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SIERRA LABORATORIES INC <br /> IT 1 Emcon Date Sampled: 3131100 <br /> 1433 North Market Blvd. Date Received: 414100 <br /> ' Sacramento,CA 95834 Date Prepared: 4/4100 <br /> Date Analyzed: 414100 <br /> Sierra Project No.: 0004-043 Analyst: SM <br /> ' Client Project LD: LISA Gasoline Station#65,Lodi,CA <br /> IT 4 792065/20A41-008.001 <br /> Sample Matrix: Water Report Date: 4110100 <br /> ' EPA METHOD 8020-BTEXIEPA METHOD 8015-Gasoline Range Hydrocarbons(C4-C12) <br /> (Purge&Trap) <br /> Concentration,ug/l <br /> Practical <br /> Client Sample No.: MW-1 MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 S-1 S-2 Quantitation <br /> Limit, <br /> Sierra Sample No.: 8030 8031 8032 8033 8034 8035 5036 8037 8038 8039 ug/l <br /> COMPOUNDS: <br /> ' Benzene ND ND ND 4.6 ND ND ND 42 370 130 0.5 <br /> Toluene ND ND 1.1 23 ND ND ND 8.1 16 61 0.5 <br /> thylbenzene ND ND ND 22 ND ND ND 7.6 84 92 0.5 <br /> Pka Xylenes ND ND ND 3.1 ND ND ND 13 150 200 0.5 <br /> E ND ND 28 9.9 ND ND 24 1400* 12000* 2900 2.0 <br /> Gasoline ND ND ND 880 ND ND ND 400 5300 2400 50 <br /> Dilution Factor L 1 1 L 1 1 I I , 10* 10, 50* 10 JQC Limits <br /> %Surrogate Recovery: 110 110 110 120 110 110 110 110 110 Hi) 70-125 <br /> Quality Assurance/Quality Control Data <br /> 1QC Sample ID: 000406-8144 <br /> ' LCS Spike Spike Dup QC QC <br /> Compounds %Rec. %Rec. %Rec. Limits RPD Limits <br /> Benzene 93 94 91 39-150 3.8 0-30 <br /> Toluene 96 97 93 46-148 3.7 0-30 <br /> thylbenzene 93 93 90 32-160 3.5 0-30 <br /> Gasoline 82 78 75 50-150 3.0 0-30 <br /> ND means Not Detected <br /> Reporting Limit(RL)=Practical Quantitation Limit(PQL)x Dilution Factor <br />