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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 <br />10190002, on left bank at South Platte, 200 ft downstream from bridge on State Highway 75, and 400 <br />ft downstream from North Fork. <br /> <br />DRAINAGE AREA.--2,579 mi². <br /> <br />GAGE.--Graphic water-stage recorder with satellite telemetry in a new concrete shelter and CMP well. A new <br />cableway also installed. Satellite telemetry is maintained by the U. S. Army Corps of Engineers and <br />the USGS. <br /> <br />REMARKS.--The primary record is hourly satellite readings. The record is complete. Open water record is <br />reliable, and agrees with the chart record to within 0.02 ft. when encoder and pen corrections are <br />applied. Discharges were estimated for Jan. 19-24, 27-29, 1998 when the stage discharge <br />relationship was ice affected. The record is good for open water conditions, poor for estimated <br />winter conditions. The Buffalo Creek Fire is still creating problems. Station maintained and <br />record developed by Rodger L. Burcher. <br /> <br />RATING TABLE.--PLASPLCO15 USED FROM 01-OCT-1997 TO 30-SEP-1998 <br /> <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 <br /> MEAN VALUES <br /> <br /> DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP <br /> <br /> 1 540 261 307 233 222 197 275 629 1030 1400 884 960 <br /> 2 695 245 308 234 219 206 299 630 1050 1270 911 759 <br /> 3 784 231 292 234 221 222 280 652 1060 1060 834 623 <br /> 4 833 210 269 228 230 220 309 688 1050 970 868 645 <br /> 5 827 202 268 226 249 223 322 778 1020 1000 895 788 <br /> 6 825 198 271 231 247 237 332 789 1000 981 807 859 <br /> 7 801 234 288 210 247 242 369 824 967 1040 733 815 <br /> 8 758 233 300 246 246 228 426 793 913 1150 693 753 <br /> 9 631 223 306 273 248 234 445 851 861 1280 683 705 <br /> 10 560 214 294 350 243 249 433 926 810 1410 716 621 <br /> 11 527 204 251 339 235 262 425 962 758 1460 711 707 <br /> 12 540 202 215 272 237 255 457 995 741 1230 668 880 <br /> 13 480 229 240 261 239 262 466 989 849 1160 681 904 <br /> 14 478 229 284 259 246 269 433 1050 830 1340 708 841 <br /> 15 426 196 321 257 243 275 421 1060 858 1510 727 681 <br /> 16 341 174 264 243 251 282 395 979 771 1420 680 577 <br /> 17 329 198 248 213 247 282 359 964 691 1300 682 589 <br /> 18 326 243 253 213 252 297 373 950 678 1190 694 614 <br /> 19 322 243 243 196 246 270 349 922 710 1110 678 684 <br /> 20 324 279 238 198 238 282 371 950 709 1050 687 672 <br /> 21 328 262 228 198 243 288 367 1010 709 1030 706 660 <br /> 22 326 247 232 205 250 299 389 1040 723 1060 694 573 <br /> 23 316 238 225 222 248 310 433 1010 712 1120 668 502 <br /> 24 312 258 230 243 224 310 488 1010 769 867 699 502 <br /> 25 312 259 236 251 224 311 570 1010 849 736 782 489 <br /> 26 274 267 233 248 203 342 623 1030 817 980 837 481 <br /> 27 321 310 250 246 197 360 560 1050 942 876 877 480 <br /> 28 295 317 262 246 196 344 606 1090 874 801 881 514 <br /> 29 288 291 257 240 --- 322 610 1080 982 858 954 608 <br /> 30 284 283 232 224 --- 302 613 1070 1300 862 933 612 <br /> 31 258 --- 232 225 --- 286 --- 1040 --- 1000 920 --- <br /> <br /> TOTAL 14661 7180 8077 7464 6591 8468 12798 28821 26033 34521 23891 20098 <br /> MEAN 473 239 261 241 235 273 427 930 868 1114 771 670 <br /> AC-FT 29080 14240 16020 14800 13070 16800 25380 57170 51640 68470 47390 39860 <br /> MAX 833 317 321 350 252 360 623 1090 1300 1510 954 960 <br /> MIN 258 174 215 196 196 197 275 629 678 736 668 480 <br /> <br /> CAL YR 1997 TOTAL 186042 MEAN 510 MAX 1530 MIN 172 AC-FT 369000 <br /> WTR YR 1998 TOTAL 198603 MEAN 544 MAX 1510 MIN 174 AC-FT 393900 <br /> <br /> MAX DISCH 2556 CFS AT 1930 31-JUL-1998 GH 6.09 FT. SHIFT -0.07 FT. MAX GH 6.09 FT. AT 1930 31-JUL-1998 <br /> <br /> FOR MORE COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY RECORD. <br /> <br />0 <br />500 <br />1000 <br />1500 <br />2000 <br />OctNovDecJanFebMarAprMayJunJulAugSep