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<br />. <br /> <br />386 <br /> <br />. <br /> <br />08219500 <br /> <br />RIO GRANDE BASIN <br /> <br />SOUTH FORK RIO GRANDE AT SOUTH FORK, CO <br /> <br />. <br /> <br />lOCATIDN.--Lat 31039'25-, long 106038'55-, in SW:NE: sec.). T.)9 N.. R.l E.. Rio Grande County. Hydrologic Unit <br />13010001. on left bank near U.S. Highway 160, 700 ft (210 ml downstream from Church Creek. 0.8 mi Ct.3 km, <br />southwest of village of South Fork. and 1.4 mi (2.3 km) upstream from mouth. <br /> <br />ORAINA~E AREA.--Z16 mi2 (559 km2). <br /> <br />PERIOD OF RECORD.--August 1910 to Septe~Der 19ZZ. May 1936 to current year. Monthly discharge only for some <br />periods, published in WSP 1312. <br /> <br />REVISED RECORQS.--wSP 898: 1911(M). wSp 1312: 1912, 1944(H). WSP 1632: 1956-S8(P). <br /> <br />GAGE.--Water-stage recorder. Datum of gage is 8.221.79 ft (2.506.00Z m), ~ationa' Geode~ic ~ertical Datum of <br />19Z9. Aug. 9. 1910. to Mdr. 28. 1915. nonrecording gdge. and Mdr. 29. 1915. to Sept. 30. 1922. wdter-stdge <br />recorder. at bridges 1 mi <<1.6 k.) downstream at different datu~s. <br /> <br />REMARKS.--Recor~s good e.cept those for winter period. which are poor. Transmountain diversions from Colorado <br />River basin to drainage area above station through Treasure Pass ditch <<see elsewhere in this report). <br />Natural flow of stream affected by a few small diversions for irrigation. s'ight regu'ation by Beaver Creek <br />Reservoir. capacity. 4,760 acre-ft (5.81 h.3), and several smaller storage reservoirs. Several Observations <br />of water temperature were Obtained and are Published elsewhere in this report. <br /> <br />COOPERATIO~.--Records collected and co~puted by Colorado Oivisi.on of Water Resources and reviewed by Geologica' <br />Survey. <br /> <br />AVERAGE OISCHARGE.--S7 years lwater years 1911-22, 1931-81), 208 ft3/5 (5.891 m3/s), 1S0,700 acre-ft/~ <br />(18b hm3/yr)~ _ <br /> <br />EXTREMES FOR PERIOD OF RECORO.--Maximum discharge, 8.000 ft3/s 1227 m3/sl Oct. 5, 1911, gage height, 9.7 ft <br />12.9b .), from f'oodmarks, present site and datum. from rating curve e.tended above 1,500 ft3/s 142 m3/sli <br />minimum daily. 10 ft3/s (0.28 .3/5) Jan. b, 1977. <br /> <br />EXTREMES OUTSIDE PERIOD OF RECORQ.--Flood of Oct. 5. 1911. e.ceeded al' other observed floods at this 'ocation <br />since at least 1873. F'ood of June Z9, 1927, reached a stage aoout 1 ft 10.3 ml lower than that of Oct. 5, <br />1911, from information by loca' residents. <br /> <br />EXTREHES FOR CURRENT YEAR.