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+SunSart25712 Commercentre Drive <br /> Laboratories, Inc. Lake Forest,California 92630 <br /> ' IOING QIIALRY ANALYTIGL Suvices NATIONWIDE 949.297.5020 Phone <br /> 949.297.5027 Fax <br /> ' PSI--Oakland Project: Farmington-Tank Pull <br /> 4703 Tidewater Ave Ste B Project Number: 575-352-1 Reported: <br /> Oakland CA,94601 Project Manager: Frank Poss 11/04/11 16:55 <br /> ' Metals by EPA 6010B - Quality Control <br /> SunStar Laboratories, Inc. <br /> ' Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1102834-EPA 3051 <br /> Matrix Spike Dup(1102834-MSDI) Source:T111593-IOBEl Prepared&Analyzed: 10/31/11 <br /> Arsenic 92.0 5.0 mg/kg 100 2.74 89.2 75-125 0.951 20 <br /> Barium 262 1.0 100 458 NR 75-125 6.59 20 QM-05 <br /> Cadmium 90.1 2.0 100 0.449 89.7 75-125 1.03 20 <br /> Chromium 106 2.0 „ 100 14.0 91.9 75-125 1.21 20 <br /> Lead 98.7 3.0 100 7.45 91.3 75-125 2.70 20 <br /> Batch 1103118-EPA 3051 <br /> Blank(110311_8_-BLK1) _ Prepared: 10/31/11 Analyzed: 11/01/11 <br /> Antimony ND 3.0 mg/kg <br /> ' Silver ND 2.0 11 <br /> Arsenic ND 5.0 <br /> Barium ND 1.0 " <br /> Beryllium ND 1.0 " <br /> ' Cadmium ND 2.0 11 <br /> Chromium ND 2.0 <br /> Cobalt ND 2.0 " <br /> ' Copper ND 1.0 "Lead ND 3.0 <br /> Molybdenum ND 1.0 <br /> Nickel ND 2.0 " <br /> ' Selenium ND 5.0 <br /> Thallium ND 2.0 <br /> Vanadium ND 5.0 " <br /> Zinc ND 1.0 " <br /> ' LCS(1103118-BSI) Prepared: 10/31/11 Analyzed: 11/01/11 <br /> Arsenic 96.4 5.0 mg/kg 100 96.4 75-125 <br /> Barium 94.6 1.0 100 94.6 75-125 <br /> ' Cadmium 93.6 2.0 11 100 93.6 75-125 <br /> Chromium 94.3 2.0 100 94.3 75-125 <br /> Lead 95.2 3.0 100 95.2 75-125 <br /> ' SunStar Laboratories,Inc. The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document. This analytical report must be reproduced in its entirety. <br /> ' Wendy Hsiao,Project Manager Page 29 of 36 <br />