Laserfiche WebLink
<br />'0,1\" ,; <br />(;~J.i. <br /> <br />Homestake Tunnel imports totaled 35,320 acre-feet during the water year and were 142 <br />percent of average. Busk-Ivanhoe imports totaled 5,266 acre-feet, which were 98 percent <br />of average, and were divided equally between the Pueblo Board of Water Works and the <br />City of Aurora. Project water imports through the Boustead Tunnel totaled 45,307 acre- <br />feet and were 91 percent of average. <br /> <br />Exhibits 8 and 9 show the precipitation and pan evaporation at Turquoise Lake. Exhibits <br />5, 6, and 7 show the monthly imports through the Boustead, Homestake, and <br />Busk-Ivanhoe Tunnels, respectively. Table 6 and Exhibit 10 depict the monthly operation <br />of Turquoise Lake during the 2001 water year. <br /> <br />E. Mt. Elbert ConduitJH'alfmoon Creek Diversion <br /> <br />During water year 2001, 110,774 acre-feet of water released from Turquoise Lake and <br />10,893 acre-feet of water diverted from Halfmoon Creek were conveyed through the Mt. <br />Elbert Conduit to the Mt. Elbert Forebay, and subsequently to Twin Lakes through the <br />Mt. Elbert Powerplant. An additional 4,381 acre-feet of water were released into the <br />conduit from Turquoise Lake for use by the Leadville Federal Fish Hatchery, The water <br />delivered to the hatChery was returned to the Arkansas River and stored in <br />Pueblo Reservoir. <br /> <br />F, Twin Lakes/Mt. Elbert Forebav and Mt. Elbert Pumoed-Storaqe Powerolant <br /> <br />The storage in Twin Lakes was 111,185 acre-feet (elevation 9188.17 feet) on September <br />30, 2000. The combined storage of Twin Lakes and the Mt. Elbert Forebay was 118,872 <br />acre-feet. Twin Lakes releases to Lake Creek were made throughout the winter to pass <br />the entire flow of the Mt. Elbert Conduit, and to transfer the Project water stored in the <br />reservoir to Pueblo Reservoir. The native inflow was stored in the Twin Lakes Reservoir <br />and Canal Company storage space from November 15 through March 15. A total of <br />41,287 acre-feet of Project water was released to Lake Creek. This water was released <br />such that the flow in the Arkansas River at the Wellsville gage was maintained as close to <br />the average October 15 to November 15 trout spawning flow as practically possible. The <br />combined reservoir and forebay storage reached a low point of 104,510 acre-feet on <br />February 14,2001, and reached its high pointof 134,951 acre-feet on June 11,2001. A <br />total of 9,126 acre-feet of project water was released beginning on July 5 and ending on <br />August 15, to augment rafting flows in the Arkansas River, <br /> <br />At least one generating/pumping unit was available at the Mt. Elbert Powerplant <br />throughout the 2001 water year. The capacity of one unit is greater than the capacity of <br />the Mt. Elbert Conduit. A total of 364,392 megawatt-hours of energy was generated at <br />the powerplant, with 982,703 acre-feet of water; 122,222 acre-feet came through the <br />Mt. Elbert Conduit; and the remaining 865,944 acre-feet were first pumped to the Mt. <br />Elb'ert Forebay from Twin Lakes during off-peak electric demand hours. Table 8 depicts <br />the monthly powerplant operation for the 2001 water year. <br /> <br />7 <br />