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1518 . C. Turquoise Lake On September 30, 1983, 126,790 a4re-feet of water was in storage in Turquoise Lake. Homestake Project maintained their contracted storage space at approximately 28,000 acre-feet by importing approximately 10,430 acre-feet of water through the Homestake Tunnel. In addition to the Homestake imports, Busk-Ivanhoe imported approximately 9,700 acre- feet of water through the Carlton Tun~el throughout the year and 200 acre-feet through Boustead Tunnel durin~ July, of which 4,950 acre-feet was stored for the High Line Canal ~ompany. The project imported 107,630 acre-feet of water through the Charles H. Boustead Tunnel during May through September. I Releases through Sugar Loaf Dam were made as outl ined in last year's Annual Operating Plan, except additional releases had to be made into Lake Fork Creek due to the conduit being at capacity from April 16 through September 4. ' Turquoise Lake storage exceeded the toplof active conservation capacity from July 9 through July 11 and from August 19 through August 22 and remained at near capacity through Sept~mber 30. Exhibits 4 and 5 show the precipitation and pan evaporation' at Turquoise Lake. The water year ended with a content of 127,770 acre-feet in storage. Imports through Boustead Tunnel were reduced for a short period due to the restrictions of the 200 ft3/s release rate in Lake Fork below Sugar Loaf Dam at the county road 5 crossing., The installation of a new gaging station bn Lake Fork Creek above Turquoise Lake was completed and put in service in water year 1984. Measurements have been recorded and a rating table will be developed in the near future. , Table 4 and exhibit 6 show the operation of Turquoise Lake during water year 1983. . D. Halfmoon Creek Diversion i Halfmoon Creek diversion was inloperation and diverted water into the Mt. Elbert Conduit from September ~ through September 30. I E. Twin Lakes/Mt, Elbert Forebay and Mt. Elbert Pumped-Storage Powerp 1 ant On September 30, 1983, the lake surface elevation of Twin Lakes was 9188.43 feet with a content of 110,5401 acre-feet of water. Mt. Elbert Forebay water surface elevation was at 9624.67 feet with a content of 5,820 acre-feet. / .-------"i i I Table 5 and exhibit 7 show Twin Lakes/Mt. ~lbert Forebay operation for water year 1984. Exhibits 8 and 9 show the pr~cipitation and pan evaporation at Twin Lakes. 8 .