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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: 1082731 <br /> Reported: 04/16/08 at 11:10 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: 080840014A Sample number(s) 5310143-5310145 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 85 90 57-118 6 20 <br /> Batch number: 08084WABO26 Sample number(s) : 5310143-5310145 <br /> Naphthalene N.D. 0.05 ug/l 80 84 68-100 6 30 <br /> Acenaphthylene N.D. 0.01 ug/l 88 84 69-126 4 30 <br /> Acenaphthene N.D. 0.01 ug/l 89 85 68-116 5 30 <br /> Fluorene N.D. 0.01 ug/l 100 97 62-136 3 30 <br /> Phenanthrene N.D. 0.01 ug/l 92 92 71-124 0 30 <br /> Anthracene N.D. 0.01 ug/l 82 83 68-122 2 30 <br /> Fluoranthene N.D. 0.01 ug/l 93 99 67-133 7 30 <br /> Pyrene N.D. 0.01 ug/l 87 92 68-128 6 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 99 98 80-119 1 30 <br /> Chrysene N.D. 0.01 ug/l 107 103 80-124 3 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 92 101 75-123 9 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 82 84 72-122 3 30 <br /> Benzo(a)pyrene N.D. 0.005 ug/l 79 79 70-118 0 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 101 107 63-140 6 30 <br /> Dibenz(a,h)anthracene N.D. 0.005 ug/l 100 105 60-138 5 30 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 94 100 58-138 7 30 <br /> Batch number: 080990001A Sample number(s) : 5310145 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 29. ug/l 68 69 45-114 2 20 <br /> Batch number: L080852AA Sample number(s) : 5310142-5310145 <br /> Benzene N.D. 0.1 ug/l 106 106 87-111 0 30 <br /> Toluene N.D. 1. ug/l 103 104 89-113 1 30 <br /> Ethylbenzene N.D. 1. ug/l 104 105 88-114 2 30 <br /> Xylene (Total) N.D. 1. ug/l 103 104 88-115 1 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: L080852AA Sample number(s) : 5310142-5310145 UNSPK: P308198 <br /> Benzene 115 85-126 <br /> Toluene 113 94-128 <br /> Ethylbenzene 116 96-128 <br /> Xylene (Total) 113 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 />