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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 11 samples for Gasoline BTEX analysis. <br /> Method: SW846 8020A Nov 1990 / 8015Mod <br /> Lab Run#: 17271 <br /> ' Matrix: SOIL <br /> % Recovery <br /> Sample# Client Sample ID Surrogate Recovered Limits <br /> 227404-1 B-1-10 TRIFLUOROTOLUENE 76 . 9 53-125 <br /> 227404-1 B-1-10 4-BROMOFLUOROBENZENE 59 . 6 58-124 <br /> 227405-1 B-1-15 TRIFLUOROTOLUENE 88 . 5 53-125 <br /> 227405-1 B-1-15 4-BROMOFLUOROBENZENE 77 . 0 58-124 <br /> 227406-1 B-2-10 TRIFLUOROTOLUENE 12 . 6 53-125 <br /> 227406-1 B-2-10 4-BROMOFLUOROBENZENE 14 . 2 58-124 <br /> 227407-1 B-2-15 TRIFLUOROTOLUENE 41 . 7 53-125 <br /> 227407-1 B-2-15 4-BROMOFLUOROBENZENE 37 . 5 58-124 <br /> 227408-1 B-3-15 TRIFLUOROTOLUENE 56 . 2 53-125 <br /> 227408-1 B-3-15 4-BROMOFLUOROBENZENE 51 . 5 58-124 <br /> 227409-1 B-3-10 TRIFLUOROTOLUENE 83 .4 53-125 <br /> 227409-1 B-3-10 4-BROMOFLUOROBENZENE 77 . 0 58-124 <br /> 227410-1 B-4-10 TRIFLUOROTOLUENE 11 .4 53-125 <br /> 227410-1 B-4-10 4-BROMOFLUOROBENZENE 12 .4 58-124 <br /> 227411-1 B-4-15 TRIFLUOROTOLUENE 84 .4 53-125 <br /> 227411-1 13-4-15 4-BROMOFLUOROBENZENE 78 . 1 58-124 <br /> 227412-1 13-6-9 TRIFLUOROTOLUENE 58 . 1 53-125 <br /> 227412-1 B-6-9 4-BROMOFLUOROBENZENE 56 . 5 58-124 <br /> 227413-1 B-7-8 TRIFLUOROTOLUENE 72 . 0 53-125 <br /> 227413-1 B-7-8 4-BROMOFLUOROBENZENE 66 . 8 58-124 <br /> 227414-1 B-8-8 TRIFLUOROTOLUENE 70 . 7 53-125 <br /> 227414-1 B-8-8 4-BROMOFLUOROBENZENE 60 .4 58-124 <br /> % Recovery <br /> Sample# OC Sample Type Surrocate Recovered Limits <br /> 227534-i Reagent blank (MDB) TRIFLUOROTOLUENE 88 . 7 53-125 <br /> 227534-1 Reagent blank (MDB) 4-BROMOFLUOROBENZENE 84 . 0 58-124 <br /> 227535-1 Spiked blank (BSP) TRIFLUOROTOLUENE 103 53-125 <br /> 227535-1 Spiked blank (BSP) 4-BROMOFLUOROBENZENE 88 . 9 58-124 <br /> 227536-1 Spiked blank duplicate (BSD)TRIFLUOROTOLUENE 101 53-125 <br /> ( 227536-1 Spiked blank duplicate (BSD)4-BROMOFLUOROBENZENE 98 .3 58-124 <br /> V132 LEV2 <br /> OCSURR1229 VINCE 08-Fetr9910:5 <br /> 1220 Quarry Lane a Pleasanton, California 94566-4756 <br /> (925) 484-1919 a Facsimile (925) 484-1096 <br /> Federal ID#68-0140157 <br />