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<br />. <br /> <br />. <br /> <br />1.0 INTRODUCTION <br /> <br />1.1 General <br /> <br />Steffen Robertson and Kirsten (U.S.), Inc. (SRK) and Brierley and Lyman Inc. (BU) have prepared <br />this proposal in response to a request from Mr. Lawrence Aubert of the Ute Water Conservancy <br />District (Ute). The request was made verbally on April 30, 1990 following a tour of Ute's existing <br />tunnel and other facilities in the vicinity of Plateau Creek. <br /> <br />The purpose of the work program described in this proposal is to evaluate more thoroughly the <br />technical, permitting, and financial advantages and disadvantages of the Plateau Creek Pipeline <br />alternative recommended by Western Engineers Inc, (WEI) in their October, 1987 feasibility study <br />versus a new tunnel alternative, Based on our initial review of WEI's report and our site <br />observations, we believe that a new tunnel would probably be cost competitive with the WEl option, <br />would certainly be more readily permitted and would be subject to fewer potential environmental <br />impacts in the future, <br /> <br />1.2 Background <br /> <br />Ute Water Conservancy District (UWCD) currently delivers a supply of raw water to the district <br />treatment facility via a 24-inch pipeline, Recent failures in the main raw water pipeline have raised <br />concern about the reliability of the system. WEI was retained by UWCD to perform a study and <br />determine available alternative water delivery systems to reliably meet current and projected <br />demands for high quality water. <br /> <br />In the final study, the WEI report presented six alternatives to provide raw water to the District's <br />treatment plant. WE!'s recommended alternative was to augment the existing 24-inch pipeline with <br />a parallel larger size pipeline, This larger pipeline could be constructed in phases as need arose and <br />cross-connected to the existing pipeline to form an integrated water delivery system, <br /> <br />This recommended alternative would be constructed in three phases, The first phase will consist <br />of 8620 ft of 42-inch and 13,200 ft of 36-inch pipeline, This section of the proposed pipeline will <br />extend down Plateau Canyon to the colorado River to bypass the tunnel. The second and third <br />phases will each add 2 1/2 miles of 36-inch pipeline and armoring of Plateau Creek as necessary, <br /> <br />1 <br />