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<br />NATURAL ENVIRONMENT SURVEY <br /> <br />Survey Date: 7/6/89 <br /> <br />...~~-j <br />..lt~. i:;;,T <br />,,,,, <br /> <br />Survey Location: <br />Survey Summary: <br />Basis for ISF: <br /> <br />75'-100' u/s of West Beaver Creek <br />100 ft electrofished. Sample included: 19 brook trout (5"-9") and 1 rainbow trout") <br />brook and rainbow trout fishery .. <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 7/6/89 <br /> <br />Method Used: R2X I Grassline Width (ft): <br />Measured Flow (cfs): 10.6 PHOTOS: <br />Survey Location: 75'-100' above c:onfluenc:e with West Beaver Creek <br />Notes: Oear normal flow. Stream loaded with trout. <br /> <br />23.6 <br />3 <br /> <br />WATER AVAILABILITY <br /> <br />The Beaver Creek hydrograph was derived as per USGS WRI Report 85-4086. <br />See attached hydrograph, The winter instream flow recommendation was reduced to 2 cfs <br />(12/15-4/14) 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 />----------- <br /> <br />Method: <br />Remarks: <br /> <br />OCT NOV DEC <br />4.8 3.4 2.5 <br /> <br />MEAN MONllIL Y FLOWS cfs <br />IAN FEB MAR APR MAY)UN <br />2.1 2.0 2.2 6.5 39. 73. <br /> <br />JUL <br />25. <br /> <br />Beaver Creek u/s of West Beaver Creek <br />SY NTHETIC HY OROGRAPH <br /> <br /> 10 <br />Ui <br />u. <br />~ 8 <br />3: <br />0 <br />-' <br />u. <br />i>- a <br />-' <br />:I: <br />.... <br />Z <br />0 4 <br />:! <br />z <br />~ ----- <br />2 -- -- <br />:! <br /> <br /> <br /> <br />o <br /> <br />OCT <br /> <br />NOV DEC <br /> <br />JAN <br /> <br />FEB MI\R APR MAY JUN <br />MONTH <br /> <br />JUL <br /> <br />JbeaV'1.Wk41 <br /> <br />- CWCB ISF AMOUNT <br /> <br />AUG SEP <br />10. 6.1 <br /> <br /> <br />AUG SEP <br /> <br /> <br />OCT <br /> <br />e", <br />