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Analysis Report <br /> b�Lancaster Laboratories Page 2 of 5 <br /> • Where 1 is a science <br /> Qugau� ty Control Summary <br /> Client Name: Chevron Products Company Group Number 791779 <br /> Reported 01/10/02 at 08.40 PM <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report Lcs LCSD LCS/LCSD <br /> Analysis Nance Result MDL Units %REC %REC L23mtts RPD RPD Nax <br /> Xylene (Total) N D 5 ug/l 115 103 89-124 10 30 <br /> Sample Matrix Quality Control <br /> MS MSD MS/MSD RPD BK6 DUP DUP Dup <br /> RPD <br /> Analysis Name %REC %REC Limuts RPD MAX Conc Cone: RPD Max <br /> Batch number 01363105101A Sample number(s) 3751662-3751670 <br /> Nitrite Nitrogen 99 90-110 N D N D 18* (1) 6 <br /> Batch number 01365A53 Sample number(s) 3751663-3751670 <br /> TPH-GRO - Waters 93 74-132 <br /> Batch number 01365A56 Sample number(s) 3751662 <br /> TPH-GRO - Waters 92 74-132 <br /> Batch number 02002011112B Sample number(s) 3751662-3751670 <br /> Total Organic Carbon 99 73-129 5 7 5 8 3* (1) 1 <br /> tch number 020030006A Sample number(s) 3751662-3751670 <br /> thanol (by Direct In3ection) 104 113 78-114 8 20 <br /> Batch number 020031848003 Sample number(s) 3751662-3751670 <br /> Manganese 103 102 84-116 1 20 0 0414 0 0412 0 (1) 20 <br /> Batch number 02003A55 Sample number(s) 3751671 <br /> TPH-GRO - Waters 105 74-132 <br /> Batch number 02007020201A Sample number(s) 3751662-3751670 <br /> Alkalinity to pH 8 3 N D N D 0 (1) 3 <br /> Alkalinity to pH 4 5 100 97 50-137 2 3 115 117 2 3 <br /> Batch number 02007106101A Sample numbers) 3751662-3751667 <br /> Nitrate Nitrogen 98 90-110 N D N D 0 (1) 6 <br /> Batch number 02007106101B Sample number(s) 3751668-3751670 <br /> Nitrate Nitrogen 97 90-110 N D N D 0 (1) 6 <br /> Batch number 02009112501A Sample number(s) 3751662-3751670 <br /> Sulfate (turbidimetric) 98 96 77-114 1 4 590 590 0 4 <br /> Batch number 02009155301A Sample numbers) 3751662-3751670 <br /> Chemical Oxygen Demand 89 99 61-132 7* 5 59 1 58 3 1 8 <br /> Batch number U013651AA Sample number(s) 3751662-3751671 <br /> Ethanol 110 70-130 <br /> Methyl t-butyl ether 100 69-134 <br /> di-Isopropyl ether 108 75-128 <br /> Ethyl t-butyl ether 106 73-123 <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 /> PO Box 12425 <br /> Lancaster,PA 17605-2425 <br /> 717-656-2300 Fax 717-656-2681 2216 Rev 9/11/00 <br />