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1 <br /> Cb Curtis &Tompkins. Ltd <br /> Batch QC Report <br /> Dissolved Metals Analytical Report <br /> Lab #: 253472 Location: DVI-Burn Pit <br /> Client: URS Corporation Prep: METHOD <br /> Project#: 17327022 Analysis: EPA 6010B <br /> Field ID: MW-2-BP Batch#: 208194 <br /> MSS Lab ID: 253472-001 Sampled: 02/18/14 <br /> Matrix: Filtrate Received: 02/18/14 <br /> Units: ug/L Prepared: 02/20/14 <br /> Diln Fac: 1.000 Analyzed: 02/20/14 <br /> e: MS Lab ID: QC728545 <br /> Analyte MSS Result Spiked Result %REC Limits <br /> Arsenic 16 .62 100.0 127.6 111 79-126 <br /> Barium 79.75 2,000 1, 959 94 74-120 <br /> Cadmium 0 .3893 50.00 52 .01 103 76-122 <br /> Chromium 1.959 200.0 196.6 97 76-120 <br /> Copper <1.566 250.0 237.0 95 74-122 <br /> Iron 389.0 1, 000 1, 340 95 66-127 <br /> Lead <0.8472 100.0 79.26 79 71-120 <br /> Magnesium 131, 300 20, 000 136, 900 >LR 28 NM 71-120 <br /> Manganese 7,454 50.00 7, 180 -547 NM 70-128 <br /> Molybdenum 15.55 400.0 400 .5 96 78-120 <br /> Nickel 4 .826 500.0 488 .9 97 73-120 <br /> Selenium 6.125 100.0 118 .7 113 71-127 <br /> Type: MSD Lab ID: QC728546 <br /> Analyte Spiked Result %REC Limits RPD Lim <br /> Arsenic 100.0 132.5 116 79-126 4 20 <br /> Barium 2, 000 2, 028 97 74-120 3 25 <br /> Cadmium 50.00 53.71 107 76-122 3 20 <br /> Chromium 200.0 201.5 100 76-120 2 20 <br /> Copper 250 .0 242.2 97 74-122 2 21 <br /> Iron 1, 000 1, 395 101 66-127 4 21 <br /> Lead 100 .0 82.08 82 71-120 3 20 <br /> Magnesium 20, 000 140, 900 >LR 48 NM 71-120 NC 20 <br /> Manganese 50 .00 7,446 -15 NM 70-128 4 20 <br /> Molybdenum 400 .0 417.1 100 78-120 4 20 <br /> Nickel 500.0 500.7 99 73-120 2 20 <br /> Selenium 100.0 126.3 120 71-127 6 35 <br /> 1 NC= Not Calculated <br /> NM= Not Meaningful: Sample concentration > 4X spike concentration <br /> �LR= Response exceeds instrument's linear range <br /> PD= Relative Percent Difference <br /> Page 1 of 1 23.1 <br />