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Page 19 of 28 <br /> 1 aiscience nvironmental Quality Control - Spike/Spike Duplicate <br /> aboratories, Inc. <br /> Leidos Date Received: 03/29/14 <br /> 1000 Broadway, Suite 675 Work Order: 14-03-2138 <br /> ' Oakland, CA 94607-4099 Preparation: EPA 3510C <br /> Method: EPA 8270C SIM NWPAH <br /> Project:Alden Park Page 2 of 2 <br /> ' Quality Control Sample ID Type Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number <br /> MW-4 Sample Aqueous GUMS EEE 04/01/14 04/04/14 13:40 140401517 <br /> ' MW-4 Matrix Spike Aqueous GC/MS EEE 04/01/14 04/04/14 14:01 140401517 <br /> MW-4 Matrix Spike Duplicate Aqueous GUMS EEE 04/01/14 04/04/14 14:22 140401517 <br /> Parameter Sample S ike MS MS MSD MSD %Rec.CL RPD RPD CL Qualifiers <br /> Conc. Added Conc. ° Rec. Conc. ° Rec. <br /> Naphthalene ND 1.000 0.8269 83 0.8842 88 21-133 7 0-25 <br /> 2-Methylnaphthalene ND 1.000 0.7287 73 0.7888 79 21-140 8 0-25 <br /> 1-Methylnaphthalene ND 1.000 0.7403 74 0.8580 86 20-140 15 0-25 <br /> ' Acenaphthylene ND 1.000 0.7004 70 0.7552 76 33-145 8 0-25 <br /> Acenaphthene ND 1.000 0.7761 78 0.8291 83 49-121 7 0-25 <br /> Fluorene ND 1.000 0.8281 83 0.8741 87 59-121 5 0-25 <br /> ' Phenanthrene ND 1.000 0.7530 75 0.8002 80 54-120 6 0-25 <br /> Anthracene ND 1.000 0.8644 86 0.8682 87 27-133 0 0-25 <br /> Fluoranthene ND 1.000 0.7976 80 0.8126 81 26-137 2 0-25 <br /> Pyrene ND 1.000 0.8288 83 0.8567 86 45-129 3 0-25 <br /> Benzo(a)Anthracene ND 1.000 0.7769 78 0.8222 82 33-143 6 0-25 o <br /> Chrysene ND 1.000 0.8167 82 0.8444 84 17-168 3 0-25 0 <br /> Benzo(k)Fluoranthene ND 1.000 0.8581 86 0.9640 96 24-159 12 0-25 <br /> ' Benzo(b)Fluoranthene ND 1.000 0.8590 86 0.9709 97 24-159 12 0-25 <br /> Benzo(a)Pyrene ND 1.000 0.7216 72 0.7907 79 17-163 9 0-25 <br /> Indeno(1,2,3-c,d)Pyrene ND 1.000 0.6324 63 0.7478 75 0-171 17 0-25 <br /> ' Dibenz(a,h)Anthracene ND 1.000 0.8143 81 0.8978 90 0-219 10 0-25 <br /> Benzo(g,h,i)Perylene ND 1.000 0.8390 84 0.9384 94 0-227 11 0-25 <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 />