Laserfiche WebLink
<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />ALTERNATIVES EVALUATED <br /> <br />Three alternatives have been considered with regard to recovering storage loss due to siltation. <br />They include: (1) Do nothing; (2) Construct another reservoir to store the 2,600 acre-feet, and (3) <br />Excavate and remove soil material from the reservoir storage basin to recover a portion of the lost <br />storage. An assessment of each alternative follows. <br /> <br />Alternative # 1 <br /> <br />One course of action considered was the DO NOTHING AL TERNA TIVE. This option is not <br />viable as it does not address the problem of lost storage and potential loss of the water right. This <br />alternative does not add any water to the system and does not provide any positive impacts. <br />Although there is no current cost to take this action, there is a cost in lost water and lost crop <br />revenue. <br /> <br />Alternative #2 <br /> <br />The second alternative considered was to construct a new storage reservoir to hold the 2,600 acre- <br />feet of lost storage capacity. This alternative was deemed viable, especially since it has the <br />capability to recover all the lost storage. However, this was seen as a more long term solution that <br />would take many years to bring to fruition and was not considered as a prime alternative at this <br />time. <br /> <br />Alternative #3 <br /> <br />The third alternative explored was to remove material from the reservoir to recapture a portion <br />of the lost storage. Based on the amount of area necessary to store the excavated material and <br />based on the area that the contractor believes can be excavated with conventional equipment, it <br />was determined that approximately 1,000,000 cubic yards4e~arth materials would be targeted for <br />removal from the reservoir. This provides an additionaf620~,9te-feet of storage which allows the <br />WRCC to supply irrigation water for an additional 3 ~This is significant because the total <br />number of days the system normally runs is 30 to 45 days. <br /> <br />A c_-9f <br />rut 0 () <br /> <br />1 <br /> <br />SELECTED ALTERNATIVE <br /> <br />The WRCC has chosen Alternative 3 as the desired alternative. This alternative is the least <br />costly, in terms of cost per acre-feet of storage, and can be initiated immediately. Alternative 2 <br />is a viable alternative but would take several years to plan, permit, and bring to completion. <br />Alternative 3 allows them to recover lost storage at a reasonable cost with a minimum of design <br />and regulatory control. <br /> <br />Windsor Reservoir & Canal Feasibility Study <br /> <br />Page 7 <br />