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0 <br /> Report Number 36056 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 12/8/2003 <br /> Protect Name 7-Eleven Store#14117 <br /> Protect Number 77EL 14117 03 <br /> Duplicate Spiked <br /> Duplicate Spiked Spiked Sample Relative <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 Sample Value Level Level Value Value Units Method Analyzed Recov Recov Diff Limit Limit <br /> Benzene 36096-03 <0 50 400 400 409 396 ug/L EPA 82606 1215103 102 991 3 08 70-130 25 <br /> Toluene 36096-03 <0 50 400 400 420 40 6 ug/L EPA 82606 1215103 105 102 329 70-130 25 <br /> Tert-Butanol 36096-03 <5 0 200 200 205 208 ug/L EPA 82606 1215/03 102 104 147 70-130 25 <br /> Methyl-t-Butyl Ether 36096-03 <0 50 400 400 42 8 420 ug/L EPA 82606 1215103 107 105 188 70-130 25 <br /> Benzene 36090-04 <0 50 400 400 41 1 39 9 ug/L EPA 8260B 12/6103 103 998 2 84 70-130 25 <br /> Toluene 36090-04 <0 50 400 400 398 38 8 ug/L EPA 8260B 1216103 995 969 260 70-130 25 <br /> Tert-Butanol 36090-04 <5 0 200 200 203 203 ug/L EPA 82606 1216103 102 102 0 198 70-130 25 <br /> Methyl-t-Butyl Ether36090-04 29 400 400 713 707 ug/L EPA 82606 1216103 105 103 142 70-130 25 <br /> Benzene 36064-01 <0 50 400 400 422 409 ug1L EPA 8260B 1215103 106 102 325 70-130 25 <br /> Toluene 36064-01 <0 50 400 400 41 7 404 ug/L EPA 82606 1215103 104 101 3 02 70-130 25 <br /> Tert-Butanol 36064-01 <5 0 200 200 208 208 ug/L EPA 8260B 1215103 104 104 00433 70-130 25 <br /> M ethyl-t-B utyl Ether 36064-01 12 400 400 549 53 2 ug/L EPA 8260B 92/5/03 106 102 403 70-130 25 <br /> Benzene 36112-01 <0 50 400 400 416 396 ug/L EPA 82606 1215103 104 991 473 70-130 25 <br /> Toluene 36112-01 <0 50 400 400 41 5 394 ug/L EPA 8260B 1215103 104 986 502 70-130 25 <br /> Tert-Butanol 36112-01 11 200 200 215 208 ug/L EPA 8260B 1215103 102 986 346 70-130 25 <br /> Methyl-t-Butyl Ether 36112-01 <0 50 400 400 41 5 405 ug/L EPA 8260B 1215103 104 101 256 70-130 25 <br /> Benzene 36124-08 <0 50 400 400 404 39 5 ug/L EPA 8260B 12/7/03 101 98 8 228 70-130 25 <br /> Toluene 36124-08 <0 50 400 400 403 39 2 ug/L EPA 8260B 1217/03 101 981 2 59 70-130 25 <br /> �-PJ 4aw <br /> Approved By R P Furry <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />