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<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 />existing dam; the second alternative consisted of a partial <br />rehabilitation of the dam and the third alternative <br />considered breaching the dam and modifying the existing <br />distribution system to maintain service to the present <br />users. <br />The first alternative, which considers a complete <br />rehabilitation of the e~isting dam such that a safe <br />structure can be maintained which will also supply the <br />demands of the present users, will require the following <br />repairs be completed. <br />1. Remove and replace the existing outlet works and <br />the original outlet pipe which is located fifteen <br />to twenty feet (15'-20') below the existing <br />outlet. <br />2. Install a toe drain or a toe drain and upstream <br />cutoff trench to the shale formation to control <br />the underseepage. <br />3. Remove the existing concrete facing and replace <br />with riprap and riprap bedding. <br />4. Flatten the upstream and downstream slopes to <br />provide for a safer structure. <br />5. Increase the dam height to provide for extra <br />storage. <br />6. Install a new eIllergency spillway to replace the <br />existing spillway. <br /> <br />vii <br />