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a, <br /> _ r . <br /> .. <br /> 0 <br /> r rPrecision Analytical Laboratory, Inc. <br /> 4}36 LAKESIDE i?RIVE,RICHMOND,C 494806 PHONE(415)222-3002 FAX(415)222-1251 <br /> CERTIFICATE DF ANALYSIS ' <br /> STATE LICENSE NO. E 750 <br /> Received: 7/31/91 <br /> Reported- 8/13/91. <br /> -s Attn: S. Mills job n: 72669 <br /> International Technology Corporation <br /> 71 4585 Pacheco Boulevard <br /> Martinez, CA 94553 <br /> Project: B.P. - Stockton/390844 <br /> Matrix: Soil <br /> EPA METHOD 8020 <br /> PURGEABLE AROMATICS <br /> mg/Kg <br /> Lab ID: 72669--4 <br /> lye C ID: 073091MW5-1 <br /> I - om ound <br /> ., CConcc-ntration Limit of Detection <br /> Benzene <br /> ND<0.005 <br /> , t Toluene ND<0005 0.005 <br /> . <br /> t Chlorobenzene 0.005 <br /> ND<0.005 <br /> Ethyl Benzene 0.005ND<0.005 <br /> e Xylenes <br /> �°" 0.005 <br /> �j ' 1,4-Dichlorobenzene ND<0.005 0.005 <br /> ND<O.005 0.005 <br /> 1,3-Dichlorobenzene ND<0.005 <br /> 1,2-Dichlorobenzene0,905 <br /> ND<0.005 0.605 <br /> ND = Not Detected at or above limit of detection. <br /> i..: Spike Recovery: <br /> Benzene: 89% <br /> Toluene: 82!k <br /> o-Xylene: 85% <br /> ccn,0(k U <br /> ---------- <br /> Senior Organic Chemist <br /> SS/td <br /> OUTSTANDING QUALITY AND SEA,VICE <br /> CALIFORNIA STATE CERTIFIED LABORATORY <br />