--Maximu. diSCharge, 864 ftJ/s (24.5 mJ/s) at 0730 May 3, gage height, 3.96 Fe (1.201 m), <br />no peak above base of 900 ft3/s (ZS m3/sli mini~um daily, 28 ft3/s 10.19 m3/sl Feb. 11. <br /> <br />OAV <br /> <br />1 <br />2 <br />3 <br />4 <br />5 <br /> <br />o <br />7 <br />8 <br />9 <br />10 <br /> <br />11 <br />12 <br />13 <br />14 <br />15 <br /> <br />10 <br />17 <br />18 <br />19 <br />20 <br /> <br />21 <br />22 <br />23 <br />24 <br />25 <br /> <br />20 <br />27 <br />2a <br />. ...29 <br />.....c30 <br />~~. 31 <br /> <br />O'TOUl <br />MEAN <br />MAX <br />MIN <br />AC-FT <br /> <br />OCT <br /> <br />48 <br />47 <br />48 <br />47 <br />48 <br /> <br />48 <br />47 <br />47 <br />40 <br />40 <br /> <br />45 <br />45 <br />44 <br />45 <br />00 <br /> <br />53 <br />52 <br />50 <br />40 <br />50 <br /> <br />50 <br />51 <br />50 <br />40 <br />43 <br />43 <br /> <br />1504 <br />"t8.S <br />00 <br />40 <br />2980 <br /> <br />NOV <br /> <br />DISCHARGE. IN CUBIC FEET PER SECONO. wATER YEAR OCT08ER 1980 TO SEPTEMBER 1981 <br />"'EAN VALUES <br /> <br />'UG <br /> <br />43 <br />43 <br />41 <br />42 <br />43 <br /> <br />43 <br />45 <br />45 <br />43 <br />43 <br /> <br />42 <br />42 <br />., <br />43 <br />32 <br /> <br />54 <br />53 <br />53 <br />53 <br />52 <br /> <br />32 <br />32 <br />31 <br />31 <br />30 <br /> <br />30 <br />31 <br />32 <br />34 <br />34 <br /> <br />33 <br />31 <br />32 <br />33 <br />34 <br /> <br />111S <br />31.2 <br />., <br />30 <br />2ZLQ <br /> <br />CAl YR 1980 TOTAL 92058 <br />wTR VR 1~81 TOTAL ~139s <br /> <br />;1 <br />, <br />i <br /> <br />OEC <br /> <br />34 <br />34 <br />34 <br />34 <br />34 <br /> <br />33 <br />32 <br />30 <br />29 <br />30 <br /> <br />32 <br />34 <br />35 <br />35 <br />30 <br /> <br />30 <br />35 <br />35 <br />35 <br />35 <br /> <br />35 <br />35 <br />35 <br />33 <br />35 <br /> <br />35 <br />35 <br />35 <br />35 <br />33 <br />34 <br /> <br />1052 <br />33.9 <br />30 <br />29 <br />2090 <br /> <br />MEAN Z52 <br />"'EAN 113 <br /> <br />JAN <br /> <br />34 <br />34 <br />34 <br />34 <br />34 <br /> <br />33 <br />32 <br />3Z <br />32 <br />33 <br /> <br />33 <br />33 <br />33 <br />3Z <br />31 <br /> <br />31 <br />3Z <br />33 <br />33 <br />33 <br /> <br />33 <br />33 <br />34 <br />34 <br />33 <br /> <br />33 <br />33 <br />32 <br />32 <br />JZ <br />32 <br /> <br />1017 <br />32.8 <br />34 <br />31 <br />2020 <br /> <br />MAX 2J 10 <br />"'AX 190 <br /> <br />FE8 <br /> <br />892 <br />31.9 <br />35 <br />28 <br />1170 <br /> <br />NDTE.--NO GA~E-HEIGHT RECORO OEC~ q TO "'AR. 16. <br /> <br />MA' <br /> <br />31 <br />30 <br />30 <br />31 <br />31 <br /> <br />31 <br />31 <br />31 <br />31 <br />30 <br /> <br />28 <br />30 <br />30 <br />31 <br />32 <br /> <br />3Z <br />32 <br />33 <br />33 <br />34 <br /> <br />33 <br />32 <br />33 <br />34 <br />35 <br /> <br />35 <br />34 <br />34 <br /> <br />1271 <br />~1.0 <br />50 <br />35 <br />Z520 <br /> <br />"'IN 29 <br />"'IN 28 <br /> <br />AP' <br /> <br />35 <br />36 <br />37 <br />37 <br />37 <br /> <br />39 <br />38 <br />37 <br />36 <br />37 <br /> <br />38 <br />38 <br />38 <br />38 <br />]q <br /> <br />111 <br />121 <br />118 <br />111 <br />112 <br /> <br />MAY <br /> <br />49 <br />51 <br />50 <br />49 <br />48 <br /> <br />482 <br />005 <br />790 <br />050 <br />503 <br /> <br />39 <br />39 <br />38 <br />4Z <br />40 <br /> <br />114 <br />139 <br />167 <br />109 <br />195 <br /> <br />53 <br />63 <br />07 <br />10 <br />90 <br /> <br />491 <br />423 <br />375 <br />328 <br />310 <br /> <br />43 <br />43 <br />43 <br />46_ <br />40 <br /> <br />2ZZ <br />232 <br />235 <br />202 <br />298 <br /> <br />29Z <br />270 <br />240 <br />225 <br />205 <br /> <br />248 <br />235 <br />232 <br />260 <br />205 <br /> <br />258 <br />258 <br />205 <br />270 <br />-280 <br /> <br />340 <br />419 <br />532 <br />.SO~ <br />530 <br />508 <br /> <br />11179 <br />380 <br />790 <br />225 <br />23360 <br /> <br />182600 <br />82110 <br />150 7~o <br />I <br /> <br />50 <br />49 <br />48 <br />48 <br />49 <br />48 <br /> <br />325 <br />322 <br />319 <br />.3.,0 <br />.403 <br /> <br />,.911 <br />104 <br />403 <br />48 <br />97",0 <br /> <br />AC-FT <br />AC-FT <br /> <br />JUN <br /> <br />581 <br />540 <br />'81 <br />496 <br />451 <br /> <br />518 <br />581 <br />590 <br />581 <br />545 <br /> <br />504 <br />439 <br />3T9 <br />322 <br />255 <br /> <br />205 <br />187 <br />175 <br />105 <br />153 <br /> <br />143 <br />139 <br />143 <br />133 <br />123 <br /> <br />123 <br />118 <br />111 <br />137 <br />155 <br /> <br />9S1l <br />319 <br />590 <br />111 <br />18990 <br /> <br />JUL <br /> <br />l37 <br />l35 <br />112 <br />99 <br />87 <br /> <br />80 <br />73 <br />7J <br />104 <br />105 <br /> <br />n <br />93 <br />84 <br />88 <br />111 <br /> <br />101 <br />155 <br />125 <br />109 <br />90 <br /> <br />85 <br />8' <br />78 <br />125 <br />102 <br /> <br />101 <br />13' <br />107 <br />91 <br />81 <br />84 <br /> <br />'I <br />"..3H2 <br />101 <br />155 <br />73 <br />6230 <br /> <br />10, <br />131 <br />101 <br />91 <br />83 <br /> <br />25-..0 <br />81.9 <br />l31 <br />04 <br />50"0 <br /> <br />'EP <br /> <br />88 <br />87 <br />83 <br />76 <br />11 <br /> <br />101 <br />87 <br />81 <br />83 <br />10' <br /> <br />07 <br />04 <br />64 <br />04 <br />81 <br /> <br />'9 <br />102 <br />9. <br />118 <br />116 <br /> <br />10' <br />109 <br />l09 <br />99 <br />91 <br /> <br />84 <br />88 <br />88 <br />83 <br />80 <br /> <br />OT <br />83 <br />78 <br />12 <br />62 <br /> <br />75 <br />77 <br />80 <br />69 <br />05 <br /> <br />61 <br />58 <br />58 <br />88 <br />80 <br /> <br />70 <br />TO <br />83 <br />88 <br />83 <br />'6 <br /> <br />83 <br />75 <br />1l <br />70 <br />73 <br /> <br />2S99 <br />86.6 <br />110 <br />58 <br />5160 <br />