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8.4.6 Selected Reservoir Project <br />The company has chosen Reservoir Alternative 3 which is the construction of a 50-Acre Ft Reservoir <br />with HDPE Embankments and a Clay Core Base. The cost of this alternative is estimated at <br />approximately $ 536,000. <br />Work included in Reservoir Alternative 3 is as follows: <br />1. Construct an approximately 50 acre-foot reservoir located near the end of the <br />Ogilvy Ditch. This reservoir would serve to provide the additional augmentation <br />flows needed for winter release. <br />2. The reservoir will be constructed using an HDPE liner on the embankments to <br />prevent against erosion and seepage through the embankments. A compacted <br />clay liner will be used along the base of the reservoir to reduce seepage and <br />provide protection against damage from ground water intrusion and gas build up <br />beneath the reservoir. <br />3. The new reservoir will be constructed using a new outlet structure that will feed <br />water to the current Ogilvy ditch discharge, which feeds Crow Creek. <br />4. The new reservoir will also use the existing Ogilvy ditch outlet that feeds the <br />small detention reservoir constructed by OLIC. <br />8.5 TOTAL PROJECT ALTERNATIVES EVALUATED <br />A range of alternatives were considered for the augmentation project including 1) No action, 2) <br />Purchase of the water rights and construction of the recharge reservoirs, and 3) Purchase of the water <br />rights, construction of the recharge reservoirs and construction of a new 50 acre-ft reservoir. <br />8. S.1 No Action Alternative <br />One course of action considered was no action in pursuing water rights acquisitions and facility <br />development. Under this alternative, OAC could potentially operate its wells for a short period of <br />time utilizing water leases, just as it has done for the past several years. However, a permanent plan <br />for augmentation cannot be obtained if no action is pursued and ultimately the OAC would no longer <br />be able to obtain approval of the substitute water supply plan and all of the membership wells would <br />be required to discontinue operation as a result. The OAC members are, by and large, farmers who <br />rely on their crops for their livelihood. If they are unable to utilize their wells, it is likely that crop <br />yields will be reduced, or perhaps even eliminated. For this reason, the no action alternative is <br />considered unacceptable to the OAC. <br />Feasibility Study of the Ogilvy Augmentation Company Page 15 <br />Well Augmentation Project <br />