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® 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> McCambbell Analytical Inc <br /> Toll Free Telephone:(877)252-9262/Fez:(925)252-9269 <br /> "When Quality Counts" http://w .mccampbeH.com/E-ma0:main@=campbell.com <br /> Quality Control Report <br /> i Client: Neil O.Anderson&Associates WorkOrder: 1404677 <br /> Date Prepared: 4/16/14 BatchlD: 89428 <br /> Date Analyzed: 4/17/14 Extraction Method: SW3050B <br /> Instrument: ICP-MS2 Analytical Method: SW6020 <br /> Matrix: Soil Unit: mg/Kg <br /> Project: #LZV 140001;NOA Drywall Sample ID: MB/LCS-89428 <br /> i1404668-002AMS/MSD <br /> QC Summary Rcport for SW6020 <br /> i Analyte MB LCS RL SPK MB LCS LCS <br /> Result Result Val SS%REC %REC Limits <br /> Antimony ND 55.6 _ 0.50 50 - 111 75-125 <br /> Arsenic ND 57.00.50 50 - 114 75-125 <br /> Barium ND 5595.0 500 112 75-125 <br /> Beryllium ND 55 _.8 0.50 50 - 112 75-125 <br /> Cadmium ND-56 6 50 = 113 75-125 <br /> Chromium ND 56.5 0.50 50 113 75-125 <br /> Cobalt ND 56.0 _ 0.50 50 - 112 75-125 <br /> Copper —N-D-56.0 0.50 50 - 112 75-125 <br /> Lead ND 56.5 0.50 50 _ 113 75-125 <br /> Mercury ND 1.23 0.050 1.25 98:5 75-125 <br /> Molybdenum ND 53.3 0.50 50 - 107 75-125 <br /> Nickel ND 56.7 0.50 50 - 113 75-125 <br /> Selenium ND 58.1 0.50 50 116 75-125 <br /> Silver ND 55.3 0.50 50 - 111 75-125 <br /> Thallium ND 55.7 0.50 50 - 111 75-125 <br /> Vanadium ND 55.0 0.50 50 _ 110 75-125 <br /> Zinc NO 580 5.0 500 116 75-125 <br /> Surrogate Recovery <br /> Tb 350.917 533 558 500 107 112 70-130 <br /> i <br /> i <br /> i <br /> i <br /> ' (Cont.) <br /> CDPH ELAP 1644♦NELAP' 4033ORELAP - <br /> QA/QC Officer <br /> Page 5 of 10 <br />