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August 8, 1988 AGS Job No. 38053-1 <br /> Former Texaco Service Station, Manteca, California <br /> All drill cuttings generated during excavation will be left in <br /> piles at the site .on plastic sheeting and will be covered with <br /> plastic.. Disposal of the soil will remain the responsibility of <br /> I <br /> the property owner. Applied GeoSys ems can arrange to have the <br /> i <br /> soil treated, if necessary, or removed to an appropriate disposal <br /> I <br /> facility with the owner' s authorization. <br /> Soil samples will be collected approximately 10 feet below grade <br /> // <br /> from the sidewalls of the tank pit by using a hand-operated <br /> percussion sampler attached to an extension rod to drive a clean <br /> brass sleeve into the soil. The sleeve will be removed from the <br /> sampler and sealed with aluminum fail, plastic caps and airtight <br /> tape. The sample will then be labeled and placed in iced <br /> storage. 1 <br /> MONITORING WELL CONSTRUCTION <br /> Monitoring wells will be constructed in the borings using thread- <br /> jointed, 2-inch-inner-diameter, Schedule 40 polyvinyl chloride <br /> (PVC) casing. No chemical cements, glues, or solvents will be <br /> used in well construction. The sc eened portion of each well <br /> r <br /> will consist of factory-perforated casing with 0. 020-inch-wide <br /> slots.. The well screen will extend from the total depth of the <br /> well to a point approximately 10 feet above the ground-water <br /> 11 <br /> App/led GeoSystems <br />