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Colorado's Plan For Future Depletions January 12, 1998 <br />Documentation as Required by Cooperative Agreement, Page 12 <br />Millestones W6-1, W7-1, W8-1, and Tab 3B(I)E <br />water reuse use pattern for that month x <br />monthly municipal consumptive use factor for that month x-1.0 <br />When new municipal water demand is met by water reuse, it is usually accomplished via <br />exchanges and plans of augmentation. Under these approaches, only the depletions associated <br />with the new demands must be offset with reusable exchange/augmentation supplies. <br />Therefore, the monthly municipal consumptive use factor is the appropriate measure for <br />quantifying the depletive effects of water reuse. <br />5.2.6 Native South Platte Flow Development <br />For each region, the accretions/depletions for each month from South Platte Flow Development <br />are calculated as follows: <br />(regional new municipal water use x <br />% of South Platte flow development in each region's water supply mix x <br />South Platte storage diversion pattern for that month x -1.0) <br />plus <br />(regional new municipal water use x <br />% of South Platte flow development in each region's water supply mix x <br />South Platte storage use pattern for that month x <br />monthly municipal return flow factor for that month) <br />Additional development of native South Platte flows will occur primarily via storage because <br />virtually all of the unappropriated water occurs during the runoff months of April through July <br />The accretive/depletive effect of native South Platte flow development therefore involves two <br />aspects: diversions into storage and releases from storage to municipal use. The first part of <br />the equation captures the depletive effect of storage while the second part of the equation <br />captures the accretive effect of actual municipal use of previously stored water. <br />5.2.7 Total Accretion/Depletion <br />For each region, the total accretions/depletions for each month are simply the sum of the six <br />source-specific accretions/depletions for that month. <br />6 Cumulative <br />The Cumulative sheet simply depicts the sum of the accretions/depletions associated with the <br />three regions. .