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<br />The four plans studied are: <br /> <br />Plan 1. Delivery of 30,000 acre-feet to the Mosca-Hooper <br />area about 10 miles west of the Ill8.in conveyance channel. <br /> <br />Plan 2. Diversio:n of 60,000 acre-feet for delivery of 30,000 <br />acre-feet to the Mosca-Hooper area and 30,000 acre-feet a.bout 12 miles <br />farther westward at u. S. II1ghway 285. <br /> <br />Plan 3. Delivery of 60,000 a.cre-feet to the vicinity of <br />u. S. II1ghway 2135. <br /> <br />Plan 4. Delivery of 60,000 acre-feet to the head oj' the <br />Farmers Union Canal about 6 miles west of U. S. Highway 285. <br /> <br />In general the plans involve constructing a series of <br />relatively level channels westward from the conveyance chA.nnel near <br />San Luis Lake and raising the ch...nn~ls in steps by means of pUIllp lifts <br />until the toe of the fan is reached. From tbis point, pUIllping plants <br />and lengthy discllarge pipes are re~uired to reach disposal. areas. The <br />base of each channel would, start near the ground surface a.t the east <br />end. COJlqlacted emb&:lkment sides would be constructed and the channels <br />excavated westward until a. practical. excavation depth of about 25 feet <br />is attained. At tbis point a pUIllping plant would be iIllltalled to lift <br />water to the next level. <br /> <br />About a mile and a ha.lf east of the Rio Grande Drain the <br />lIl.ope of the ground surface makes it infeasible to continue the step- <br />lift channel design, and pipelines and pUIllping plants are used there- <br />after cOllllllensurate with the lift requirements. <br /> <br />The following monthly distribution of water, Table 1, is <br />based upon the ideal. demands used in the Rio Grande Division report <br />dated December 1955. The delivery schedules for all plans are based on <br />a 9-lIlGnth period of operation. <br /> <br />All plans provide a ma.ximum design capacity of about 125 <br />second-feet sufficient to bannl e 60,000 acre-feet over a 9-month period. <br />Thus, the pumping time for Plan 1 would be ha.lf of that for the other <br />plans, but the facilities prorided in the approximate lO-mile reach west <br />from the conveyance channel are the same for all plans. <br /> <br />r .r -...... " ~ ... <br />'..-' ;~ ....... '1 .....- <br /> <br />3 <br />