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Annual Diversions for the 1950 to 2002 study period: <br />Average (1950-2002) = 99 acre-feet <br />Maximum (1957) = 475 acre-feet <br />Minimum (various years) = 0.0 acre-feet. <br />The preceding data is presented in water year due to the availability of data at the time <br />this report was prepared. If this data is used for future modeling efforts, it is <br />recommended that the data be analyzed in calendar year. Monthly diversions for Boreas <br />Pass Ditch are presented in Table 2. <br />WATER RIGHTS <br />Boreas Pass Ditch has a decreed direct flow water right for 16.0 cfs absolute from Indiana Creek. <br />There is no associated storage on the Western Slope. The Boreas Pass Ditch water right is <br />relatively senior on the Colorado River. Water diverted through Boreas Pass Ditch is processed <br />in the Englewood Water Treatment Plant for use within Englewood. Table 1 presents the details <br />of the associated direct flow right. <br />Table 1 <br />Direct Flow Water Rights <br />Structure Appropriation Adjudication Administration Decreed <br /> <br />Name Source <br />Date <br />Date <br />No. <br />Rate Use <br />Boreas Pass Indiana 1/1/1910 10/26/1937 30184.21915 16.0 cfs Irrigation <br />Ditch Creek Absolute <br />Colorado Water Rights Tabularion <br />Compact and Other Legal Considerations: Per Case CA 1709, the City of Englewood shall <br />not ask for more than 15.5 cfs and any final decree will not exceed a transmountain <br />diversion of 1,100 acre-feet of water in any calendar year. <br />OPERATIONAL INFORMATION <br />Boreas Pass Ditch generally begins diverting in early-June, with diversions occasionally <br />continuing through mid-August. The peak discharge occurs in June or early July and the flow <br />tapers off to zero by September. <br />Boreas Pass Ditch does not interact with any other diversions. Water diverted through Boreas <br />Pass Ditch is transported down through the South Platte Drainage and ends up in Chatfield <br />Reservoir. From Chatfield Reservoir, water is either pumped up to McClellan Reservoir for <br />diversion through City Ditch or water is released down the South Platte for diversion at the South <br />Platte Union Avenue Intake. Both City Ditch and the South Platte Union Avenue Intake deliver <br />water to the Englewood Water Treatment Plant. Boreas Pass Ditch water is processed in the <br />Water Treatment Plant for use within Englewood. <br />BoreasPassDitch.doc 6 of 8 <br />