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Lancaster <br /> Laboratories Analysis Report <br /> ' 2425 New Holland Pike,PO Bar 12425.Lancaster,PA 17605.2425•717-651 Fax:717 •W W W.190CeStsl120.9.COm <br /> Page 1 of 4 <br /> ' Quality Control Summary <br /> ' Client Name: Chevron Group Number: 1119122 <br /> Reported: 11/20/08 at 01:19 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 /> Analvaie Name Result MDL Unite %RBC RR Limits RPD RPD Max <br /> Batch number: 08315000SA Sample number(s): 5522775-5522789 <br /> ' DRO (CID-C28) N.D. 32. ug/l 91 93 63-119 1 20 <br /> Batch number: 08317C20A Sample number(s) : 5522774,5522777 <br /> TPH-GRO - Waters N.D. 50. ug/l 108 108 75-135 0 30 <br /> Batch number: 0831BA20A Sample number(s): 5522778-5522787,5522789 <br /> ' TPH-GRO - Waters N.D. 50. ug/1 100 100 75-135 0 30 <br /> Batch number: D083211AA Sample number(s): 5522774-5522776,5522788-5522789 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 106 73-119 <br /> Benzene N.D. 0.5 ug/l 101 78-119 <br /> ' Toluene N.D. 0.5 ug/l 109 85-115 <br /> Ethylbenzene N.D. O.S ug/l 104 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 106 83-113 <br /> Batch number: D083222AA Sample number(s): 5522786-5522787 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 105 73-119 <br /> ' t-Amyl methyl ether N.D. 0.5 ug/l 106 79-113 <br /> t-Butyl alcohol N.D. 2. ug/l 81 74-117 <br /> Batch number: Z083211AA Sample number(s) : 5522777-5522785 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 108 73-119 <br /> t-Amyl methyl ether N.D. 0.5 ug/1 99 79-113 <br /> ' t-Butyl alcohol N.D. 2. ug/l 105 74-117 <br /> Benzene N.D. 0.5 ug/l 102 78-119 <br /> Toluene N.D. 0.5 ug/l 111 85-115 <br /> Ethylbenzene N.D. 0.5 ug/l 109 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 112 83-113 <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 APD BEG DUP DUP Dup RPD <br /> Analysis Name %REC REC Li.its RPD DAX Com. Cons RPD Max <br /> ' Batch number: 08317C20A Sample number(s) : 5522774,5522777 UNSPK: P521367 -' <br /> TPH-GRO - Waters 117 63-154 <br /> Batch number: 0831BA20A Sample number(s) : 5522778-5522787,5522789 IINSPK: 5522787 <br /> TPH-GRO - Waters 118 63-154 <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 />