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<br /> <br /> <br /> 15 <br /> <br /> PLATTE RIVER BASIN <br /> <br /> 06720500 SOUTH PLATTE RIVER AT HENDERSON, CO <br /> <br />LOCATION --Lat 39°55'19", long 104°52'00", in SE¼NE¼ sec.34, T.l S., R,67 W., Adams County, Hydrologic Unit 10190003, on <br />right bank 500 ft upstream from bridge on State Highway 22 and 0.2 mi northwest of Henderson. <br /> <br />DRAINAGE AREA.--4,713 mi2. <br /> <br />GAGE.--Water-stage recorder with satellite telemetry. Datum of gage is 5,003.12 ft above National Geodetic Vertical Datum <br />of 1929. See WSP 1710 or 1730 for history of changes prior to June 1, 1960. June 1, 1960, to May 10, 1969, water- <br />stage recorder at site 1,200 ft upstream at datum 2.00 ft, higher. May 11 to Oct. 2, 1969, nonrecording gage at <br />site 500 ft downstream at present datum. Levels were run on August 09, 1991 using RM No. 5 as base. The RP was <br />found to be 0.02 ft. high and was not corrected. Station maintained and records developed by Rodger L. Burcher. <br /> <br />REMARKS.--No estimated daily discharges. Records good. Natural flow of stream affected by transmountain diversions, <br /> storage reservoirs, ground-water withdrawals, diversions for irrigation of about 253,000 acres, and return flow <br />from irrigated areas. <br /> <br />RATING TABLE.--PLAHENCO26 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 /> 1 312 222 204 244 313 195 151 318 2170 609 400 374 <br /> 2 327 207 203 272 344 179 105 210 3000 711 559 380 <br /> 3 335 312 210 276 323 171 101 190 1080 884 3530 411 <br /> 4 301 266 210 282 311 182 94 208 662 794 1510 406 <br /> 5 288 239 202 282 314 251 109 353 802 759 1200 391 <br /> 6 273 365 213 286 289 264 115 197 982 658 1070 343 <br /> 7 262 290 202 283 276 220 112 171 1630 622 643 355 <br /> 8 348 252 196 288 274 196 191 154 1100 626 532 357 <br /> 9 335 248 204 280 275 187 213 145 1120 813 413 339 <br /> 10 312 228 203 284 268 184 210 179 1190 1250 480 262 <br /> 11 312 225 223 283 273 181 266 243 1010 768 419 269 <br /> 12 305 222 209 285 270 177 383 305 914 1090 383 261 <br /> 13 280 215 204 289 291 173 269 289 882 1300 428 255 <br /> 14 260 210 209 294 281 170 222 237 947 835 420 252 <br /> 15 262 208 203 297 264 134 200 489 901 650 424 230 <br /> 16 254 199 219 316 263 90 182 1350 904 548 500 216 <br /> 17 249 193 217 335 255 93 177 587 841 502 524 213 <br /> 18 242 190 223 315 257 99 176 453 779 522 432 223 <br /> 19 239 198 208 316 247 100 176 447 688 509 465 233 <br /> 20 340 210 205 324 247 100 166 411 592 479 416 229 <br /> 21 303 207 215 331 247 103 185 462 663 677 411 225 <br /> 22 266 202 229 319 249 98 191 533 1890 1070 390 217 <br /> 23 273 189 229 322 249 97 176 1150 701 1500 405 223 <br /> 24 256 194 226 311 243 95 169 1040 576 782 378 223 <br /> 25 243 195 229 314 241 93 157 523 496 685 387 219 <br /> 26 242 217 219 309 188 96 158 504 515 606 377 225 <br /> 27 248 301 232 313 179 342 152 440 616 548 378 217 <br /> 28 242 249 239 312 182 127 149 477 701 566 732 211 <br /> 29 239 259 232 306 --- 114 153 846 649 469 583 202 <br /> 30 246 242 232 300 --- 118 617 494 551 424 406 301 <br /> 31 269 --- 237 305 --- 107 --- 458 --- 418 370 --- <br /> <br />TOTAL 8663 6954 6686 9273 7413 4736 5725 13863 29552 22674 19565 8262 <br />MEAN 279 232 216 299 265 153 191 447 985 731 631 275 <br />AC-FT 17180 13790 13260 18390 14700 9390 11360 27500 58620 44970 38810 16390 <br />MAX 348 365 239 335 344 342 617 1350 3000 1500 3530 411 <br />MIN 239 189 196 244 179 90 94 145 496 418 370 202 <br /> <br />CAL YR 1990 TOTAL 143009 MEAN 392 MAX 2200 MIN 164 AC-FT 283700 <br />WTR YR 1991 TOTAL 143366 MEAN 393 MAX 3530 MIN 90 AC-FT 284400 <br /> <br />MAX DISCH 9720 CFS AT 2300 01-JUN-1991 GH 9.06 FT. SHIFT -0.97 FT. MAX GH 9.06 FT. AT 2300 <br />01-JUN-1991