Reso 2004-069 - Laserfiche WebLink

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POl 6.ATI U.LY POTSV"r1.41,LY SIG~PIC~~T LFSS"fll4A iE5 t551 SICAIhlC4Ar I~LF.SS SIGAIPICA\r SO~RCFS _ ISSLES \1frICA~110A IA1 PACT ~~1PaC1 1ACORPORA"I-ED 6. BIOLOGICAL. RESOLRCES. Would the ro'ect: a. Have a substantial adverse effect. either X directly or through habitat modifications; on 1, 7 any species identified as a candidate, sensitive. or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service'? b. I~Iave a substantial adverse effect an any X riparian habitat or other sensitive natural 1, 7 community identified in local or regional plans, policies, regulations or by the California Department of Fish and Game ar US Fish and Wildlife Service? c. Have a substantial adverse effect on federally X protected wetlands as defined by Section 404 1, 7 of the Clea^ Water Act (including, but not limited to, marsh, vernal pool, coastal, etc. j through direct removal, filling; hydrological interru lion. or other means'? d. Interfere substantially with the movement of an X resident or migratory fish or wildlife species or 1, 7 with established native resident or migratory wildlife corridors, or impede the use of native wildlife nurse sites'? e. Contlict with any local policies or ordinances X protecting biological resources, such as a tree 4, 7 reservation olicv or ordinance'? f~. Conflict with the provisions of an adopted X Habitat Conservation Plan. Natural 1, 4, 7 Community Conservation Plan or other approved local, regional, or state habitat conservatio^ tan'? EXPLANATION: a-c) The open nature of the DMMS, the relative absence of human disturbance, and the seasonal and;or intermittent presence of shallow water and wet mud, make the site attractive to shorebirds for loafing and feeding during high tide periods in the Bay. Bird counts- have recorded numerous species of sandpipers, plovers, gulls, ducks and wading birds in the area, when standing water is present. This project would return the Fast and West Basin of the site to a condition suitable as "managed mudflat" habitat Cor shorebirds by increasing the frequency and duration of seasonal flooding and by providing low elevation "islands" Cor use by resting birds. The DMMS levees also provide potential nesting habitat for certain bird species, including killdeer and burrowing owl. The burrowing owl is a California species of special concern and has been observed nesting in ground squirrel burrows on the site and vicinity in the past. Preconstruction surveys as outlined in the Mitigation Program would be implemented to avoid any impacts to land nesting birds. The outerslopes of the DMMS also provide potential refuge for the endangered salt marsh harvest mouse during high tide and flood events in die adjacent marshlands. The levees surrow~ding the DMMS provide habitat for California ground squirrels, although the levees are maintained to minimize such use. Squirrel burrows if present, could also serve as nest for the burrowing owl (Speotvlocunicularia). Burrowing owl nesting within the Roberts Landing area has been previously documented, although none are known to have nested on levees within the DMMS in over 10 years. No construction equipment or activity would take place in sensitive wetland areas which are located near the DMMS to the east and south. Therefore, no reduction in the numbers of any unique, rare, or endangered species of animals would be antici ated. San Leandro Dredged Material Management Site 9 March / 2004 Sediment Removal Project