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<br />#8 <br /> <br />Rueter-Hess Reservoir Operational Philosophy <br /> <br />,/ Operated consistent with Douglas County Water Resources Authority <br />Resolution, which calls for maximizing of in-basin resources, including <br />conjunctive use. <br /> <br />,/ In-priority Cherry Creek surface flows, as well as diversion from <br />Cherry Creek alluvial wells, will be maximized to the extent possible. <br />It is envisioned that a forebay would be used on Cherry Creek to allow <br />the diversion of high-flow, low-duration flows in an efficient manner. <br />Alluvial wells, and potentially Ranney collectors, could be used to <br />supplement water diverted into the forebay. <br /> <br />,/ The reservoir will be built to a capacity to allow sufficient carryover <br />storage to hold the periodic in-priority flows described above. <br /> <br />,/ EfHuent from the advanced wastewater treatment process will be <br />pumped to the reservoir whenever feasible to allow year-round storage <br />of efHuent that can then be used for peaking in the summertime <br />months. An ancillary benefit of this mode of operation is that <br />phosphorus input to Cherry Creek and ultimately to Cherry Creek <br />Reservoir would be mlnimi7ed. <br /> <br />,/ Water from low-yielding (Denver) and/or low-quality (Laramie-Fox <br />Hills) Denver Basin aquifer wells will be introduced to the reservoir on <br />an annual basis to reduce the peak loading on Denver Basin aquifer <br />wells. Additional Denver Basin aquifer water may be pumped to the <br />reservoir from remote well fields as a means to maximize yield from <br />the Denver Basin aquifers and to spread out the pumping interference <br />effects from the pumping of these wells. <br /> <br />,/ Denver Basin well fields will be established in the vicinity of Rueter- <br />Hess Reservoir to allow a conjunctive use plan whereby excess surface <br />water can be injected into the Dawson and Arapahoe aquifers to utilize <br />these underground storage vessels. This conjunctive use plan will take <br />place during times when excess surface water supplies are available <br />that can't be stored in the reservoir due to space limitations. <br /> <br />,/ A minlmum reserve pool will likely be maintained at Rueter-Hess <br />Reservoir to provide the District with an emergency water supply and <br />to provide additional aesthetic value to the reservoir. <br />