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I I I I I I I I I I I I I I I I I I I 0662 ditch rider would set the State headgates for the proper number of shares, the same as for other shareholders. Of the water obtained at the State headgates, only that portion corresponding to actual consumptive use from the historic use land could be transported to storage in John Martin Reservoir. The remaining water would be left in the Arkansas River system to compensate for historic return flow. The State Engineer would deduct transit losses from water deliveries for storage in John Martin Reservoir, and an average of 4,704 acre-feet of storable water could be delivered to the reservoir each year under this plan. The report also shows how the transfer plan and the proposed permanent pool operation would have worked under historic conditions during compact years 1949-73. The beginning per- manent pool storage was assumed to be 10,000 acre-feet. The permanent pool was allowed to ride on top of the conservation pool to a maximum size of 15,000 acre-feet except the reser- voir's flood control storage could not be invaded by more than 10,000 acre-feet. Evaporation was deducted on a daily basis from the additional surface area caused by adding the per- manent pool to the conservation pool. During this 25-year period, the minimum permanent pool storage was 6,800 acre- feet and the average was 12,400 acre-feet. An annual average of 399 acre-feet of storable water could not be utilized under these conditions and was released for the benefit of irri- gators below John Martin Dam. The State owns or has the use of other water rights that will be incorporated in the per- manent pool plan, and inclusion of these water rights in the plan will substantially increase the benefits to irrigators below the dam. -2-