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Acculabs Inc. December 7 , 1998 <br /> ' Sample Log 19343 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> ' Run Log : 2176H <br /> From : SL/Manteca #17647 <br /> Sample(s) Received : 1.2/04/98 <br /> ' Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery Recovery RPD <br /> 1 � <br /> Benzene 97 97 0 <br /> Ethylbenzene 98 99 1 <br /> TPH as Gasoline 108 113 5 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory Control Sample <br /> ' Recovery <br /> Benzene 94 <br /> Ethylbenzene 95 <br /> Gasoline 103 <br /> ' Parameter Method Blank <br /> Benzene <0. 005 mg/Kg <br /> Toluene <0. 005 mg/Kg <br /> Ethylbenzene <0.005 mg/Kg <br /> ' Total Xylenes <0.005 mg/Kg <br /> TPH as Gasoline <1.0 mg/kg <br /> ' I <br /> I <br /> I <br /> I , <br /> Rom Ktoahn <br /> Lob Dlrecto <br /> II I I I I ISI <br /> III I I I � k I <br /> I I I <br /> I I { I I I I I II it <br /> I , <br />