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n �r� <br /> Lancaster <br /> , Laboratories Analysis Report <br /> 2425 New Holland Pike PO Box 12425 Lancaster PA 176052425•717-656-2300 Fax 717-8562681•WWW lancasterlabs com <br /> Page ] of 3 <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 872684 <br /> Reported 11/11/03 at 11 20 AM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analypil Name Rea14DI. Units %REC Usi�, mite RPD- RPD.--Max <br /> Batch number 03302A16A Sample number(s) 4153133-4153134 <br /> TPH-GRQ - Waters N D 50 ug/l 102 102 70-130 0 30 <br /> Batch number 03303A07B Sample number(a) 4153132 <br /> TPH-GRO - Waters N D 50 ug/1 100 70-130 <br /> Batch number 033070007A Sample number(S) 4153133 <br /> Methanol (by Direct Injection) N D 1000 ug/i 96 78-114 <br /> Batch number 033070010A Sample number(S) 4153134 <br /> Methanol (by Direct Injection) N D 1000 ug/l 92 78-114 <br /> Batch number P033032AA Sample number(s) 4153132 <br /> Methyl Tertiary Butyl Ether N D 2 ug/l 98 77-127 <br /> Benzene N D 5 ug/l 101 85-117 <br /> Toluene N D 5 ug/1 104 85-115 <br /> Ethylbenzene N D 5 ug/l 103 82-119 <br /> Xylene (Total) N D 5 ug/l 105 84-120 <br /> Whch <br /> number P033041AA Sample number(s) 4153133-4153134 <br /> nol N D 500 ug/l 73 46-145 <br /> yl Tertiary Butyl Ether N D 2 ug/l 91 77-127 <br /> di-Isopropyl ether N D 2 ug/1 Be 74-125 <br /> Ethyl t-butyl ether N D 2 ug/l 87 74-120 <br /> t-Amyl methyl ether N D 2 ug/l 92 79-113 <br /> t-Butyl alcohol N D 100 ug/1 88 53-147 <br /> Benzene N D 5 ug/l 91 85-117 <br /> Toluene N D 5 ug/1 93 85-115 <br /> Ethylbenzene N D 5 ug/l 93 82-119 <br /> Xylene (Total) N D 5 ug/l 95 84-120 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BRG DUP D17P Dup <br /> RPD <br /> a %REC SZEC Limits RPD MAX Conc Conc RPD Max <br /> Batch number 03302A16A Sample number(S) 4153133-4153134 <br /> TPH-GRQ - Waters 119 63-154 <br /> Batch number 03303A07B Sample number(s) 4153132 <br /> TPH-GRO - Waters 104 102 63-154 2 30 <br /> Batch number 033070007A Sample number(s) 4153133 <br /> Methanol (by Direct Injection) 104 104 73-117 0 20 <br /> Batch number 033070010A Sample number(s) 4153134 <br /> Methanol (by Direct Injection) 112 108 73-117 4 20 <br /> Batch number P033032AA Sample number(s) 4153132 <br /> Methyl Tertiary Butyl Ether 107 104 69-134 1 30 <br /> Benzene 108 107 83-128 1 30 <br /> Toluene 111 110 83-127 1 30 <br /> Ethylbenzene 110 109 62-129 1 30 <br /> Outside of speclficat'on <br /> 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 />