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ID Sequoia <br />wo Analytical <br />1455 McDowell Blvd. North, Ste. D <br />-� Petaluma, CA,949�4 <br />(707)792-1865 <br />FAX (707) 792-0342 <br />�ambria Environmental <br />Project: <br />TFD 4B-28 <br />Sampled: <br />11/2/99 <br />270 Perkins St. <br />Project Number: <br />3011 West Benjamin Holt Dr. <br />Received: <br />11/3/99 <br />Sonoma, CA 95476 <br />Project Manager: <br />Bob Perlowski <br />Reported: <br />11/9/99 <br />Volatile Organic Compounds by EPA Method 8260B <br />Sequoia Analytical - Petaluma <br />Batch Date Date Surrogate Reporting <br />4nalyte Number Prepared Analyzed Limits Limit Result Units Notes* <br />D1-1.0 <br />P911088-01 <br />Soil <br />Tert-amyl methyl ether <br />9110066 11/3/99 <br />II/3/99 <br />0.00500 <br />ND <br />mg/kg <br />Tert-butyl alcohol <br />0.100 <br />ND <br />" <br />Di -isopropyl ether <br />0.00500 <br />ND <br />" <br />1.2-Dibromoethane (EDB) <br />0.00500 <br />ND <br />" <br />1,2-Dichloroethane <br />0.00500 <br />ND <br />" <br />Ethanol <br />0.200 <br />ND <br />" <br />Ethyl tert-butyl ether <br />0.00500 <br />ND <br />" <br />Methyl tert-butyl ether <br />0.00500 <br />ND <br />" <br />Surrogate.' Dibromofluoromethane <br />80.0-120 <br />98.4 <br />% <br />Surrogate: 1,1-Dichloroethane-d4 <br />80.0-120 <br />99.4 <br />" <br />Surrogate: Toluene -d8 <br />81.0-117 <br />97.8 <br />Surrogate: 4-Bromofluorobenzene <br />74.0-121 <br />99.2 <br />D2D2=2.5 .. <br />P911088-02 <br />Soil <br />Tert-amyl methyl ether <br />9110066 11/3/99 <br />11/3/99 <br />0.00500 <br />ND <br />mg/kg <br />Tert-butyl alcohol <br />" <br />0.100 <br />ND <br />" <br />Di -isopropyl ether <br />It <br />0.00500 <br />ND <br />" <br />1,2-Dibromoethane (EDB) <br />0.00500 <br />ND <br />" <br />1,2-Dichloroethane <br />0.00500 <br />ND <br />" <br />Ethanol <br />0.200 <br />ND <br />" <br />Ethyl cert -butyl ether <br />0.00500 <br />ND <br />" <br />Methyl tert-butyl ether <br />0.00500 <br />ND <br />" <br />Surrogate: Dibromofluoromethane <br />80.0-120 <br />116 <br />% <br />Surrogate: 1,1-Dichloroethane-d4 <br />80.0-120 <br />115 <br />" <br />Surrogate: Toluene -d8 <br />81.0-117 <br />117 <br />Surrogate: 4-Bromofluorobenzene <br />74.0-121 <br />112 <br />D3-3.0 <br />P911088-03 <br />Soil <br />Tert-amyl methyl ether <br />9110066 11/3/99 <br />11/3/99 <br />0.00500 <br />ND <br />mg/kg <br />Ten -butyl alcohol <br />" <br />0.100 <br />ND <br />" <br />Di -isopropyl ether <br />0.00500 <br />ND <br />" <br />1,2-Dibromoethane(EDB) <br />0.00500 <br />ND <br />" <br />1,2-Dichloroethane <br />0.00500 <br />ND <br />" <br />Ethanol <br />0.200 <br />ND <br />" <br />Ethyltert-butylether <br />0.00500 <br />ND <br />" <br />Methyl tert-butyl ether <br />0.00500 <br />ND <br />" <br />Surrogate: Dibromofluoromethane <br />80.0-120 <br />108 <br />It", <br />Surrogate: 1,2-Dichloroethane-d4 <br />80.0-120 <br />108 <br />Surrogate: Toluene -d8 <br />81.0-117 <br />72.8 <br />If <br />Surrogate: 4-Bromofluorobenzene <br />" " <br />74.0-121 <br />106 <br />'Refer to end of report for text of notes and definitions. <br />Page 6 of 20 <br />