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<br />Project Two: <br /> <br />SYLVAN DALE LEAK <br /> <br />The purpose of this project is to reduce the water loss in this approximately 250" section of ditch. The <br />ditch is perched on the side of an unstable bluff. <br /> <br />Three alternatives were considered: <br /> <br />1. Continue to run the system ignoring the water loss in this section. <br />2. Line the ditch with clay to reduce the leaks and seep in this section of ditch. The project would <br />involve lining the ditch on the bottom and sides with 24" clay lining. Poyacrylamide (PAM) a canal <br />sealing product will be applied during clay lining operations on approximately 6" to 10" lifts. <br />3. Install pipe to reduce water loss and prevent a slide from effecting the flow of water in the ditch. This <br />will also reduce maintenance costs. <br /> <br />Alternative number three: Feasibility Study for the installation of approximately 225 feet of 60-inch ADS <br />culvert pipe. Pipe shall extend from the existing tunnel upstream where it will terminate at the existing 3- <br />sided concrete ditch section. <br /> <br />Scope of work includes removing the existing vegetation as required allowing for the installation of the <br />new 60-inch culvert pipe. Purchasing and installing the new 60-inch ADS pipe including back filling <br />utilizing the existing onsite soils. Shaping the transitions section on both ends of the culvert pipe to match <br />the existing ditch banks. The new culvert pipe is to be placed as close to the uphill side ditch bank as <br />practical. <br /> <br />The South Side Ditch Company has developed the preliminary cost estimates for this project. The cost <br />breakdown is summarized in Table 2. <br /> <br />Table 2. Sylvan Dale Leak: Project Two <br />Proiect Cost <br />Number of shareholders <br />Estimated water loss 720 acft @ $5.000 <br />Repair cost per acft (without CWCB loan costs) <br />Repair cost per share (without CWCB loan costs) <br /> <br />$25,375 <br />90 <br />$3,600,000 <br />$35.25 <br />$95.75 <br /> <br />Page 9 <br /> <br />South Side Ditch Company <br />Feasibility Study <br />2003 <br />