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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: 1028980 <br /> Reported: 03/26/07 at 03:40 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 Procrram Units %REC %REC Limits RPD RPD Max <br /> RL <br /> Batch number: 070730014A Sample number(s) : 5003020-5003022,5003024 <br /> TPH-DRO (C10-C25) Water N.D. 50. ug/l 73 74 57-118 2 20 <br /> Batch number: 07073WAE026 Sample number(s) : 5003020-5003022,5003024 <br /> Naphthalene N.D. 0.01 ug/l 109 104 70-130 4 30 <br /> Acenaphthylene 0.0062 0.01 ug/l 112 106 70-130 6 30 <br /> Acenaphthene N.D. 0.01 ug/l 111 105 70-130 6 30 <br /> Fluorene N.D. 0.01 ug/l 133* 127 70-130 4 30 <br /> Phenanthrene N.D. 0.01 ug/l 113 106 70-130 7 30 <br /> Anthracene N.D. 0.01 ug/l 115 107 70-130 7 30 <br /> Fluoranthene N.D. 0.01 ug/l 144* 133* 70-130 8 30 <br /> Pyrene N.D. 0.01 ug/l 112 107 70-130 4 30 <br /> Benzo(a)anthracene N.D. 0.01 ug/l 125 118 70-130 6 30 <br /> Chrysene N.D. 0.01 ug/l 120 115 70-130 4 30 <br /> Benzo(b)fluoranthene N.D. 0.01 ug/l 132* 125 70-130 5 30 <br /> Benzo(k)fluoranthene N.D. 0.01 ug/l 130 124 70-130 5 30 <br /> Benzo(a)pyrene N.D. 0.005 ug/l 123 116 70-130 6 30 <br /> Indeno(1,2,3-cd)pyrene N.D. 0.01 ug/l 122 116 70-130 5 30 <br /> Dibenz(a,h)anthracene N.D. 0.005 ug/l 96 92 70-130 5 30 <br /> Benzo(g,h,i)perylene N.D. 0.01 ug/l 118 112 70-130 5 30 <br /> Batch number: 07074021201A Sample number(s) : 5003024 <br /> Total Dissolved Solids N.D. 9700. ug/l 96 80-120 <br /> Batch number: 070790020A Sample number(s) : 5003020-5003022,5003024 <br /> TPH-DRO(C10-C25)Water w/ SiGel N.D. 29. ug/l 64 64 57-118 0 20 <br /> Batch number: C070781AA Sample number(s) : 5003020-5003024 <br /> Benzene N.D. 0.1 ug/l 99 99 87-111 0 30 <br /> Toluene N.D. 1. ug/l 99 98 89-113 1 30 <br /> Ethylbenzene N.D. 1. ug/l 99 101 88-114 1 30 <br /> Xylene (Total) N.D. 1. ug/l 101 101 88-115 1 30 <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: 07074021201A Sample number(s) : 5003024 UNSPK: P003778 BKG: P003778 <br /> Total Dissolved Solids 90 94 60-140 1 5 975,000. 967,000. 1 5 <br /> Batch number: C070781AA Sample number(s) : 5003020-5003024 UNSPK: 5003024 <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 />