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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 />Part 1: The raw water diversion and delivery system to either the existing treatment plant or the <br /> <br />existing Morrison Operating Reservoir. <br /> <br />Part 2: The Cooley Reservoir system, which would include a raw water pumping station (taking <br />suction from the Operating Reservoir), connecting two-way transmission line, and the <br />inlet/outlet structure at Cooley Reservoir, <br /> <br />Part 2 System <br />The preliminary design for Part 2 was developed in the 1994 WRC Report - and was incorporated <br />into the approved Master Plan without significant modifications. Because of this similarity, and <br />since the CWCB has already stipulated that the Part 2 supply/storage facilities will not be included <br />in an initial project, no further discussion of Part 2 facilities is included herein. <br /> <br />Part 1 System <br />The existing raw water delivery system consists of: <br /> <br />a. A concrete diversion dam in Bear Creek, about o/.-mile upstream from Morrison, <br /> <br />b, Approximately 800 feet of old 10-inch steel gravity line, which traverses a steep talus slope <br />and goes through a rock tunnel. <br /> <br />c. Old masonry settling basins. <br /> <br />d. Approximately 3,000 linear feet of 12-inch cast iron pipe transmission line installed around <br />1961. <br /> <br />The Part 1 system is described in more detail in Chapter II of the Master Plan (refer to pages 7 <br />through 10), <br /> <br />The 1978 Master Plan (Wright-McLaughlin Engineers), as well as later studies, proposed that the <br />existing facilities be improved, and that the gravity diversion concept be retained, <br /> <br />The 1994 WRC Report, which was submitted to the CWCB as a basis for the original financial <br />commitment, developed and evaluated two alternatives for improving the Part 1 system, This <br />evaluation was further developed in Addendum 1 by WRC Engineering, dated November, 1995, <br />WRC described four alternative plans: <br /> <br />70-080.039P:REPORT <br /> <br />II-2 <br />