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San Joaquin County Environmental Checklist County is in the Great Valley region of the California Floristic Province (Hickman 1993),which was once characterized by extensive marshes, riparian woodlands,and grassland communities. A Jones& Stokes biologist conducted a reconnaissance-level field survey of the landfill property on June 3,2005. The vegetative composition of the landfill proeprty consists mostly of nonnative annual grasses and ruderal species dominated by Italian ryegrass(Lolium multiorum),slender oat(Avena barbata), and soft chess(Bromus hordeaceus),with scattered white-tipped clover (Trifolium variegatum),vetch(Vicia sp.),and yellow star-thistle(Centaurea solstitialis). Seasonal wetlands(including freshwater marsh and vernal pools) are present along a drainage(South Paddy Creek)that flows east to west through the northern undeveloped portion of the landfill property. A retention pond on the eastern portion of the landfill property receives stormwater runoff from the landfill facility. A narrow band of riparian habitat along the northern and western perimeter of the retention pond consists mostly of willows(Salix sp.)and Fremont cottonwood(Populus fremontii). Small patches of riparian habitat also occur around seasonal wetlands in the northern portion of the landfill property. Two elderberry shrubs(host plant for the valley elderberry longhorn beetle,a species listed as threatened under the federal Endangered Species Act[ESA])are growing in the vicinity of a seasonal wetland along the western side of the landfill entrance road. Developed areas within the project area include existing building structures and four separate modules(refuse disposal sites)located in the southern two-thirds of the project area. Ornamental trees(e.g.,eucalyptus[Eucalyptus globules], cottonwood,maple[Acer sp.], and pine [Pinus sp.])and landscaped areas are present along the entrance road and around the perimeter of the building structures. Surrounding habitats and land uses consist of vineyards to the west and east and annual grassland/pasture to the north and south. Special-Status Species For the purpose of this Initial Study(IS),special-status species are defined as plants and animals that are legally protected under ESA and the California Endangered Species Act(CESA)or other regulations and species that are considered sufficiently rare by the scientific community to qualify for such listing. Special-status plants and wildlife fall into the categories listed below. ■ Species listed or proposed for listing as threatened or endangered under the federal ESA (50 CFR 17.12 [listed plants],50 CFR 17.11 [listed animals],and in various notices in the Federal Register[FR] [proposed species]). ■ Species that are candidates for possible future listing as threatened or endangered under the federal ESA(69 FR 24876,May 4,2004). Notice of Preparation for the June 2006 North County Recycling Center and Sanitary Landfill 2-24 Permit Revision J&S 06307.06