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' 1 ! <br /> Lancaster. .-_ _ __4 ,__ _ _ _ . -,hale lysis Report, - -- <br /> . Laboratories Y • <br /> 2425 New Holland Pike PO Bax 12425 Lancaster PA 176052425•717 656-2300 Fax 717-656-2681 www lancasterlatls com <br /> ' Page 5 of 7 <br /> t ` <br /> Quality Control Summary <br /> Client Name ChevronTexaco Group Number 953420 <br /> Reported 08/10/05 at 06 22 PEN <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD nKG DUP - DUP Dup RPD <br /> Analysis Name %RSC %RSC Limits RPD MAX COnC Canc RPD Max <br /> Trichloroethene 102 101 83-136 1 30 <br /> 1,2-Dzchloropropane 89 90 83-129 0 30 <br /> Dsbromomethane 100 99 82-128 2 30 <br /> Bromodichloromethane 103 101 80-129 2 30 <br /> Toluene 101 100 83-127 0 30 <br /> 1,1,2-Trichloroethane 96 95 77-125 1 30 <br /> Tetrachloroethene 102 101 78-133 1 30 <br /> 1,3-Dichloropropane 94 95 82-121 1 30 <br /> Dibromochloromethane 98 97 73-119 1 30 <br /> 1,2-Dibromoethane 100 99 78-120 0 30 <br /> Chlorobenzene 99 100 83-120 0 30 <br /> 1,1,1,2-Tetrachloroethane 101 100 83-119 2 30 <br /> Ethylbenzene 104 104' 82-129 0 30 <br /> m+p-Xylene 104 104 82-130 0 30 <br /> o-Xylene - 103 104 82-130 1 30 <br /> Styrene 98 99 76-126 1 30 <br /> Bromoform 69 91 64-119 1 30 <br /> Isopropylbenzene 111 111 81-130 0 30 <br /> 1,1,2,2-Tetrachloroethane 91 93 69-121 1 30 <br /> Bromobenzene 106 107 83-121 1 30 <br /> 1.2.3-Trichloropropane 102 101 73-125 1 30 <br /> n-Propylbenzene 108 ILI 1 IS-133: <br /> 2-Chlorotoluene 105 107 78-121 1 30 <br /> 1,3,5-Trlmethylbenzene 110 109 77-124 0 30 <br /> 4-Chlorotoluene 105 105 81-123 0 30 <br /> _ tert_Butylbenzene 113 113 76-128 0 30 <br /> -� 1,2,4-Trimethylbenzene T --'107 108" -75-132 --- 0 30- <br /> sec-Butylbenzene — 111_ 112 73-129 0 30 <br /> p-Isopropyltoluene 114- - 115 72=128= 1-= - 30- <br /> 1,3-Dichlorobenzene 104 105 79-123 1 30 <br /> 1,4-Dichlorobenzene _ 102 103 81-122 1 30 <br /> n-Butylbenzene f05� "108-- f-66=131-----3- 30 - ---- - - - - �— -- - - <br /> 1,2-Dichlorobenzene 101 101 62-117 0 30 <br /> 1,2-Dibromo-3-chloropropane 95 94 53-125 1 30 M <br /> 1,2,4-Trichiorobenzene 113 115 60-121 3 30 <br /> Hexachlorobutadiene 120 119 44-140 1 30 <br /> Naphthalene 104 106 50-124 3 30 <br /> 1,2,3-Trichlorobenzene 110 109 58-122 1 30 <br /> Acetone 80 81 12-153 1 30 <br /> Carbon Disulfide 83 83 77-155 0 30 <br /> 2-Butanone 97 96 42-140 1 30 <br /> trans-1,3-Dichloropropene 98 96 75-117 2 30 <br /> Cis-1,3-Dichlorapropene 94 95 76-117 2 30 <br /> 4-Methyl-2-pentanone 89 90 S4-134 0 30 <br /> ` 2-Hexanone - - 82 82 44-140 -0 30 <br /> 2-Chloroethyl Vinyl Ether 0* 0* 1-172 0 T30 <br /> Freon 113 109 108 73-166 2 30 <br /> Batch number Z052151AA Sample number(s) 4S73920,4573923-4573925 <br /> Methyl Tertiary Butyl Ether 96 97 69-134 1 30 <br /> Benzene 107 106 83-128 1 30 <br /> Toluene 110 112 83-127 2 30 <br /> Ethylbenzene 107 109 82-129 2 30 _ <br /> Xylene (Total) 103 105 82-130 2 30 <br /> *-Outside of specification <br /> (1) 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 />