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Executive Summary 2 <br /> Southland Store No. 17647, 1048 W.Yosemite Avenue,Manteca,California August 10, 1998 <br /> Services Environmental Health Division (SJCEHD). Samples will be analyzed for BTEX and TPH-G by <br /> EPA methods 8015/8020, the oxygenates: TBA, MTBE, DIPE, ETBE, TAME by EPA method 8260, and <br /> total lead by EPA method 6010. If groundwater is encountered, water samples will be collected and <br /> analyzed for the same analytes as the soil. <br /> Following removal of the existing USTs at the site, construction activity will begin to install the new USTs <br /> and dispenser island at the site. The new tanks will be installed on the northwestern portion of the <br /> property with the new fuel dispensers placed slightly north of the existing dispensers. Approximately <br /> 500 cubic yards of soil will be generated during the excavation of the new tank pit. Soil samples will be <br /> collected to characterize the soil. Soil samples will also be collected from the floor of the new tank pit <br /> excavation. <br /> If groundwater is encountered in the new tank excavation, tank pit dewatering may be required to <br /> facilitate installation of the new tanks. Samples will be collected of the groundwater for proper <br /> characterization. If the water sample analytical results indicate the water is impacted with gasoline <br /> hydrocarbons, the water will be removed from the tank excavation using vacuum trucks and <br /> transported as non-hazardous to a licensed treatment facility. If hydrocarbon-impacted <br /> soil/groundwater is encountered in the new tank pit excavation, ten-inch diameter conductor casing(s) <br /> may be installed between the two new tanks to be used in future site investigations. All soil and/or <br /> groundwater sampling at the site will be conducted under the direction and observation of the SJCEHD. <br /> A majority of the soil generated will be used to backfill the old tank excavation. The remaining soil will <br /> either be hauled to a local landfill or a licensed waste disposal facility. <br /> Future Activities at the Site <br /> If contamination is encountered, a work plan for site assessment will be submitted to the SJCEHD. The <br /> site assessment may include installation of soil borings or groundwater monitoring wells define the <br /> extent of impacted soil and groundwater beneath the site. A well search will also be conducted to <br /> locate all water supply wells within a 2,000-foot radius of the site. <br /> 17647 EXE.LTR <br /> FLUOR DANIEL GTI <br /> 04 <br />