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Sequoia 1455 McDowell Blvd North,Ste D <br /> Petaluma,CA 94954 <br /> (707)792-01365 <br /> Analytical <br /> FAx c7071 792-0342 <br /> • <br /> Cambria Environmental Project Equiva 10d Sampled 12/15/99 <br /> 270 Perkins St Project Number 2494 Fremont St, Stockton,Ca Received 12/16/99 <br /> Sonoma,CA 95476 Project Manager Bob Perlowski Reported 1/7/00 <br /> Volatile Organic Compounds by EPA Method 82608/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Linuts % Limit % Notes* <br /> Batch 9120588 Date_Prmared 12/23/99 Extraction Method EPA 5035 <br /> Blank 9120588-BLK1 <br /> Tert-amyl methyl ether 12/23/99 ND mg/kg 000500 <br /> Tert-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 Abromofluoromethane 00500 00515 800-120 103 <br /> Surrogate 1,2-Dichloroethane-d4 00500 00508 800-120 102 <br /> Surrogate Toluene-d8 00500 00508 810-117 102 <br /> Wit-buty <br /> 9120588-BLKZ <br /> myl methyl ether 12/27/99 ND mg/kg 000500 <br /> l 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 Dibromofluoromethane 00500 00515 " 800-120 103 <br /> Surrogate 12-Dichloroethane-d4 00500 00497 800-120 994 <br /> Surrogate Toluene-d8 00500 00500 810-117 100 <br /> i <br /> LCS 9120588-BSI <br /> Methyl tert-butyl ether 12/23/99 00500 00546 mg/kg 758-124 I09 <br /> Surrogate Abromofluoromethane 00500 00535 800-120 107 <br /> Surrogate 1,2-Dichloroethane-d4 00500 00532 800-120 106 <br /> Surrogate Toluene-d8 00500 00523 810-117 105 <br /> LCS 9120588-BS2 <br /> Methyl tert-butyl ether 12/27/99 00500 00544 mg/kg 758-124 109 <br /> Surrogate Dibromofluoromethane 00500 00536 800-120 107 <br /> Surrogate 1,2-Dichloroethane-d4 00500 00525 800-120 105 <br /> Surrogate Toluene-d8 00500 00506 810-117 101 <br /> Matrix Spike 9120588-MSI P912425-02 <br /> Methyl tert-butyl ether 12/27/99 00577 ND 00594 mgticg 759-124 103 <br /> Surrogate Dibromofluoromethane " 00577 00588 800-12o 102 <br /> sMuoja Analytical-Petaluma *Refer to end of report for text of notes and definitions - <br /> Page 12 of 16 <br />