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05/20/96 <br /> QUALITY CONTROL REPORT DHS Cert ificatlon #1400 <br /> Volatile Analyses <br /> Client: DEL-TECH Date Received: 05/15196 <br /> 10624 Ol Iva Ave. Date Started: : 05/16196 <br /> Oakdale, CA 95361 Date Complete: 05117196 <br /> ATTN: DON LIGHT <br /> Lab Report#: HW51601 Lab Sample #s PH6051196-1198 <br /> Linear Ch�ok; <br /> STEX Benzene 0.9996 TPH Gasoline 0.9999 <br /> Toluene 0.9998 TPH Diesel N/A <br /> Ethyl Benzene 0.9988 Motor Oil N/A <br /> Xylenes M9995 TRPH (418.1) N/A <br /> MTBE 0.9999 <br /> Std % Re tabili MTBE Benzene Toluene Eth Benz Xylenes <br /> .BTEX 93 99 102 103 102 <br /> TPH Gasoline 112 TPH Diesel NIA <br /> TRPH (418.1) N/A TPH Motor Oil N/A <br /> Matrix Spike Recoveries j MS MSD RPD <br /> MTBE N/A NIA ERR <br /> BTEX Benzene 96.0 95.0 1.0 <br /> Toluene 98.0 9e.0 21 <br /> Ethyl Benzene 97.0 90.0 7.5 <br /> Xylenes 98.0 99.0 1.0 <br /> TPH Gasoline 94.0 94.0 0,0 <br /> TPH Diesel N/A N/A ERR <br /> TRPH 418.1 N/A <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEX <5 u L <.3 u L <.3 u L <.3 u L <.3 u L <br /> TPH Gasoline <50 ug/L TPH Dlesel/MO NIA TRPH(418.1) N/A <br /> Lab Control Sample% RecoverL EPA Performance Acceptance Range <br /> BTEX Benzene 92 _ _ 37.0 - 151.0 <br /> Toluene 99 47.0 - 150.0 <br /> Ethyl Benz 98 36.9 - 1620 <br /> Xylenes 106 427 - 137.9 <br /> TPH Gasoline 114 35.0 - 130.1 <br /> TPN Diesel NIA 46,1 - 130.2 <br /> TRPH (419.1) N/A N/A <br /> Gloria Poling, Lab Director <br /> q <br />