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ID Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wlget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento.CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical <br /> V, 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-t865 FAX(707)792-0342 <br /> +� ATC Associates,Inc. Project: SUSD/Corporation Yard Sampled: 2/23/99 to 2/24/99 <br /> 1117 Lone Palm Ave.,Suite B Project Number: na Received: 3/l/99 <br /> Modesto,CA 95351 Project Manager: Tom Letterman Reported: 3/15/99 <br /> rL.. <br /> Volatile Organic Compounds by EPA Method 82608 <br /> Sequoia Analytical-Petaluma <br /> �" Batch Date Date Surrogate Reporting <br /> Anal e Number Prepared Analyzed Limits Limit Result Units Notes' <br /> SUSD/CY-SB9-20.5 P903097-2I Soil <br /> Tert-amyl methyl ether 9030118 3/8/99 319199 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-bury]ether 5.00 ND " <br /> Methyl tent_-butyl ether__ _ 5.00 ND " <br /> Surrogate: Dibromofluororuethane 80.0-120 106 / ---_ �- --v <br /> Surrogate: 1,2-Dichloroethane-d4 80.0-120 109 " <br /> rr Surrogate: Toluene-d8 81.0-117 106 <br /> Surrogate: 4-Bromofluorobenzene 74.0-121 108 <br /> SD/CY-S139-25.5 P903097-22 Soil <br /> uoest-amyl methyl ether 9030118 318/99 3/9/99 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 tert-butyl ether 5.00 ND " <br /> i,. Methyl tert-butyl ether_ 5.00 ND _ <br /> Surrogate: Dibromofluoromethane 80.0-120 114 <br /> Surrogate: 1,2-Dichloroethane-d4 80.0-120 121 4 <br /> Surrogate: Toluene-d8 81.0-117 109 " <br /> Surrogate: 4-Bromofluorobenzene 74.0-121 114 " <br /> SUSD/CY-SB9-30.5 P903097-23 Soil <br /> Tert-amyl methyl ether 9030221 3/9/99 3/10/99 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 tert-butyl ether 5.00 ND " <br /> Methyl tert-butyl ether 5.00 ND " <br /> Surrogate: Dibromofluoromethane 80.0-120 105 <br /> Surrogate: 1,2-Dichloroethane-d4 80.0-120 112 " <br /> Surrogate: Toluene-d8 81.0-117 105 <br /> .... Surrogate: 4-Bromofluorobenzene 74.0-121 <br /> %./ <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions. <br /> i... Page 15 of 28 <br />