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ryrl~'(1/q '" '-- .... ~ ) ~ . q constructed at randomly located points within the metropolitan area, mostly along Sand Creek, to protect against flood and erosion damage. (3) Water supply for the city of Aurora is obtained through the Homestake Diversion Project, which is a cooperative water ~pply project for the cities of Aurora and Colorado Springs. The supply is obtained from drainages west of the Continental Divide. Aurora's water supply is treated at a facility located between the Cherry Creek and Sand Creek basins. (4) Five sewage treatment fac11i ties lie wi thin the Sand Creek basin and discharge to the basin streams. These include the Denver Eastside plant, adjacent to Sand Creek near Stapleton International Airport; the c1 ty of Aurora I s Westerly Creek plant and Sand Creek plant, located on the respectively named streams at Aurora; the Fitzsimons General Hospital plant, discharging to Sand Creek; and the Buckley Field plant, with its outlet to Toll Gate Creek. These plants receive predominantly domestic loadings. The plants served a total of about 85,000 people in 1966, and discharged an average of 5.8 million gallons of sewage effluent per day. b. Cherry Creek basin. (l) Federal. The Cherry Creek Dam and Reservoir, authorized by the Flood Control Acts of 1941 and 1944, was completed by the Corps of Engineers in 1950 at a cost of $14.8 million. The project provides flood protection to the areas along Cherry Creek downstream from the dam and to areas along the South Platte River downstream from Cherry Creek. The dam is a r6lled-earthfill structure with storage capacity, to the crest of the emergency spillway, of 93,920 acre-feet. The storage capacity now consists of 79.960 acre-feet for flood control storage and 13,960 acre-feet of multiple-use storage. The multiple-use storage pool serves in part as a recreation pool for the project recreation function. . (2) The Soil Conservation Service has completed two watershed projects in the Cherry Creek basin. These are the FranktoWn-Parker Tributaries of Cherry Creek Watershed Project and the. West Cherry Creek Watershed Project. The Franktown- Parker project, which was completed in December 1966, consists of 22 floodwater-detention structures. The estimated total cost of this project was $826,739. The West Cherry Creek project, which was completed in May 1963, consists of 10 floodwater-deten- tion structures. The estimated total cost of this project was $348,682. 17 !.;