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r- <br /> Precision Analytical Laboratory, Inc. <br /> 4136 LAKESIDE DRIVE,RICHMOND,CA 94806 RHONE(415)222-3002 FAX(415)222-125{ <br /> CERTIFICATE OF ANALYSIS <br /> STATE LICENSE NO. E 750 <br /> Received: 7/31/91 <br /> Reported: 8/01/91 <br /> • Attn: S. 24ills <br /> Job #: 72668 <br /> International Technology Corporation <br /> 4585 Pacheco Boulevard <br /> Martinez, CA 94553 <br /> Project: B.P. - Stockton <br /> f Matrix: Soil <br /> k Aromatic Volatile Hydrocarbon Analysis <br /> EPA Method 8020 - <br /> mg/kg <br /> Lab ID Client TD Benzene ,MSL Toluene MDL <br /> f 72668-1 Soilcomp - 1 and 0.03 0 ,005 0,014 0,005 <br /> Soilcomp - 2 <br /> Ethyl- <br /> Lab ID Client ID benzene IDIXylenes MDF <br /> t 72668-1 Soilcomp - 1 and 0.15 0.005 0.6 0.005 <br /> Soilcomp - 2 <br /> - f � <br /> 4: <br /> QA/QC: Spike Recovery for Benzene: 102% <br /> Spike Recovery for Toluene: 112% <br /> j ' Spike Recovery for Xylene: 102% <br /> MDL: Method Detection Limit. Compound below this level would not be <br /> r. detected. <br /> Surinder Sidhu <br /> Senior Organic Chemist <br /> SS/td <br /> OUTSTANDING QUALITY AND SERVICE <br /> CALIFORNIA STATE CERTIFIED LABORATORY <br />