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i • i <br /> Report Number 32275 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 3126103 <br /> Project Name 7-Eleven Store #14117 <br /> Project Number 77EL 14117 03.0410 <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 Anal zed Recov Recov Diff Lima Limit <br /> Benzene 32275-06 <0 50 391 395 38 7 38 9 ug/L EPA 8260B 3122103 99 0 985 0 506 70-130 25 <br /> Toluene 32275-06 <0 50 391 395 379 38 2 ug/L EPA 8260B 3122103 968 966 0 258 70-130 25 <br /> Tert-Butanol 32275-06 <5 0 196 198 187 188 ug/L EPA 8260B 3122103 956 94 9 0 719 70-130 25 <br /> Methyl-t-Butyl Ether 32275-06 <0 50 391 395 383 387 ug/L EPA 82606 3122103 980 98 0 000 70-130 25 <br /> Benzene 32289-03 <0 50 400 402 38 0 373 ug/L EPA 8260B 3125103 949 92 8 226 70-130 25 <br /> Toluene 32289-03 <0 50 400 402 391 395 ug/L EPA 8260B 3125103 978 98 1 0 255 70-130 25 <br /> Tert-Butanol 32289-03 <5 0 200 201 209 201 ug/L EPA 82606 3/25103 104 999 4 39 70-130 25 <br /> Methyl-t-Butyl Ether 32289-03 140 400 402 178 188 ug/L EPA 8260B 3/25103 932 119 244 70-130 25 <br /> Benzene 32328-05 <0 50 400 400 41 0 402 ug/L EPA 8260B 3/22103 102 100 200 70-130 25 <br /> Toluene 32328-05 <0 50 400 400 388 380 ug/L EPA 8260B 3122103 969 95 0 1 98 70-130 25 <br /> Tert-Butanol 32328-05 9 5 200 200 210 213 ug/L EPA 82606 3122103 100 102 1 58 70-130 25 <br /> Methyl-t-Butyl Ether 32328-05 34 400 400 743 744 ug/L EPA 8260B 3122103 101 102 0 345 70-130 25 <br /> Benzene 32322-02 <0 50 400 400 416 409 ug/L EPA 8260B 3122/03 104 102 1 82 70-130 25 <br /> Toluene 32322-02 <0 50 400 400 41 5 408 ug/L EPA 8260B 3122103 104 102 1 70 70-130 25 <br /> Tert-Butanol 32322-02 10 200 200 226 220 ug/L EPA 8260B 3122103 108 105 2 84 70-130 25 <br /> Methyl-t-Butyl Ether 32322-02 0 56 400 400 424 418 ug/L EPA 82606 3122103 105 103 1 32 70-130 25 <br /> KIFF ANALYTICAL, LLC Approved By Jbel Kiff <br /> 2795 2nd 5t, Suite 300 Davis, CA 95616 530-297-4800 J <br />