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Lancaster _ <br /> Laboratories Ana/YS�s Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605.2425•717-656-2300 Fax:717-656-2681•www.lancasteriabs.com <br /> Page 2 of 3 <br /> Quality Control Summary <br /> Client Name: Chevron Environmental Mgt. Co. Group Number: 886336 <br /> Reported: 03/11/04 at 02:52 PM <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BXG DUP DUP Dup <br /> RPD <br /> Analysis Name %REC %REC Limits RPD MAX Conc Conc RPD Max <br /> Batch number: 04066SLA026 Sample number(s) : 4224592-4224596 <br /> Naphthalene 62 65 18-157 4 30 <br /> Acenaphthylene 54 53 20=147 1 30 <br /> Acenaphthene 56 56 29-139 1 30 <br /> Fluorene 56 59 1-164 4 30 <br /> Phenanthrene 56 58 20-144 3 30 <br /> Anthracene 53 53 12-151 0. 30 <br /> Fluoranthene 61 63 27-139 3 30 <br /> Pyrene 61 63 16-159 3 30 <br /> Benzo(a)anthracene 58 60 28-152 3 30 <br /> Chrysene 57 59 36-144 4 30 <br /> Benzo(b)fluoranthene 44 44 29-149 0 30 <br /> Benzo(k)fluoranthene 47 48 30-150 3 30 <br /> Benzo(a)pyrene 55 54 27-146 1 30 <br /> Indeno(1,2,3-cd)pyrene 66 71 37-157 6 30 <br /> Dibenz(a,h)anthracene 64 .68 29-156' 6 30 <br /> Benzo(g,h,i)perylene 66 68 19-163 4. 30 <br /> i Surrogate Quality Control <br /> Analysis Name: Custom TPH with Ranges (soil) <br /> Batch number: 040610001A <br /> Chlorobenzene Orthoterphenyl <br /> 4224592 66 76 <br /> 4224593 76 84 <br /> 4224594 68 82 <br /> 4224595 95 97 <br /> 4224596 61 89 <br /> Blank 105 95 <br /> LCS 116 84 <br /> LCSD 118 89 <br /> Limits: 27-122 54-137 <br /> Analysis Name: BTEX <br /> Batch number: 04062A31A <br /> Trifluorotoluene-P <br /> 4224592 106 <br /> 4224593 105 <br /> 4224594 114 <br /> 4224595 106 <br /> 4224596 104 <br /> Blank 113 <br /> LCS 113 <br /> MS 98 <br /> MSD 102 <br /> Limits: 72-122 <br /> *-Outside of specification <br /> (I) 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 />