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rI <br /> lab, . <br /> CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> ' February 8, 1999 Submission #: 9902051 <br /> URS GREINER <br /> Atten: Hollis Phillips <br /> Project: ARCH RD Project#: 43-00066762 . 004000 <br /> Received: February 3, 1999 <br /> re: Surrogate report for 3 samples for Gasoline BTEX analysis . <br /> Method: SW846 8020A Nov 1990 / 8015Mod <br /> Lab Run#: 17280 <br /> Matrix: SOIL <br /> % Recovery <br /> ASample# Client Sample ID Surroaate Recovered Limits <br /> 227406-2 B-2-10 TRIFLUOROTOLUENE 74 .3 53-125 <br /> 227406-2 B-2-10 4-BROMOFLUOROBENZENE 53 . 2 58-124 <br /> 227407-2 B-2-15 TRIFLUOROTOLUENE 89 . 3 53-125 <br /> 227407-2 B-2-15 4-BROMOFLUOROBENZENE 66 . 3 58-124 <br /> 227410-2 B-4-10 TRIFLUOROTOLUENE 86 .4 53-125 <br /> 227410-2 B-4-10 4-BROMOFLUOROBENZENE 69 . 1 58-124 <br /> % Recovery <br /> Sample# OC Sample Type Surroaate Recovered Limits <br /> 227662-1 Reagent blank (MDB) TRIFLUOROTOLUENE 99 . 1 53-125 <br /> 227662-1 Reagent blank (MDB) 4-BROMOFLUOROBENZENE 84 .4 58-124 <br /> 227663-1 Spiked blank (BSP) TRIFLUOROTOLUENE 95 . 8 53-125 <br /> 227663-1 Spiked blank (BSP) 4-BROMOFLUOROBENZENE 71 .4 58-124 <br /> 227664-1 Spiked blank duplicate (BSD)TRIFLUOROTOLUENE 87 . 7 53-125 <br /> 227664-1 Spiked blank duplicate (BSD)4-BROMOFLUOROBENZENE 67 .4 58-124 <br /> 227665-1 Matrix spike (MS) TRIFLUOROTOLUENE 73 . 7 53-125 <br /> 227665-1 Matrix spike (MS) 4-BROMOFLUOROBENZENE 55 . 1 58-124 <br /> 227666-1 Matrix spike duplicate (MSD)TRIFLUOROTOLUENE 65 . 7 53-125 <br /> 227666-1 Matrix spike duplicate (MSD)4-BROMOFLUOROBENZENE 55 . 1 58-124 <br /> r <br /> V1s2 LEV2 <br /> QCSURR1229 VINCE 09-Fe499 10:5 <br /> 1220 Quarry Lane • Pleasanton, California 94566-4756 <br /> (925) 484-1919 • Facsimile (925) 484-1096 <br /> Federal ID#68-0140157 <br />