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' INTERNATIONAL ANALYTICAL <br /> TECHNOLOGY <br /> CORPORATION SERVICES <br /> CERTIFICATE OF ANALYSIS <br /> PACIFIC BELL APRIL 7,1992 <br /> 4585 Pacheco Blvd <br /> Martinez, CA 94553 <br /> Contact Don Kubik, Jr Job # 190916 <br />' CASE NARRATIVE <br /> The Field Analytical Services Mobile Laboratory received the following water samples labeled <br /> 033092MW1 033092MW2 033092MW3 033092FB <br />' Analytical Methodoloav <br /> The samples were analyzed for benzene, toluene,ethyl benzene, and xylenes (BTEX) according <br /> to EPA method 8020, using a gas chromatograph equipped with a photoionization detector <br /> The samples were analyzed for Total Petroleum Hydrocarbons as gasoline, EPA modified <br /> method 8015, on a gas chromatograph equipped with a flame ionization detector <br /> The samples were analyzed for Total Petroleum Hydrocarbons as diesel, modified method <br /> 8015, on a gas chromatograph equipped with a flame ionization detector <br /> Quality Control <br /> Prior to sample analysis an initial five point calibration is preformed for all requested methods <br /> On the day of analysis a check standard for each method is analyzed to evaluate instrument <br /> performance Compound response must be with in 15% of the initial calibration before sample <br /> analysis can begin <br /> Laboratory Duplicates were analyzed at a ratio of 1 per every 10 samples, and Matrix spike <br /> / matrix spike duplicates were analyzed at a ratio of 1 per every 20 samples <br />' evi <br /> hnsoFject <br /> rnanuel H <br /> Analyticalnager <br /> American Council of Independent Laboratories <br /> International Association of Environmental Testing Laboratories <br /> American Association for Laboratory Accreditation <br /> IT Field Analytical Services, 4585 Pacheco Boulevaid, Martinez, CA 94553 681A,92 <br /> 1 <br />