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Sequoy a $19 raker Avenue Suite 8 <br /> 1 Sacramento CA 95834 <br /> ,!ZN <br /> (916)921-9600 <br /> FAX(916)921-0100 <br /> 1K Analytical www sequolalabs corn <br /> Delta Environmental Consultants Project Arco 6080,Lathrop,CA Sampled 6/12/00 <br /> 3I64 Gold Camp Drive,Ste 200 Project Number N/A Received 6/13100 <br /> Rancho Cordova,CA 95670 Project Manager Jay Johnson Reported 6/26/00 <br /> r _ ` Volatile Oxygenate Compounds by EPA Meth <br /> od 8260A/Quaiity Control� r —w µ '' <br /> T _ _ Sequoia .A.rtalytical-Sacramento -� M' - '—y <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0060167 Date Prepared 6/19100 Extraction Method EPA 50308 McOH <br /> Blank 0060167-BLKI <br /> Tert-butyl alcohol 6/19/00 ND mg/kg 100 <br /> Methyl tert-butyl ether ND 0 100 <br /> Di-isopropyl ether ND 0 100 <br /> Ethyl tert-butyl ether ND 0 100 <br /> Tert-amyl methyl ether ND 0 100 <br /> Ethanol ND 150 <br /> 1,2-Dichloroethane ND 0100 <br /> Ethylene dibromide ND 0 100 <br /> Surrogate 1,2-DCA-d4 250 274 600-140 110 <br /> LCS 0060167-BSI <br /> M 1 tert-butyl ether 6/19/00 250 242 mg/kg 700-130 968 _ <br /> S ate 1,2-DCA-d4 11 250 289 600-140 116 <br /> Matrix Spike 0060167-MS1 5006159-01 <br /> Methyl cert-butyl ether 6/19100 250 ND 207 mg/kg 600-140 828 <br /> Surrogate 1 2-DCA-d4 250 289 It600-140 116 <br /> Matrix Spike Du[! 0060167-MSDI 5006159-01 <br /> Methyl tert-butyl ether 6/19/00 250 ND 208 mg/kg 600-140 832 250 0 482 _ <br /> Surrogate 1,2-DCA-d4 01250 285 600-140 114 <br /> • <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 10 of 1 I <br />