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based a comprehensive modeling effort. The GENESIS shoreline model will provide a basis for the study. Given the limited output of this model , an additional algorithm will be used to project the beach profile from the predicted shoreline position in the cross-shore direction . Equilibrium profile theory will be used to calculate this cross-shore profile projection . The time dependent toe of fill will be evaluated based on the intersection of the projected profile with the existing bottom topography. Additional analysis will be conducted to ensure that the toe of fill predictions are in line with the anticipated volumetric performance of the shoreline . The resulting composite model will be used to evaluate the time-dependent coverage of nearshore hardbottom within the project area . Both primary and secondary coverage mechanisms will be considered . Project alternatives that minimize hardbottom coverage will be included within the analysis . Task 2 .3 Scan and Rectify 2004 Aerials Upon acquisition , the 2004 aerials will be rectified for use in plan development and determination of hardbottom location . Task 2 .4 Reassess Nearshore Hardbottom Resource Impacts Acceptance of the no-impact design by the regulatory agencies is contingent on an adequate assessment of the nearshore hardbottom resources and the potential impacts of the project to these resources . Based on the modeling of the project performance , impacts to nearshore hardbottom resources will be minimized through modification of the project fill plan . This analysis will include an assessment of the ephemeral nature of the nearshore hardbottom . Task 2 . 5 Revise Project Cost Estimates Based on the results of the project performance modeling , project costs will be revised and updated . This task will include a re-evaluation of the renourishment interval for project cost optimization . Task 2 . 6 Prepare Final Design Letter Report A letter report detailing the results of Task 2 . 1 through Task 2 . 5 will be developed and submitted to the County for review. Following comment from the County this report will be included within the permit application modification package provided to the regulatory agencies . TASK 3 MODIFICATION , PROCESSING , AND ACQUISITION OF JOINT COASTAL CONSTRUCTION PERMITS FOR SECTOR 7 ATM will develop a modification to the JCP permit application currently under review by the FDEP based on the no-impact design . ATM will assemble and maintain , in chronological order, all letters and reports applicable to the Project Permit Correspondence for the County. ATM shall continue telephone and written communication with the State of Florida , Department of Environmental Protection ( DEP ) , USACE Jacksonville District and County sufficient to coordinate agency review of the Joint Coastal Permit Application modification .