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� 1 <br /> r CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> F. April 16 , 1998 Submission #: 9804155 <br /> F CONSTRUCTION TESTING & ENG. <br /> Atten: Steve Teel <br /> FProject: CINTRA PARK, PHASE II P oject#: 20-0445B <br /> Received: April 9, 1998 <br /> re: Surrogate report for 2 samples for Gasoline BTEX MTBE analysis . <br /> ... Method: SW846 8020A Nov 1990 / 8015Mod <br /> Lab Run#: 12186 <br /> Matrix: WATER <br /> % Recovery <br /> r- <br /> Sample# Client Samle ID Surr ate Recovered Limits <br /> 179891-2 PMW2 TRI LUOROTOLUENE 85 .4 65-135 <br /> 179891-2 P W2 4-B OMOFLUOROBENZENE 80 . 8 65-135 <br /> 179891-3 PMW2 TRI LUOROTOLUENE 127 65-135 <br /> r 179891-3 PMW2 4-B OMOFLUOROBENZENE 87 . 3 65-135 <br /> • • 179893-2 PMW3B TRI LUOROTOLUENE 78 . 8 65-135 <br /> 179893-2 PMW3B 4-B OMOFLUOROBENZENE 82 . 2 65-135 <br /> % Recovery <br /> Sample# OC Sample Type Surrocrate Recovered Limits <br /> 180663-1 Reagent blank (MDB) TRI LUOROTOLUENE 130 65-135 <br /> 180663-1 Reagent blank (MDB) 4-B OMOFLUOROBENZENE 87 . 7 65-135 <br /> 180664-1 Spiked blank (BSP) TRI LUOROTOLUENE 132 65-135 <br /> 180664-1 Spiked blank (BSP) 4-B OMOFLUOROBENZENE 83 . 6 65-135 <br /> 180665-1 Spiked blank duplicate (BSD)TRT LUOROTOLUENE 124 65-135 <br /> 180665-1 Spiked blank duplicate (BSD)4-B OMOFLUOROBENZENE 80 . 7 65-135 <br /> F <br /> F <br /> E + <br /> V132 <br /> QCSURR1229 VINCE 16-Apr-98 13A <br /> 1220 Quarry Lane• Pleasanton, C lifornia 94566-4756 <br /> (510) 4841919• Facsimile ( 10) 484-1096 <br /> Federal ID#68-014 157 <br />