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<br />k 70- J ", <br /> , , <br /> , ) <br /> , <br /> , <br /> , <br /> , I <br /> \ , <br /> J I <br /> , , <br /> , , I <br /> L , <br /> , <br />- --1 , <br /> I <br /> . <br /> , <br /> , <br /> , <br /> , <br /> , <br /> \ <br /> , <br /> I <br />~ I <br /> , <br /> I <br /> \ <br /> I <br /> , <br /> , <br /> , <br /> , <br />, , , , \ , <br /> <br />.... ! <br />- HISTORICAL sTORAGE VOLUME: <br />~~ -.. ALTERNATIVE STORAGE VOLlJt{E <br /> <br /> ,... <br /> . <br /> C <br /> R <br />i E <br /> F "eo <br /> E <br /> E <br /> T <br /> <br />seo <br /> <br />. <br />. <br /> <br />. <br /> <br />,. <br /> <br />,. <br /> <br />.. <br /> <br />.. <br /> <br />3. <br /> <br />3. <br /> <br />.. <br /> <br />MONTH (Beginning in November 1972) <br />Figure 7. Big Beaver Reservoir. <br /> <br />treated sewage effluent. This scheme depends upon <br />previously unappropr'lated waters imported from out- <br />side the basin being used by the city and then being <br />made available for reuse downstream of the city <br />sewage treatment plant for diversion to the power <br />plant. Exchanges of water between the city and <br />reservoir company are key to the plan. <br /> <br />. . . water exchange agreements <br />must be made among various <br />direct-flow and storage-right <br />owners to maintain uniformity in <br />water delivery to the cooling pond. <br /> <br />The question examined by the model included: <br />Can treated sewage efiluenl be managed to supply <br />by 1985 the initial filling of the cooling pond, and can <br /> <br />L <br /> <br />this treated water supply a minimum of 4,200 acre- <br />feet to the pond annually? For this case study <br />potential water supply includes direct-flow river <br />water, Colorado-Big Thompson project water, reser- <br />voir storage water within the basin and all transbasin <br />diversions into the basin. Borrowing or water ex- <br />change arrangements must be made among various <br />direct-flow and storage-right owners to maintain <br />uniformity in water delivery to the cooling pond. After <br />the pond is filled, a stable pool elevation within <br />reasonable limits must be maintained. <br />Figure 8 shows the main components of the basin <br />system which are involved in the exchanges and <br />routing necessary to accomplish delivery of required <br />amounts of water from the treated sewer effluent to <br />the cooling pond. <br />Simulation results show that, assuming repetition <br />of approximately the same weather sequences ex- <br />perienced in the past 25 years, the pond can be filled <br />by 1985 without injury to other water-right owners as <br /> <br />7 <br />