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A4ED-TOX <br /> ASSOCIATES. INC. <br /> PAGE 13 OF 13 <br /> MATRIX: SOIL MED-TOX JOB NO: 9111040 <br /> CLIENT PROJ. ID: 190892.2 <br /> MATRIX SPIKE RECOVERY SUMMARY <br /> UC CONTROL LIMITS <br /> OBSERVED RECOVERIES <br /> INST./ SAMPLE SAMPLE SPIKE (mg/kg) REC. X RPD <br /> COMPOUND METHOD SPIKED RESULT ADDED MS MSD X REC. RPD LIMIT LIMIT <br /> As, Arsenic V22/7060 9111040-04A 10.8 20 32.0 33.7 110.2 5.2 63.9-125.0 12.6 <br /> Ba, Barium ICP/6010 9111040-04A 129 400 502 496 92.5 1.13 69.0-106.1 5.0 <br /> Cd, Cadmium ICP/6010 9111040-04A NO 20 16.22 16.09 82.8 0.80 66.3- 90.7 5.0 <br /> Cr, Chromium ICP/6010 9111040-04A 40.5 100 124.5 123.6 83.5 0.77 49.3-110.1 5.0 <br /> Cu, Copper ICP/6010 9111040-04A 26.7 100 121.2 120.1 94.0 0.92 74.6-102.5 5.0 <br /> Hg, Mercury Hg/7470 9111040.08A NO 1.0 1.002 1.002 100.2 0.04 95.2-104.6 5.0 <br /> Ni, Nickel ICP/6010 9111040-04A 33.7 100 117.7 117.0 83.6 0.56 50.7-104.2 5.0 <br /> Pb, Lead V12/7420 9111040-01A 8.3 20 27.5 27.3 95.1 0.77 80-120 15 <br /> Se, Selenium V22/7740 9111040-04A NO 40 40.3 41.2 101.9 2.2 48.4-.132.6 20.1 <br /> Zn, Zinc ICP/6010 9111040-04A 38.4 100 121.9 121.1 83.1 0.72 46.7- 98.6 5.0 <br /> ND = Not Detected <br />