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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.lancasterlabs.com <br /> Page 2 of 5 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 975894 <br /> Reported: 02/16/06 at 03:16 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysis Name Result MDL Units %REC %REC Limits RPD RPD Max <br /> TPH-GRO - Waters N.D. 50. ug/l 111 113 70-130 2 30 <br /> Benzene N.D. 0.5 ug/l 95 99 86-119 4 30 <br /> Toluene N.D. 0.5 ug/l 99 103 82-119 4 30 <br /> Ethylbenzene N.D. 0.5 ug/l 101 105 81-119 4 30 <br /> Total Xylenes N.D. 1.5 ug/l 103 106 82-120 3 30 <br /> Batch number: 060400027A Sample number(s) : 4696989-4696991,4696995-4696996 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 50. ug/l 106 103 49-120 4 20 <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: 06028WAA026 Sample number(s) : 4696988-4696991,4696995-4696997 UNSPK: P697231 <br /> Naphthalene 86 86 67-112 0 30 <br /> Acenaphthylene 97 97 69-129 0 30 <br /> Acenaphthene 98 99 26-149 1 30 <br /> Fluorene 93 95 68-116 2 30 <br /> Phenanthrene 106 103 62-119 3 30 <br /> Anthracene 83 81 1-172 2 30 <br /> Fluoranthene 103 90 75-127 14 30 <br /> Pyrene 99 106 1-178 7 30 <br /> Benzo(a)anthracene 98 95 18-164 3 30 <br /> Chrysene 86 90 78-125 5 30 <br /> Benzo(b)fluoranthene 99 94 67-123 5 30 <br /> Benzo(k)fluoranthene 79 83 62-123 4 30 <br /> Benzo(a)pyrene 95 91 1-156 5 30 <br /> Indeno(1,2,3-cd)pyrene 98 93 41-131 4 30 <br /> Dibenz(a,h)anthracene 96 93 50-112 3 30 <br /> Benzo(g,h,i)perylene 93 90 8-144 3 30 <br /> Batch number: 06031WAF026 Sample number(s) : 4696992-4696994 UNSPK: 4696992 <br /> Naphthalene 48* 52* 67-112 5 30 <br /> Acenaphthylene 91 85 69-129 7 30 <br /> Acenaphthene 44 14* 26-149 74* 30 <br /> Fluorene 79 79 68-116 1 30 <br /> Phenanthrene 65 63 62-119 2 30 <br /> Anthracene 1 -2* 1-172 200* 30 <br /> Fluoranthene 63* 64* 75-127 1 30 <br /> Pyrene 39 6 1-178 108* 30 <br /> Benzo(a)anthracene 50 26 18-164 61* 30 <br /> Chrysene 79 72* 78-125 9 30 <br /> Benzo(b)fluoranthene 70 52* 67-123 29 30 <br /> Benzo(k)fluoranthene 65 48* 62-123 31* 30 <br /> Benzo(a)pyrene 16 8 1-156 67* 30 <br /> Indeno(1,2,3-cd)pyrene 48 25* 41-131 62* 30 <br /> Dibenz(a,h)anthracene 54 31* 50-112 53* 30 <br /> Benzo(g,h,i)perylene 30 15 8-144 65* 30 <br /> Batch number: 06037A54A Sample number(s) : 4696987,4696989-4696997 UNSPK: 4696992 <br /> *-Outside of specification <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 />