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OU liff;:! '-.l . . PLANS OF DEVELOP1.aENT 6p Five possible plans for providing the oity of Colorado Springs with additional water are described subsequently. Reference to the roup at the buck of this report will faoilitate fo11owing~through. All plans nnd estimates are bused on reoonnaissanoe only; ~ore detailed studies will be needed to arrive at firm oosts and to prepare speoifioations. The five possible plans are listed in the foll~,ing tabulation in the order of thoir logioal development and in the ordor of subsequent dosoriptions. Quuntity ~ aore~feet I I Upper Seven Lakos Reservoir and I J Beavor Creek I St. Johns Tunnel I Reservoir No.4 J Diversion from Oil Creek I Catamount I Oil Creek to No. Catmaount Creek I Creek vatershod I Beaver Creek I Pipeline via Sand Creek City limits of I below Skaguay and Colorado HighvJay 115 I Colo. Springs I BluepSouth Pump line fro,u Eleven ~.1ile I Catamount I Platto Pro oct I Res. to Cc.ta..""ount Creek I Croek vJatershed B ue~South I Pump line from Eleven Mile Catamount Platte project I Res.. to Cata..':lount _Croek Crook *Includos 40,000 acre-foet for irrigation uso in the Fountain Valloy. Source RoutEl' Delivery point . . 2.700 2,000 10.300 5.000 45.000* Uppor Beaver Creek Plan 7. This plccn would provido Colorado Springs with 2, 700 aore~feot of municipal water from the Upper Beuver Creek watershod. It represonts a refinement of tho plan for supplying tho sumo muount of water that was described in the prelL""inary report of the potentL~l Gunnison~rkansas Project. Under this plan, the water weuld be pumped approximately 150 feet upward from Middle Beaver Creek into the existing Colorado Springs municipal supply system beginning with Reservoirs 4 and 5 and the st. Jolh~s Tunnel which empties into Ruxton Creek. The pumped water, together with the present supply would be regulated in Seven Lakes Reserveirs and released into the existing 20-inch pipeline to the town ef ;,funitou. The' water weuld generate energy en route in the municipally-owned Ruxton nnd Maniteu hydroeleotric pewerplants of the Colorado Springs systel:'. 8. .The annual diversion of 2.700 aore-feet from the Beaver Creek watershed weuld reduce the water supply fer the downstream Skaguay Reser- voir. and thereby result in an annual less of about 2,500.000 kilcwlatthours of energy from the Skaguay hydroelectric plant. both facilities owned and operated by the Southern Colorado Power COlOlpany. Estirotes of the annual gain and loss in hydroelectric powor production as a result of the diver- sion are as followsl 3