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I I I I I I I I I I I o Expansion of the existing reservoir at Green Ridge Glade to a total capacity of 5,050 AF (active capacity of 4,550 AF) could eliminate the 100-year deficit. o Construction of a reservoir at Maitland Canyon to impound 4,950 AF (active capacity of 3,950 AF) of water could eliminate the 100-year defici t. o purchasing 7,145 units of the CBT Project (in addition to the projected ownership of 13,455 units under the Design Conditions) could eliminate the 100-year deficit. o purchasing an additional 21.4 cfs of existing No.1 priority direct-flow water rights on the Big Thompson River could reduce the deficit by 2,286 AF. o Purchasing 1,945 CBT units and 17.5 cfs of No.1 priority direct- flow rights in addition to the supplies projected under the Design Conditions (see Table 2) could eliminate the 100-year deficit at the least cost to the City. However, fluctuations in the cost of CBT water, and the cost and availability of direct-flow rights for purchase could reduce the cost-effectiveness of this alternative. I I o Purchasing 1,645 CBT units along with increasing the capacity of Green Ridge Glade to a total capacity of 3,500 AF (active capacity of 3,000 AF) could eliminate the 100-year deficit. This alternative could provide the City with a 30-day emergency storage during the high-demand summer months to provide protection against disruption in delivery of CBT or Vindy Gap supplies and would reduce average annual Transfer Decree spills to 2,367 AFY (compared to 3,116 AFY under the Design Conditions). This alternative could include constructing a reservoir at Maitland Canyon in lieu of expanding Green Ridge Glade, but at approximately twice the cost. I I I o Construction of a 7,350 AF reservoir at Maitland Canyon would protect the City up to nearly the 200-year deficit recurrence interval, and provide a 70-day emergency supply during the summer. Potential additional capabilities in effective management of Transfer Decree waters would also be realized, with average annual Transfer Decree spills reduced to 1,111 AFY. o Vater conservation measures should be included in future water planning to provide "drought insurance" as added protection during drought conditions and to reduce the demand for additional raw water as the City grows. I I o If the City chooses to increase storage capacity (at Green Ridge Glade or Maitland Canyon), it should file an application for a new direct-flow right on the Big Thompson River to be used in conjunction with the storage facility. Potential agreements with other direct-flow water right owners for the exchange of stored Transfer Decree waters should be pursued. -11- I