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TL 489-0510-01 <br /> Page 2 <br /> SAMPLING PROCEDURE <br /> The soil sample was obtained by Mr. Doug Davidson of Twining <br /> Laboratories, Inc. on September 28, 1989. The soil sample was <br /> retrieved from a depth of approximately three feet below the bottom <br /> of the tank excavation, approximately 8.5 feet below surface grade <br /> (BSG) . The location and depth was specified by Mr. Kasey Foley of <br /> the San Joaquin Environmental Health Department. The soil sample <br /> was retrieved using brass sleeves, then plastic caps and <br /> immediately packed in ice for shipment to our laboratory. The <br /> sample was clearly identified and banded with shipping seals. The <br /> sample retrieved in the field was brought to our facility in <br /> Fresno, California on September 29, 1989 . The results of the <br /> sample analysis is presented on the attached table. <br /> We appreciate the opportunity to be of service to you on this <br /> project. If you have any questions regarding the information <br /> contained herein, please do not hesitate to contact our office. <br /> Sincerely, <br /> THEE TWINING LABORATORIES, INC. <br /> Mattthew L. Bullis, RCE <br /> Supervisor <br /> Environmental Engineering Department <br /> MLB.tc <br /> 2 c plus invoice herewith <br /> Presto Modese Visalia Bakersfield <br />