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Page 49 of 56 <br /> alscience <br /> =nvironmental Quality Control - LCS/LCS Duplicate <br /> Aw aboratories, Inc. <br /> Parsons Date Received: N/A <br /> 2121 North California Blvd., Suite 500 Work Order No: 08-08-2353 <br /> Walnut Creek, CA 94596-7305 Preparation: EPA 3510C <br /> Method: EPA 8310 <br /> Project: Former Tracy MGP <br /> Date Date LCS/LCSD Batch <br /> Quality Control Sample ID Matrix Instrument Prepared Analyzed Number <br /> 099-07-003-1,180 Aqueous HPLC 5 08/28/08 09/03/08 0808281-09 <br /> Parameter LCS%REC LCSD%REC %REC CL ME CL RPD RPD CL Qualifiers <br /> Naphthalene 118 115 40-160 20-180 3 0-20 <br /> Acenaphthylene 105 105 40-160 20-180 0 0-20 <br /> Acenaphthene 105 106 40-160 20-180 1 0-20 <br /> Fluorene 106 107 40-160 20-180 1 0-20 <br /> Phenanthrene 105 106 40-160 20-180 1 0-20 <br /> Anthracene 113 114 40-160 20-180 0 0-20 <br /> Fluoranthene 101 102 40-160 20-180 1 0-20 <br /> Pyrene 99 100 40-160 20-180 1 0-20 <br /> Benzo(a)Anthracene 110 111 40-160 20-180 1 0-20 <br /> Chrysene 113 114 40-160 20-180 1 0-20 <br /> Benzo(b)Fluoranthene 110 111 40-160 20-180 1 0-20 <br /> Benzo(k)Fluoranthene 112 113 40-160 20-180 1 0-20 <br /> Benzo(a)Pyrene 106 107 40-160 20-180 1 0-20 <br /> Dibenz(a,h)Anthracene 105 111 40-160 20-180 5 0-20 <br /> Benzo(g,h,i)Perylene 108 109 40-160 20-180 1 0-20 <br /> Indeno(1,2,3-c,d)Pyrene 105 106 40-160 20-180 1 0-20 <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 />