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1455 McDowell Blvd North,Ste D <br /> Sequoia Petaluma,CA-94954 <br /> (707)792-1865 <br /> Analytical wtadalabs cPAX(707) 42 <br /> www sequoom <br /> Cambria Environmental Project Equiva 5-7d <br /> 270 Perkins St Project Number 440 West Charter Way,Stockton Reported <br /> Sonoma CA,95476 Project Manager Aubrey Cool 12/12/00 07 37 <br /> Volatile Organic Compounds by EPA Method 8260B - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Lim1ts RPD Limit Notes <br /> Batch 0110272-EPA 5030 soils <br /> Blank(0110272-BLK1) Prepared&Analyzed 11/09/00 <br /> Tert-amyl methyl ether ND 000500 mg/kg <br /> Teri-butyl alcohol ND 0 100 " <br /> Di-isopropyl ether ND 000500 " <br /> 1,2-Dibromoethane(EDB) ND 000500 " <br /> 1,2-Dichloroethane ND 000500 " <br /> Ethanol ND 0200 " <br /> Ethyl tert-butyl ether ND 000500 " <br /> Methyl tert-butyl ether ND 000500 " <br /> Surrogate Dibromofluoromerhane 00450 00450 100 80-120 <br /> Surrogate 1 2-Dichloroethane-d4 00407 00450 904 80-120 <br /> Surrogate Toluene-d8 00451 00450 100 81-117 <br /> Blank(0110272-BLK_2)_ Prepared&Analyzed 11/14/00 - <br /> Tert-amyl methyi ether ND 000500 mg/kg <br /> Tert-butyl alcohol ND 0 100 " <br /> Di-isopropyl ether ND 000500 " <br /> 1,2-Dtbromcethane(EDB) ND 000500 " <br /> 1,2-Dichloroethane ND 000500 " <br /> Ethanol ND 0200 " <br /> Ethyl tert-butyl ether ND 000500 " <br /> Methyl tent-butyl ether ,_ __ ND 000500 <br /> Surrogate DibromoJluoromethane 00427 00450 949 80-110 <br /> Surrogate 12-Dichloroethane-d4 00369 " 00450 820 80-110 <br /> Surrogate Toluene-d8 00450 00450 100 81-117 <br /> Blank(0110272-BLK3) Prepared&Analyzed 11/14/00 <br /> Tert-amyl methyl ether ND 000500 mg/kg <br /> Tert-butyl alcohol ND 0 100 " <br /> Di-isopropyl ether ND 000500 " <br /> 1,2-Dtbromcethane(EDB) ND 000500 " <br /> 1,2-Dtchloroethane ND 000500 " <br /> Ethanol ND 0200 " <br /> Ethyl tert-butyl ether ND 000500 " <br /> Methyl tent-butyl ether ND 000500 " <br /> Surrogate DibromoJluoromethane 00459 00450 102 80-120 <br /> Surrogate 12-Dtchloroethane-d4 00423 00450 940 80-120 <br /> Sequoia Analytical-Petalunia The results in this report apply to the samples analyzed in accordance with the chap <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 29 of 41 <br />