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tiff eurofins <br />Calscience <br />Quality Control - PDS <br />Page 14 of 23 <br />Cardno ERI Date Received: 02/28/15 <br />601 North McDowell Blvd. Work Order: 15-02-2159 <br />Petaluma, CA 94954-2312 Preparation: EPA 3010A Total <br />Method: EPA 6010B <br />Project: ExxonMobil 99CAS/022789C Page 1 of 1 <br />Quality Control Sample ID Type <br />Matrix Instrument Date Prepared Date Analyzed PDS/PDSD Batc <br />Number <br />15-024,0, 6=F sanlrin tCP MO 0102115 00:00 43 T'15 14:15 1503025A2 <br />.15 - 112-1 OU -2 Pf7S Aqueous ICf'73R0 03;0211500:0+1 01103'1514:1 1:i0302:SA2 <br />Parameter <br />Sample Conc. <br />Spike Added <br />PDS Conc. <br />PDS %Rec. <br />° Rec. CL Qualifie <br />Arsenic <br />ND <br />0.5000 <br />0.5029 <br />101 <br />75-125 <br />Cadmium <br />ND <br />0.5000 <br />0.5010 <br />100 <br />75-125 <br />Lead <br />ND <br />0.5000 <br />0.4915 <br />98 <br />75-125 <br />Selenium <br />ND <br />0.5000 <br />0.5500 <br />110 <br />75-125 <br />RPD: Relative Percent Difference. CL: Control Limits <br />7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • FAX: (714) 894-7501 <br />