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<br />NATURAL ENVIRONMENT SURVEY <br /> <br />9/21/98 - Final RSR <br /> <br />Survey Date: 8/19/86 <br /> <br />Survey Location: <br />. Survey Summary: <br /> <br />Basis for ISF: <br /> <br />2 miles north of Highway 50 <br />250 ft electrofished. Sample included:17 brook trout (2"- 6"), 1 rainbow trout (7") and <br />brown trout (5"- 8"). <br />brook, rainbow and brown trout fishery <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 8/17/88 <br /> <br />Method Used: R2X Grassline Width (ft): 19 <br />Measured Flow (cfs): 4.6 PHOTOS: 3 <br />Survey Location: 3/4 mile uls of confluence with Gunnison River <br />Notes: Heavy rain previous day, stream clear, normal appearance. <br /> <br />WATER AVAILABILITY <br /> <br />Method: <br />Remarks: <br /> <br />The Beaver Creek hydrograph was derived as per USGS WRI Report 85-4086. <br />See attached hydrograph. The winter instreamflow recommendation was reduced to 1.5 cfs <br />(11/15-3/31) based on water availability analysis. As per the Division 4 Engineer, senior water <br />rights do not present a water availability problem within this reach of stream. <br /> <br />OCT NOV DEC <br />3.3 2.5 1.9 <br /> <br />MEAN MONTHLY FLOWS (cfs) <br />IAN FEB MAR APR MAY JUN <br />1.6 1.6 2.1 6.1 30. 50. <br /> <br />JUL <br />12. <br /> <br />AUG SEP <br />5.3 3.6 <br /> <br />Beaver Creek u/s of Gunnison River, <br />SYNTH~IC HYDROGRAPH <br /> <br /> 10 <br />UJ <br />U. <br />0 <br />:: 8 <br />0 <br />-' <br />u. <br />> 6 <br />-' <br />:I: <br />.... <br />Z <br />0 4 <br />:0 <br />Z <br />;lj 2 <br />:0 ---- <br /> 0 <br /> OCT NOV DEe JAN <br /> <br />------ <br /> <br /> <br /> <br /> <br />---- <br /> <br />-- <br /> <br />FEB MAR APR MAY JUN <br />MONTH <br /> <br />JUL <br /> <br />AUG SEP <br /> <br />OCT <br /> <br />IbeaV#2.Wk41 <br /> <br />_ eWCB ISF AMOUNT <br /> <br />e <br /> <br />C:IMARK\NEW _RECS\DIV _ 4\19971wp\97 _A_Rcc_sum_lJlt.do<: <br />