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Page 10 of 13 <br /> alscience o \ �oF <br /> -nvironmental Quality Control - LCS/LCS Duplicate �° <br /> AM aboratories, Inc. <br /> Q ne <br /> Parsons Date Received: N/A <br /> 2121 North California Blvd., Suite 500 Work Order No: 09-04-0752 <br /> Walnut Creek, CA 94596-7305 Preparation: EPA 3510C <br /> Method: EPA 8310 <br /> Project: Former Tracy MGP /444534.02000 <br /> Date Date LCS/LCSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 099-07-003-1,314 Aqueous HPLC 5 04/09/09 04/10/09 0904091-07 <br /> Parameter LCS%REC LCSD%REC %REC CL ME CL RPD RPD CL Qualifiers <br /> Naphthalene 75 75 26-170 2-194 0 0-21 <br /> Acenaphthylene 88 91 49-133 35-147 3 0-23 <br /> Acenaphthene 85 86 49-133 35-147 1 0-20 <br /> Fluorene 88 88 56-134 43-147 0 0-17 <br /> Phenanthrene 88 88 59-131 47-143 0 0-18 <br /> Anthracene 96 96 58-136 45-149 0 0-19 <br /> Fluoranthene 87 87 60-132 48-144 0 0-19 <br /> Pyrene 87 87 65-125 55-135 0 0-21 <br /> Benzo(a)Anthracene 92 92 65-137 53-149 0 0-21 <br /> Chrysene 94 94 65-143 52-156 0 0-21 <br /> Benzo(b)Fluoranthene 92 92 67-139 55-151 0 0-22 <br /> Benzo(k)Fluoranthene 95 95 68-140 56-152 0 0-22 <br /> Benzo(a)Pyrene 94 94 62-134 50-146 0 0-22 <br /> Dibenz(a,h)Anthracene 95 95 66-138 54-150 0 0-28 <br /> Benzo(g,h,i)Perylene 93 94 66-138 54-150 0 0-21 <br /> Indeno(1,2,3-c,d)Pyrene 88 89 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 />