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• • <br />Existing Water Right Information <br />Staff has analyzed the water rights tabulation and consulted with the Division Engineer Office <br />(DEO) to identify any potential water availability problems. There are five decreed surface <br />diversions located upstream of the proposed instream flow segment. Three are located on South <br />Fork Big Creek: Plainwell Ditch, East Lynne Ditch and Independence Ditch. Two are located <br />on Wheeler Creek: Akers Ditch and Wheeler Ditch. These decreed rights total 131.5 cfs above <br />the proposed instream flow segment. To provide an estimate of the cumulative diversions, the <br />maximum diversion (the five diversions summed) occurred in 1973 with a total of 127 cfs. <br />There are no diversion rights downstream of the subject segment in Colorado. From its analysis <br />staff has determined that water is available for appropriation on South Fork Big Creek, between <br />its confluence with Wheeler Creek and the Colorado — Wyoming border, to preserve the natural <br />environment to a reasonable degree without limiting or foreclosing the exercise of valid water <br />rights. <br />CWCB Staffs Instream Flow Recommendation <br />Based on the CDOW recommendation, staff recommends the Board form its intent to appropriate <br />on the following stream reach: <br />Segment: <br />Upper Terminus: Confluence with Wheeler Creek <br />(Latitude 40° 58' 51.4" N) (Longitude 106° 31' 51.4" W) <br />UTM = 4537770.6 N 371206.8 E <br />SW SE S30 T12N R81W; 6th PM <br />1969' West of East Section Line; 1141' South of North Section Line <br />Lower Terminus: Colorado - Wyoming Border <br />(Latitude 41 ° 0' 6.8" N) (Longitude 106° 31' 34.8" W) <br />UTM = 4540089.2 N 371634.2 E <br />SE NE S19 T 12N R81 W; 6th PM <br />301' West of East Section Line; 2' North of South Section Line <br />Watershed: Upper North Platte (HUC #: 10 180002) <br />County: Jackson <br />Length: Approximately 1.9 miles <br />USGS Quad(s): Pearl <br />Flow Recommendation: 5.0 cfs (December 1 to February 29) <br />8.2 cfs (March 1 to April 30) <br />10.2 cfs (May 1 to August 31) <br />8.2 cfs (September 1 to November 30) <br />