005 <br /> <br />FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br />