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CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> March 23 , 1998 Submission #: 9803170 <br /> CONSTRUCTION TESTING & ENG. <br /> Atten: Steve Teel <br /> Project: CINTRA PARK P oject#: 20-0445B <br /> Received: March 13 , 1998 <br /> re: Surrogate report for 8 samples f r Gasoline BTEX analysis . <br /> - Method: SW846 8020A Nov 1990 / 8015Mod <br /> Lab Run#: 11741 <br /> Matrix: SOIL <br /> % Recovery <br /> Sample# Client Sample ID Surrocrate Recovered Limits <br /> 175088-1 SB-1, 10 . 5-11 . 0 TRI LUOROTOLUENE 75 . 9 65-135 <br /> 175088-1 SB--1, 10 . 5-11 . 0 4-B OMOFLUOROBENZENE 83 . 5 65-135 <br /> 175089-1 SB-1, 15 . 5-16 . 0 TRI LUOROTOLUENE 58 . 6 65-135 <br /> 175089-1 SB-1, 15 . 5-16 . 0 4-B OMOFLUOROBENZENE 70 . 6 65--135 <br /> . 175090-1 SB-1, 20 . 5-21 . 0 TRY LUOROTOLUENE 66 . 6 65-135 <br /> 175090-1 SB-1, 20 . 5-21 . 0 4-B OMOFLUOROBENZENE 75 . 5 65-135 <br /> r- 175091-1 PMW1, 12 . 5-13 . 0 TRI LUOROTOLUENE 64 . 0 65-135 <br /> I 175091-1 PMW1, 12 . 5-13 . 0 4-BEIOMOFLUOROBENZENE 50 . 2 65-135 <br /> µ ' 175092-1 PMW1, 13 . 0-13 . 5 TRI LUOROTOLUENE 65 . 6 65-135 <br /> 175092-1 PMW1, 13 . 0-13 . 5 4-B OMOFLUOROBENZENE 74 .4 65-135 <br /> 175093-1 PMW1, 16 . 0-16 . 5 TRI LUOROTOLUENE 64 . 5 65-135 <br /> � • 175093-1 PMW1, 16 . 0-16 . 5 4-BFI.OMOFLUOROBENZENE 77 . 6 65-1.35 <br /> 175095-1 PMW1, 23-23 . 5 TRI LUOROTOLUENE 79 . 0 65-135 <br /> 175095-1 PMW1, 23-23 . 5 4-B OMOFLUOROBENZENE 89 . 6 65-135 <br /> 175096-1 SB-3 , 10 . 5-11 . 0 TRI LUOROTOLUENE 80 . 0 65-135 <br /> 175096-1 SB-3 , 10 . 5-11 . 0 4-BEI.OMOFLUOROBENZENE 85 . 1 65-135 <br /> % Recovery <br /> Samvle# OC Sam le TMe Surrocrate Recovered Limits <br /> 176557--1 Reagent blank (,MDB) TRI LUOROTOLUENE 81 . 7 65-135 <br /> 176557-1 Reagent blank (MDB) 4-B OMOFLUOROBENZENE 103 65-135 <br /> 176558-1 Spiked blank (BSP) TRI LUOROTOLUENE 80 .4 65-135 <br /> i 176558-1 Spiked blank (BSP) 4-B OMOFLUOROBENZENE 89 . 0 65-135 <br /> 176559-1 Spiked blank duplicate (BSD)TRI LUOROTOLUENE 67 . 4 65-135 <br /> 176559-1 Spiked blank duplicate (BSD)4-B OMOFLUOROBENZENE 1.05 65--135 <br /> 176560-1 Matrix spike (MS) TRI LUOROTOLUENE 65 . 7 65-135 <br /> 176560-1 Matrix spike (MS) 4-BIZOMOFLUOROBENZENE 74 . 6 65-135 <br /> 176561-1 Matrix spike duplicate (MSD)4-B OMOFLUOROBENZENE 1 . 78 65-135 <br /> V132 <br /> QCSURR7229 VINCE23-Mar-9B M5 <br /> F-+ <br /> 1220 Quarry Lane• Pleasanton, California 94566-4756 <br /> (510) 484-1919• Facsimile (510) 484-1096 <br /> Federal ID#68-014 157 <br />