Environmental Declaration WPCP 20240409

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Species San Francisco (saltmarsh) common yellowthroat Geothlypis trichas sinuosa Status (Federal/State) —/SSC Habitat Resident of the San Francisco Bay region, in fresh and salt water marshes; requires thick, continuous cover down to water surface for foraging; tall grasses, tule patches, willows for nesting. Mammals Townsend's western big- —/SSC Found in wooded areas with caves eared bat or old buildings for roost sites. Corynorhinus townsendii townsendii Pallid bat —/SSC Occupies a wide variety of habitats Antrozous pallidus at low elevations. Most commonly found in open, dry habitats with rocky areas for roosting. Big free -tailed bat —/SSC Roosts in buildings, caves, crevices Nyctinomops macrotis in high cliffs or rock outcrops, and —/SSC occasionally in holes in trees. Roosts primarily in trees, 2-40 feet Western red bat Losiurus blossevillii above ground, from sea level up through mixed conifer forests; prefers habitat edges and mosaics with trees that are protected from above and open below with open areas for foraging. Alameda Island mole —/SSC Only known from Alameda Island; Scopanus latimanus partum found in a variety of habitats, especially annual and perennial grasslands; prefers moist, friable soils; avoids flooded soils. Tidal salt marshes of San Francisco Salt marsh harvest mouse FIE/SE, SFP Reithrodontomys raviventris Bay and its tributaries; requires tall, dense pickleweed for cover. Salt marsh wandering shrew —/SSC Middle upper salt marsh with Sorex vagrans holiocoetes dense vegetation cover such as pickleweed; favors areas with abundant drift wood or other surface cover. L SA Potential for Occurrencea No suitable habitat present. May forage at the project site, but not likely to nest due to lack of suitable nesting habitat. Only small patches of low quality habitat present. Closest CNDDB occurrence is a 1995 record at Arrowhead Marsh, approximately 1.9 miles from the project site. Species observed at the Metropolitan Golf Links and Oyster Bay Regional Shoreline (eBird 2020). Suitable roosting or hibernating habitat may be present within structures on or adjacent to the site. No tree hollows or bat roosts observed in the trees during LSA's reconnaissance -level survey. No bats or bat sign observed in concrete outfali structure at the basin. Suitable roosting or hibernating habitat may be present within structures on or adjacent to the site. No tree hollows or bat roosts observed in the trees during LSA's reconnaissance -level survey. No bats or bat sign observed in concrete outfall structure at the basin. Suitable roosting or hibernating habitat may be present within structures on or adjacent to the site. No suitable habitat present. No suitable habitat present. Only known to occur on Alameda Island. Limited band of pickleweed along slough does not provide high quality habitat. No pickleweed present at location of existing outfall. Basin does not support suitable habitat. Closest CNDDB occurrence is a 1938 record at Arrowhead Marsh, approximately 1.9 miles from the project site. Could occur along the tidal slough, although i suitable habitat is limited. Closest CNDDB occurrence is a 1950 record from the Oakland Airport, approximately 0.1 mile from the project site and a 1938 record from Arrowhead Marsh, approximately 1.9 miles from the site. 4/17/20 (P:\TER2001\BA\Special-Status Species Biological Resources Habitat Assessment 4-17-20 .docx) 6