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order to provide water service to the District for any extended delivery system down <br />time, additional raw and/or treated water storage would be required in the Brush Creek <br />basin. It would be prudent for the District to maintain a raw water reserve in event of a <br />catastrophic failure of the primary delivery systems. A reserve storage capacity of up to <br />3 weeks of District potable water usage was examined, which is equal to 105 ac-ft for <br />the current District commitments (Existing Municipal Demand With Base Village and <br />Redevelopment). <br />DEMAND SCENARIOS EXAMINED <br />Three Demand Scenarios were assembled and utilized in the model to examine <br />each drought analysis period, 1977 and 2002 - 2003. Each Demand Scenario includes <br />municipal demand from one Level of Development, as described in the above section, <br />Municipal Uses Within the District, and demands for Snowmaking (at the Snowmass Ski <br />Area), contractual deliveries to Brush Creek Metropolitan District and Wildcat Ranch, <br />and incidental uses including treatment plant backwashing. Each Demand Scenario <br />assembled is described below: <br />1. Total Existing Municipal Demand With Base Village and Redevelopment. <br />This Demand Scenario includes demand resulting from the Existing Municipal <br />Demand With Base Village and Redevelopment level of Development, and <br />demands for Snowmaking, Brush Creek Metropolitan District, Wildcat Ranch, <br />and incidental uses including treatment plant backwashing. <br />2. Total District Build-Out. This Demand Scenario includes demand resulting <br />from the Total Build-Out Level of Development and demands for <br />Snowmaking, Brush Creek Metropolitan District, Wildcat Ranch, and <br />incidental uses including treatment plant backwashing. <br />3. Total Build-Out With Reserve. This Demand Scenario includes demand <br />resulting from the Total Build-Out With Reserve Level of Development and <br />demands for Snowmaking, Brush Creek Metropolitan District, Wildcat Ranch, <br />and incidental uses including treatment plant backwashing. <br />As noted above, a Stream Flow Stewardship Goal of 7 cfs was adopted, and <br />subsequently modeled for each of the three Demand Side Scenarios. Model runs for <br />each Demand Side Scenario and each drought period were initially operated assuming <br />no raw water storage would be available to the District. Subsequently, each Demand <br />Page 16 <br />