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CHEVRON #9-7180 2 .- = 3O July 1991 <br /> s <br /> } <br /> ground water samples, one in the fall of 1991':and one in the spring of 1992, <br /> and install several borings in the former tank pit area. Soil" samples should <br /> be collected for analysis beginning at about 19 feet and every five feet <br /> thereafter until the ground water table .is encountered. A final soil sample <br /> should be collected just above the water table. <br /> If the -ground water and soil sample results have non-detectable or otherwise <br /> acceptable levels of contamination, we. may then close this site. 'If you have <br /> any questions, please call me at (916) 361-5726-. <br /> y J ' <br /> iLIZA TH A. -THAYER <br /> Assoc ate Engineer <br /> i . <br /> k <br /> k. <br /> y r E <br /> , i' <br />