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h. Expose people or structures to a significant risk of loss, injury or death involving flooding, including flooding as a result of the failure of a levee or dam. No Impact. The proposed project will not involve the development of any structures or result in the exposure of people or structures to risks associated with flooding. There are no major levees or dams close to the project area that would expose people to significant risks involving flooding due to failure of levee or dam (SWRCB 2003). i. Inundation by seiche, tsunami or mudflow. No Impact. The risk of inundation by seiche, tsunami or mudflow is insignificant because the proposed project site is characterized as a large, open, and inactive gravel mine and the Site is located a considerable distance away from any large body of water(SWRCB 2003). In addition, because the project does not involve the development of structures or hardened surfaces the existing risks regarding inundation by seiche, tsunami or mudflow will not be affected; this is not considered a potential impact of the project. Findings of Significance: ❑ Potentially Significant Impact ❑ Potentially Significant Unless Mitigated X Less Than Significant Impact ❑ No Impact 9. Land Use and Planning 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 e Removal of localized areas of deeper soil containing elevated concentrations of metals or pyrolytic oil. Description of Environmental Setting: The project site is approximately 50 acres and consists primarily of an abandoned gravel pit 3 miles south of the City of Tracy, California. The Site is located along South MacArthur Drive and is zoned AG-40. This zone designation allows agricultural uses for parcels greater than 40-acres. Currently, the Site is vacant. Remnants of burnt tires, ash, and solidified pyrolytic oil are present on the ground surface in the burn areas. The gravel pit area is predominantly covered with ruderal grasses and patches of shrubs and is easily accessed via meandering gravel roads. Two active aggregate mining operations are located adjacent to the Site. Teichert Aggregate is north of the Site and RMC Pacific Materials is south of the Site. An abandoned Western Pacific Railroad spur borders the Site to the northwest. An asphalt plant is located west of the Site and an apricot orchard to the east.The closest residence is located approximately%mile east of the Site. 35