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1455 McDowell Blvd.North,Ste.DSequois <br /> Petaluma,CA 94954 <br /> (707)792-1865 <br /> Analytical wFAX(707) 42 <br /> ww.sequoialabs.cabs.com <br /> Cambria Environmental Project: Equiva Sampled: 7/31/00 <br /> 270 Perkins St. Project Number: 7700 Moreland Ct,Stockton Received: 7/31/00 <br /> Sonoma,CA 95476 Project Manager: Scott Lewis Reported: 8/15/00 <br /> Volatile Organic Compounds by EPA Method 8260B/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 0080027 Date Prepared: 8/1/00 Extraction Method: EPA 5030 soils <br /> Blank 0080027-BLKI <br /> Tert-amyl methyl ether 8/1/00 ND ug/kg 5.00 <br /> Tert-butyl alcohol ND 100 <br /> Di-isopropyl ether ND 5.00 <br /> Ethanol ND 200 <br /> Ethyl tert-butyl ether ND 5.00 <br /> Methyl tert-butyl ether ND 5.00 <br /> Surrogate: Dibromofluoromethane 50.0 48.9 80.0-120 97.8 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 49.1 80.0-120 98.2 <br /> Surrogate: Toluene-d8 50.0 45.5 81.0-117 91.0 <br /> Blank 0080027-BLK4 <br /> Tert-amyl methyl ether 8/7/00 ND ug/kg 5.00 <br /> Tert-butyl alcohol ND 100 <br /> Di-isopropyl ether ND 5.00 <br /> Ethanol ND 200 <br /> Ethyl tert-butyl ether ND 5.00 <br /> Methyl tert-butyl ether ND 5.00 <br /> Surrogate: Dibromofluoromethane 50.0 53.6 80.0-120 107 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 43.7 80.0-120 87.4 <br /> Surrogate: Toluene-d8 50.0 50.5 81.0-117 101 <br /> LCS 0080027-BS1 <br /> Methyl tert-butyl ether 8/1/00 50.0 45.6 ug/kg 75.8-124 91.2 <br /> Surrogate: Dibromofluoromethane 1150.0 48.8 80.0-120 97.6 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 46.0 80.0-120 92.0 <br /> Surrogate: Toluene-d8 50.0 51.9 81.0-117 106 <br /> LCS 0080027-BS4 <br /> Methyl tert-butyl ether 8/7/00 50.0 47.8 ug/kg 75.8-124 95.6 <br /> Surrogate: Dibromofluoromethane 50.0 53.4 80.0-120 107 <br /> Surrogate: 1,2-Dichloroethane-d4 50.0 43.8 80.0-120 87.6 <br /> Surrogate: Toluene-d8 50.0 51.1 81.0-117 102 <br /> Matrix Spike 0080027-MSI P007538-01 <br /> Methyl tert-butyl ether 8/1/00 125 ND 143 ug/kg 75.8-124 114 <br /> Surrogate: Dibromofluoromethane it125 130 80.0-120 104 <br /> Surrogate: 1,2-Dichloroethane-d4 125 135 80.0-120 108 <br /> Surrogate: Toluene-d8 125 101 81.0-117 80.8 1 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions. <br /> Page 5 of 7 <br /> g�� <br />