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3 . 0 OPERATIONAL CONSIDERATIONS DURING DREDGING The primary objectives of site management during dredging operations are to maintain acceptable effluent quality during the decanting process , to maximize the dewatering rate of the deposited material by controlling the pattern of deposition , and to minimize the impact of the site on adjacent properties . To this end, six elements of site management are discussed : ( 1 ) placement and handling of the dredge discharge and return water pipelines, (2) operation and monitoring of the dredged slurry inlet, (3 ) operation and adjustment of the weirs , (4) monitoring of the released effluent, ( 5 ) continued monitoring of local groundwater conditions, and (6) compliance with the Jacksonville District ' s Migratory Bird Policy . 3. 1 Pipeline Placement The dredge (with additional boosters as necessary) will pump the dredged material as a slurry from the dredging site to the containment basin via pipeline . Thus, each dredging operation over the design life of Site IR- 14 will involve placing and retrieving both dredge discharge and return water pipelines . To minimize impacts to the mangrove wetlands, the dredge discharge pipeline will follow an existing graded road from near the Indian River shoreline to the road ' s intersection with the dike ' s eastern side (Figure 2 . 1 ) . The pipeline will then follow the dike ' s outside toe south and west to the basin ' s southwest corner and enter the basin by passing over the dike crest. This route will temporarily impact only a narrow fringe of mangroves at the Indian River shoreline . The return water pipeline will exit the basin near its northeastern corner and follow the same graded road to the Indian River shoreline . The return water pipeline outfall will be placed at or beyond the Indian River shoreline as necessary to minimize possible impacts to local seagrass beds . The pipelines will be placed immediately before dredging begins as part of the dredging contractor' s mobilization procedures . The dredge discharge pipeline will remain in place only during active dredging operations . The time required to complete this phase of operations Will depend on the quantity and distribution of the dredged material . As discussed previously, a 10- year dredging cycle is likely to produce a bulked volume of approximately 32 ,600 cy of material . This volume corresponds to an in situ volume of approximately 16 ,300 cy . Dredging this volume of material and transporting it to the containment basin, combined with reasonable delays associated with dredging projects of this complexity, yields an estimated 27