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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: 935922 <br /> Reported: 04/08/05 at 01:00 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: 05080SLE026 Sample number(s) : 4485204-4485212,4485214-4485215,4485219 <br /> Naphthalene N.D. 1. ug/kg 63 58-114 <br /> Acenaphthylene N.D. 0.3 ug/kg 60 43-122 <br /> Acenaphthene N.D. 0.3 ug/kg 62 58-114 <br /> Fluorene N.D. 0.3 ug/kg 65 59-124 <br /> Phenanthrene N.D. 0.3 ug/kg 68 55-128 <br /> Anthracene N.D. 0.3 ug/kg 69 55-122 <br /> Fluoranthene N.D. 0.7 ug/kg 66 55-132 <br /> Pyrene N.D. 0.7 ug/kg 76 53-131 <br /> Benzo(a)anthracene N.D. 0.3 ug/kg 66 53-125 <br /> Chrysene N.D. 0.3 ug/kg 66 55-131 <br /> Benzo(b)fluoranthene N.D. 0.3 ug/kg 80 53-156 <br /> Benzo(k)fluoranthene N.D. 0.3 ug/kg 81 61-140 <br /> Benzo(a)pyrene N.D. 0.3 ug/kg 70 57-132 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.3 ug/kg 69 64-148 <br /> Dibenz(a,h)anthracene N.D. 0.3 ug/kg 58* 59-151 <br /> Benzo(g,h,i)perylene N.D. 0.3 ug/kg 74 61-143 <br /> Batch number: 05082A33A Sample number(s) : 4485212 <br /> TPH-GRO - Soils N.D. 1.0 mg/kg 86 67-119 <br /> Benzene N.D. 0.005 mg/kg 103 85-115 <br /> Toluene N.D. 0.005 mg/kg 102 81-119 <br /> Ethylbenzene N.D. 0.005 mg/kg 99 85-115 <br /> Total Xylenes N.D. 0.02 mg/kg 102 85-115 <br /> MTBE N.D. 0.05 mg/kg 109 71-118 <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: 05077A53B Sample number(s) : 4485213,4485216-4485218,4485220 <br /> TPH-GRO - Waters 95 99 63-154 4 30 <br /> Benzene 106 104 78-131 2 20 <br /> Toluene 109 107 78-129 2 30 <br /> Ethylbenzene 109 107 75-133 2 30 <br /> Total Xylenes 110 108 86-132 2 30 <br /> Methyl tert-Butyl Ether 108 109 70-134 1 30 <br /> Batch number: 0508OA33A Sample number(s) : 4485204-4485211,4485214-4485215,4485219 <br /> TPH-GRO - Soils 86 87 39-118 0 30 <br /> Benzene 92 98 52-135 6 30 <br /> Toluene 93 98 59-129 6 30 <br /> Ethylbenzene 92 97 56-132 6 30 <br /> Total Xylenes 93 99 54-134 5 30 <br /> MTBE 95 96 45-141 1 30 <br /> Batch number: 05080SLE026 Sample number(s) : 4485204-4485212,4485214-4485215,4485219 <br /> Naphthalene 57 60 49-118 5 30 <br /> Acenaphthylene 48 63 27-155 27 30 <br /> Acenaphthene 58 63 46-129 10 30 <br /> Fluorene 60 64 47-136 8 30 <br /> Phenanthrene 59 65 46-140 9 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 />