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� Grant Application Colorado Water Conservation Boazd Section (4) EXHIBIT � �' " Purpose. The Oak Creek Reservoir will provide flood control for the City of Florence from Oak Creek, and provide 2250 acre foot of storage for the City of Florence, and the Towns of Coal Creek, Williamsburg and Rockvale. The reservoir has potential storage and use for Pueblo West Metropolitan District and the City of Canon City in addition to the aforementioned entities, will benefit the entire Arkansas River Basin, and rises to "a matter of state-wide concern." Need. Oak Creek begins five miles south-southwest of Florence in high elevations. Being fed by many tributaries, summer showers of durations of as long as one hour, as was the case with the 1923 flood, can quickly fill tributaries and fill the Oak Creek Channel. Florence has experienced severe flooding from Oak Creek throughout the years. The floods of 1913, 1923 and 1941 were especially damaging. Significant areas of western Florence have been flooded from Oak Creek, with water channels, streets and houses destroyed or damaged. Many properiy owners in west Florence must purchase FEMA flood insurance at a cost of approxi.mately $900 a year. Enclosed is a copy of the report by Martin and Wood Water Consultants da.ted August 2001 entitled "Analysis of Florence Regional Water System Need for Storage" Exhibit "F". The report details the need for storage, storage options and evaluates Florence's participation in the Preferred Storage Options Plan and Enlargement of Southeastem Water Conservancy District's facilities. The report concludes that the regional entities of Florence, Coal Creek, Rockvale and Williamsburg will require raw water storage, given estimated growth projections, by 2010. The estimated completion date, provided no unanticipated contingencies delay the project, is completion of the reservoir in 2010. In December 2002, the TJ.S. Army Corps of Engineers completed a Reconnaissance Study of a dual purpose facility to contain a 100 year event of Oak Creek, and provide for 2250 acre foot of storage. The Reconna.issance Study was documented in a"Fact Sheet" atta.ched hereto as Exhibit "D". There are 292 structures in the 100-year floodplain, and the Corps estimated annual damage of $1,100,000. That study determined that the cost benefit analysis of such a facility would be favorable. In August 2004, the City of Florence and the Corps of Engineers signed an agreement for a Feasibility Study, copy attached hereto as Exhibit "H", which details cost sharing and programming of essential tasks in deternuning the possibility of the joint flood control and storage reservoir. The cost to the City of Florence and regional entities for our portion of the Feasibility Study is $448,000, of which this grant request of $200,000 would fund one-half of the amount Florence will need to contribute. Service Area. The Oak Creek Reservoir Project will benefit the entire regional water system that includes the combined water rights of the City of Florence, Town of Coa1 Creek, Town of Williamsburg, The service area also includes the East Florence Water Association and the Federal Bureau of Prisons, Florence Correctional Complex. See Service Area Map, Exhibit "P'.