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LABORATORY REPORT PACIFIC ENVIRONMENTAL LABORATORY <br /> 674 Harrison Street <br /> San Francisco, CA 94107 <br /> 415-243-2580 <br /> For Helmick & Lerner, Inc. <br /> Attention John Russell Received 08/20/91 <br /> Address 3750 Auburn Blvd. , Suite A Reported 08/28/91 <br /> Sacramento, CA 95821 <br /> i <br /> Source: Stockton Unified School District, Prod . No. 0089003 <br /> Lab. No. : 917648 <br /> Sample I.D. : 138 <br /> Matrix: Soil <br /> Depth; -- <br /> Date Collected: 08/19/91 <br /> Time Collected: 1215 <br /> Collected by: HLI <br /> Date Extracted: -- <br /> Date Analyzed: 08/22-23/91 <br /> Analytical Method: Calif. DHS LUFT Manual <br /> Analysis Units Analytical Results Det. Lim. <br /> Volatile Petroleum <br /> Hydrocarbons (1) mg/Kg . 06 0. 05 <br /> I <br /> i <br /> Comments: Gas chromatographic analysis using flame ionization detection <br /> (LUFT Manual procedure, "Modified 801511) . Results reported in milligrams per <br /> kilogram. (1) By purge-and-trap, quantitated using gasoline response factor. <br /> fir <br /> Analyst L. Perrine, B. Johnston. Manager A(z kZ4 <br /> . L. Kennedy — <br /> This report applies only to the sample investigated and is not necessarily indicative of the quality of apparently identical or <br /> similar samples The liability of the laboratory is limited to the amount paid for the report by the issuee. The issuee assumes <br /> all liability for the further distribution of this report or its contents and by making such distribution agrees to hold the <br /> laboratory harmless against all claims of persons so informed of the contents hereof. <br />