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1 <br /> 419 5tnkAvenue 95 8 <br /> l <br /> � Sequoia Sacramento <br /> 1, 9581enio C 4 <br /> (916)921 9600 <br /> ieAnalytical www sequoialabscoOm <br /> ' ATC Associates Inc -Modesto Project Pacific Coast Rec <br /> 1117 Lone Palm Ave Ste B Project Number 54 16393 0002 Reported <br /> Modesto CA,95351 Project Manager' Drew Van Allen 01/02/02 12 08 <br /> ' Volatile Organic Compounds by EPA Method 8260B- Quality Control <br /> Sequoia Analytical -Walnut Creek <br /> ' Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1L20012-EPA 5030B(PM <br /> Blank(1L20012-BLK1) Prepared&Analyzed 12120/0_1 -_ <br /> Ethanol ND 500 mg/m'Air <br />' tett-Butyl alcohol ND 50 1 <br /> Methyl tert-butyl ether(MTBE) ND 2 0 <br /> Dt-tsopropyl ether ND 20 <br /> Ethyl tert-butyl ether ND 2 0 " <br /> Cert-Amyl methyl ether ND 20 <br /> l 2 Dichloroethane ND 20 <br /> Ethylene dibromide ND 20 " <br /> Surrogate Dibromofluoromethane .512 „ Soo 102 50-150 <br /> Surrogate 1 2-Dichloroethane-d4 S66 Soo 113 50-150 <br /> LCS(1L20012-BSI) Prepared&Analyzed 12/20/01 <br /> Methyl tert-butyl ether(MTBE) 41 5 2 0 mg/ml Air 500 83 70-130 <br /> Surrogate Dibromof7uoromethane 502 Soo 100 50-150 <br /> Surrogate I 2-Dichloroethane-d4 561 500 112 50-150 <br />' LCS Dup f 1L20012-BSDI) _ Prepared&Analyzed 12/20/01 <br /> Methyl tert-butyl ether(MTBE) 45 2 2 0 mglm'Air 50 0 90 70-130 9 200 <br /> Surrogate Dibromofluoromethane 508 500 102 50-1.50 <br /> Surrogate 12-Dichloraethane-d4 529 50 0 106 50-150 - <br /> 1 <br />' Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chain <br /> of custody document This analytical report must be reproduccd in its entirety <br /> Page Page 7 of 8 <br /> I <br />