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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 % 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 . 10mq/Kg <br /> Total Xylenes <0 . 10mg/Kg <br /> TPH as Gasoline < 20mq/Kg <br /> Stewart PaaoisKy <br /> Sanlor Chemist <br /> 1046 011'�L DrU L SUI It I).i�i5, ( A 9'�O10 • {'�10�1 757-09-10 753-0091 <br />