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Inc. t <br /> Environmental Testing Laboratory Since 1949 oratories <br /> Geologic Associates Project: Forward Landfill-Monthly Reported: 12/10/2009 15:29 <br /> 16885 W. Bernardo Drive Project Number: [none] <br /> San Diego,CA 92127 Project Manager: Bill Lopez <br /> Water Analysis (Metals) <br /> Quality Control Report - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample Type Sample ID Result Result Added Units RPD Recove RPD Recovery Lab Quals <br /> Nickel BSL0006 Duplicate 0915645-01 ND ND ug/L 20 <br /> Matrix Spike 0915645-01 ND 437.75 408.16 ug/L 107 75-125 <br /> Matrix Spike Duplicate 0915645-01 ND 438.47 408.16 ug/L 0.2 107 20 75-125 <br /> Silver BSL0006 Duplicate 0915645-01 ND ND ug/L 20 <br /> Matrix Spike 0915645-01 ND 103.26 102.04 ug/L 101 75-125 <br /> Matrix Spike Duplicate 0915645-01 ND 102.24 102.04 ug/L 1.0 100 20 75-125 <br /> Vanadium BSL0006 Duplicate 0915645-01 20.892 21.330 ug/L 2.1 20 <br /> Matrix Spike 0915645-01 20.892 241.29 204.08 ug/L 108 75-125 <br /> Matrix Spike Duplicate 0915645-01 20.892 239.40 204.08 ug/L 0.9 107 20 75-125 <br /> Zinc BSL0006 Duplicate 0915645-01 576.11 584.29 ug/L 1.4 20 <br /> Matrix Spike 0915645-01 576.11 1159.6 510.20 ug/L 114 75-125 <br /> Matrix Spike Duplicate 0915645-01 576.11 1159.9 510.20 ug/L 0.1 114 20 75-125 <br /> Mercury BSL0031 Duplicate 0915611-01 ND ND ug/L 20 <br /> Matrix Spike 0915611-01 ND 0.97250 1.0000 ug/L 97.2 70-130 <br /> Matrix Spike Duplicate 0915611-01 ND 0.99000 1.0000 ug/L 1.8 99.0 20 70-130 <br /> Antimony BSL0034 Duplicate 0915245-03 0.39600 0.26800 ug/L 38.6 20 J,A02 <br /> Matrix Spike 0915245-03 0.39600 42.743 40.816 ug/L 104 70-130 <br /> Matrix Spike Duplicate 0915245-03 0.39600 42.166 40.816 ug/L 1.4 102 20 70-130 <br /> Arsenic BSL0034 Duplicate 0915245-03 9.2980 9.2260 ug/L 0.8 20 <br /> Matrix Spike 0915245-03 9.2980 121.09 102.04 ug/L 110 70-130 <br /> Matrix Spike Duplicate 0915245-03 9.2980 120.67 102.04 ug/L 0.4 109 20 70-130 <br /> Lead BSL0034 Duplicate 0915245-03 0.066000 ND ug/L 20 <br /> Matrix Spike 0915245-03 0.066000 98.455 102.04 ug/L 96.4 70-130 <br /> Matrix Spike Duplicate 0915245-03 0.066000 97.663 102.04 ug/L 0.8 95.6 20 70-130 <br /> Selenium BSL0034 Duplicate 0915245-03 ND ND ug/L 20 <br /> Matrix Spike 0915245-03 ND 116.61 102.04 ug/L 114 70-130 <br /> Matrix Spike Duplicate 0915245-03 ND 118.04 102.04 ug/L 1.2 116 20 70-130 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must he reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. BC Laboratories,Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 17 of 27 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />