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that is subject to more consolidation over time it is important to determine the existing mass of <br /> the accumulated sediments to allow a more precise evaluation of consolidated sediment volume <br /> if lake dredging is a potential management option. <br /> Total cost for the sedimentation survey will be $22,117 and is detailed on the attached <br /> budget sheet. <br /> Project Plan and Delivera6les <br /> All field data collection, office or laboratory analyses, and report preparation will be the <br /> responsibility of the Water Survey. The City of Decatur will fund the study and has no other <br /> specific commitment. � <br /> The field work for the sedimentation survey will be scheduled at the earliest possible <br /> time. Laboratory and office analyses and calculations will require 4 to 6 months. Field work will <br /> be completed in Spring 2000, preliminary survey results will be available by May 31, 2000. A <br /> review draft of the final report will be completed by June 30, 2000 with a response da.te of July <br /> 31,2000. The final edited draft of this report will be completed by August 31, 2000. <br /> Reference <br /> Fitzpatrick, W.P., W.C. Bogner, and N.G. Bhowmik. 1987. Sedimentation and Hydrologic <br /> Processes in Lake Decatur and Its Watershed. Illinois State Water Survey Report of <br /> Investigation 107. <br />