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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 6 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 944093 <br /> Reported: 06/09/05 at 02:12 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 /> Batch number: 051450021A Sample number(s) : 4527422,4527424-4527425,4527427,4527430-4527433 <br /> Total TPH N.D. 4.0 mg/kg 88 87 65-122 1 20 <br /> C10-C36 N.D. 4.0 mg/kg <br /> Batch number: 05146A33A Sample number(s) : 4527433 <br /> Benzene N.D. 0.005 mg/kg 102 85-115 <br /> Toluene N.D. 0.005 mg/kg 102 81-119 <br /> Ethylbenzene N.D. 0.005 mg/kg 101 85-115 <br /> Total Xylenes N.D. 0.02 mg/kg 100 85-115 <br /> Batch number: 05146A33B Sample number(s) : 4527422,4527424-4527425,4527427,4527430-4527432 <br /> Benzene N.D. 0.005 mg/kg 102 85-115 <br /> Toluene N.D. 0.005 mg/kg 102 81-119 <br /> Ethylbenzene N.D. 0.005 mg/kg 101 85-115 <br /> Total Xylenes N.D. 0.02 mg/kg 100 85-115 <br /> Batch number: 051470015A Sample number(s) : 4527428 <br /> TPH-DRO CALUFT(Water) w/Si Gel N.D. 50. ug/l 49* 25* 64-125 64* 20 <br /> Batch number: Z051441AA Sample number(s) : 4527429 <br /> Benzene N.D. 0.5 ug/l 96 85-117 <br /> Toluene N.D. 0.5 ug/l 96 85-115 <br /> Ethylbenzene N.D. 0.5 ug/l 96 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 96 83-113 <br /> Batch number: Z051444AA Sample number(s) : 4527423,4527426,4527428 <br /> Benzene N.D. 0.5 ug/l 96 85-117 <br /> Toluene N.D. 0.5 ug/l 99 85-115 <br /> Ethylbenzene N.D. 0.5 ug/l 100 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 99 83-113 <br /> Sample Matrix Quality Control <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: 05142A08B Sample number(s) : 4527429 <br /> TPH-GRO - Waters 126 63-154 <br /> Batch number: 05142A08C Sample number(s) : 4527423,4527426,4527428 <br /> TPH-GRO - Waters 126 63-154 <br /> Batch number: 05144SLD026 Sample number(s) : 4527422,4527424-4527425,4527427,4527430-4527433 <br /> Naphthalene 83 87 49-118 5 30 <br /> Acenaphthylene 83 131 27-155 43* 30 <br /> Acenaphthene 90 95 46-129 6 30 <br /> Fluorene 97 106 47-136 8 30 <br /> Phenanthrene 101 104 46-140 3 30 <br /> Anthracene 95 105 43-139 11 30 <br /> Fluoranthene 94 96 28-151 1 30 <br /> Pyrene 97 104 47-139 8 30 <br /> Benzo(a)anthracene 98 112 42-146 13 30 <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 />