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<br />~~/, <br /> <br />NATURAL ENVIRONMENT SURVEY <br /> <br />Survey Date: 7/17nS <br /> <br />'. <br /> <br />Survey Location: <br />Survey Summary: <br /> <br />- 200 yds uls of confluence with Powderhorn River. 4t <br />300 ft electrofished. Sample included: 18 brook trout (6" - 8") and 42 brown trou <br />12"). <br />brook and brown trout fishery <br /> <br />Basis for ISF: <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 10/4/94 <br /> <br />Method Used: R2X I Grassline Width (ft): 10.2 <br />Measured Flow (cfs): 5.67 PHOTOS: 4 <br />Survey Location: 200 yds uls of confluence with Powderhorn Creek. <br />Notes: Water clear, slightly higher than baseflow due to precip. <br /> <br />WATER AVAILABILITY <br /> <br />Method: <br />Remarks: <br /> <br />The East Fork Powderhom Creek hydrograph was derived as per USGS WRI Report 85-4086. <br />See attached hydrograph. As per the Division 4 Engineer, senior water rights do not present a <br />water availability problem within this reach of stream. <br /> <br />OCT NOV DEC <br />7.0 4.9 3.7 <br /> <br />MEAN MONTIILYFLOWS (cfs) <br />JAN FEB MAR APR MAY JUN <br />3.1 3.0 3.3 7.7 37. 100 <br /> <br />JUL <br />35. <br /> <br />AUG. SEP <br />15. 9.0 <br /> <br />East Fk. Powderhorn Creek <br />SYNTHETIC HYDROGRAPH <br /> <br /> <br />10 <br /> <br /> <br />Cii <br />u.. <br />~ 8 <br />;: <br />o <br />-' <br />u.. <br />>- <br />-' <br />J: <br />'Z <br />o <br />:! <br />Z <br />in <br />:! <br /> <br />6 <br /> <br /> <br /> <br />4 <br /> <br />2 <br /> <br />-- <br /> <br />------------ <br /> <br />----------- <br /> <br />o <br /> <br />OCT NOV DEC JAN <br /> <br />FEB MAR APR MAY JUN <br />MONTH <br /> <br />JUL AUG SEP OCT <br /> <br />le_powder.Wk41 <br /> <br />- ewes ISF A MOUNT <br /> <br />A;,.. <br />,. <br />