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' Sequoia 1455 McDowell Blvd Horth Ste D <br /> Petaluma, CA 94954 <br /> 792-15 <br /> �XJL J �� FAX(707) 792-0342 <br /> a Environmental Consultants Project Exxon Sampled 8/26/99 to 8/27199 <br /> 164 Gold Camp Dr,Suite 200 Project Number 7-0137/D099-865 Received 8/30199 <br /> ancho Cordova,CA 95670 Project Manager Jim Brownell Reported 9/15/99 <br /> Volatile Organic Compounds by EPA Method 826013/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> nalyte Analyzed Level Result Result Units Recov Limits % Linut % Nates* <br /> Batch 9080656 Date Prepared 8/27/99 Extraction Method EPA 5030 soils McOH <br /> V <br /> nk908065fi-BLK1 <br /> amyl methyl ether 8/27/99 ND mg/kg 1 00 <br /> -butyl alcohol ND 200 <br /> Di-isopropyl ether ND 1 00 <br /> 12-Dibromoethane(EDB) ND 100 <br /> ,12-Dichloroethane ND " 100 <br /> Ethanol ND 400 <br /> gtethhyl tert-butyl ether ND 1 00 <br /> yl <br /> tert-butyl ether _ _ ND 1 00 <br /> rrogate Dibromofluoromethane 200 196 800-120 98 0 <br /> Surrogate 1,2-Dichloroethane-d4 200 206 800-120 103 <br /> rrogate Toluene-d8 2 00 2 17 I' 810-117 109 <br /> rrogate 4-Broniofluorobenzene 2 00 224 740-121 112 <br /> nk 9080656-BLK2 <br /> myl methyl ether 9/1/99 ND mg/kg 1 00 <br /> -butyl alcohol ND 200 <br /> Di-isopropyl ether ND 1 00 <br /> J"2-Dibromoethane(EDB) ND 1 00 <br /> 2-Dichloroethane ND 100 <br /> thanol ND 400 <br /> Fthyl tert-butyl ether ND 1 00 <br /> ethyl tert-butyl ether ND 100 <br /> Surrogate Dibromofluoromethane 1 00 1 75 " 800-120 875 <br /> Surrogate 12-Dichloroethane-d4 200 181 800-120 905 <br /> rrogate Toluene-d8 2 00 2 02 810-117 101 <br /> rrogate 4-Bromofluorobenzene 2 00 2 01 740-121 100 <br /> LCS 9080656-BS1 <br /> ethyl tent-butyl ether 8/27/99 2 00 2 18 mg/kg 758-124 109 _ <br /> rrogate Dibromofluoromethane 200 2 03 800-120 101 <br /> Surrogate 1 2-Dichloroethane-d4 2 00 221 800-120 111 <br /> rrogate Toluene-d8 200 2 11 810-117 105 <br /> rrogate 4-Bromofluorobenzene 200 210 740-121 105 <br /> LCS 9080656-BS2 <br /> ethyl tert-butyl ether 9/1/99 200 1 88 mg/kg 758-124 94 0 <br /> rrogate Dibromofluoromethane If 200 179 of 800-120 89 5 <br /> urrogate 1,2-Dichloroethane-d4 It 200 185 800-120 92 5 <br /> Surrogate Toluene-d8 200 199 310-117 995 <br /> 'urrogate 4-Bromofluorobenzene 200 191 740-121 95 5 <br /> is Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> Page 16 of 20 <br /> 1Im <br />