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<br />9/21/98 - Final RSR <br /> <br />NATURAL ENVIRONMENT SURVEY <br /> <br />Survey Date: 9/12195 <br /> <br />a Survey Location: <br />.Survey Summary: <br />Basis for ISF: <br /> <br />above Crockett Cabin <br />300' electrofished. Sample included: 7 Greenback Cutthroat Trout (5" - 11") <br />Greenback Cutthroat Trout <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 5/3/96 <br /> <br />Method Used: R2X <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 cfs (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 />OCT NOV DEC <br />1.5 1.3 1.0 <br /> <br />MEAN MONTIfL Y FLOWS (cfs) <br />JAN FEB MAR APR MAY JUN <br />.85 .90 1.5 5,6 29. 24. <br /> <br />JUL <br />3.9 <br /> <br />AUG SEP <br />1.8 1.4 <br /> <br />e <br /> <br />Greenhorn Creek #2 <br />SYNTHETIC HYDROGRAPH <br /> <br />10 <br /> <br />iil <br />l3 8 <br /> <br />~ <br />o <br />..J <br />LL 6 <br />> <br />..J <br />J: <br />!Z <br />o 4 <br />::;: <br />Z <br />~ <br />o <br />w 2 <br />::;: <br /> <br /> <br />----- <br /> <br /> <br />-- <br /> <br />- <br /> <br />o <br /> <br />e <br /> <br />OCT NOV DEC JAN FEB MAR APR MAY JUN <br />MONTH <br /> <br />I - CWCS ISF AMOUNT I <br /> <br />JUL AUG SEP OCT <br /> <br />Div 2 Rec Sum Rpt <br />