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I LABORATORY REP'kwl'T ! Kenf y/Jenks/Chilton, Laboratory Division <br /> 303 Second Street, Tenth Floor North <br /> San Francisco, CA 94107 ; <br /> 415-362-8065 <br /> For: Helmick & Lerner, Inc. i Received 12/21/90 <br /> Attention: Noel Lerner Reported 01/04/91 <br /> Address: 3750 Auburn Blvd., Suite A Quality Control Page j <br /> Sacramento, CA 95821 (HLI Job No. 0089002) l <br /> Ik Source: SUSD - Stagg High School, Stockton <br /> Lab. No.: 909670 <br /> Sample I.D.: 044 <br /> Matrix: Sail ` <br /> Depth: 2 ft. 10 in. ! a <br /> Date Collected: 12/20/90 E <br /> k <br /> I Time Collected: 1218 I ;! <br /> Collected by: HLI ,F <br /> Date Extracted: -- ! ' <br /> Date Analyzed: 12/28/90 <br /> EPA Analytical Method: 8020 <br /> yt II ' <br /> Analysis Units Replicate Analytical Results Det. Lim. <br /> benzene ug/Kg ug/Kg <1 <1 Spike reco" ery 11'28% 1 <br /> � <br /> toluene • uglKg 2 <1 Spike recovery 123% 1 ! <br /> ethylbenzene ug/Kg <1 <1 1 <br /> total xylenes ug/Kg <1 <1 ! 1 f <br /> 1 <br /> 3 <br /> 1 <br /> I <br /> t i <br /> .i <br /> 'i <br /> Comments: Results reported in micrograms per kilogram, wet (as received weight) basis. <br /> Analyst Tina Mah, Kevin Draper Manager <br /> This report applies only to the sample investigated and is not necessarily indicative of the quality of apparently identical or similar samples. The Ilability <br /> of the laboratory is limited to the amount paid for the reportby the issues. The issues assumes all Ilability for the further distribution of this report or its <br /> Contents and by making such distribution agrees to hold 11e laboratory harmissa against 411 claims of persons so informed of the coolants hereof. <br /> r <br />