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Lancaster <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605-2425-717-656-2300 Fax:717-656-2681•www.larcasterIabs.com <br /> Page 1 of 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 1036252 <br /> Reported: 05/14/07 at 11:13 AM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted. In these situations, to demonstrate precision and accuracy at <br /> a batch level, a LCS/LCSD was performed, unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control <br /> Blank Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL** LOO Units %REC %REC Limits RPD RPD Max <br /> Batch number: 071230014A Sample number(s) : 5043514-5043518 <br /> TPH-DRO (C10-C25) Water N.D. 29. 100. ug/l 78 57-118 <br /> Batch number: 07123WACO26 Sample number(s) : 5043514-5043518 <br /> Naphthalene N.D. 0.01 0.05 ug/l 95 68-120 <br /> Acenaphthylene N.D. 0.01 0.05 ug/l 108 69-121 <br /> Acenaphthene N.D. 0.01 0.05 ug/l 101 71-122 <br /> Fluorene N.D. 0.01 0.05 ug/l 101 71-124 <br /> Phenanthrene N.D. 0.01 0.05 ug/l 102 70-125 <br /> Anthracene N.D. 0.01 0.05 ug/l 103 64-126 <br /> Fluoranthene N.D. 0.01 0.05 ug/l 97 69-131 <br /> Pyrene N.D. 0.01 0.05 ug/l 103 69-130 <br /> Benzo(a)anthracene N.D. 0.01 0.05 ug/l 103 68-129 <br /> Chrysene N.D. 0.01 0.05 ug/l 104 69-128 <br /> Benzo(b)fluoranthene N.D. 0.01 0.05 ug/l 103 56-138 <br /> Benzo(k)fluoranthene N.D. 0.01 0.05 ug/l 95 66-137 <br /> Benzo(a)pyrene N.D. 0.01 0.05 ug/l 100 63-131 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 0.05 ug/l 107 71-140 <br /> Dibenz(a,h)anthracene N.D. 0.01 0.05 ug/l 86 55-142 <br /> Benzo(g,h,i)perylene N.D. 0.01 0.05 ug/l 105 68-136 <br /> Batch number: 071290035A Sample number(s) : 5043516-5043518 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 29. 100. ug/l 64 57-118 <br /> Sample Matrix Quality Control <br /> Unspiked (UNSPK) = the sample used in conjunction with the matrix spike <br /> Background (BKG) = the sample used in conjunction with the duplicate <br /> MS MSD MS/MSD RPD BKG DUP DUP Dup <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: 071230014A Sample number(s) : 5043514-5043518 UNSPK: 5043516 <br /> TPH-DRO (C10-C25) Water 83 71 59-128 8 20 <br /> Batch number: 07123WACO26 Sample number(s) : 5043514-5043518 UNSPK: 5043516 <br /> Naphthalene 102 105 35-165 4 30 <br /> Acenaphthylene 116 118 59-128 3 30 <br /> Acenaphthene 107 110 69-120 4 30 <br /> Fluorene 114 117 61-129 4 30 <br /> Phenanthrene 106 109 76-124 4 30 <br /> Anthracene 96 97 17-153 3 30 <br /> Fluoranthene 96 95 57-129 0 30 <br /> Pyrene 116 122 44-146 6 30 <br /> Benzo(a)anthracene 114 115 52-135 2 30 <br /> *-Outside of specification <br /> **-This limit was used in the evaluation of the final result for the blank <br /> (1) The result for one or both determinations was less than five times the LOQ. <br /> (2) The background result was more than four times the spike added. <br />