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Lancaster Laboratories <br />Where quality is a science <br />Quality Control Summary <br />Client Name: ChevronTexaco <br />75 <br />34-163 <br />Group <br />Number: <br />826433 <br />Reported: 10/21/02 at 02:55 <br />ANE <br />3 <br />30 <br />105 <br />106 <br />68-133 <br />1 <br />Laboratory <br />Compliance Quality <br />Control <br />Analysi Name <br />Blank <br />Blank <br />Report <br />LCS <br />LCSD <br />LCS/LCSD <br />30 <br />Rmeult <br />MDL <br />mits <br />%REC <br />30 <br />1, R <br />Batch number; 02285ASlA <br />Sample <br />number(s):_3916994-3916997 <br />30 <br />105 <br />105 <br />73-136 <br />TPA -GRD - Waters <br />N.D. <br />50. <br />ug/1 <br />94 <br />99 <br />74-116 <br />Batch number: 02285A51B <br />Sample <br />number(s): <br />3916998 <br />TPH-GRO - Waters <br />N.D. <br />50, <br />ug/l <br />94 <br />99 <br />74-116 <br />Batch number: 022880013A <br />Sample <br />number(s): <br />3916994-3916997 <br />Methanol (by Direct Injection) <br />N.D. <br />200. <br />ug/1 <br />104 <br />64-130 <br />Batch number: N022851AB <br />Sample <br />number(s): <br />3916994-3916998 <br />Ethanol <br />Methyl t -butyl ether <br />N.D, <br />N.D. <br />50. <br />ug/1 <br />ug/1 <br />90 <br />96 <br />43-159 <br />di -Isopropyl ether <br />N.D. <br />.5 <br />.5 <br />ug/l <br />106 <br />77-127 <br />74-125 <br />Ethyl t -butyl ether <br />N.D. <br />.5 <br />ug/1 <br />94 <br />74-120 <br />t -Amyl methyl ether <br />N.D. <br />.5 <br />ug/1 <br />91 <br />71-114 <br />t -Butyl alcohol <br />N.D. <br />S. <br />ug/1 <br />72 <br />59-139 <br />Benzene <br />1,2-Dichloroethane <br />N.D. <br />N.D. <br />.5 <br />ug/l <br />105 <br />85-117 <br />Toluene <br />N.D. <br />.5 <br />5 <br />ug/l <br />ug/1 <br />104 <br />106 <br />77-132 <br />85-115 <br />Dibromoethane <br />N.D. <br />.5 <br />ug/l <br />97 <br />81-114 <br />.lbenzene <br />jne (Total) <br />N.D. <br />N.D. <br />.5 <br />ug/1 <br />108 <br />82-119 <br />.5 <br />ug/1 <br />109 <br />84-120 <br />AnalysiR ram* <br />Batch number: 02285ASIA <br />TPH-GRO - Waters <br />Batch number; 02285ASlB <br />TBH-GRO - Waters <br />Batch number: 022880013A <br />Methanol (by Direct Injection) <br />Batch number: N022851AB <br />Ethanol <br />Methyl t -butyl ether <br />di -Isopropyl ether <br />Ethyl t -butyl ether <br />t -Amyl methyl ether <br />t -Butyl alcohol <br />Benzene <br />1,2-Dichloroethane <br />Toluene <br />Page 1 of 3 <br />&JP RPD M <br />6 30 <br />6 30 <br />Sample Matrix Quality Control <br />M$ MSD MS/MSD RPD BRG DUP DUP <br />%RRC IRE C iL mite RPD I= Cone <br />Sample number(s): 3916994-3916997 <br />78 74-132 <br />Sample number(s): 3916998 <br />78 74-132 <br />Sample number(s): 3916994-3916997 <br />104 104 69-127 0 20 <br />Sample number(s): 3916994-3916998 <br />74 <br />75 <br />34-163 <br />2 <br />30 <br />94 <br />98 <br />69-134 <br />3 <br />30 <br />105 <br />106 <br />68-133 <br />1 <br />30 <br />92 <br />95 <br />73-123 <br />3 <br />30 <br />90 <br />92 <br />69-118 <br />1 <br />30 <br />57 <br />69 <br />51-148 <br />3 <br />30 <br />109 <br />109 <br />78-134 <br />0 <br />30 <br />105 <br />105 <br />73-136 <br />0 <br />30 <br />110 <br />110 <br />83-127 <br />0 <br />30 <br />*- Outside of specification <br />tl) The result for one or both determinations was less than five times the LOQ. <br />--:,"'e background result was more than four times the spike added. <br />Lancaster Laboratories, Inc. <br />M 1= M B @ R 2425 New Holland Pike <br />PO Bax 12425 <br />�' Lancaster, PA 17605-2425 <br />Mx 717-656-2300 Fax: 717-656-2681 <br />Cone BPD <br />2216 Rev. 9/11/00 <br />