Environmental Declaration WPCP 20240409

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L S A $AN LEANDRO TREATMENT WETLAND PROJECT BIOLOGICAL ASSESSMENT SA LEAN DRO, ALAMEDA COUNTY, CALIFORNIA APRIL 2020 2.2.3 Federally Listed Birds and Protection Measures The avoidance and minimization measures described below have been incorporated into the project and will serve as mitigation measures to offset potential effects to the federally listed western snowy plover. Implementation of the following measures would reduce potential adverse effects to western snowy plovers: The project shall avoid construction activities during the bird nesting season (February 1 through August 31). If construction activities are scheduled during the nesting season, a qualified biologist shall conduct a pre -construction survey for nesting western snowy plovers within suitable nesting habitat on and within 250 feet of the project site (where accessible). The pre - construction survey shall be conducted no more than 14 days prior to the start of work. If the survey indicates the presence of nesting snowy plovers, the USFWS shall be contacted in order to determine the appropriate protective buffer zones to be established around the nests. 2.3 ACTION AREA The Action Area is defined in 50 Code of Federal Regulations § 402.02 as "all areas to be affected directly or indirectly by the Federal action and not merely the immediate area involved in the action." For the purposes of this BA, the Action Area was defined by analyzing the potential extent of effects of the proposed project including temporary impacts to habitat in the tidal slough and species sensitivity to human -caused disturbance. The Action Area includes the entire project area and extends approximately 25 to 75 feet into the tidal slough (Figure 2). 18 P:\TER2001\BA\$an Leandro Treatment Plant BA 4-7-20.docx (04/07/20)