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(1) Sequoia <br />qco Analytical <br />V Iwo 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 />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 />Analyte <br />Batch <br />Number <br />Date Date surrogate <br />Prepared Analyzed Limits <br />tceportmg <br />Limit <br />Result <br />Units Notes* <br />D4-3.0 <br />P911088-04 <br />Soil <br />Ten -amyl methyl ether <br />9110066 <br />11/3/99 11/3/99 <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 />_ <br />_ " <br />0.00500 <br />0.0404 <br />" <br />Surrogate: Dtbromofluoromethane <br />80.0-120 <br />104 <br />% <br />Surrogate: 1,1-Dichlaroethane-d4 <br />80.0-120 <br />103 <br />Surrogate: Toluene -d8 <br />81.0-117 <br />105 <br />" <br />Surrogate: 4-Bromofluorobenzene <br />74.0-121 <br />107 <br />" <br />D54.5 <br />P911088-05 <br />Soil <br />Tert-amyl methyl ether <br />9110066 <br />11/4/99 11/4/99 <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 />0.00.50.0_ <br />_ _ _ ND <br />_ <br />Surrogate: Dibromofluoromethane <br />80.0-120 <br />101 <br />% <br />Surrogate: 1,2-Dichlaroethane-d4 <br />80.0-110 <br />97.6 <br />Surrogate: Toluene -d8 <br />81.0-117 <br />106 <br />Surrogate: 4-Bromofluorobenzene <br />74.0-121 <br />109 <br />D64.0 <br />P911088-06 <br />Soil <br />Tert-amyl methyl ether <br />9110066 <br />11/4/99 11/4/99 <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 />102 <br />% <br />Surrogate. 1,2-Dichlaroethane-d4 <br />80.0-120 <br />98.2 <br />Surrogate: Toluene -d8 <br />81.0-117 <br />107 <br />Surrogate: 4-Bromofluorobenzene <br />74.0-121 <br />108 <br />Sequoia Analytical - Petaluma 'Refer to end of report for test of notes and definitions. <br />Page 7 of 20 <br />