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July 29 , 1998 <br /> Sample Log 18774 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 4175F (Methanol Extracts) <br /> From : SL/Stockton #14117 <br /> Sample(s) Received 07/22/98 <br /> Laboratory Control <br /> Spike Duplicate <br /> Parameter a Recovery o Recovery RPD <br /> Benzene 97 98 1 <br /> Ethylbenzene 103 103 0 <br /> TPH as Gasoline 126 131 4 <br /> Parameter Method Blank <br /> Benzene <0 . 10mg/Kg <br /> Toluene <0 . 10mg/Kg <br /> Ethylbenzene <0 . 10mg/Kg <br /> Total Xylenes <0 . 10mg/Kg <br /> TPH as Gasoline < 20mg/Kg <br /> Stewart PodojLsky� -.- <br /> Senior Cheaist <br /> 1046 Olive Drive., Suite 2 Davi,,, ( A 95616 • (530) 757-0920 Fax (530) 753-6091 <br />