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Firestone Tire and fubber Company Page 4 <br />' Stockton, CA , work Plan <br />' Site Assessment Protocol <br /> Normal site assessment protocol will be used at the site . Health <br /> and safety considerations will follow Ryan Murphy' s plan used <br /> during the tank removal work The augers and equipment used for <br /> each boring will be decontaminated between borings . Each boring <br /> will be logged and soil cuttings will be retained for disposal <br /> with excavated soils Soil and groundwater samples will be <br /> preserved and transported to a California certified laboratory <br /> under chain-of-custody protocol Monitoring wells, if required, <br /> will be appropriately screened and packed, and completed at the <br /> surface with a bentonite concrete surface seal and a well cover. <br /> If well (s) are installed, the wells will be developed and <br /> groundwater samples retrieved for analysis After groundwater <br /> sampling, the wells will be allowed to stabilize and then levels <br /> ' in each well will be surveyed to establish groundwater level at <br /> this site <br /> REMEDIATION <br /> Because of the clayey soils in the area, it is assumed that the <br /> constituents detected in the soils have not spread laterally nor <br /> vertically to any great extent Therefore, the proposed <br /> remediation alternative for the Tank 5 site is excavation of <br /> soils, once the site assessment work confirms the above <br /> assumptions . Tank 16 assessment and remediation work by <br /> excavation will have been performed by the time Tank 5 assessment <br /> work is complete. <br /> For the excavation work, Firestone is proposing to perform the <br /> work as follows : <br /> • EPA Generator Number CAD 982002040 <br /> • Contractor: Ryan Murphy Inc , Corona, CA <br /> Contractors License- 516337 (A, B, C61, D40 , Hazardous) <br /> • Site Drilling Spectrum, Stockton, CA <br /> • Hazardous waste Hauler. Dillard Trucking, Byron, CA <br /> 94514 <br /> • Disposal Site <br /> Hazardous: Laidlaw, Buttonwillow, CA 93268 <br /> Non-Haz : McKittrick, Kern County, CA <br /> • Certified Laboratory. Curtis and Thompkins, Berkeley, CA <br /> After excavation of the soils, the side walls will be sampled and <br /> analyzed for the above noted constituents in the Tank 5 drilling <br /> work <br /> I <br />