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I <br /> RTLABORATORY REKenneId IJenkslChilton LaboratoryDivision <br /> ` 303 Second Street, Tenth Floor North <br /> San Francisco, CA 94107 <br /> 415-362-6065 ' <br /> For: Helmick & Lerner, Inc. ` ? Received 12/21/90 <br /> Attention: Noel Lerner i Reported 01/09/91 <br />` <br /> Address: 3750 Auburn Blvd., Suite A <br /> dd ess I E <br /> Sacramento, CA 95821 ;'i (HLI Job No. 0089002) <br /> Source: SUSD - Stagg High School, Stockton <br /> Lab. No.: 909658 i <br /> Sample I.D.: 049 l <br /> Matrix: Sail <br /> Depth: 3.5 ft. ! k <br /> Date Collected: 12/20190 <br /> Time Collected: 1301 I� <br /> Collected by: HLI <br /> < Date Extracted: 01/04/91 <br /> Date Analyzed: 01/07/91 <br /> Analytical Method: Calif. DHS LUFT Manual <br /> Analysis Units Analytical Results Det. Lim. <br /> i <br /> Semivolatile Petroleum <br /> Hydrocarbons(1) mg/Kg 1.6 ii 1 I <br /> i <br /> k <br /> i <br /> l � 4 <br /> 1! <br /> (1) Identified as diesel } j <br /> I <br /> 1 ! ! I <br /> i <br /> Comments: Sample was prepared by EPA Method 3540 (Soxhlett'extraction), followed by concentration, per <br /> DHSITri-Regional Board guidelines. Gas chromatographic analysis using flame ionization detection (LUFT <br /> Manual procedure, "Modified 8015"), quantitated using diesel response factor. Commercial diesel was <br /> used as comparison standard. Results reported in milligrams per kilogram, wet (as received) weight basis. <br /> Analyst Lynn Perrine Manager !p 11 a'+l. <br /> This report applies only to the sample investigated and is not necessarily indicative of the quality of apparently identical or similar samples. The liability l <br /> of the laboratory is limited to the amount paid for the report by the issues. The issuee assumes all liability for the further distribution of this report or its <br /> contents and by making such distribution agrees to hold the laboratory harmless against all claims of persons so informed of the contents hereof, <br /> 'l iE <br />