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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 />- <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />'I <br /> -, <br />I ;c. <br /> <br />Woodward-Clyde <br />Consultants <br /> <br />ICA. <br />., <br /> <br />A- P PENO/'i. e <br /> <br />Engineering & sciences applied to the earth & its environment <br /> <br />October 26, 1992 <br /> <br />Division of Water Resources <br />818 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203 <br /> <br />Attention: <br /> <br />Mr. Hal Simpson <br />State Engineer <br /> <br />Subject: <br /> <br />Emergency Repair Program Construction Report, Beaver Reservoir, <br />Water Division 4, Water District 40, WCC Project No. 23067 <br /> <br />Dear Mr. Simpson: <br /> <br />Woodward-Clyde Consultants (WCC) has been retained by the Beaver Reservoir <br />Company (BRC) of Paonia, Colorado to provide" technical guidance for repairs to <br />. Beaver Reservoir Dam. The first phase-ofth?.lepair program, consisting of excavating <br />and capping the existing sinkholes as a tempora.ry-solution to the foundation seepage <br />and sinkhole problem has now been completed. This report includes WCC's <br />observations during the Phase I or Emergency Repair Program. <br />, , <br /> <br />Most of the emergency repair work-was. observed from September 30, 1992 to October <br />3, 1992 by Mr. Gus Klimek ofWCC. . Mr. Jim Norfleet of your office in Montrose, <br />Colorado made two site visits during the course of the work. Final backfilling and <br />contouring was completed-by 'Farnsworth Construction on October 5, 1992. The <br />-- " <br />Emergency Repair Program consisted of capping existing sinkholes in the upstream <br />abutment areas. The caps were constructed with multiple layers of soil and a geotextile <br />materiliJ.to form a low permeability cap underlain by a graded filter. Guidance for the <br />", ' <br />work was provided in the WCC document titled "Technical Specifications For <br />Construction of Sinkhole Caps, Beaver Reservoir Emergency Repair Program," a copy <br />, <br />of which was previously submitted to your office. <br /> <br />23067/LE8 10-30-92 (1:38pm)JRPTIl <br /> <br />Stanford Place 3, Suite 1000 . 4582 South Ulster Street. Denver, Colorado 80237-2637 <br />303.694.2770 . Fax 303.694.3946 <br />