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<br />, <br /> <br />NATURAL ENVIRONMENT SURVEY <br /> <br />09/01/98 - Final RSR <br />Survey Date: 6115/89 <br /> <br />~urvey Location: <br />~ey Summary: <br />Basis for ISF: <br /> <br />0.5 miles uls of Ralston Creek <br />300' electrofished. Sample Included: 22 rainbow trout (2" - 9"). <br />rainbow trout fishery <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 4/16/96 <br /> <br />Method Used: R2X <br />Measured Flow (cfs): 1.27 <br />Survey Location: SW S21 T2S R71W 6PM <br />Notes: Water clear and cold. <br /> <br />Grassline Width (ft): 15.4 <br />PHOTOS: 3 <br /> <br />WATER AVAILABILITY <br /> <br />Method: <br /> <br />The Deer Creek hydro graph was derived as per the USGS WRI Report 85-4086 (Mountain <br />Region). See hydrograph below. The Summer & Winter instream flow recommendations wer <br />reduced to 1.0 cfs (4/15-7/14), 0.5 cfs (7/15-8114) and OJ cfs (8/15-4/14) based on the water <br />availability analysis. As per the Division 1 Engineer, senior water rights do not present a water <br />availability problem within this reach of stream. <br /> <br />OCT NOV DEe <br />.44 .36 27 <br /> <br />MEAN MONTHLY FLOWS (cfs) <br />IAN FEB MAR APR MAY JUN <br />.23 .24 .42 1.3 7.1 8.4 <br /> <br />JUL <br />1.1 <br /> <br />AUG SEP <br />.47 .37 <br /> <br />Deer Creek <br />SYNTHETIC HYDROGRAPH <br /> <br />4 <br /> <br />~ <br />(J) <br />u. <br />o <br />~ 3 <br />~ <br />o <br />-' <br />u. <br />>- <br />~ 2 <br />~ <br />o <br />::;: <br />~1 <br />a <br />w <br />::;: <br /> <br /> <br />-- <br /> <br />- <br /> <br />-- <br /> <br />-- <br /> <br />o <br /> <br />OCT NOV DEe JAN FEB MAR APR MAY JUN <br />MONTH <br /> <br />JUL AUG SEP OCT <br /> <br />I deer. wk41 <br /> <br />1- CWCS ISF AMOUNT I <br />