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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: 1084090 <br /> Reported: 04/17/08 at 11:09 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 Report LCS LCSD LCS/LCSD <br /> Analysis Name Result Procrram Units %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: 080930019A Sample number(s) : 5318596-5318600 <br /> TPH-DRO (C10-C25) Water 53. 50. ug/l 105 91 57-118 14 20 <br /> Batch number: 08093WAH026 Sample number(s) : 5318596-5318600 <br /> Naphthalene N.D. 0.05 ug/l 76 82 68-100 8 30 <br /> Acenaphthylene N.D. 0.01 ug/l 80 85 69-126 6 30 <br /> Acenaphthene N.D. 0.01 ug/l 77 83 68-116 7 30 <br /> Fluorene N.D. 0.01 ug/l 73 78 62-136 6 30 <br /> Phenanthrene N.D. 0.01 ug/l 91 94 71-124 3 30 <br /> Anthracene N.D. 0.01 ug/l 91 93 68-122 3 30 <br /> Fluoranthene N.D. 0.01 ug/l 91 92 67-133 1 30 <br /> Pyrene N.D. 0.01 ug/l 92 94 68-128 2 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 94 98 80-119 4 30 <br /> Chrysene N.D. 0.01 ug/l 96 100 80-124 4 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 105 101 75-123 4 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 98 111 72-122 12 30 <br /> Benzo(a)pyrene N.D. 0.003 ug/l 92 98 70-118 6 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 92 100 63-140 9 30 <br /> Dibenz(a,h)anthracene N.D. 0.003 ug/l 93 101 60-138 8 30 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 89 101 58-138 13 30 <br /> Batch number: 081020015A Sample number(s) : 5318596-5318597 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 29. ug/l 73 70 45-114 4 20 <br /> Batch number: C080981AA Sample number(s) : 5318595-5318599 <br /> Benzene N.D. 0.1 ug/l 98 87-111 <br /> Toluene N.D. 1. ug/l 96 89-113 <br /> Ethylbenzene N.D. 1. ug/l 96 88-114 <br /> Xylene (Total) N.D. 1. ug/l 100 88-115 <br /> Batch number: C081001AA Sample number(s) : 5318600 <br /> Benzene N.D. 0.1 ug/l 96 94 87-111 2 30 <br /> Toluene N.D. 1. ug/l 97 95 89-113 2 30 <br /> Ethylbenzene N.D. 1. ug/l 98 96 88-114 2 30 <br /> Xylene (Total) N.D. 1. ug/l 100 98 88-115 2 30 <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 RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: C080981AA Sample number(s) : 5318595-5318599 UNSPK: P317182 <br /> *-Outside of specification <br /> (1)The result for one or both determinations was less than five times the LOQ. <br /> (2)The unspiked result was more than four times the spike added. <br />