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6 <br />PLATTE RIVER BASIN <br />06706000 NORTH FORK SOUTH PLATTE RIVER BELOW GENEVA CREEK, AT GRANT, CO <br />LOCATION.--Lat 39027'26", long <br />105039'29" in NW;. <br />sec. 10, <br />T.7 S., R.74 <br />W., Park County, <br />Hydrologic <br />Unit <br />10190002, on left bank <br />at Grant, <br />1,550 ft <br />downstream from <br />Geneva <br />Creek, and 1.3 <br />mi <br />downstream <br />from <br />east portal of <br />Harold D. <br />Roberts <br />tunnel. <br />DRAINAGE AREA AND PERIOD OF RECORD. --127 <br />miz; 1948 <br />to present. <br />GAGE.--Water-stage recorder <br />with <br />satellite <br />telemetry in a <br />wooden <br />shelter at a concrete <br />control section. <br />Station is owned <br />and maintained <br />by the Denver Water <br />Dept. <br />Satellite telemetry <br />is maintained by <br />the <br />U.S. Army Corps <br />of Engineers and <br />the USGS. <br />REMARKS. --The primary <br />record is <br />hourly <br />data taken from satellite <br />monitoring <br />with chart <br />back up. It <br />is <br />complete, with <br />mean daily chart <br />values used <br />for the following days when the <br />satellite system <br />was <br />down: December <br />31; January <br />1,5,6,12,13,24,25; <br />March <br />13. The shaft <br />encoder was <br />accurate to ± <br />0.01 <br />ft. except for <br />March <br />14 and April 6, 2000 <br />when <br />it was <br />found <br />to be off. <br />A -0.02 <br />and -0.05, <br />respectively. <br />The record is reliable, except <br />for <br />the following <br />periods when <br />the <br />stage -discharge <br />relationship was <br />affected by ice <br />accumulating on the control: October 17,18; <br />November 13-16, <br />18- <br />24; and April <br />4. The <br />record is good, except for <br />the ice <br />days listed <br />above, <br />which are estimated. <br />Record developed <br />by Rodger Burcher. <br />RATING <br />TABLE.--PLAGRAC011 <br />USED <br />FROM 01 -OCT -1999 TO <br />30 -SEP -2000 <br />DISCHARGE, IN CFS, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 <br />MEAN VALUES <br />DAY <br />OCT NOV <br />DEC <br />JAN <br />FEB <br />MAR <br />APR <br />MAY <br />JUN <br />JUL <br />AUG <br />SEP <br />1 <br />59 42 <br />112 <br />102 <br />101 <br />96 <br />80 <br />67 <br />628 <br />419 <br />339 <br />286 <br />2 <br />58 38 <br />111 <br />102 <br />101 <br />96 <br />52 <br />79 <br />608 <br />415 <br />372 <br />280 <br />3 <br />56 39 <br />110 <br />102 <br />102 <br />96 <br />30 <br />114 <br />614 <br />414 <br />348 <br />280 <br />4 <br />55 41 <br />105 <br />102 <br />103 <br />97 <br />25 <br />140 <br />621 <br />401 <br />332 <br />327 <br />5 <br />54 40 <br />106 <br />102 <br />101 <br />94 <br />29 <br />16B <br />603 <br />391 <br />328 <br />358 <br />6 <br />55 40 <br />108 <br />102 <br />101 <br />93 <br />30 <br />184 <br />616 <br />411 <br />297 <br />358 <br />7 <br />63 40 <br />109 <br />102 <br />102 <br />93 <br />29 <br />176 <br />657 <br />489 <br />280 <br />358 <br />8 <br />66 40 <br />108 <br />102 <br />102 <br />93 <br />29 <br />169 <br />643 <br />529 <br />280 <br />343 <br />9 <br />68 39 <br />108 <br />102 <br />100 <br />93 <br />34 <br />133 <br />629 <br />472 <br />307 <br />323 <br />10 <br />63 38 <br />108 <br />102 <br />99 <br />93 <br />33 <br />147 <br />648 <br />365 <br />362 <br />357 <br />11 <br />58 38 <br />108 <br />102 <br />99 <br />93 <br />27 <br />172 <br />636 <br />290 <br />454 <br />378 <br />12 <br />55 35 <br />108 <br />102 <br />101 <br />93 <br />30 <br />143 <br />651 <br />340 <br />331 <br />377 <br />13 <br />53 28 <br />108 <br />102 <br />99 <br />93 <br />37 <br />158 <br />645 <br />375 <br />477 <br />334 <br />14 <br />53 26 <br />106 <br />102 <br />99 <br />94 <br />38 <br />261 <br />640 <br />371 <br />485 <br />282 <br />15 <br />51 33 <br />105 <br />102 <br />99 <br />113 <br />36 <br />329 <br />641 <br />448 <br />453 <br />236 <br />16 <br />49 29 <br />105 <br />102 <br />99 <br />120 <br />32 <br />357 <br />647 <br />497 <br />370 <br />171 <br />17 <br />29 33 <br />105 <br />102 <br />99 <br />120 <br />41 <br />362 <br />562 <br />309 <br />341 <br />151 <br />18 <br />44 29 <br />105 <br />102 <br />99 <br />120 <br />48 <br />339 <br />349 <br />86 <br />275 <br />96 <br />19 <br />52 30 <br />105 <br />102 <br />99 <br />120 <br />40 <br />341 <br />251 <br />70 <br />265 <br />77 <br />20 <br />50 36 <br />105 <br />102 <br />99 <br />120 <br />37 <br />347 <br />275 <br />65 <br />280 <br />99 <br />21 <br />50 33 <br />105 <br />102 <br />100 <br />119 <br />43 <br />373 <br />297 <br />60 <br />297 <br />84 <br />22 <br />48 28 <br />105 <br />102 <br />99 <br />119 <br />39 <br />438 <br />376 <br />57 <br />303 <br />63 <br />23 <br />47 28 <br />105 <br />102 <br />100 <br />119 <br />46 <br />556 <br />368 <br />55 <br />314 <br />54 <br />24 <br />46 64 <br />104 <br />99 <br />99 <br />120 <br />49 <br />658 <br />404 <br />54 <br />267 <br />56 <br />25 <br />45 132 <br />102 <br />99 <br />95 <br />134 <br />43 <br />718 <br />448 <br />94 <br />241 <br />51 <br />26 <br />44 141 <br />102 <br />102 <br />96 <br />132 <br />51 <br />579 <br />415 <br />157 <br />267 <br />53 <br />27 <br />43 139 <br />102 <br />102 <br />96 <br />135 <br />63 <br />496 <br />306 <br />198 <br />296 <br />47 <br />28 <br />42 129 <br />102 <br />98 <br />96 <br />135 <br />72 <br />532 <br />248 <br />252 <br />293 <br />44 <br />29 <br />43 123 <br />100 <br />100 <br />96 <br />134 <br />77 <br />616 <br />269 <br />242 <br />297 <br />45 <br />30 <br />41 113 <br />103 <br />99 <br />--- <br />138 <br />76 <br />613 <br />376 <br />240 <br />270 <br />44 <br />31 <br />44 --- <br />102 <br />101 <br />--- <br />113 <br />--- <br />630 <br />--- <br />285 <br />283 <br />--- <br />TOTAL <br />1584 1644 <br />3277 <br />3146 <br />2881 <br />3428 <br />1296 <br />10395 <br />15071 8851 <br />10104 <br />6012 <br />MEAN <br />51.1 54.8 <br />106 <br />101 <br />99.3 <br />111 <br />43.2 <br />335 <br />502 <br />286 <br />326 <br />200 <br />AC -FT <br />3140 3260 <br />6500 <br />6240 <br />5710 <br />6800 <br />2570 <br />20620 <br />29890 17560 <br />20040 11920 <br />MAX <br />68 141 <br />112 <br />102 <br />103 <br />138 <br />80 <br />718 <br />657 <br />529 <br />485 <br />378 <br />MIN <br />29 26 <br />100 <br />98 <br />95 <br />93 <br />25 <br />67 <br />248 <br />54 <br />241 <br />44 <br />CAL YR <br />1999 TOTAL <br />0 <br />MEAN <br />0 MAX <br />0 <br />MIN <br />0 <br />AC -FT <br />0 <br />WTR YR <br />2000 TOTAL <br />67689 <br />MEAN <br />185 MAX <br />718 <br />MIN <br />25 <br />AC -FT 134300 <br />MAX DISCH: <br />880 CFS AT <br />09:45 ON May. 25, <br />2000 GH <br />2.14 FT. <br />SHIFT <br />0.04 FT. <br />MAX GH: <br />2.14 FT. AT 09:45 <br />ON <br />May. 25, 2000 <br />FOR MORE <br />COMPLETE OR DETAILED INFORMATION SEE DAILY OR MONTHLY <br />RECORD. <br />1000 <br />500 <br />0 <br />Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep <br />