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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 /> <br />Bill Owens <br />Governor <br /> <br />FROM: <br /> <br />Colorado Water Conservation Board Members <br /> <br />Bruce Johnson, P.E. ~~~ r <br />Mike Serlet, P.E., Chief :J <br />Water Supply Planning an Finance Section <br /> <br />Greg E. Walcher <br />Executive Director <br /> <br />TO: <br /> <br />Rod Kuharich <br />CWCB Director <br /> <br />Dan McAuliffe <br />Deputy Director <br /> <br />DATE: <br /> <br />November 15, 2002 <br /> <br />SUBJECT: Agenda Item 20c, November 25-26, 2002 Board Meeting <br />Water Supply Planning and Finance Section - New Loans <br />Surface Creek Ditch and Reservoir Company - Hotel Twin Reservoir <br />Rehabilitation <br /> <br />Introduction <br /> <br />The Surface Creek Ditch and Reservoir Company (SCD & RC) is applying for a $265,000 Small <br />Project Loan for permanent financing to rebuild the dam at their Hotel (Twin Lakes) Reservoir. The <br />estimated total cost of the project is $363,500. Please see the attached project summary and map. <br /> <br />Backaround <br /> <br />SCD & RC operates a system of 18 reservoirs on Grand Mesa in Delta County providing <br />agricultural irrigation water to 2384 acres. The service area encompasses an area of about 6000 <br />acres in and around Cedaredge, and water is used primarily for agricultural purposes, with a small <br />amount of municipal ownership (6%). SCD & RC pays assessments to Grand Mesa Water Users <br />(GMWU) based on the amount of water run. <br /> <br />Hotel Twin Reservoir and Dam - Is a Class 1 Dam with a capacity of 549 acre-ft and a 35 acre <br />surface area. The dam height is 21.0 feet with a crest length of 255 feet. In July 1995 the <br />classification of the dam changed from Class 2 to Class 1 because of the potential for significant <br />property damage and loss of life. The dam has a history of seepage problems dating back to the <br />early 1990's and several temporary repairs have been undertaken. In 1995 repairs were completed <br />to re-line the outlet pipe and extend the service spillway pipe. In September 2000, with the <br />installation of a temporary drain system, the State Engineer's Office (SEO) issued an order <br />restricting the maximum level to 5' below the spillway crest. In May 2001, inspection by the SEO <br />identified signs of structural weakness, principally due to excessive uncontrolled seepage. <br />Following the end of the 2001 irrigation season, SCD & RC initiated geo-technical investigations on <br />the dam, and in October 2001 portions of the downstream embankment were excavated to remove <br /> <br />Flood Protection · Water Supply Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation and Drought Planning <br />