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Page 15 of 19 <br /> alscience o �o <br /> =nvironmental Quality Control - LCS/LCS Duplicate Q°ne <br /> AM aboratories, Inc. <br /> f <br /> Parsons Date Received: N/A <br /> 2121 North California Blvd., Suite 500 Work Order No: 09-04-1683 <br /> Walnut Creek, CA 94596-7305 Preparation: EPA 3510C <br /> Method: EPA 8310 <br /> Project: PG&E TRACY MGP SITE <br /> Date Date LCS/LCSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 099-07-003-1,321 Aqueous HPLC 5 04/22/09 04/23/09 0904221-11 <br /> Parameter LCS%REC LCSD%REC %REC CL ME CL RPD RPD CL Qualifiers <br /> Naphthalene 79 79 26-170 2-194 0 0-21 <br /> Acenaphthylene 82 82 49-133 35-147 0 0-23 <br /> Acenaphthene 57 57 49-133 35-147 1 0-20 <br /> Fluorene 80 81 56-134 43-147 1 0-17 <br /> Phenanthrene 83 84 59-131 47-143 1 0-18 <br /> Anthracene 89 90 58-136 45-149 1 0-19 <br /> Fluoranthene 81 81 60-132 48-144 1 0-19 <br /> Pyrene 83 83 65-125 55-135 0 0-21 <br /> Benzo(a)Anthracene 87 88 65-137 53-149 1 0-21 <br /> Chrysene 90 90 65-143 52-156 1 0-21 <br /> Benzo(b)Fluoranthene 87 87 67-139 55-151 1 0-22 <br /> Benzo(k)Fluoranthene 89 90 68-140 56-152 1 0-22 <br /> Benzo(a)Pyrene 74 74 62-134 50-146 0 0-22 <br /> Dibenz(a,h)Anthracene 88 89 66-138 54-150 1 0-28 <br /> Benzo(g,h,i)Perylene 85 85 66-138 54-150 0 0-21 <br /> Indeno(1,2,3-c,d)Pyrene 84 84 63-135 51-147 1 0-22 <br /> Total number of LCS compounds: 16 <br /> Total number of ME compounds : 0 <br /> Total number of ME compounds allowed: 1 <br /> LCS ME CL validation result: Pass <br /> RPD-Relative Percent Difference, CL-Control Limit <br /> 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 <br />