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Page 23 of 29 <br />li e u rof I n s Quality Control - LCS/LCSD <br />Calscience <br />Haz Mat Trans, Inc. Date Received: 07/18/14 <br />230 E. Dumas Work Order: 14-07-1268 <br />San Bernardino, CA 92408-2226 Preparation: EPA 7470A Total <br />Method: EPA 7470A <br />Project: UNIFIED GROCERS - HOLDING TANK Page 3 of 5 <br />Quality Control Sample ID <br />Type <br />Matrix <br />Instrument <br />Date Prepared <br />Date Analyzed <br />LCS/LCSD Batch Number <br />099-04-008-7046 <br />LCS <br />Aqueous <br />Mercury 04 <br />07/24/14 <br />07/24/14 14:52 <br />140724L03 <br />099-04-008-7046 <br />LCSD <br />Aqueous <br />Mercury 04 <br />07/24/14 <br />07/24/14 14:55 <br />1407241_03 <br />Parameter Spike Added LCS Conc. LCS LCSD Conc. LCSD %Rec. CL RPD RPD CL Qualifiers <br />%Rec. %Rec. <br />Mercury 0.01000 0.01005 100 0.01016 102 85-121 1 0-10 <br />RECEIVED <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 />