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CHRQMALAB, INC. <br /> Environmental Services(SDB) <br />' April 16 , 1998 Submission # 9803455 <br />' HARDING LAWSON (SACRAMENTO) <br /> Atten Gary Haeck <br /> rProject 38737 004 <br /> Received: March 30 , 1998 <br />' re Surrogate report for 1 sample for Gasoline BTEX analysis <br /> Method. SW846 8020A Nov 1990 / 8015Mod <br /> Lab Ruzz#. 12211 <br /> Matrix. SOIL <br /> Recovery <br />' <br /> Sample# Client Sample ID Surrogate Recovered Limits <br /> 177962-1 HP--2SD TRIFLUOROTOLUENE 826 65-135 <br /> 177962-1 HP-2SD 4-BROMOFLUOROBENZENE 509 65-135 <br /> % Recovery <br />' Sample# OC Sample lype Surrogate Recovered Limits <br /> 180958-1 Reagent blank (MDB) TRIFLUOROTOLUENE 96 8 65-135 <br /> 180958-1 Reagent blank (MDB) 4--BROMOFLUOROBENZENE 113 65-135 <br /> 80960-1 Spiked blank (BSP) TRIFLUOROTOLUENE 102 65-135 <br /> 80960-1 Spiked blank (BSP) 4-BROMOFLUOROBENZENE 112 65-135 <br /> 180961-1 Spiked blank duplicate (BSD)TRIFLUOROTOLUENE 99 6 65-135 <br /> r180962-1 Spiked blank duplicate (13SD)4-BROMOFLUOROBENZENE 130 65-135 <br /> 1 <br /> r <br /> r <br /> r <br /> r <br /> r V135 <br /> CICSURR1229 VINCE 16 Apr 98 16 1 <br /> 1 <br />' 1220 Quarry Lane • Pleasanton, California 94.566-4756 <br /> (510) 484-1919• Facsimile (510) 484-1096 <br /> Federal ID #68-0140157 <br />