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FEB-27-1997 14 14 �HERWOOD LABS • 2096672581 P 01 <br /> 02127197 <br /> QUALITY CONTROL REPORT DHS CertifICOVon #1400 <br /> volatile Analyses <br /> Client: Foothill Engineering Dote Received: OW12197 <br /> 12'7'83 Paddy Creek Lane Date Started: : 02/12187 <br /> Lodi, CA 95240 Date Complete; 02!13197 <br /> ATTN: Ervin Rifenburg <br /> Lab Report#: H7021201 Lab Sample #8 PH7020B23-0825 <br /> Linear Check; <br /> BTEX Benzene 0.9898_ TPH Cliasolide M <br /> OM <br /> Toluene 0.8987 TPH Diesel NIA <br /> Ethyl Benzene 09988 Mater Oil NIA <br /> Xylenes TRPH (416.1) NIA <br /> MTBE N/A <br /> Std % Re bility MTBE Benzene Toluene Eth Benz Xylenes <br /> BTEC NIA _ 100 103 99 102 <br /> TPH Gasoline _ 109 TPH Diesel NIA <br /> . TRPH (418.1) NIA TPH Motor Oil N/A <br /> Matrix Spike Recoveries MS MSD RPO <br /> MTBE NIA NIA ERR <br /> BTEC Benzene 100.0 102.0 7-0 <br /> Toluene -103.0 101.0 20 <br /> Ethyl Benzene 80.0 B20 a5 <br /> Xylenee 101.0 105.0 39 <br /> TPH Gasoline 1`18,0 — 114.0 4.3 <br /> TPH Diesel NIA NIA <br /> TRPH 41&1 WA <br /> Method Blank MTBE Benzene Toluene Eth Benz Xylenes <br /> STEX - NIA < 3 ugly. t.3 u L ¢ 3 u L. c 3 u L <br /> TPH Gasoline <50 HgtL TPH Diesel/100 r NIA ^TRPH(41&1) NIA <br /> Lr,b Control Sam le% RecoverY EPA Peftrrnence Acceptance Range <br /> S T"EX Benzene 95 37.0 - 1510 <br /> Toluene 95 47.0 - 15010 <br /> Ethyl Benz 101 38.8 - 1020 <br /> Xylenes 102 <br /> 427 * 1379 <br /> TPH Gasoline 108 35.0 - 130.1 <br /> TPH Diel NlA 451 - 135.2 <br /> TRPH (418.9) N/A NfA <br /> Gla aw Poling, Lake Di'te�r <br /> �----ill <br /> TOTAL P 01 <br />