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No Impact. The project site has been used for mining and industrial purposes. The approximately 50 acre site is currently a grassy gravel pit. There is no Prime Farmland, Unique Farmland, or Farmland of Statewide Importance at the project site (California Department of Conservation 2003 and Funderberg 2003). b. Conflict with existing zoning or agriculture use, or Williamson Act contract. No Impact. The project site is currently zoned for agricultural use (AG-40), but is not used for agricultural purposes(California Department of Conservation 2003 and Funderberg 2003). The activities proposed for this site will not conflict with this current zoning designation. There are no Williamson Act contracts on the land (Funderberg 2003 and SJCC 2000). C. Involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland, to non-agricultural uses. No Impact. This Site is not currently used as Farmland; therefore, no loss of Farmland would occur(SJCC 2000). Findings of Significance: ❑ Potentially Significant Impact ❑ Potentially Significant Unless Mitigated ❑ Less Than Significant Impact X No Impact 3. Air Quality Project activities likely to create an impact: • Removal of top 18 to 24 inches of burned material, ash, and visibly affected soil within gravel pit area • Removal of localized areas of deeper soil containing elevated concentrations of metals or pyrolytic oil • Transportation of contaminated materials to off-site disposal facility Description of Environmental Setting: Affected Environment (Setting) • Meteorology and Topography.The primary factors affecting local air quality are the locations of air pollutant sources and the amounts of pollutants emitted, but meteorological and topographical conditions also are important. Atmospheric conditions such as wind speed, wind direction, and air temperature gradients interact with the physical features of the landscape to determine the movement and dispersal of air pollutants. The project area is located in the western portion of the San Joaquin Valley. The project area is bordered on the western side by the Altamont Hills (several miles to the west). The Altamont Pass provides the major air flow passage from the Livermore Valley to the San Joaquin Valley. The rest of the surrounding area is relatively flat. The project area has a 7