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Page 15 of 25 <br />ti °R e u rof i ns Quality Control - Spike/Spike Duplicate <br />Calscience <br />Haz Mat Trans, Inc. Date Received: 07/18/14 <br />230 E. Dumas Work Order: 14-07-1269 <br />San Bernardino, CA 92408-2226 Preparation: EPA 7470A Filt. <br />Method: EPA 7470A <br />Project: UNIFIED GROCERS - TRUCKWASH Page 2 of 3 <br />Quality Control Sample ID <br />Type <br />Matrix <br />Instrument <br />Date Prepared <br />Date Analyzed MS/MSD Batch Number <br />14-07-1332-2 <br />Sample <br />Aqueous <br />Mercury 04 <br />07/24/14 <br />07/24/14 14:57 140724503 <br />14-07-1332-2 <br />Matrix Spike <br />Aqueous <br />Mercury 04 <br />07/24/14 <br />07/24114 14:59 140724503 <br />14-07-1332-2 <br />Matrix Spike Duplicate <br />Aqueous <br />Mercury 04 <br />07/24/14 <br />07/24/14 15:01 140724503 <br />Parameter Sample Spike MS MS MSD MSD %Rec. CL RPD RPD CL Qualifiers <br />Conc. Added Conc. %Rec. Conc. %Rec. <br />Mercury ND 0.01000 0.006999 70 0.007027 70 66-126 0 0-20 <br />SEP 19 2014 <br />ENVIRONMENTAL HEALTH <br />DEPARTMENT <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 />