Durango WCPlan 1998 - Laserfiche WebLink

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(emergency or drought induced measures) and long-term demand reduction (permanent water conservation measures) is important because: 1.) the time period required to implement the measures varies markedly, that is, some measures cannot be implemented quickly enough to meet a short-term emergency; 2.) the public may be willing to cooperate with some measures only on an emergency basis; 3.) the long-term savings of some retrofit devices may be less than the short-term savings of the same devices during an emergency because customers may remove them: and 4.) reduction in demand from long-term conservation measures is available for supply, whereas, emergency measures during a drought influence only short-term deficit planning. . Interference with sound operating practices. Water distribution systems need periodic flushing to remove accumulated sediment and slimes. The frequency of flushing should not be extended beyond good practice intervals under pressure to meet the conservation goal of reducing overall per capita water usage. This would not be in the best interest of public health. III. Existing Sources of Supply The City of Durango has always tried to maintain an adequate, high quality, water supply for its customers. Raw water delivery and storage facilities consist of three components: (1) the Florida River Pipeline from the Florida River to Terminal Reservoir, (2) the Animas River Pump Station which pumps water from the Animas River to Terminal Reservoir, and (3) Terminal Reservoir adjacent to the water treatment plant. Capacities of the delivery and storage facilities are summarized below. Florida River Delivery Capacity: Animas River Delivery Capacity: Total Raw Water Delivery Capacity: 5.8 mgd 5.3 mgd 11.1 mgd Terminal Reservoir Storage: 230 acre-feet The City owns direct diversion water rights to both the Florida River and the Animas River. A summary of each source is provided below. M R h FI unicipa Water if!l ts - Direct ow Structure Amount Amount Adjudication Approp. Stream Source Absolute Conditional Date Date Priority Florida River Durango City Pipeline 3.250 efs 11/8/1923 3/27/1877 F-I Florida River Durango City Pioeline 1.000 efs 11/8/1923 7/15/1877 F-2 Florida River Durango City Pioeline 2.920 efs 11/8/1923 4/15/1878 F-3 Florida River Durango City Pipeline 1.000 efs 11/8/1923 7/15/1878 F-6 Florida River Durango City Pipeline 0.083 efs 11/8/1923 6/01/1881 F-II Florida River Durango City Pipeline 0.167 efs 11/8/1923 6/15/1881 F-12 Florida River Durango City Pioeline 0.500 efs 11/8/1923 5/01/1855 F-18 Subtotal Florida River Ril!hts: 8.920 efs Animas River Animas River Pumo & Force Main 1.000 efs. 11 /08/ 1923 06/15/1874 1-1 Animas River Animas River Pumo & Force Main 0.330 efs. 11/08/1923 05/01/1878 1-3 Animas River Animas River Pump & force Main 7.061 efs 39.939 efs 03/21/1966 02/03/1883 65-1 Animas River Bodo Pipeline & Ditch No.2 0.25 efs 2.75 cfs 03/21/ 1966 06/01/1945 65-45 Animas River West Side Pump Station 1.4482 efs 0.5518 efs 03/21/1966 01/03/1883 65-1 Animas River Memorial Park Pumping Station 0.6127 efs 0.3873 efs 03/21/ 1966 02/03/1883 65-1 Animas River South Durango Pumping Plant 4.2000 efs 03/21/1966 09/08/1964 65-82A Subtotal Animas River Rights: 11.7491 efs 46.5309 efs Total: 20.6691 efs 46.5309 efs .Transferred by South Durango Water District to Animas Pump and Force Main Municipal Water Rights - Storage (Absolute) Florida Drainage Durango Reservoir No. 1 Florida Drainage Durango Reservoir No.4 250 AF 100 AF 03/21/1966 06/08/1899 03/21/1966 06/08/1899 RES 65-1 RES 65-4 IV. Water System Facilities Raw water is treated in a conventional water treatment plant, utilizing the following treatment processes: coagulation, flocculation, settling, filtration and chlorination. Capacity of the treatment plant is 11 mgd, with 2