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<br />NATURAL ENVIRONMENT SURVEY <br /> <br />Survey Date: 9/12/95 <br /> <br />Survey Location: <br />Survey Summary: <br />Basis for ISF: <br /> <br />above Crockett Cabin <br />300' e1ectroflShed. Sample included: 7 Greenback Cutthroat Trout (5" -11") <br />Greenback Cutthroat Trout <br /> <br />. <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 513/96 <br /> <br />Method Used: R2X I <br />Measured Flow (cfs): 5.94 <br />Survey Location: 50 yds u/s of Park Road Bridge <br />Notes: <br /> <br />Grassline Width (ft): 16.6 <br />PHOTOS: @ DOW <br /> <br />WATER AVAILABILITY <br /> <br />Method: <br /> <br />The Greenhorn Creek #2 hydrograph was derived as per the USGS WRI Report 85-4086 <br />(Mountain Region). See hydrograph below. The winter instream flow recommendation was <br />reduced to 0.85 as (11/15 - 3/14) based on the water availability analysis. As per the Division 2 <br />Engineer, senior water rights do not present a water availability problem within this reach of <br />stream. <br /> <br />MEAN MONTIILY FLOWS (as) <br />OCT NOV DEC IAN FEB MAR APR MAY ruN JUL AUG SEP <br />1.5 1.3 1.0 .85 .90 1.5 5.6 29. 24. 3.9 1.8 1.4 <br /> <br />Greenhorn Creek #2 <br />SYNTIETIC HYDROGRAPH <br /> <br /> <br />10 <br /> <br />Vi 8 <br />... <br />u <br />- <br /> <br />~ <br />it 6 <br />~ <br />J:. <br />~ 4 <br />:;: <br />~ <br />fil 2 <br />:;: <br /> <br /> <br />----- <br /> <br /> <br />--- <br /> <br />-- <br /> <br />- <br /> <br />o <br /> <br />OCT NOV DEe .IAN FEB MAR APR MAY JUN JUl AUG SEP OCT <br />MONTH <br /> <br />1_ eWCB ISF AMOlM I <br /> <br />