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<br />. <br /> <br />. <br /> <br />e <br /> <br />COLORADO WATER CONSERVATION BOARD <br />INSTREAM FLOW RECOMMENDATIONS <br /> <br />RECOMMENDATION SUMMARY REPORT <br /> <br />STREAM: North Boulder Creek <br />WATERSHED: South Platte <br /> <br />ID: <br />DIV: 1 ,COUNTY: Boulder <br /> <br />RECOMMENDATION <br />FLOW (cfs): 5.0 (4/1-9/30) <br />2.0 (10/1-3/31) <br /> <br />LENGTH (miles): <br /> <br />6.4 <br /> <br />UPPER TERMINUS: <br /> <br />confl with Lakewood Reservoir Inlet in <br />NE/4 SE/4 Sl T1S R73W 6PM <br /> <br />LOWER TERMINUS: <br /> <br />confl of N & M Boulder Creeks in <br />NE/4 SW/4 S36 T1N R72W 6PM <br /> <br />USGS QUADS: <br /> <br />Nederland, Tungsten, Gold Hill <br /> <br />FISH SURVEY <br />DOW CODE: 10289 <br />SAMPLE SUMMARY: <br /> <br />DATE: 09/23/91 <br />LOCATION: 1.6 mile d/s of HWY 72 @ Cold Springs Dr <br />350 ft electrofished. Sample included: 15 Brook Trout, 5-9" <br />28 Rainbow Trout, 4-9". <br /> <br />FIELD SURVEY <br />CROSS SECTION LOCATION: 1.6 <br />MEASURED FLOW (cfs): 20.16 <br />REMARKS: None <br /> <br />DATE: 09/23/91 <br />miles d/s of Hwy 72 @ Cold Springs Dr. <br />GRASSLINE WIDTH (ft): 20.17 PHOTOS: Y <br /> <br />HYDRAULIC ANALYSIS <br />AT RECOMMENDED <br />FLOW (cfs): 5.0 (4/1-9/30) <br /> <br />AVE DEPTH (ft): 0.37-0.41 <br />\ WET PERIM.: 63\-65\ <br />AVE VEL. (fps): 0.98-1.05 <br />required to preserve the <br />flow (2 cfs) requirement based on <br /> <br />REMARKS: 5.0 cfs meets 3 of 3 criteria and is <br />fishery in this reach. Lower winter <br />DOW biological recommendation <br /> <br />WATER AVAILABILITY <br />METHOD: Estimated from Lakewood <br />AVERAGE <br />OCT NOV DEC JAN FEB <br />2.6 2.2 2.1 2.0 2.0 <br />IMPORTED WATER: None. <br />INBASIN DIVERSIONS: <br />REMARKS: See attached hydrograph. <br />Donated rights provide water <br /> <br />Gage <br />MONTHLY FLOWS (cfs) <br />MAR APR MAY JON. JUL <br />2.3 4.2 15.6 60.5 67.5 <br />TRANSBASIN DIVS: None. <br /> <br />AUG <br />23.6 <br /> <br />SEP <br />5.0 <br /> <br />for appropriation in this reach. <br /> <br />CONSULTATIONS <br />DOW: Jay Skinner <br />DWR: Alan Berryman <br /> <br />01/19/93 <br />02/23/93 <br /> <br />DATE: ZI2.S')3. <br /> <br /> <br />PREPARED BY: Baessler <br /> <br />APPROVED BY: <br />