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Lancaster, <br /> Anal sis Report <br /> LaboratoriesF . <br /> Y p <br /> 2425 New Holland Pike,PO Box-12425.Lancaster,PA.17605-2425,,i717-656-2300 Fax:717-656-2661•www.tarlcasterlabs.com. <br /> r Page 1 of 4 <br /> Quality Control Summary <br /> Client Name: Chevron . Group Number: 1171911 <br /> Reported: 12/02/09 at 03:35 PM <br /> Matrix QC may not be reported if site-specific QC samples'were.not <br /> submitted. In these situations, to demonstrateprecision 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: D093274AA Sample number(s) : 5843079-5843081 <br /> t-Amyl methyl ether N.D 0.5 ug11 101 77-120 <br /> Benzene N:D 0.5' ug/1' 101- 79-120 <br /> t-Butyl alcohol N.D 2. ug/1 94, 73=120. <br /> 1,2-Dibromoethane • N.D. 0.5 ug/l 101 80-120 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 99 70-130 <br /> Ethanol N.D.. 50.. ug/1 121 40-158. <br /> Ethyl t-butyl ether- N.D: 0:'5 ug/1 98 76-120 <br /> Ethylbenzene N.D. 0.5 ug/1 101 79-120• <br /> di-Isopropyl ether N..D. 0.5 ug/l 98 71-124 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 95 76-120 <br /> Toluene N.D. 0.5 ug/1 106 79-:120 <br /> Xylene (Total), . N.D. 0.5 ug/l 106 80-120 <br /> Batch number: 09327B20A Sample number(s) : 5843079-5843081 <br /> �w TPH-GRO N. CA water C6-C12 - N..D., 5`0. ug/l :118 127 75-135 7 30 <br /> Batch number: 093240011A Sample number(s) : 5843079-5843080 <br /> r Total TPH N.D. 80. „ug/i 95 88 . 60-120 8 20 <br /> LTPH Motor Oil C16-C36 N.D. 40. ug/1 <br /> Batch number: 093250002A Sample number(s) : 5843079-5843080 <br /> TPH-DRO CA C10-C28 N.D. 32. ug/1 74 75 56-122_ 2 20 <br /> Batch number: 093240020A Sample number(s) : 5843079-5843080 <br /> Motor Oil C16-C36 w/Si Gel N.D. 40. ug/1 <br /> Total TPH w/Si Gel N.D. 40. ug/l 99 94 66-117 5 20 <br /> Batch number: 093250018A Sample number(s) : 5843079-5843080 <br /> TPH-DRO CA C10-C28 w/ Si Gel N.D. 32. ug/l .75 76 52-126 2 20 <br /> Batch number: 093290024A Sample numb 6r(s) : 5843079-5843080 <br /> Methanol (by Direct Injection) N.D. 200. ug/l 104 69-131 <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: D093274AA Sample number(s) : 5843079-5843081 UNSPK: P842887 <br /> t-Amyl methyl ether 104 96 75-122 8 30 <br /> *-Outside of specification <br /> (1)The result for one or both determinations was less than five times the LOQ. <br /> (2)The unspiked result was more than four times the spike added. <br /> C l <br />