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6- E]Itecb Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> ' QUALITY CONTROL RESULTS SUMMARY <br /> METHOD:Gas Chromatography <br /> Laboratory Control Sample <br /> QC Batch#: WGBG2000922B Date Analyzed: 09/23/00 <br /> Matrix: Water Quality Control Sample: Blank Spike <br /> Units: pg/Liter <br /> ' PARAMETER Method# MB SA SR SP SP SPD SPO i RPD i QC LIMITS <br /> jig/Liter 1 pg/Liter pg/Liter jig/Liter % R µg/Liter€ %R RPD 1 %R <br /> 1Benzene 1 8020 1 <0.50 1 4.3 ND 1 4.3 1 99 3.9 1 91 1 8.4 1 25 1 67-115 <br /> 4Toluene 1 8020 <0.50 28.0 1 ND 31 110 <br /> ;Ethyl Benzene F 32 113 2.8 2S 82-i22 <br /> 1 1 1 f <br /> 1 8020 <0.50 1 6.8 1 ND 1 6.2 1 91 1 6.3 1 93 1 2.5 1 25 1 77-114 1 <br /> + <br /> ;Xylenes 1 8020 1 <0.50 26.0 1 ND 1 30 1 115 31 118 2.9 25 1 86-126 <br /> ;Gasoline <br /> 1 8015 1 <50.0 1 484 1 ND 1 555 1 115 1 556 1 115 0.3 1 25 1 74-122 1 <br /> Baan-TFT(S.S.)-PID 8020 120% 115% 114% 65-135 <br /> �aaa-TFT(S.S.)-FID i 8015 103% 104% 104% 65-135 <br /> Definition of Terms: <br /> na: Not Analyzed in QC batch <br /> MB: Method Blank <br /> SA: Spike Added <br /> SR: Sample Result <br /> 1 RPD(%): Duplicate Analysis-Relative Percent Difference <br /> SP: Spike Result <br /> SP(%R): Spike%Recovery <br /> SPD: Spike Duplicate Result <br /> SPD(%R): Spike%Recovery <br /> nc: Not Calculated <br /> 1 <br /> i <br />