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!;XREE <br /> , <br /> XLEINFELDER <br /> 2 BACKGROUND <br /> 1 <br /> w. Food and Liquor Store 37 at 15 East Grantline Road, Tracy, California <br /> i (Plate 1) is a convenience retail store owned by The Customer Company, <br /> which is based in Benicia, California. Kleinfelder:s contact person with <br /> The Customer Company is Mr. <br /> P Y John Johnson. As <br /> ti Part of a company renovation <br /> program, The Customer Company is remodeling the store and installing new <br /> underground .fuel storage tanks. <br /> The existing unleaded and regular gasoline storage tanks were excavated on <br /> f March 3 1988 <br /> ' . Ground water was encountered in the excavation at <br /> approximately 7 feet: <br /> Mr. Jaime FaviZa, the SJLHU representati <br /> requested that two ;►e <br /> water samples be ,ollected from the excavation <br /> , . samples were not requested. . . Soil <br /> Results of the water samples were presented in a Kleinfelder letter to The <br /> Customer .Company dated March 10, 198$. Visual observations and analytic <br /> al <br /> results. indicate petroleiun hydrocarbons were present in the ground water. <br /> Total petroleum hydrocarbons <br /> (TPIi) .were detected at 59 anal 88 mg/l, <br /> benzene. was detected at 2 and,�QQ and 1Q,OQQ ug/l, Total organic lead and i <br /> ethylene dibromide concentrations were below laboratory detection limits <br /> or levels of con <br /> L, The SJLHD requested further vertical <br /> and horizontal ..assessment <br /> contamination i <br /> 1" n a letter dated March -11-, 1988. Kleinfelder-pr paoa <br /> f proposed : scopered <br /> ;: 'of work in a ground water assessment work plan dated Mar <br /> � 21; 1988. . The SJLHD a _ ch <br /> a approved implementation of the work plan by issuing a <br /> �F ` t boringLj permit on March 28, 1988. <br /> ' I <br /> 97- 88-502 . 2 <br /> i <br /> a - <br />