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Sequoia <br />Analytical <br />Gettler-Ryan/Geostrategies(1) <br />6747 Sierra Court, Suite 7 <br />Dublin, CA 94568 <br />Project Gettler-Kyarvurievront,z) <br />Project Number Chevron 9-5775301 Kettleman Lane <br />)rmect Manager Scott Polston <br />1551 Industrial Road <br />San Carlos CA 94070-4111 <br />(650) 232-9600 <br />FAX (650) 232-9612 <br />www sequoialabs corn <br />Sampled 813100 <br />Received 8/4/00 <br />Rcoorted 817100 <br />Volatile Organic Oxygenated Compounds by EPA Method 8260$IQuahty Control <br />Sequoia Analytical - San Carlos <br />• <br />Sequoia Analytical -San Carlos *Refer to end of report for text of notes and definitions <br />Page 8 of 9 <br />Date Spike <br />Sample <br />QC <br />Reporting Limit Recov RPD RPD <br />lAnalyte <br />Analyzed Level <br />Result <br />Result <br />Units <br />Recov Limits <br />% Limit %Dotes* <br />Batch 0080012 <br />Date Prepared 812!00 <br />Extraction Method EPA 5030E PIT <br />Blank <br />0080012-BLKI <br />Ethanol <br />812100 <br />ND <br />ug/l <br />1000 <br />Tert-butyl alcohol <br />ND <br />100 <br />Methyl tert-butyl ether <br />" <br />ND <br />200 <br />Di -isopropyl ether <br />ND <br />200 <br />Ethyl tert-butyl ether <br />ND <br />200 <br />Tert-amyl methyl ether <br />ND <br />200 <br />760-114 <br />111 <br />Surrogate 1,2-Dichloroethane-d4 <br />500 <br />556 <br />Blank <br />0080012-BLK2 <br />Ethanol <br />8/4100 <br />ND <br />1000 <br />Tent -butyl alcohol <br />„ <br />ND <br />It <br />" <br />100 <br />ethyl tert-butyl ether <br />ND <br />�� <br />200 <br />isopropyl ether <br />�' <br />ND <br />200 <br />yl tert-butyl ether <br />ND <br />200 <br />Tert-amyl methyl ether <br />ND <br />2.00 <br />Surrogate 12-Dichloroethane-d4 <br />500 <br />501 <br />760-114 <br />100 <br />LCS <br />0080012-BS1 <br />Methyl tert-butyl ether <br />812/00 Soo <br />55 6 <br />ug/1 <br />70 0-130 <br />111 <br />Surrogate 12-Dichloroethane-d4 <br />500 <br />552 <br />76 0-114 <br />110 <br />LCS <br />0080012-BS2 <br />Methyl tert-butyl ether <br />8/4100 500 <br />42 6 <br />ug/1 <br />70 0-130 <br />85 2 <br />Surrogate 12-Dichlomethane-d4 <br />to 50 0 <br />475 <br />76 0-114 <br />95 0 <br />Matrix Spike <br />0080012-MS1 L007235-02 <br />Methyl tert-butyl ether <br />8/2/00 500 <br />ND <br />520 <br />ug/1 <br />b0 0-140 <br />104 <br />Surrogate 12-Dichloroethane-d4 <br />11Soo <br />536 <br />760-114 <br />107 <br />Matrix Spike Duo <br />0080012-MSD1 L007235-02 <br />ND <br />520 <br />ug/1 <br />60 0-140 <br />104 25 0 0 <br />Methyl tent -butyl ether <br />8/2100 500 <br />530 <br />" <br />760-114 <br />106 <br />Surrogate 12-Dtchloraethane-d4 <br />" 500 <br />• <br />Sequoia Analytical -San Carlos *Refer to end of report for text of notes and definitions <br />Page 8 of 9 <br />