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. . ;/'.... i$~" V,_:_,71 SUPPLELMENT TO QUESTION AND ANSWER SECTION MUNICIPAL AND INDUSTRIAL WATER DURANGO SERVICE AREA!! Development With Animas-La Plata Project Present Uses The city of Durango, Colorado, obtains its raw water supply from both the Florida and Animas Rivers. The city has an absolute direct flow water right of 8.92 second-feet from the Florida River and 6.00 second-feet from the Animas River. The city also has a conditional direct flow water right from the Animas River of 44.00 second-feet. The Durango City Pipeline diverts water from the Florida River about 10 miles east of the city and has a capacity of 10.1 second-feet. The pipeline delivers water to the Durango res- ervoir No.2 (Terminal Reservoir). The reservoir has an active capacity of 129.5 acre-feet. The Animas Pump and Force Main con- sists of a pumping plant of the Animas River and a' 1.3 mile pipe- line leading to the Terminal Reservoir. These facilities have a capacity of about 9.28 second-feet to the reservoir and 1.01 second- feet to the Municiapl Golf Course and Fort Lewis COllege for irriga- tion. Green Mount Pump Station located on the Animas River at Ninth Street, was installed in 1974 and is capable of delivering about 1.33 second-feet of raw water to Green Mount Cemetary for ir- rigation. The High School Pump Station, located near 25th Street was installed in 1977 and is capable of delivering 1.33 second-feet of raw water to the High School for irrigation. The city of Durango owns and maintains a 12 million gallon per day (MGD) treatment plant which receives water from the Terminal Reservoir. Treatment consists of sedimentation, filtration, and chlorination. The city also has 10 million gallons of treated water storage. Essentially all commercial water users are metered, but residential use is unmetered at the present time. The city of Durango sells treated water to the South Durango and Northeast Durango Water District and the Animas Water Company. From 1970 to 1976 the city of Durango has produced an average of 1,596.7 MG of treated water per year. Use of raw water for ir- rigation purposes had averaged about 70 MG over the same period. Per capita use rates of water in the area serviced by the city of Durango have averaged about 385 gallons per capita per day (GPCD) over the past seven years. This figure includes both treated and raw water use. Projected Needs Estimates prepared by the Bureau of Reclamation indicate that the population of the Durango service area is most likely to in- crease as follows: Year Population 1970 10,333 1976 16,600 1980 19,000 1990 26,500 2000 33,600 2010 40,600 2020 48,900 !! Includes areas now serves by South Duranqo Water District, North- east Water District and Animas Water Compnay together with anti- cipated expansions to the areas of the Animas Airport, Durango West, Tamarron and to the Animas-Florida divide on Florida Road. -l-