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Sequoia <br />Analytical <br />1 0 1455 McDowell Blvd. North, Ste. D <br />Petaluma, CA 94954 <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 />>-70 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 />Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br />D10-3.0 <br />P911088-10 <br />Soil <br />Tert-amyl methyl ether <br />9110066 11/3/99 11/3/99 <br />0.00500 <br />ND <br />mg/kg <br />Tert-butyl alcohol <br />0.100 <br />ND <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 />108 <br />Surrogate: 1,2-Dichloroethane-d4 <br />80.0-120 <br />109 <br />Surrogate: Toluene -d8 <br />81.0-117 <br />112 <br />Surrogate: 4-Bromofluorobenzene <br />74 0-121 <br />! l l <br />Como of SP1 -(A -D) <br />P911088-15 <br />Soil <br />Tert-amyl methyl ether <br />9110066 11/4/99 11/4/99 <br />0.00500 <br />ND <br />mg/kg <br />Benzene <br />0.00500 <br />ND <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 />Ethanol <br />0.200 <br />ND <br />" <br />Ethylbenzene <br />0.00500 <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 />Toluene <br />0.00500 <br />ND <br />" <br />Xylenes (total) <br />0.00500 <br />ND__ <br />Surrogate. Dibromofluoromethane <br />80.0-120 <br />/07 <br />% <br />Surrogate: /,1-Dichloroethane-d4 <br />80.0-/20 <br />106 <br />" <br />Surrogate: Toluene -d8 <br />81.0-117 <br />Surrogate: 4-Bromofluorobenzene <br />74.0-121 <br />1/7 <br />" <br />Como of SP2-(A-D) <br />P911088-20 <br />Soil <br />Tert-amyl methyl ether <br />9110066 1114/99 11/4/99 <br />0.00500 <br />ND <br />mg/kg <br />Benzene <br />" <br />0.00500 <br />ND <br />" <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 />Ethylbenzene <br />0.00500 <br />ND <br />" <br />Ethyl tert-butyl ether <br />0.00500 <br />ND <br />" <br />Sequoia Analytical - Petaluma *Refer to end of report for test of notes and definitions. <br />Page 9 of 20 <br />