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'1896 . between the Pueblo Board of Water Works and the City of Aurora. The Project imported 13,450 acre-feet of water through the Boustead Tunnel during water year 1988. Turquoi se Lake storage was near capac ity throughout the ent i re year. Exhibits 7 and 8 show the precipitation and pan evaporation at Turquoise Lake. The water year ended with a conte:nt of 127,930 acre-feet in storage. Table 5 and exhibit 9 show the operation of Turquoise Lake during the water year 1988. F. Mt. Elbert Conduit/Ha1fmoon Creek Diversion During water year 1988, 56,080 acre-feet of water were released from Turquoise Lake and 7,460 acre-feet of water diverted at Ha1fmoon CreekDiversion through Mt. Elbert d:onduit to Mt. Elbert Forebay (exhibit 10). In addition, 2,940 acre-feet: of water were released into Mt. Elbert conduit from Turquoise Lake for use by the Leadville federal fish hatchery. G. Twin Lakes/Mt. Elbert Forebay and Mt. Elbert Pumped-Storage Powerp1ant On September 30, 1987, the lake surface elevation of Twin Lakes was 9193.03 feet with a content of 122,640 acr~-feet of water. Mt. Elbert Forebay water surface elevation was at 963~.54 feet with a content of 7,690 acre-feet. Exhibits 11 and 12 show the precipitation and pan evaporation at Twin Lakes. Twi n Lakes was operated throughout the year bypass i ng a 11 nat i ve inflow and through May drawi ng water out of storage for the City of Colorado Springs. Beginning in June, the; reservoir was refilled by transferri ng Project water, whi ch wou 1 d have norma 11y been transferred to Pueb 10 Reservoi r, from Turquoi se Lake j nto Twi n Lakes. Water was ,retained upstream because the available spa~e in Twin Lakes and because Pueblo Reservoir had remained full until late July. The higher evaporation rate in Pueblo Reservoir was also considered when making the decision to leave the water in Twin Lakes throuqhout the remainder of the water year. Table 6 and exhibit 13' show -Twin Lakes/Mt. Elbert Forebay operation for water year 1988. Mt. Elbert Pumped-Storage Powerp1ant ha~ at least one unit available throughout the water year. The powerp1ant had 63,540 acre-feet of flow through water available along with 449,17ID acre-feet of water pumped from Twin Lakes. The powerp1ant generated 182,807,000 kilowatt-hours during water year 1988 with 504,810 acre-feet of water (table 7). Twin Lakes/Mt. Elbert Forebay combined stora,ge totaled 135,190 acre-feet at the end of the water year. Twi n Lakes storage was 126,780 acre-feet and Mt. Elbert Forebay was 8,410 acre-feet. 10 . .