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EN( ONMENTAL AUDIT, INC. <br /> 0 1000-A ORTEGA WAY • PLACENTIA, CA 92670-7125 <br /> 714/632-8521 • FAX: 714/632-6754 <br /> (S�e✓I+ n'I e c�i`ro <br /> September 11, 991 <br /> Project No. 1232 <br /> Ms. Eleanor Ratliff, REHS <br /> Environmental Health Specialist <br /> San Joaquin County <br /> Public Health Services <br /> Environmental Health Division <br /> P.O. Box 2009 <br /> 1601 East Hazelton Avenue <br /> Stockton, CA 95201 <br /> SUBJECT: PROPOSED INVESTIGATION OF PRODUCT PIPING <br /> 5400 Pacific Avenue, Stockton <br /> Site Code 2163 <br /> Dear Ms. Ratliff: <br /> Pursuant to our telephone conversation of this date, this <br /> letter describes the activities that Environmental Audit, Inc. <br /> (EAI) proposes to complete in conjunction with the product <br /> piping associated with the underground storage tanks previously <br /> removed from the site. This work will be completed on September <br /> 12, 1991, the same day that representatives of Stone Brother <br /> will be replacing a broken section of sewer line at the site. <br /> EAI proposes to collect soil samples at 10 foot intervals <br /> along the product piping. The samples will be collected in <br /> brass tubes fitted inside a sliding drive-hammer. The samples <br /> will be collected from approximately two feet below the product <br /> piping. Each sample will be tested for total petroleum <br /> hydrocarbons using modified EPA method 8015 (LUFT Manual Method) <br /> and for benzene, toluene, xylenes and ethylbenzene using EP <br /> Method 8020. The samples will be labeled, handled and <br /> transported, and sampling equipment decontaminated as described <br /> in the EAI Work Plan previously submitted to and approved by the <br /> County. <br /> EAI has also been instructed by Montgomery Ward to collect <br /> samples for analytical testing from beneath the broken section <br /> of sewer line to be replaced by Stone Brothers representati es. <br /> PLANNING,ENVIRONMENTAL ANALYSES AND <br /> HAZARDOUS SUBSTANCES MANAGEMENT AND REMEDIATION <br />