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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 2 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 978150 <br /> Reported: 03/03/06 at 11:16 AM <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: 060470002A Sample number(s) : 4710124-4710130 UNSPK: 4710126 <br /> TPH-DRO (C10-C25) Water 79 80 59-128 2 20 <br /> Batch number: 06047WAH026 Sample number(s) : 4710124-4710130 UNSPK: 4710126 <br /> Naphthalene 97 95 67-112 2 30 <br /> Acenaphthylene 102 99 69-129 2 30 <br /> Acenaphthene 103 94 26-149 8 30 <br /> Fluorene 103 100 68-116 3 30 <br /> Phenanthrene 102 102 62-119 0 30 <br /> Anthracene 79 63 1-172 21 30 <br /> Fluoranthene 105 103 75-127 2 30 <br /> Pyrene 97 82 1-178 16 30 <br /> Benzo(a)anthracene 98 90 18-164 8 30 <br /> Chrysene 98 97 78-125 1 30 <br /> Benzo(b)fluoranthene 107 100 67-123 6 30 <br /> Benzo(k)fluoranthene 91 90 62-123 1 30 <br /> Benzo(a)pyrene 66 50 1-156 27 30 <br /> Indeno(1,2,3-cd)pyrene 87 76 41-131 13 30 <br /> Dibenz(a,h)anthracene 90 82 50-112 9 30 <br /> Benzo(g,h,i)perylene 77 64 8-144 18 30 <br /> Batch number: 06048A15A Sample number(s) : 4710123 UNSPK: P708695 <br /> Benzene 109 78-131 <br /> Toluene 108 78-129 <br /> Ethylbenzene 104 75-133 <br /> Total Xylenes 107 80-134 <br /> Batch number: 06052A54A Sample number(s) : 4710124-4710126,4710129-4710130 UNSPK: 4710126 <br /> TPH-GRO - Waters 130 127 63-154 3 30 <br /> Benzene 104 108 78-131 3 20 <br /> Toluene 108 111 78-129 3 30 <br /> Ethylbenzene 110 113 75-133 2 30 <br /> Total Xylenes 111 114 80-134 3 30 <br /> Batch number: 06052A54C Sample number(s) : 4710127-4710128 UNSPK: P710126 <br /> TPH-GRO - Waters 130 127 63-154 3 30 <br /> Benzene 104 108 78-131 3 20 <br /> Toluene 108 111 78-129 3 30 <br /> Ethylbenzene 110 113 75-133 2 30 <br /> Total Xylenes 111 114 80-134 3 30 <br /> Batch number: 060530012A Sample number(s) : 4710125,4710130 UNSPK: P709417 <br /> TPH-DRO(C10-C25)Water w/ SiGel 82 81 59-128 3 20 <br /> Surrogate Quality Control <br /> Surrogate recoveries which are outside of the QC window are confirmed <br /> unless attributed to dilution or otherwise noted on the Analysis Report. <br /> Analysis Name: TPH-DRO (C10-C25) Water <br /> Batch number: 060470002A <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 />