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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wiget lane Walnut Creek,CA 94598 (915)988-9600 FAX(925)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916) 921-0100 <br /> �� 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 707 792-1865 FAX 707)792-0342 <br /> ATC Associates,Inc. Project: SUSD/Corporation Yard Sampled: 2/23199 to 2/24/99 <br /> 1 1 17 Lone Palm Ave.,Suite B Project Number: na Received: 3/1199 <br /> Modesto,CA 95351 Project Manager: Tam Lutterman Reported: 3/15/99 <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 /> SUSDICY-SB6-15.5 P903097-12 Soil <br /> Tert-amyl methyl ether 9030118 3/8/99 3/8/99 5.00 ND ug/kg <br /> Tert-butyl alcohol 100 ND " <br /> Di-isopropyl ether 5.00 ND " <br /> 1,2-Dibromoethane(EDB) 5.00 ND " <br /> 1,2-Dichloroethane 5"00 ND " <br /> Ethanol 200 ND <br /> Ethyl tent-butyl ether " 5.00 ND " <br /> Methyl tert-butyl ether 5.00 ND <br /> Surrogate: Dibromofluoromethane 80.0-120 109 <br /> Surrogate: 1,2-Diehloroethane-d4 i% 80.0-120 127 4 <br /> Surrogate: Toluene-d8 81.0-117 96.0 <br /> Surrogate: 4-Bromofluorobenzene 74.0-121 112 <br /> 'SDICY-SB6-20.5 P903097-13 Soil <br /> t-amyl methyl ether 9030118 3/8/99 3/8/99 5.00 ND ug/kg <br /> Tert-butyl alcohol 100 ND " <br /> Di-isopropyl ether 5.00 ND " <br /> 1 1,2-Dibromoethane(EDB) 5.00 ND " <br /> i• 1,2-Dichloroethane 5.00 ND <br /> E Ethanol 200 ND " <br /> Ethyl tert-butyl ether 5.00 ND " <br /> Methyl tert-butyl ether 5.00 ND " <br /> Surrogate: Dibromofluoromethane 80.0-120 108 <br /> Surrogate.• 1,2-Dichloroethane-d4 80.0-120 121 4 <br /> Surrogate: Toluene-d8 81.0-117 101 'I <br /> Surrogate: 4-Bromofluorobenzene 74.0-121 111 <br /> SUSDICY-S]36-35.5 P903097-14 Soil <br /> Tert-amyl methyl ether 9030118 3/8/99 3/8/99 5.00 ND ug/kg <br /> „ „ <br /> Tert-butyl alcohol 100 ND <br /> Di-isopropyl ether 5.00 ND " <br /> 1,2-Dibromoethane(EDB) " 5.00 ND <br /> 1,2-Dichloroethane 5.00 ND <br /> Ethanol 200 ND <br /> „ „ <br /> ' Ethyl tert-butyl ether 5.00 ND <br /> Methyl tert-butyl ether 5.00 ND " <br /> Surrogate: Dibromofluoromethane 11 ol 80"0-120 112 <br /> Surrogate: 1,2-Dichloroethane-d4 80.0-120 126 " 4 <br /> Surrogate: Toluene-d8 81.0-117 101 " I <br /> Surrogate: 4-Bromofluorobenzene " " 74.0-121 115 <br /> k <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions. <br /> I <br /> Page 12 of 28 <br />