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0 <br /> Report Number 40039 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 9/16/2004 <br /> Project Name BARNES TRUCKING <br /> Project Number ZB178C <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 39997-06 <0 50 388 38 7 396 398 ug/L EPA 8260B 9/13/04 102 103 0 879 70-130 25 <br /> Toluene 39997-06 <0 50 388 387 375 375 ug/L EPA 8260B 9/13/04 966 968 0 212 70-130 25 <br /> Tert-Butanol 39997-06 <5 0 194 193 190 192 ug/L EPA 8260B 9/13/04 98 0 994 141 70-130 25 <br /> Methyl-t-Butyl Ether 39997-06 <0 50 388 387 426 41 2 ug/L EPA 8260E 9/13104 110 106 2 96 70-130 25 <br /> Benzene 40039-01 38 400 400 714 682 ug/L EPA 8260B 9/14/04 836 754 103 70-130 25 <br /> Toluene 40039-01 70 400 400 101 101 ug/L EPA 8260B 9/14104 77 1 787 214 70-130 25 <br /> Tert-Butanol 40039-01 <5 0 200 200 200 204 ug/L EPA 82606 9/14104 998 102 208 70-130 25 <br /> Methyl-t-Butyl Ether40039-01 <0 50 400 400 363 358 ug/L EPA 8260B 9/14/04 907 895 128 70-130 25 <br /> Benzene 40039-06 47 400 400 870 81 0 ug/L EPA 82606 9/15/04 993 841 165 70-130 25 <br /> Toluene 40039-06 62 400 400 994 976 ug/L EPA 82606 9/15/04 94 6 901 4 92 70-130 25 <br /> Tert-Butanol 40039-06 <5 0 200 200 208 203 ug/L EPA 8260B 9/15/04 104 101 271 70-130 25 <br /> Methyl-t-Butyl Ether40039-06 <0 50 400 400 352 34 8 ug/L EPA 8260B 9/15/04 881 87 0 131 70-130 25 <br /> Benzene 40049-07 <0 50 400 400 396 373 ug/L EPA 8260B 9/15/04 991 93 3 597 70-130 25 <br /> Toluene 40049-07 <0 50 400 400 443 418 ug/L EPA 8260B 9/15/04 111 104 588 70-130 25 <br /> Tert-Butanol 40049-07 <50 200 200 203 200 ug/L EPA 82606 9/15/04 101 100 1 12 70-130 25 <br /> Methyl-t-Butyl Ether40049-07 <0 50 400 400 339 32 6 ug/L EPA 8260B 9/15/04 84 7 81 5 389 70-130 25 <br /> Approved By ,to iff <br /> KIFF ANALYTICAL, LLC <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />