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grading and drainage of the site in a manner to maximize shorebird use and preclude establishment of the salt marsh harvest mouse in the disposal sire area. monitoring of bird use, surface and ground water quality and levee integrity. PROJECT CHARACTERISTICS The City of San Leandro plans to remove the dredged material recently placed at the DMMS and benefiicially reuse the material at Oyster Bay Regional Shoreline Park. The removal operation would last approximately 60 working days, and would be limited, except in unusual circumstances, to weekdays only, from 8:00 a.m. to 5:00 p.m. (the last truck would leave the DMMS by 4:00 p.m.). 'The project specifically consists of: 1) removing stored dredged material from the East and West Basins to achieve suitable elevations for habitat enhancement within that portion of the DMMS; and 2) reconstructing previously existing shorebird islands and creating new islands in the West and East Basins to maximize the site's value as a shorebird habitat when water is present. BACKGROUND For more than two decades, the City of San Leandro (City) and the Federal Government have worked together to maintain the San Leandro Marina Channel as authorized by Congress. Maintenance dredging has been performed by the U.S. Army Corps of Engineers (Corps), using a combination of local and Federal funding, and utilizing the City's DMMS for processing the dredged sediments. The City has borne full financial responsibility for the operation of the DMMS since its initial use in 1973, and has also paid the full cost to dispose of the dredged material from the Federal channel. The San Leandro Marina and Shoreline Recreation Area were constructed in 1962. The first maintenance dredging of the Marina channel was completed in 1966, when an estimated 225,000 cubic yards of material was hydraulically dredged. In late 1970 Congress authorized the use of Federal funds for continued maintenance of the Marina access channels. The second maintenance dredging was completed in 1973, with disposal taking place at an onshore dredge disposal site that had recently been established by the City. Subsequent maintenance dredging episodes took place in 1977, 1984, 1989, 1993, and 1997. In 2001, approximately 120,000 cubic yards of material was dredged and pumped to the onshore site, the last time dredged material was placed there. The. dredge material is the result of the Corps' maintenance dredging of the entrance channel to the San Leandro Marina and the City's maintenance dredging of several small areas near the entrance to its Marina basin. San Leandro DMMS 4 March / Luvn Sediment Removal Project