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<br />drainage basin. The Town of Evergreen, located near the geometric center <br /> <br />of the drainage basin at an elevation of 6997 feet, has a mean annual tem- <br /> <br />perature and precipitation of 440F and 17.7 inches respectively. The limited <br /> <br />precipitation at the lower elevations in the basin requires that the principal <br /> <br />crops of native hay, alfalfa, and pastureland be irrigated. The commercial <br /> <br />farming of row crops is almost nonexistent. <br /> <br />. <br /> <br />The mean annual runoff (1927-72) from Bear Creek as measured at ,; <br /> <br />the mouth at Sheridan is 26,440 Ac-Ft. The mean of the annual reported <br /> <br />diversions (1952-72) is 21,156 Ac-Ft. There are numerous, small off-stream <br /> <br />storage reservoirs in former Water District No.9 and one on-stream reservoir <br /> <br />at Evergreen. The Evergreen Reservoir is used for recreation and normally <br /> <br />does not serve as a water storage facility. Bear Creek Dam is presently <br /> <br />under construction on Bear Creel: immediately downstream from the Turkey <br /> <br />Creek confluence. This dam is scheduled for completion in late 1976 and <br /> <br />will be used for flood control purposes with a maximum capacity of 52,000 <br /> <br />Ac-Ft. There are no transmountain diversions into former Water District No. <br /> <br />. <br /> <br />9 with the exception of an underground aqueduct that delivers Denver water <br /> <br />from the South Platte River to Marston Reservoir. <br /> <br />Population growth in former Water District No.9 has been relatively <br /> <br />rapid in recent years (45% growth rate between 1960 and 1970) as a result of <br /> <br />the westward expansion of the Denver metropolitan area and the development <br /> <br />of numerous subdivisions in the mountains. The open space and agricultural <br /> <br />land east of, the hogback are being developed into golf courses, shopping <br /> <br />centers, parks and homes. Water usage is changing from agricultural to <br /> <br />-3- <br /> <br />-- <br /> <br />-,---., <br /> <br />.' ....,....~.- <br /> <br />-";......' L_ <br /> <br />-'."_. <br />