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t <br /> f <br /> Report Number 30533 E <br /> QC Report: Matrix Spike/Matrix Spike Duplicate Date 12/27/2002 + <br /> i <br /> P� <br /> Project Name 420 W. Kettleman Larne, { <br /> Project Number 021219-JB1 <br /> Duplicate Spiked <br /> R Duplicate Spiked Spiked Sample Relative <br /> SIP, <br /> Spike Spiked Spiked ' Sample Sample Relative Percent Percent <br /> Spiked Sample Spike Dup Sample Sample, Analysis Date Percent Percent Percent Recov Diff <br /> Parameter Sam le Value Level Level Value Value Units Method Analyzed Recov Recov Diff Limit Limit <br /> Benzene 30533-01 <0 50 400 400 407 402 r ug/L EPA 8260B 12/23/02 102 100 1 38 70-130 25 <br /> Toluene 30533-01 <0 50 40 0 400 352 33 6 ug/L EPA 8260B 12/23/02 881' 841 4 64 70-130 25 <br /> Tert-Butanol 30533-01 <5 0 200 200 213 205 ug/L EPA 8260B 12/23/02 106 102 3 88 70-130 25 <br /> Methyl-t-Butyl Ether30533-01_ <0 50 40 0 400 402 407 ug/L EPA 8260B 17/23/02 100 102 1 26 - 70-130 25 <br /> Benzene 30512-01 110 400 400 159 156 ug/L EPA 8260B 12/23/02 112 103 7 96 70-130 25 <br /> Toluene 30512-01 051 40 0 400 396 39 6 ug/L EPA 82608 12/23/02 978 978 00767 70-130 25 <br /> Tert-Butanol 30512-01 140 200 200 343 347 ug/L EPA 8260B 12/23/02 101 104 219 70-130 25 <br /> Methyl-t-Butyl Ether 30512-01 26 400 400 697 689 ug/L EPA 8260B 12/23/02 108 106 181 70-130 25 i <br /> I <br /> E <br /> E <br /> I 1 <br /> ' I i <br /> } <br /> f r E <br /> 1 <br /> i <br /> 7 Approved By J I Kiff <br /> • ' �i KIFF AN ICAL, LLC -• <br /> E 2795 2nd St, Suite 300 avis, CA 95616 530-297-4800 _ <br />