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a1Certificate of Analysis <br /> Geocon Consultants,Inc. Project Number: LINDEN UST,S9800-01-04 <br /> 3160 Gold Valley Drive,Suite 800 Report To: John Juhrend <br /> Rancho Cordova,CA 95742 Reported: 11/26/2013 <br /> Title 22 Metals by ICP-AES EPA 6010B-Quality Control(cont'd) <br /> Result PQL Spike Source %Rec RPD <br /> Analyte (mg/kg) (mg/kg) Level Result %Rec Limits RPD Limit Notes <br /> Batch B3K0455-EPA 3050B(continued) <br /> Duplicate(B3K0455-DUPI)-Continued Source: 1303643-01 Prepared:11/22/2013 Analyzed:11/22/2013 <br /> Copper 24.1639 2.0 24.0646 NR 0.412 20 <br /> Lead 5.16766 1.0 5.35888 NR 3.63 20 <br /> Molybdenum 0.330044 1.0 0.342569 NR 3.72 20 <br /> Nickel 25.0814 1.0 25.2969 NR 0.856 20 <br /> Selenium ND 1.0 ND NR 20 <br /> Silver ND 1.0 ND NR 20 <br /> Thallium ND 1.0 ND NR 20 <br /> Vanadium 46.2956 1.0 43.8943 NR 5.33 20 <br /> Zinc 30.9613 1.0 30.3374 NR 2.04 20 <br /> Matrix Spike(83K0455-MSI) Source:1303643-01 Prepared:11/22/2013 Analyzed: 11/22/2013 <br /> Antimony 80.6660 2.0 125.000 ND 64.5 21-109 <br /> Arsenic 94.2558 1.0 125.000 2.53435 73.4 55-102 <br /> Barium 220.859 1.0 125.000 126.856 75.2 40-130 <br /> Beryllium 97.2844 1.0 125.000 0.451027 77.5 60-104 <br /> Cadmium 92.6974 1.0 125.000 ND 74.2 52-100 <br /> Chromium 136.420 1.0 125.000 37.5892 79.1 53-113 <br /> Cobalt 105.020 1.0 125.000 11.7380 74.6 53-104 <br /> Copper 125.581 2.0 125.000 24.0646 81.2 51-122 <br /> Lead 96.7722 1.0 125.000 5.35888 73.1 51-106 <br /> Molybdenum 93.3905 1.0 125.000 0.342569 74.4 55-103 <br /> Nickel 117.651 1.0 125.000 25.2969 73.9 48-112 <br /> Selenium 86.8732 1.0 125.000 ND 69.5 53-104 <br /> Silver 97.8778 1.0 125.000 ND 78.3 61-109 <br /> Thallium 89.6946 1.0 125.000 ND 71.8 44-103 <br /> Vanadium 136.089 1.0 125.000 43.8943 73.8 55-115 <br /> Zinc 122.810 1.0 125.000 30.3374 74.0 24-130 <br /> Matrix Spike Dup(B3K0455-MSD1) Source:1303643-01 Prepared:11/22/2013 Analyzed:11/22/2013 <br /> Antimony 85.0266 2.0 125.000 ND 68.0 21-109 5.26 20 <br /> Arsenic 95.7681 1.0 125.000 2.53435 74.6 55-102 1.59 20 <br /> Barium 222.613 1.0 125.000 126.856 76.6 40-130 0.791 20 <br /> Beryllium 98.9484 1.0 125.000 0.451027 78.8 60-104 1.70 20 <br /> Cadmium 95.2359 1.0 125.000 ND 76.2 52-100 2.70 20 <br /> Chromium 134.104 1.0 125.000 37.5892 77.2 53-113 1.71 20 <br /> Cobalt 107.689 1.0 125.000 11.7380 76.8 53-104 2.51 20 <br /> Copper 125.044 2.0 125.000 24.0646 80.8 51-122 0.428 20 <br /> Lead 98.8619 1.0 125.000 5.35888 74.8 51-106 2.14 20 <br /> Molybdenum 96.9238 1.0 125.000 0.342569 77.3 55-103 3.71 20 <br /> Nickel 120.041 1.0 125.000 25.2969 75.8 48-112 2.01 20 <br /> Selenium 89.2460 1.0 125.000 ND 71.4 53-104 2.69 20 <br /> Silver 99.0477 1.0 125.000 ND 79.2 61-109 1.19 20 <br /> Thallium 92.1715 1.0 125.000 ND 73.7 44-103 2.72 20 <br /> Vanadium 132.237 1.0 125.000 43.8943 70.7 55-115 2.87 20 <br /> Zinc 124.201 1.0 125.000 30.3374 75.1 24-130 1.13 20 <br /> 3275 Walnut Avenue,Signal Hill, CA 90755 •Tel:562-989-4045 0 Fax:562-989-4040 0 www.atlglobal.com Page 17 of 30 <br />