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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: 1084563 <br /> Reported: 04/18/08 at 02:45 PM <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: 08095WACO26 Sample number(s) : 5321511-5321515 <br /> Naphthalene N.D. 0.05 ug/l 82 79 68-100 3 30 <br /> Acenaphthylene N.D. 0.01 ug/l 84 87 69-126 4 30 <br /> Acenaphthene N.D. 0.01 ug/l 83 84 68-116 2 30 <br /> Fluorene N.D. 0.01 ug/l 78 80 62-136 2 30 <br /> Phenanthrene N.D. 0.01 ug/l 99 96 71-124 3 30 <br /> Anthracene N.D. 0.01 ug/l 92 89 68-122 3 30 <br /> Fluoranthene N.D. 0.01 ug/l 95 91 67-133 4 30 <br /> Pyrene N.D. 0.01 ug/l 99 97 68-128 2 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 101 99 80-119 2 30 <br /> Chrysene N.D. 0.01 ug/l 105 104 80-124 1 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 106 101 75-123 5 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 118 112 72-122 5 30 <br /> Benzo(a)pyrene N.D. 0.003 ug/l 96 92 70-118 4 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 101 99 63-140 2 30 <br /> Dibenz(a,h)anthracene N.D. 0.003 ug/l 101 101 60-138 1 30 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 101 99 58-138 1 30 <br /> Batch number: 080960013A Sample number(s) : 5321511-5321515 <br /> TPH-DRO (C10-C25) Water 57. 50. ug/l 93 79 57-118 16 20 <br /> Batch number: 081020016A Sample number(s) : 5321515 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 29. ug/l 73 53 45-114 32* 20 <br /> Batch number: C080991AA Sample number(s) : 5321510-5321515 <br /> Benzene N.D. 0.1 ug/l 95 93 87-111 2 30 <br /> Toluene N.D. 1. ug/l 95 93 89-113 3 30 <br /> Ethylbenzene N.D. 1. ug/l 96 94 88-114 3 30 <br /> Xylene (Total) N.D. 1. ug/l 99 96 88-115 3 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: C080991AA Sample number(s) : 5321510-5321515 UNSPK: P320618 <br /> Benzene 105 85-126 <br /> Toluene 102 94-128 <br /> Ethylbenzene 103 96-128 <br /> Xylene (Total) 97 91-126 <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 />