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<br />Eagle River Water & Sanitation District CWCB Water Conservation Grant Application <br />Page 8 of 17 <br /> <br />Efficient utilization of water during these periods is also a critical component of the <br />District's goal of maintaining and enhancing streamflows+ <br /> <br />(d) Adequacy, stability and reliability of the entity's water system: <br /> <br />Water Stlpplies and Storage <br /> <br />Water Rights <br />The District can divert its ra\v water supplies year round from Gore Creek and tIle Eagle <br />River and from wells in the Gore Creek alluvium under a portfolio of water rights. These <br />include the water rights used for direct flo\v and storage pllrposes,water rights formerly <br />used for irrigation of pastures and hay meadows in the Vail Valley, and transbasill <br />diversions from the Yampa River basin to the C.olorado River basin. Storage supplies <br />include water stored in Green MOllntain Reservoir, Black Lakes, Eagle Park Reservoir, <br />and Homestake Reservoir, as well as water imported from the Yampa River Basin and <br />regulated in several reservoirs on tributarie.s to Egeria Creek near Toponas. These water <br />rights have been integrated into plans for augmentation by the Water Court to develop a <br />year-round, reliable water supply for present and future needs. Seven wells extract <br />ground\vater from the alluvial aquifer of Gore Creek with a normal capacity of7.78 <br />million gallons per day (MGD). Th,e District's fIrm anntlal yield for municipal water <br />service is 4,151.6 acre-feet. The District also owns water rights for 603 acre-feet of <br />snovvrnaking at the Vail Ski Area and 121.8 acre-feet of Vail Golf Course. irrigation <br />water. <br /> <br />Water Treatment and k~torage <br />The District's \vater treatment and distribution system consists of a 1 ~Omillion gallon <br />(MG) per day microfiltration plant, and the seven groundwater wells \vhich have <br />wellhead chlorination systems+ The Gore Valley Drinking Water Facility, w:hich treats <br />surface water from Gore Creek, is operated as an emergency back-up source. <br /> <br />Total reservoir water storage for the District is 550 AF (179+3 MG), including 227 AF in <br />Black Lake No.1, 73 AF in Black Lake No.2, 330 AF in Eagle Park Reservoir, and 250 <br />AF in Homestake Reservoir + In addition, the District has 12 water storage tanks with a <br />total storage capacity of 22.1 AF (7.2 MG). Peak day production can reach 7+0 MGD, <br />which usually OCCllrs in the summer due to high irrigation season demands. Average daily <br />demand over the course of the year is approximately 2.5 MGD. <br /> <br />Adequacy, Stability and Reliability <br />The District's water supply system is fully adequate to meet existing demands and <br />provide a stable and reliable water source. l"'hough the District's service area is not likely <br />to gro\v significantly, redevelopment efforts will continue to increase population density <br />and the number of commercial establishments+ Exact data regarding future development <br />and redevelopment plans are llnknOwn, which creates uncertainty and difficulty in <br />forecasting demands. <br />