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<br />STATE OF COLORADO <br /> <br />Colorado Water Conservation Board <br /> <br />Department of Natural Resources <br />1313 Sherman Street, Room 721 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3441 <br />FAX: (303) 866-4474 <br />www.cwcb.state.co.us <br /> <br /> <br />MEMORANDUM <br />(REVISED AFTER BOARD MEETING) <br /> <br />Bill Owens <br />Governor <br /> <br />TO: <br /> <br />Colorado Water Conservation Board Members <br /> <br />Russell George <br />Executive Director <br /> <br />FROM: <br /> <br />Kirk Russell, P.E. <br />Mike Serlet, P.E., Chief <br />Water Supply Planning and Finance Section <br /> <br />Rod Kuharich <br />CWCB Director <br /> <br />Rick Brown <br />Acting Deputy <br />Director <br /> <br />DATE: November 8,2005 (Revised November 17,2005) <br /> <br />SUBJECT: Agenda Item 23a, November 15-16,2005 Board Meeting <br />Water Supply Planning and Finance Section - New Loans <br />Highland Ditch Company - Foothills Reservoir Dam Repair Project <br /> <br />Introduction <br /> <br />The Highland Ditch Company (Company) is applying for a loan from the Colorado Water <br />Conservation Board in the amount of $540,000 for the Foothills Reservoir Dam Repair Project <br />(Project). The Foothills Reservoir (Reservoir) is located west of Longmont, Colorado, and is <br />currently restricted by the State Engineer's Office to 3,080 ac-ft. This is about 70% of the 4,320 ac-ft <br />capacity of the Reservoir. The Reservoir is owned and operated by the Company for irrigation uses. <br />The Project will include excavating a core trench into the center of the dam to cut off seepage and <br />add stability. The Project is expected to cost $600,000 and is currently under construction utilizing <br />bridge financing. See attached Project Data Sheet for a location map and a project summary. <br /> <br />Backaround <br /> <br />Foothills Reservoir Dam is a Class I, Intermediate Dam. The Dam was rehabilitated in 2001 with the <br />assistance of a CWCB Loan (Contract #C150015). The 2001 project included the construction of a <br />new spillway, drainage system on the dam face and a toe drain. In 2003, the reservoir was filled <br />above gage height 39 feet for the first time since the 1970's and excessive seepage was noted in <br />the drain system. The reservoir has since been limited to gage height 39 feet. In January 2004, the <br />Company investigated the dam to determine the cause of excess seepage. It was determined that <br />the cause was a layer of poorly compacted shale. The Company decided to repair the dam by <br />installing a clay core trench in the upper portion of the dam to cut off seepage. Additional storage <br />restrictions may be necessary if the dam continues to deteriorate due to internal seepage. <br /> <br />The Company leases the reservoir during the summer months to a fishing club, but the club will not <br />be adversely impacted by the construction. The Company retains the right in its lease with the club <br />to take whatever measures are necessary to maintain and operate the reservoir without <br />interference by the fishing club. <br /> <br />Flood Protection. Water Supply Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation and Drought Planning <br />