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u <br /> 1 <br /> Certificate of Analysis <br /> Geocon Consultants,Inc. Project Number: LINDEN UST,59800-01-04 <br /> 3160 Gold Valley Drive,Suite 800 ReportTo: John Juhrend <br /> Rancho Cordova,CA 95742 Reported: 11/26/2013 <br /> QUALITY CONTROL SECTION <br /> Title 22 Metals by ICP-AES EPA 6010B-Quality Control <br /> Result PQL Spike Source %Rec RPD <br /> Analyte (mg/kg) (mg/kg) Level Result %Rec Limits RPD Limit Notes <br /> Batch B31<0455-EPA 3050B <br /> Blank(63K0455-BLK1) Prepared: 11/22/2013 Analyzed: 11/22/2013 <br /> Antimony ND 2.0 NR <br /> Arsenic ND 1.0 NR <br /> Barium ND 1.0 NR <br /> Beryllium ND 1.0 NR <br /> Cadmium ND 1.0 NR <br /> Chromium ND 1.0 NR <br /> Cobalt ND 1.0 NR <br /> Copper ND 2.0 NR <br /> Lead ND 1.0 NR <br /> Molybdenum ND 1.0 NR <br /> Nickel ND 1.0 NR <br /> Selenium ND 1.0 NR <br /> Silver ND 1.0 NR <br /> Thallium ND 1.0 NR <br /> Vanadium ND 1.0 NR <br /> Zinc ND 1.0 NR <br /> LCS(B3K0455-BSI) Prepared:11/22/2013 Analyzed: 11/22/2013 <br /> Antimony 45.6724 2.0 50.0000 91.3 SO-120 <br /> Arsenic 45.7860 1.0 50.0000 91.6 80-120 <br /> Barium 47.0346 1.0 50.0000 94.1 80-120 <br /> Beryllium 48.3676 1.0 50.0000 96.7 80-120 <br /> Cadmium 47.1837 1.0 50.0000 94.4 80-120 <br /> Chromium 48.6692 1.0 50.0000 97.3 80-120 <br /> Cobalt 47.6134 1.0 50.0000 95.2 80-120 <br /> Copper 48.1144 2.0 50.0000 96.2 80-120 <br /> Lead 46.5148 1.0 50.0000 93.0 80-120 <br /> Molybdenum 49.6683 1.0 50.0000 99.3 80-120 <br /> Nickel 47.0024 1.0 50.0000 94.0 80-120 <br /> Selenium 42.3976 1.0 50.0000 84.8 80-120 <br /> Silver 44.6168 1.0 50.0000 89.2 80-120 <br /> Thallium 47.2733 1.0 50.0000 94.5 80-120 <br /> Vanadium 47.2681 1.0 50.0000 94.5 80-120 <br /> Zinc 49.3078 1.0 50.0000 98.6 80-120 <br /> Duplicate(B3K0455-DUPI) Source:1303643-01 Prepared: 11/22/2013 Analyzed: 11/22/2013 <br /> Antimony ND 2.0 ND NR 20 <br /> Arsenic 2.63221 1.0 2.53435 NR 3.79 20 <br /> Barium 127.327 1.0 126.856 NR 0.371 20 <br /> Beryllium 0.473780 1.0 0.451027 NR 4.92 20 <br /> Cadmium ND 1.0 ND NR 20 <br /> Chromium 43.0283 1.0 37.5892 NR 13.5 20 <br /> Cobalt 9.19234 1.0 11.7380 NR 24.3 20 R <br /> 3275 Walnut Avenue,Signal Hill,CA 90755 0 Tel.562-989-4045 a Fax.562-989-4040 1 www.atlglobaLcom Page 16 of 30 <br />