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I I I I I I I I I I I I I I I I I I I ':', "'... 'Ji5 oJ ~ oJ J . l Conservancy District demonstrate the concept's viability. Numerous similar recharge and augmentation plans are operated at other locations along the South Platte River, without the computer management contemplated by the Beebe Draw augmentation plan. In California and Arizona, similar alluvial storage projects have operated successfully for years. The water infiltrated into the Beebe Draw alluvium can be integrated into the Barr Lake Plan in several ways: I. The water can be directly withdrawn for municipal uses, subject to traditional municipal treatment processes. Alternatively, the water could be retained for drought relief, releasing current municipal supplies held in reserve for current use. Simply having water in reserve in the alluvium would increase existing municipal supplies by pennitting "invasion" of currently held reserves. 2. The Beebe Draw alluvium could be managed for storage of west slope or Two Forks water. The capacity of the alluvium could replace a substantial portion of the usable Two Forks capacity without construction ofa darn. 3. Water infiltrated into the Beebe Draw alluvium could be used for pre-payment of depletions against the Companies' priorities. This could reduce or even eliminate the need for dry-year payback resulting in a drought yield to municipalities, substantially exceeding what they could otherwise obtain. 4. Depletions from well pumping in Beebe Draw, under FRICO's augmentation plan, are accounted for as reduced return flows into Milton Reservoir. Depletions to Milton Reservoir could be made up by allowing Metro return flows to remain in the South Platte River for re-diversion to Milton at Platteville. Windy Gap water from the Northern District can also be used for 13