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1 <br /> CHRQMALAB, INC. <br /> Environmental Services(SDB) <br /> August 19, 1997 Submission #: 9708106 <br /> HARDING LAWSON (SACRAMENTO) <br />' Atten: Gary Haeck <br /> Project TVG-THORNTON Project#• 38737 . 002 <br /> Received. August 8 , 1997 <br />' re: Matrix spike report for Gasoline BTEX analysis . <br /> Method SW846 8020A Nov 1990 / 8015Mod <br /> Matrix: WATER <br /> Lab Run#: 8162 Instrument: 3400-5 Analyzed. August 11, 1997 <br /> Spiked <br /> Sample Spike Amt Amt Found Spike Recov % <br /> Amount MS MSD MS MSD MS MSD Control % RPD <br /> Analyte (ucx/L) (uCi/L) (ucr/L) M (%) Limits RPD Lim <br /> BENZENE 37 100 100 135 135 98 0 98 0 65-135 0 20 <br /> TOLUENE 4 2 100 100 102 105 97 8 101 65-135 3 .22 20 <br /> ETHYL BENZENE 14 100 100 116 119 102 105 65-135 2 90 20 <br /> LENES 28 300 300 321 332 97 7 101 65-135 3 32 20 <br /> Sample Spiked 143186 <br /> Submission # 9708111 <br /> Client Sample ID: MW-1 <br /> 1 <br /> 1 <br /> 1 <br /> MS Smpl # 143389 1220 Quarry Lane • Pleasanton, California 94566-4756 <br /> MSD Smpl # 143390 (510) 484-1919 • Facsimile (510) 484-1096 QCMSPK1229 ALEXANCM 19 Aug 97 <br /> Federal ID #68-0140157 <br />