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SIERRA ANALYTICAL <br /> IT /Emcon ELAP No.: 2320 <br /> 1433 North Market Blvd. Date Sampled: 03/31/00 <br /> Sacramento, CA 95834 Date Received: 04/04/00 <br /> Date Prepared: 04/05/00 <br /> Date Analyzed: 04/05/00 <br /> Sierra Project No.: 0004-043 Analyst: WCH <br /> Client Project ID: USA Gasoline Station 965, Lodi, CA IT# 792065 120A41-008.001 <br /> Sample Matrix: Water Report Date: 04/10/00 <br /> Oxygenated Fuel Additives(GC/MS) <br /> Preparation Method: Purge&Trap Concentrator(EPA Method 5030) <br /> Analysis Method: EPA Method 82608 <br /> 1 <br /> Client Sample No.: MW-6 MW-7 Mw-8 S I S-z <br /> Practical <br /> Quantitation Units <br /> Limit <br /> Sierra Sample No.: 8035 8036 8037 8038 8039 <br /> Analytes: <br /> ' MTBE ND 19 1200 12000 2200 0.5 µg/L <br /> RIPE ND ND ND ND ND 5.0 µg/L <br /> Ethanol ND ND ND ND ND 50 µg/L <br /> ETBE ND ND ND ND ND 5.0 µg/L <br /> TAME ND ND ND ND ND 5.0 µg/L <br /> TBA ND ND 54 2400 ND 5.0 µg/L <br /> Dilution Factor I I 10 100 50 QC Limits - <br /> Surrogate Recovery: <br /> Dibromotluoromethane 104 101 103 105 85 80-120 <br /> Toluene-d8 106 106 106 106 103 81-117 % <br /> 4-Bromotluorobenzene 97 95 85 1 90 1 102 74-121 <br /> ruality Assurance 7 Quality ControlData <br /> FQC Reference No.: 000405-BL <br /> pie NplKe LPUP. IVIKU - D <br /> Analytes: o 0 0 RPD Limits <br /> /o Ree. C Limits /o Rec. /o Rec. QC Limits LQC <br /> MTBE 4 80 - 120 8 - 0 �. -3 <br /> ND means Not Detected <br /> Reporting Limit(RL)=Practical Quantitation Limit(PQL)x Dilution Factor <br /> r _ <br /> r <br /> 1 <br /> r <br />