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=r Ji i <br /> DEL- TECH ECH Geotechnical Support Services 9� <br /> tiFl <br /> Mary Meays February 23, 1995 <br /> San Joaquin County Environmental Health <br /> 445 N San Joaquin Street <br /> Stockton, CA <br /> RE: 0 AMENDMENT TO WORKPLAN <br /> LOCATION: GEORGES SERVICE 1600 DURHAM FERRY ROAD, TRACY, CA. <br /> Ms Meays, <br /> In response to the letter we received from you on February 20, 1995, the following amendments <br /> and claritications to the work plan are submitted <br /> --------------------------------------------------------------__------------------------------------------------------- <br /> • Item #1 <br /> A field portable PID (Thennodine 580B) will be used to screen for volatile aromatics in all of <br /> the soil borings during all of the drilling activities <br /> The hand boring soil samples will be collected with a drive sampler <br /> The hollowstem drilling ng will use a split spoon sampler <br /> Item #2 <br /> ----------------------------------------------------------------------------------------------------------------------- <br /> Each soil and water sample submitted to the laboratory will be analyzed for the presence of total <br /> lead <br /> In the vicinity of the kerosene tank TPH-diesel EPA Method 8015 Mod and TRPH-total <br /> recoverable hydrocarbons EPA 418 1 laboratory analysis will be completed for soil samples <br /> collected in this area <br /> ----------------------------------------------------------------------------------------------------------------------- <br /> Item #3 <br /> "finished off to grade" <br /> Our intent is to trowel the wet cement at the top of the boring and smooth it out to the Surface, <br /> . so as it is level with the surrounding surface grade and therefore does not create a hazard <br /> ----------------------------------------------------------------------------------------------------------------------- <br /> 10624 Olive Avenue, Oakdale, CA 95361 (209) 847-8757 o Fax (209) 847-7744 <br />