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OGT-15-98 THU 03:54 PM ACCULABS DAVIS FAX NO. 530 753 6091 P. 06/09 <br /> Acculabs Inc. October 12, 1998 <br /> Sample Log 19136 <br /> QC Report for EPA 8020 & Modified EPA 8015 <br /> Run Log : 2174Y <br /> From : Fuller Mobile Home Park (Prod. # 7GO22-001-01) <br /> Sample(s) Received : 10/08/98 <br /> Matrix Spike <br /> Matrix Spike Duplicate <br /> Parameter Recovery % Recovery RPD <br /> Benzene 102 106 4 <br /> Ethylbenzene 102 103 1 <br /> TPH as Gasoline 123 137 11 <br /> * RPD = Relative Percent Difference <br /> Parameter Laboratory control Sample <br /> % Recovery <br /> • <br /> Benzene 112 <br /> Ethylbenzene 111 <br /> Gasoline 123 <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 /> Stewart Pdqolsky <br /> senior Chemist <br />