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<br />;"::00""<",.-', <br /> <br />NATURAL ENVIRONMENT SURVEY <br /> <br />Survey Date: 9/23/86 <br /> <br />'~ -<:'-'~ <br />: ii, <br /> <br />Survey Location: <br />Survey Summary: <br />Basis for ISF: <br /> <br />50' U/S of confluence with Halfmoon Creek. <br />100' electrofished. Sample included: 9 brook trout (6"-10"); <br />brook trout fishery. <br /> <br />e <br /> <br />FIELD SURVEY <br /> <br />Survey Date: 9/23/86 <br /> <br />Method Used: lUX <br />Measured Flow (cfs): 7.4 <br />Survey Location: SW S28 TIOS R81W 6PM <br />Notes: 50' U/S of confluence with Halfmoon Creek. <br /> <br />Grassline Width (ft): 14.6 <br />PHOTOS: 3 <br /> <br />WATER AVAILABILITY <br /> <br />Method: The South Haltinoon Creek hydrograph was derived using a percentage of the flow data from the <br />stream gage on Halfmoon Creek near Malta, Colorado (ID #07083000). See hydrograph below. <br />The winter instream flow recommendation was reduced to 0.75 cfs (11/1-5/31) based on the <br />water availability analysis. As per the Division 2 Engineer, senior water rights do not present a <br />water availability problem within this reach of stream. <br />MEDIAN MONTHLY FLOWS (cfs) <br />OCT NOV DEe JAN FEB MAR APR MAY JUN JUL AUG SEP <br />2,4 1.6 1.2 .89 .85 .85 1.3 8.9 28, 16. 7.0 3.6 <br /> <br />% of Halfmoon Creek near Malta, CO (10 #07083000) <br />1946-93 <br /> <br />f2 8 <br />o <br />~ <br />~ <br />9 6 <br />LL <br />~ <br />J: <br />!Z 4 <br />o <br />:0 <br />~ 2 <br />:0 <br /> <br /> <br />. <br /> <br /> <br />------ <br /> <br /> <br />10 <br /> <br />-- <br /> <br />------ <br /> <br />---- <br /> <br />o <br /> <br />OCT NOV DEC .!AN FES MAR APR MAY JUN <br />MONTH <br /> <br />JUL AUG SEP OCT <br /> <br />I shalf#1.Wk4 I <br /> <br />_ CWCS (SF AMOlM' <br /> <br />