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4D Sequoia <br />wo Analytical <br />1455 McDowell Blvd. North, Ste. D <br />"J Petaluma. CAr949y1 <br />(707)792-1865 <br />FAX (707) 792-0342 <br />2: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 />ionoma, 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 />Snalyte Number Prepared Analyzed Limits Limit Result Units Notes* <br />D7-3.0 P911088-07 <br />Tert-amyl methyl ether 9110066 11/3/99 11/3/99 <br />Tert-butyl alcohol " <br />Di -isopropyl ether " <br />1,2-Dibromoethane (EDB) " <br />1,2-Dichloroethane <br />Ethanol " <br />Ethyl tert-butyl ether " <br />Methyl tert-butyl ether <br />Surrogate. Dibromofluoromethane <br />Surrogate: 1, 2-Dichloroethane-d4 <br />Surrogate. Toluene -0 " <br />Surrogate. 4-Bromofluorobenzene <br />D8=4.0 <br />Tert-amyl methyl ether <br />Tert-butyl alcohol <br />Di -isopropyl ether <br />1,2-Dibromoethane (EDB) <br />1,2-Dichloroethane <br />Ethanol <br />Ethyl tert-butyl ether <br />Methyl tert-butyl ether <br />Surrogate: Dibromofluoromethane <br />Surrogate. 1,1-Dichloroethane-d4 <br />Surrogate. Toluene -d8 <br />Surrogate: 4-Bromofluorobenzene <br />D9-3.0 <br />Tert-amyl methyl ether <br />Tert-butyl alcohol <br />Di -isopropyl ether <br />1,2-Dibromoethane (EDB) <br />1,2-Dichloroethane <br />Ethanol <br />Ethyl tert-butyl ether <br />Methyl ten -butyl ether <br />Surrogate. Dibromofluoromethane <br />Surrogate: 1,2-Dichloroethane-d4 <br />Surrogate: Toluene -d8 <br />Surrogate. 4-Bromofluorobenzene <br />} <br />80.0-110 <br />80.0-120 <br />81.0-117 <br />74.0-121 <br />P911088-08 <br />0.00500 <br />0.100 <br />0.00500 <br />0.00500 <br />0.00500 <br />0.200 <br />0.00500 <br />0.00500 <br />9110066 11/3/99 11/3/99 <br />0.00500 <br />" " <br />0.100 <br />" <br />0.00500 <br />0.00500 <br />" <br />0.00500 <br />" <br />0.200 <br />" <br />0.00500 <br />" <br />0.00500 <br />" 80.0-110 <br />" 80.0-120 <br />81.0-117 <br />74.0-121 <br />P911088-09 <br />9110066 11/3/99 11/3/99 0.00500 <br />" " 0.100 <br />" 0.00500 <br />" 0.00500 <br />0.00500 <br />" 0.200 <br />" 0.00500 <br />0.00500 <br />80.0-120 <br />80.0-120 <br />81.0-117 <br />740121 <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />109 <br />109 <br />//1 <br />108 <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />108 <br />105 <br />109 <br />108 <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />ND <br />106 <br />105 <br />108 <br />103 <br />Soil <br />mg/kg <br />% <br />Soil <br />mg/kg <br />Soil <br />mg/kg <br />Sequoia Analytical - Petaluma *Refer to end of report for text of )rotes and definitions. <br />Page 8 of 20 <br />