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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 /> Amended 09/06/91 <br /> Source: Stockton Unified School. District, Prod . No. 0089003 <br /> Lab. No. : 917642 <br /> Sample I. D. : 132 <br /> Matrix: Soil <br /> Depth: -- <br /> Date Collected: 08/19/91. <br /> Time Collected: 1048 <br /> Collected by: HLI <br /> Date Extracted: -- <br /> Date Analyzed: 08/22/91 <br /> EPA Method: 8020 <br /> Analysis Units Analytical Results Det. Lim. * <br /> Benzene ug/Kg <2500 2500 <br /> Toluene ug/Kg <2500 2500 <br /> Ethylbenzene ug/Kg 42 , 000 2500 <br /> Total Xylene ug/Kg 350, 000 2500 <br /> i <br /> *High detection limit due to matrix interference caused by non-8020 <br /> compounds. <br /> Comments: Results reported in micrograms per kilogram. <br /> Far- <br /> Analyst <br /> r / <br /> Analyst Poll CheungManager <br /> -4/— la�� <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 />