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Contract Proposal <br /> Lake Decatur Dredging and Oakley Sediment Basin Rehabilitation project <br /> Page 2 of 2 <br /> 3. Rehabilitation of Oakley Sediment Basin(Assume all work completed in 2014 in 8 months) <br /> This work is for the construction observation, material testing, construction layout, <br /> documentation and preparation of record drawings for the rehabilitation of the Oakley Sediment <br /> Basin. Chastain will provide a full time Liaison Engineering Technician, a part time <br /> Construction Observer and a survey crew to perform the necessary work. SKS Engineers will <br /> provide a material tester to be on site on a part time basis to perform material testing as part of <br /> the embankment construction. We anticipate a significant amount of overtime to be needed to <br /> construct the work in 2014 to allow dredging to begin in 2015. An overtime allowance for staff <br /> has been included in this effort. <br /> 4,338 hours and$ 357,818 <br /> 4. Construction Administration of Dredging(Assume all work occurs in 201520181 <br /> This work consists of Chastain staff monitoring the dredging of Lake Decatur Basins 1-4 through <br /> coordination with the Contractor, monthly bathymetric surveys of the work by the Contractor to <br /> verify production, and reviewing and approving the Contractor's pay request for payment by the <br /> City of Decatur. We have included an initial survey of Lake Decatur Basins 1-4 to verify the <br /> accuracy of the survey performed in 2008 used in the design of the mining plaits and we have <br /> also included a final survey of these basins to verify the work performed by the Contractor over a <br /> four year period and to serve as Record Drawings for the project. <br /> 3,516 hours and$ 408,704 <br /> Finally, a contract contingency allowance of$ 40,000 has been included for unforeseen <br /> conditions. Our total contract proposal is for a not-to-exceed amount of$ 897,900. <br /> We have been involved in the dredging and water supply solutions for the City of Decatur since <br /> 2004. The result of completing this work will be to increase the water supply of Lake Decatur by <br /> approximately 30 percent thereby reducing the impacts of drought and the ability to grow our <br /> community. <br /> Sincerely, <br /> CHASTAIN&ASSOCIATES LLC <br /> Gregg L. Foltz, P.E. <br /> Principal <br /> A-2 <br />