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CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> April 16 , 1998 Submission #: 9804155 <br /> CONSTRUCTION TESTING & ENG. i <br /> Atten: Steve Teel <br /> Project: CINTRA PARK, PHASE IT P oject#: 20-0445B <br /> Received: April 9 , 1998 <br /> re: Surrogate report for 5 samples for Gasoline BTEX MTBE analysis . <br /> Method: SW846 8020A Nov 1990 / 8015Mod <br /> Lab Run#: 12169 <br /> FMatrix: WATER <br /> % Recovery <br /> Sample# Client Sample 1D Surrocrate Recovered Limits <br /> it 179890-1 PMW1 TRIFLUOROTOLUENE 117 65-135 <br /> 179890-1 PMW1 4-B OMOFLUOROBENZENE 83 . 6 65-135 <br /> 179891-1 PMW2 TRIFLUOROTOLUENE 0 . 579 65-135 <br /> F179891-1 PMW2 4-B OMOFLUOROBENZENE 1 . 09 65-135 <br /> 179892-1 PMW3A TRIFLUOROTOLUENE 107 65-135 <br /> 179892-1 PMW3A 4-B OMOFLUOROBENZENE 76 . 9 65-135 <br /> F179893-1 PMW3B TRIFLUOROTOLUENE 117 65-135 <br /> 179893-1 PMW3B 4-B OMOFLUOROBENZENE 82 . 5 65-135 <br /> k 179894-1 DRUM TRIFLUOROTOLUENE 107 65-135 <br /> 179894-1 DRUM 4- ROMOFLUOROBENZENE 84 . 4 65-135 <br /> % Recovery <br /> Sam le C Sample a Sur o ate Recovered Limits <br /> 180513-1 Reagent blank (MDB) TRIFLUOROTOLUENE 129 65-135 <br /> 180513-1 Reagent blank (MDB) 4- ROMOFLUOROBENZENE 83 . 2 65-135 <br /> 180514-1 Spiked blank (BSP) TRIFLUOROTOLUENE 130 65-135 <br /> ~ 180514-1 Spiked blank (BSP) 4- ROMOFLUOROBENZENE 86 . 1 65-135 <br /> r 180515-1 Spiked blank duplicate (BSD)TRIFLUOROTOLUENE 117 65-135 <br /> i 180515-1 Spiked blank duplicate (BSD)4- ROMOFLUOROBENZENE 87 . 6 65-135 <br /> r^ <br /> F <br /> F <br /> V132 <br /> F. nCSURR1229 V1 NGS 16-Apr-96 13:4 <br /> E <br /> 1220 Quarry Lane e Pleasanton, Galifornia 94566-4756 <br /> fi (510) 484-1919-Facsimile 510) 484-1096 <br /> Federal ID #68-0140157 <br />