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l ry t, A P a A ! s E p °' REPORT 0 LARORRTORY ��A�YSlS <br /> FIN <br /> rNf dSSUA IXCF Qi Qpolrf l' <br /> As. Jacqueline Doub QUALITY CONTROL DATA October 31, 1991 <br /> IF Page S PACE Project Number: 411018509 <br /> Client Reference: Exxon 7-0137 <br /> Lead (EPA Method 7421, Graphite Furnace) <br /> Batch: 70 07233 <br /> Samples: 70 0104823, 70 0104831, 70 0104840 <br /> METHOD BLANK AND SAMPLE DUPLICATE: <br /> Duplicate <br /> `:• Method of <br /> Parameter Units MDL Blank 70 0106648 70 0106648 RPD <br /> Lea (M Method 7421, Graphite Furnace mg/L 0.(103 ND 0.007 0.006 <br /> 15% <br /> f <br /> SPIKE AND SPIKE DUPLICATE: <br /> Spike <br /> Spike Dupi <br /> Parameter <br /> Units MDL 70 0106648 Spike Recv Recv RFD <br /> Lea (EPA Method 7421, Graphite Furnace mg/L 0.003 0.007 0.020 86%. 12- <br /> ABORATORY CONTROL SAMPLE: <br /> Reference <br /> Parameter Units MDL Value Recv <br /> Lead (WA Method 7421, Graphite Furnace mg/L 0-003 0.020 TOUR <br /> MDL Method Detection Limit ' <br /> ^; RPD Relative Percent Difference <br /> i <br /> 3 <br /> j <br /> !I Digital Drive 011icas Serving:Mimeap04s,Mirmasau Charlotte.Harsh Cardin An Equal Qpponuruty Employer <br /> Novam CA 94949 Tampa.Florida Ashadle.Nath Carolina <br /> TA'a 415•BE3•Sltlq Iowe City.law$ New York,New York <br /> FAX:415-8812673 $m Frandsca.California Piltsbn4,Pennsylvania <br /> Kansas City,Alissoua Denver.Colorado <br /> Las Anaeles.California <br />