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I ,I I I I I I I I I I I I I I I I I I M.V.I.C. water. Approximately 2.5 cfs are available from M.V.I.C. for about a 30-day period each year. This raw water is conveyed approximately 3 miles in an M,V.I.C. irrigation ditch to an open earth storage reservoir located near McElmo Canyon. The capacity of this reservoir is such that an adequate aupply can be maintained year-round even during long periods of drought. Water is filtered through a 150 gpm Howard filter composed of sand, high-velocity electro-media and anthracite coal layers. Disinfection is accomplished by gas chlorination. Treated water is stored in a 75,000 gallon steel reservoir located at an elevation of 6,800 feet. The distribution system consists primarily of four, six, and eight inch mains as shown in Figure 5-5. During the winter and summer there are approximately forty-six and fifty taps, respectively, in use on the system. About one-half of these taps are classified as commercial with the remaining half classified as residential. Water consumption is measured by meters located at each tap. Towaoc: Towaoc has obtained its water supply from several sources. Three wells, one spring, and a combination spring-infiltration gallery have at one time or another contri- buted to the total supply. As these sources were unreliable, the Ute Indians pur- chased 200 shares of M.V.I.C. stock in 1955. Water is transported to the treatment plant and storage tank near the town through the Rocky Ford Ditch, an extension of the East Lateral. The supply is delivered along with irrigation water and therefore must be stored during the non-irrigation season. The quality of this water has been noted to be poor at times, and some people prefer to have thier drinking water hauled in from Cortez or from natural springs. The existing treatment facilities consist of an open earth 150 acre-foot raw water reservoir, two slow-sand filters, an aeration reservoir and one small hypochlorinator. Most of the treated water is conveyed in a six-inch pipeline to the existing 1 million gallon reaervoir for storage The original distribution system was built in 1958 and consists of six-inch, four-inch two-inch and 3/4-inch mains. Summit Ridge: Currently, this area has no supply or distribution system. Ridge have expressed an interest in obtaining service from Residents in Summit the Montezuma Water -47-