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4 the left abutment. To accomplis~ this, four pumps would be in- stalled on the toe drains near the river outlet. Although it is not possible to determine definitely the amount of water which may.,need, to be pumped until the reservoir is in operation, it appears that these pumps would suffice for any unforeseen needs for water. The main hatchery would be in the bas in house. I t would contain a 60-jar walleye and a 20-jar northern pike hatchery, and 10 holding basins 8 x 10 x 30 feet in size. A series of 42 oblong rearing ponds consisting of 20, 1/2-acre; 12, 3/4-acre; and 10, I-acre units also are planned. Five,2-acre brood ponds and two sectional race- ways, 8 x 5 x 600 feet, also would be constructed. Water depth in the raceways would be maintained at 2 to 2.5 feet deep. The storage building would be large enough to contain three vehicles, dry feed, a refrigeration unit, a small shop, and an office. Two three-bedroom houses for the permanent employees also would be needed.' The uni t would be staffed wi th two permanent and two part- time employees. Water use for the hatchery and rearing unit would range up to 20 second-feet and should be considered as basically nonconsumptive as it would be passed through the ponds and raceways and returned to the river. There would be a small loss of water bv surface evapo- ration on the ponds. The Bureau of Reclamation has allowed for the water seepage losses in al locating reservoir storage and has indicated that there would be no water right necessary for using seep water. However, it is anticipated that Colorado would not encounter any prob- lems in obtaining water rights if they should be required. It is realized that any initiation of hatchery construction wi 11 be depen- dent upon a secure agreement for an adequate water supply or water rights if necessary. The capital cost of the production unit is estimated at $815,000, based on 1969 price levels. This cost would be shared equally by the Colorado Division of Game, Fish and Parks and the Federal Government. The Division would assume the annual operation, mainte- nance, and replacement costs amounting to about $64,700. These costs are further broken down and presented in Table 1.