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<br />NATURAL ENVIRONMENT SURVEY <br /> <br />9/21/98 - Final RSR <br /> <br />Survey Date: 9/8n8 <br /> <br />. <br /> <br />Survey Location: <br />Survey Summary: <br />Basis for ISF: <br /> <br />1.5 miles u/s of confluence with Powderhorn Creek <br />500 ft eleetrofished. Sample included: 34 brook trout (2" - 12"). <br />brook and cutthroat trout fIShery <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 1013/94 <br /> <br />Method Used: R2X Grassline Width (ft): 9.91 <br />Measured Flow (cfs): 1.41 PHOTOS: 3 <br />Survey Location: 1.5 miles uls of confluence with Powderhorn Creek <br />Notes: Goudy & Cool. Some rain in recent days. Water clear. H2O temp = 6 C <br /> <br />WATER AVAILABILITY <br /> <br />Method: <br /> <br />The West ForkPowderhom Creek hydrograph was derived as per a % of Gage # 09121500: <br />Cebolla Creek near Lake City, CO. See hydrograph below. As per the Division 4 Engineer, <br />senior water rights do not present a water availability problem within this reach of stream. <br /> <br />OCT NOV DEC <br />2.7 2.3 2.1 <br /> <br />MEDIAN MONTHLY FLOWS cfs <br />IAN FEB MAR APR MAY JUN <br />1.9 1.9 2.2 4.6 16. 10. <br /> <br />JUL <br />4.6 <br /> <br />AUG SEP <br />3.3 2.6 <br /> <br />e <br /> <br />West FK Powderhorn Creek (% Gage #09121500) <br />1946-54 <br /> <br /> 5 <br />en <br />u. 4 <br />u <br />- <br />~ <br />0 <br />...J 3 <br />u. <br />>- <br />i <br />!z 2 -- <br />0 <br />::E <br />~ 1 <br />::E <br /> 0 <br /> <br /> <br /> <br />------------ <br /> <br />---------- <br /> <br />OCT NOV DEC JAN FEB MAR APR MAY JUN <br />MONTH <br /> <br />JUL AUG SEP OCT <br /> <br />IWFPOWDR WK41 <br /> <br />I - ewcs ISF AMOUNT <br /> <br />e <br /> <br />C:\MARKINEW_RECS\WPSI\RECOMMENDATION SUMMARY REPORT.doc <br />