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<br />NATURAL ENVIRONMENT SURVEY <br /> <br />Survey Date: 9/12/95 <br /> <br />~;:,~ <br />'i'., <br /> <br />Survey Location: <br />Survey Summary: <br />Basis for ISF: <br /> <br />above Crockett Cabin <br />300' electro fIShed. Sample included: 7 Greenback Cutthroat Trout (5" - 11") <br />Greenback Cutthroat Trout <br /> <br />tit <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 5/3/96 <br /> <br />Method Used: R2X I <br />Measured Flow (cfs): 5.94 <br />Survey Location: 50 yds ufs 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 MONTHLY FLOWS (cfs) <br />IAN PEB 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 />Greenhorn Creek #2 <br />SYNT~IC HYDROGRAPH <br /> <br />10 <br /> <br />u; 8 <br />11. <br />o <br />~ <br />~ <br />o <br />~ 6 <br />~ <br />-'- <br />!z 4 <br />o <br />::;: <br />~ <br />iii 2 <br />::;: <br /> <br /> <br />------ <br /> <br /> <br />-- <br /> <br />- <br /> <br />o <br /> <br />OCT NOV DEC JAN FES MAR APR MAY JUN JUL AUG SEP OCT <br />MONTH <br /> <br />1_ ewcs ISF AMOl.lllT I <br /> <br />