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Fes <br /> February 14, 1992 - <br /> ARCO Service Station No. 2130, Stockton. California <br /> o Install a maximum of six conductor casings in the former tank cavit_i to allow <br /> soil borings to be drilled between the new tanks at a later date, if necessary. <br /> o Collect and analyze one sample of native soil every 20 linear feet below the <br /> 6 former product lines. <br /> State-certified laboratory for analysis of TPHg and <br /> o Submit soil samples to a <br /> BTEX according to SaCPHS-EHD guidelines. <br /> o Forward laboratory analysis reports of soil samples collected from the former <br /> tank cavity and the former product lines to the SJCPHS-EHD, and obtain <br /> authorization to install new tanks in the former tank cavity and new product <br /> lines in the former product-line trenches. <br /> o Collect four soil samples from each 50 cubic yards of stockpiled soil to be <br /> ® composited in one sample in the laboratory and analyzed for TPHg and <br /> BTEX. If hydrocarbons are detected, soil will be aerated before disposal. <br /> o Prepare a report summarizing tank removal operations and our findings, <br /> conclusions, and recommendations for ongoing work. <br /> FIELD PROCEDURES <br /> '3 Safety Plan <br /> Our Site Safety Plan dated May 1, 1991 was submitted to the SJCPHS-EHD in our May 17, <br /> 1991 work plan. The Site Safety Plan describe-, the basic safety requirements for the tank <br /> removal at the work site. The safety plan is applicable to personnel of RESNA and to <br /> ® subcontractors of RESNA. The RESNA geologist will act as the Site Safety Officer for the <br /> tank removal. Personnel at the site will be informed of the contents of the site safety plan <br /> before work begins. A copy of the plan will be kept at the work site and will be available <br /> for reference by appropriate parties during the work. <br /> 7 <br /> 8 <br /> 300o3.4W <br /> i <br /> i <br />