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a <br /> Lancaster Laboratories Page 3 of <br /> E Where quality rs a science <br /> Quality Control Summary <br /> Client Name. Chevron Products Company Group Number 797430 <br /> Reported 03/04/02 at 04 :09 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Analysxs_Name Result MDL Units %REC %REC Limits RPD RPD Max <br /> Carbon Tetrachloride N D 1 ug/1 84 77-130 <br /> 1,2-Dichloroethane N D 2 ug/1 97 77-132 <br /> Trichloroethene N D 1 u9/1 95 87-117 <br /> 1,2-Dichloropropane N D 1 ug/l 94 83-123 <br /> Bromodrehloromethane N D 1 ug/l 85 83-121 <br /> 1,1,2-Trichloroethane N D 1 ug/l 94 86-120 <br /> Tetrachloroethene N D 1 ug/l 102 79-136 <br /> Dibromochloromethane N D 1 ug/l 80 76-119 <br /> Chlorobenzene N D 1 ug/l 96 87-121 <br /> Bromoform N D 1 ug/1 75 69-121 <br /> 1,1,2,2-Tetrachloroethane N D 1 u9/1 90 72-119 <br /> 1,3-Dichlorobenzene N D 1 ug/l 98 82-119 <br /> 1,4-Dichlorobenzene N D 1 ug/l 94 84-116 <br /> 1,2-Dichlorobenzene N D 1 ug/l 94 84-117 <br /> trans-1,3-Dichloropropene N D I ug/l 90 79-120 <br /> cis-1,3-Dichloropropene N D 1 ug/l 92 78-114 <br /> Freon 113 N D 2 ug/l 102 73-139 <br /> Batch number P020511AE Sample numbers) 3775768 <br /> Methyl t-butyl ether N D 2 ug/l 98 77-127 <br /> Sample Matra.x Quality Control <br /> MS MSD MS/MSD RPD ERG DUP DUP DUP <br /> RPD <br />- - --Analysis-Name "- -%REC""-%REC—Limits RPD—MAX—Conc Cone RPD -- Marc <br /> Batch number 020511848005 Sample number(s) 3775769 <br /> Cadmium 99 100 78-121 1 20 N D N D 0 (1) 20 <br /> Chromium 101 100 80-119 0 20 N D N D 0 (1) 20 <br /> Lead 100 100 75-125 0 20 N D N D 0 (1) 20 <br /> Nickel 100 100 80-117 0 20 0 0079 0 0080 1 (1) 20 <br /> Zinc 97 98 75-125 1 20 0 0083 0 0068 19 (1) 20 <br /> Batch number 02051A55 Sample number(5) 3775767-3775768,3775170-3775771 <br /> Benzene 106 106 77-131 0 30 <br /> Toluene 114 113 80--128 1 30 <br /> Ethylbenzene 119 118 76-132 1 30 <br /> Total Xylenes 118 116 76-132 1 30 <br /> Methyl tert-Butyl Ether 106 111 61-144 4 30 <br /> TPH-GRO - Waters 95 74-132 <br /> Batch number 02052112601A -Sample number(s) 3775768 - <br /> TRPH 418 1 1.00 0 63 46* (1) 34 <br /> Batch number P020511AC Sample number(s) 3775768 <br /> Chloromethane 101 108 42-125 6 30 <br /> Vinyl Chloride 109 116 54-133 6 30 <br /> Bromomethane 71 76 36-133 7 30 <br /> Chloroethane 80 84 55-129 5 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 /> Lancaster Laboratories !nc <br /> M E Ni $ E R 2425 New Holland Pike <br /> PO Box 12425 <br /> d Lancaster PA 17605 2425 <br /> 717 656 2300 Fax 717 656 2681 2216 Rev 9111/00 <br />