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Table 11 <br />Principal Exchange Water Rights <br />Exchange-To Point Water Approp. Admin <br />Water Court Amount Comment <br />No <br />. <br />. <br />Source Date Case No. <br />Various, including <br />07/24/1921 <br />2938626137 <br />CA3635 605 cfs Abs. <br />8) Denver Conduit No. 20 <br />South Platte 2 395 cfs Cond. <br />9) Strontia Springs River <br />Reservoir TOTAL 3,000 cfs <br />10) Cheesman Reservoir <br />6) Antero Reservoir South Platte 04/01/1935 31136.0 CA3286 85,564 ac-ft Abs. <br /> River <br />7) Eleven Mile Reservoir South Platte <br />04/01/1935 <br />31136.0 <br />CA3286 81,917 ac-ft Abs. <br />10) Cheesman Reservoir River 79,061 ac-ft Abs. <br /> W8783-~~ 918 ac-ft Abs. <br />13) Chatfield Reservoir South Platte 12/28/1977 46748.0 CA3635 54,082 ac-ft Cond., incl. in <br /> River 3,000 cfs limit <br /> TOTAL 55,000 ac-ft <br />Source: Denver Water and HydroBase (Version 20060618) <br />OPERATIONAL INFORMATION <br />Water Demands <br />As stated earlier, the Denver Water collection system is operated to enhance the flexibility <br />between two geographic systems. In general, the Northern system is primarily operated to supply <br />water to meet Denver Water's service contract and fixed contract agreements with northern <br />municipalities (currently about 30,000 ac-ft/yr). The Southern system is generally operated to <br />meet demands within the City and County of Denver and eastern municipalities. The Southern <br />system typically supplies 80 to 85 percent of the raw water demand for the Denver Water system <br />but, as stated above, Denver Water can move water around and throughout their system to ensure <br />water deliveries are made. <br />Water deliveries to be used for potable resources are treated at the Moffat, Marston, or Foothills <br />water treatment plants. In addition, some water is delivered for industrial and irrigation uses and <br />to maintain instream minimum flow requirements along the South Platte River. <br />Denver Water's total demand was approximately 285,000 ac-ft/yr in 2005, corresponding with a <br />population of about 1.2 million in the City and County of Denver and surrounding areas. This <br />demand level equates to approximately 210 gallons per capita per day (gpcd). The currently <br />anticipated future water demand level for the year 2050 is about 420,000 ac-ft/yr for a population <br />of about 2.3 million, which corresponds to an overall unit demand of about 165 gpcd. <br />Approximately 50 to 55 percent of the annual demand is delivered to satisfy a typical, year-round <br />municipal demand. The remaining 45 to 50 percent of the annual demand is delivered to satisfy <br />commercial, industrial, and other uses. This latter demand typically has higher year-round <br />monthly deliveries than the residential demand curve but still has shows a summer peak <br />associated with irrigation demands that are part of the commercial, industrial, and other demands <br />supplied by Denver Water's system. <br />Denver Water Board Operating Memorandum 33 of 40 <br />