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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: 1001414 <br /> Reported: 08/24/06 at 02:23 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 MDL Units %REC %REC Limits RPD RPD Max <br /> Batch number: 062260012A Sample number(s) : 4840388,4840390-4840392 <br /> TPH-DRO (C10-C25) Water 36. 29. ug/l 83 91 62-127 10 20 <br /> Batch number: 06227A53A Sample number(s) : 4840388-4840392 <br /> TPH-GRO - Waters N.D. 50. ug/l 107 111 70-130 3 30 <br /> Benzene N.D. 0.5 ug/l 108 98 86-119 9 30 <br /> Toluene N.D. 0.5 ug/l 110 100 82-119 9 30 <br /> Ethylbenzene N.D. 0.5 ug/l 109 99 81-119 10 30 <br /> Total Xylenes N.D. 1.5 ug/l 110 101 82-120 9 30 <br /> Batch number: 06227WACO26 Sample number(s) : 4840388,4840390-4840392 <br /> Naphthalene N.D. 0.01 ug/l 97 98 70-111 2 30 <br /> Acenaphthylene N.D. 0.02 ug/l 91 95 75-110 5 30 <br /> Acenaphthene N.D. 0.01 ug/l 99 101 81-109 2 30 <br /> Fluorene N.D. 0.01 ug/l 99 104 75-115 5 30 <br /> Phenanthrene N.D. 0.01 ug/l 101 106 76-114 5 30 <br /> Anthracene N.D. 0.02 ug/l 96 101 67-113 4 30 <br /> Fluoranthene N.D. 0.01 ug/l 101 107 69-123 5 30 <br /> Pyrene N.D. 0.02 ug/l 98 105 76-114 6 30 <br /> Benzo(a)anthracene N.D. 0.02 ug/l 101 103 76-111 2 30 <br /> Chrysene N.D. 0.02 ug/l 102 104 76-112 2 30 <br /> Benzo(b)fluoranthene N.D. 0.02 ug/l 118 118 56-138 0 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 107 105 68-124 2 30 <br /> Benzo(a)pyrene N.D. 0.02 ug/l 105 106 64-114 0 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.02 ug/l 116 118 76-119 2 30 <br /> Dibenz(a,h)anthracene N.D. 0.02 ug/l 121 118 60-126 2 30 <br /> Benzo(g,h,i)perylene N.D. 0.02 ug/l 120* 120* 74-117 0 30 <br /> Batch number: 062300017A Sample number(s) : 4840390-4840391 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 29. ug/l 75 78 62-127 3 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: 06227A53A Sample number(s) : 4840388-4840392 UNSPK: 4840388, 4840390 <br /> TPH-GRO - Waters 122 123 63-154 0 30 <br /> Benzene 106 107 78-131 1 20 <br /> Toluene 110 112 78-129 2 30 <br /> Ethylbenzene 111 114 75-133 2 30 <br /> Total Xylenes 112 115 84-131 2 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 />