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0 <br /> Report Number 30149 <br /> QC Report Matrix Spike/Matrix Spike Duplicate Date 1 2t 012002 <br /> Project Name 2575 Country Club Blvd <br /> Project Number 2440783 <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 30108-03 <0 50 399 400 397 407 ugA- EPA 8260B 12/8102 995 102 219 70-130 25 <br /> Toluene 30108-03 <0 50 399 400 377 390 ug/L EPA 8260B 1218102 945 97 4 305 70-130 25 <br /> Tert-Butanol 30108-03 <5 0 200 200 192 193 ug/L EPA 82608 12!8102 961 966 0 514 70-130 25 <br /> Methyl-t-Butyl Ether 30108-03 <0 50 399 400 41 0 41 3 ug/L EPA 82608 1218102 103 103 0 534 70-130 25 <br /> Benzene 30149-02 <0 50 400 400 395 387 ugA- EPA 82608 1216102 988 968 212 70-130 25 <br /> Toluene 30149-02 <0 50 400 400 384 37 7 ug/L EPA 8260B 1216102 961 94 2 208 70-130 25 <br /> Tert-Butanol 30149-02 4600 200 200 4700 4360 ug/L EPA 8260B 1216102 61 4 000 200 70-130 25 <br /> Methyl-t Butyl Ether 30149-02 4300 400 400 4080 3990 ug/L EPA 82608 1216102 000 000 000 70-130 25 <br /> Benzene 30071-01 <0 50 400 400 41 2 40 6 ugA- EPA 8260B 1216!02 103 102 1 22 70-130 25 <br /> Toluene 30071-01 <0 50 400 400 39 3 386 ug/L EPA 8260B 1216102 982 96 4 1 85 70-130 25 <br /> Tert-Butanol 30071-01 <5 0 200 200 190 193 ug/L EPA 82608 1216102 951 965 1 47 70-130 25 <br /> Methyl-t-Butyl Ether 30071-01 <0 50 400 400 389 396 ug/L EPA 8260E 1216102 97 4 989 1 58 70-130 25 <br /> Approved By J I Kiff <br /> KiFF ANALYTICAL, LLC <br /> 2795 2nd St, Suite 300 Davis, CA 95616 530-297-4800 <br />