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:ILLIJ'L'►I�►7 it=s �1 �. <br />Lancaster <br />Laboratories <br />(D Page 2 of 4 <br />Quality Control Summary <br />Client Name: ChevronTexaco <br />Reported: 12/12/02 at 11:42 <br />AM <br />Group Number: 832605 <br />AAJLlX91-O Ulme <br />Am <br />A -P-82 <br />Limits <br />RP$ NM c orkc R <br />Batch number: 02333A53A <br />TPH-GRO - Waters <br />Sample <br />number(s): <br />—PD max <br />3950561-3950566 <br />112 <br />74-132 <br />Batch number: <br />Methanol (by DirectOInjection) <br />100 96umber(fi9-1270561-995056 <br />z0 <br />96 <br />Batch number: N023341AB <br />Ethanol <br />Sample number(s): <br />3950565-3950566 <br />' <br />Methyl t -butyl ether <br />100 <br />99 <br />99 <br />100 <br />34-163 <br />69-134 <br />1 30 <br />di -Isopropyl ether <br />Ethyl t -butyl ether <br />109 <br />111 <br />68-133 <br />1 30 <br />2 30 <br />t -Amyl methyl ether <br />86 <br />85 <br />89 <br />87 <br />73-123 <br />69-118 <br />4 30 <br />3 <br />t -Butyl alcohol <br />Benzene <br />89 <br />89 <br />51-148 <br />30 <br />1 30 <br />1,2-Dichloroethane <br />109 <br />109 <br />110 <br />78-134 <br />1 30 <br />Toluene <br />111 <br />110 <br />73-136 <br />0 30 <br />1,2-Dibromoethane <br />91 <br />113 <br />93 <br />83-127 <br />2 30 <br />Ethylbenzene <br />112 <br />112 <br />78-120 <br />82-134 <br />3 30 <br />0 <br />Xylene (Total) <br />110 <br />112 <br />82-130 <br />30 <br />1 30 <br />Batch number: N023361AA <br />Ethanol <br />Sample <br />number(s): <br />3950562-3950564 <br />Methyl t -butyl ether <br />93 <br />100 <br />95 <br />101 <br />34-163 <br />69-134 <br />3 30 <br />1 <br />di -isopropyl ether <br />107 <br />109 <br />68-133 <br />30 <br />2 30 <br />Ethyl t -butyl ether <br />95 <br />98 <br />73-123 <br />3 30 <br />t -Amyl methyl ether <br />91 <br />93 <br />69-118 <br />2 30 <br />Butyl alcohol <br />lzene <br />85 <br />86 <br />51-148 <br />1 30 <br />a-Dichloroethane <br />107 <br />109 <br />78-134 <br />2 30 <br />Toluene <br />100 <br />102 <br />73-136 <br />2 30 <br />1,2-Dibromoethane <br />109 <br />90 <br />111 <br />83-127 <br />2 30 <br />Ethylbenzene <br />110 <br />90 <br />111 <br />78-120 <br />82-134 <br />0 30 <br />1 30 <br />Xylene (Total) <br />109 <br />111 <br />82-130 <br />2 30 <br />Batch number: N023361AD <br />Ethanol <br />Sample <br />number(a)- 3950561 <br />Methyl t -butyl ether <br />93 <br />100 . <br />95 <br />101 <br />34-163 <br />69-134 <br />3 30 <br />1 30 <br />di -Isopropyl ether <br />107 <br />109 <br />68-133 <br />2 30 <br />Ethyl t -butyl ether <br />95 <br />98 <br />73-123 <br />3 30 <br />.t -Amyl methyl ether <br />91 <br />93 <br />69-118 <br />2 30 <br />t -Butyl alcohol <br />85 <br />86 <br />51-148 <br />1 30 <br />Benzene <br />1,2-Dichloroethane <br />107 <br />100 <br />109 <br />102 <br />78-134 <br />2 30 <br />Toluene <br />109 <br />111 <br />73-136 <br />83-127 <br />2 30 <br />2 30 <br />1,2-Dibromoethane <br />90 <br />90 <br />78-120 <br />0 30 <br />Ethylbenzene <br />Xylene (Total) <br />110 <br />111 <br />82-134 <br />1 30 <br />109 <br />111 <br />82-130. <br />2 30 <br />Surrogate Quality Control <br />Analysis Name: TPH-GRO - Waters <br />Batch number: 02333A53A <br />Trifluorotoluene-P <br />3950561 99 <br />*- Outside of specification <br />(1) The result for one or both determinations was less than five times the LOQ. <br />(The background result was more than four times the spike added. <br />Lancaster Laboratories, Inc. <br />MEMBER 2425 New Holland Pike <br />Pa Box 12425 <br />NEW a Lancaster, PA <br />17605-2425 <br />717.656-2300 Fax -717-656-2681 <br />2216 Rev. 10/2102 <br />