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Analysis • • <br /> Lancaster Laboratories Page 2 of 5 <br /> • Whe TUU aZM%firol Summary <br /> Client Name Chevron Products Company Group Number 794719 <br /> Reported 02/06/02 at 09 06 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD <br /> Ana�tsas Name Result MDL Un7.ts %REC %REC Limits RPD RPD Mas <br /> Xylene (Total) N D 5 ug/l 99 89-124 <br /> Batch number V020281AA Sample number(s) 3764822,3764828-3764831 <br /> Ethanol N D 50 ug/l 105 44-139 <br /> Methyl t-butyl ether N D 5 ug/l 96 77-127 <br /> da-Isopropyl ether N D 5 ug/l 98 74-125 - <br /> Ethyl t-butyl ether N D 5 ug/l 97 74-120 <br /> t-Amyl methyl ether N D 5 ug/l 98 71-114 <br /> t-Butyl alcohol N D 5 ug/l 117 59-139 <br /> Benzene N D 5 ug/l 99 84-120 <br /> 1,2-Dichloroethane N D 5 ug/1 96 77-132 <br /> Toluene N D 5 ug/l 98 86-123 <br /> 1,2-Dibromoethane N D 5 ug/l 101 84-119 <br /> Ethylbenzene N D 5 ug/l 98 88-124 <br /> Xylene (Total) N D 5 ug/l 100 89-124 <br /> Sample Matrix Quality Control. <br /> MS MSD MS/MSD RPD BKG DUP DUP DUP <br /> RPD <br /> eas Name !REC $REC Lamps RPD MAX Conc Conc RPD Max <br /> ch number 02026105101A Sample number(s) 3764822-3764830 <br /> Nitrate Nitrogen 102 90-110 N D N D 0 (1) 20 <br /> Batch number 020280023A Sample number(s) 3764822-3764825 <br /> Methanol (by Direct Infection) 100 100 78-114 0 20 <br /> Batch number 02028011111A Sample numbers) 3764822 <br /> Total Organic Carbon 41* 73-128 1 46 1 50 3 (1) 3 <br /> Batch number 020280111118 Sample number(s) 3764823-3764829 <br /> Total Organic Carbon 96 73-128 5 9 5 9 1 (1) 3 <br /> Batch number 02028011112A Sample number(s) 3764830 <br /> Total Organic Carbon 95 73-128 2 5 2 5 1 (1) 3 <br /> Batch number 02028155301A Sample number(s) 3764822-3764830 <br /> Chemical Oxygen Demand 94 94 61-132 0 5 53 9 53 9 0 8 <br /> Batch number 020281848001 Sample number(s) 3764822-3764830 <br /> Manganese 99 100 84-116 1 20 0 0077 0 0076 2 (1) 20 <br /> Batch number 020290025A Sample numbers) 3764826-3764830 <br /> Methanol (by Direct In3ection) 108 108 78-114 0 20 <br /> Batch number 02029020202A Sample number(s) 3764822-3764830 <br /> Alkalinity to pH 8 3 N D N D 0 (1) 3 <br /> Alkalinity to pH 4 5 103 101 50-137 1 3 313 320 2 3 <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 /> M E M B E R 2425 New Holland Pike <br /> ® PQ Box 12425 <br /> Lancaster PA 17605-2425 <br /> 717 656-2300 Fax 717-656-2681 2216 Rev 9/11/00 <br />