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<br />Chapter I - Introduction <br /> <br />Chapter I - Introduction <br /> <br />This study supplements the original feasibility study completed by Smith Geotechnical <br />entitled "Feasibility Study for Construction of Dry Creek Reservoir" dated January 2003. Since the <br />completion of the original study, the Districts have determined that it is necessary to construct a <br />larger reservoir than that originally planned. This supplemental study will explain why the larger <br />reservoir was selected and discusses the technical, financial, and environmental changes to the <br />project. The location of the project remains unchanged. A project location map is provided in <br />Figure I-I for reference. <br /> <br />The Districts jointly own the Carter Lake Filter Plant (CLFP), which treats Colorado-Big <br />Thompson (C-BT) water that is delivered to the plant via a single supply canal. The Districts <br />presently do not own a raw water reservoir and are entirely dependent on availability of water from <br />Northern Colorado Water Conservancy District's Carter Lake. In wet years, the Districts are unable <br />to treat and store all of the water to which they are entitled and consequently must take less th,ID their <br />water rights allow. In dry years, the Districts could have a water shortage that cannot be overcome <br />by supply from Carter Lake. The Districts would be forced to meet their water demands from <br />outside entities; whose supplies may not be available in the future. In addition, any condition that <br />would interrupt supply from Carter Lake such as maintenance to the darns, outlet, supply canal, or <br />turnout could cause interruption in the treatment plant operation. The only storage the Districts have <br />other than Carter Lake is their treated water storage tanks. A new raw water storage facility would <br />augment limited raw water supply and help overcome supply interruptions from Carter Lake. <br /> <br />The Districts are interested in enhancing the operations of the existing Carter Lake Filter <br />Plant, in relation to the following needs: <br /> <br />1. Additional storage for current C-BT supplies so that water can be efficiently and <br />immediately delivered to the plant in response to customer demands; <br /> <br />2. Carry-over storage for the Districts' existing C-BT water supply for use in future <br />years and as drought protection; and <br /> <br />3. Reduce reliance on the C-BT water delivery infrastructure by providing an additional <br /> <br />Dry Creek Reservoir Project <br /> <br />1 <br /> <br />l3C1jYLE <br />