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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650) 364 9233 <br /> 404 N W8et Lane Walnut Creek CA 94598 (925)988 9600 FAX(925)988 9673 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)991 9600 FAX(916)921 0300 <br /> 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707)792 1865 FAX(707) 792 0342 <br /> Emcon - Pinnacle Project Arco 2168,Stockton, CA Sampled 11/9/98 <br /> 1433 N Market Blvd Project Number 21775-234 003 Received 11/10/98 <br /> Sacramento,CA 95834 Project Manager Dave Foley Reported 1 1124/98 <br /> Volatile Organic Compounds by EPA Method 8260A <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units =Not,,- <br /> MW-1 (53') S811110-01 �.Vater <br /> Ethanol 8110250 11/20/98 11/20/98 3000 ND ug/l <br /> Teri-butyl alcohol 200 ND <br /> Methyl tert-butyl ether 2 00 24 2 <br /> Di-isopropyl ether 4, 200 6 10 <br /> Ethyl tert-butyl ether 200 ND " <br />`Cert-amyl methyl ether 2 00 ND " <br /> Surrogate 1 2-DCA-d4 600-140 996 <br /> MY-2 (521) S8111 IQ-02 Water <br /> 3thanol 8110250 11/20/98 11/20/98 3000 ND ug/l <br /> Cert-butyl alcohol 200 ND " <br /> vlethyl tert-butyl ether 2 00 ND <br /> #'c <br /> pyl ether200 ND^t -butyl ether 200 NDel methyl ether 2 00 ND <br /> urrogate 12- 600-140 107 <br />✓1�(5a.) S$I 11 l 0-03 W ate r <br /> thanol 8110250 11/20/98 11/20/98 3000 ND ug/l <br /> ert-butyl alcohol 200 ND <br /> lethyl tert-butyl ether 2 00 ND " <br />►i-isopropyl ether 2 00 ND <br /> thyl tert-butyl ether 200 ND <br /> ert-amyl methyl ether 2 00 ND " <br /> urrogate 1 2 DCA44 600-140 948 <br /> MA (58') S811110-04 Water <br /> thanol 8110250 11/20/98 11/20/98 3000 ND ug/I <br />-rt-butyl alcohol 200 ND " <br />[ethyl tert-butyl ether 2 00 459 <br /> I-isopropyl ether 2 00 ND " <br /> hyl tent-butyl ether " 200 ND <br />;rt-amyl methyl ether 200 ND <br /> wrogate 1 2-DC.4-d4 600-140 98 6 <br /> X54 S811110-05 Water <br /> handl 8110250 11/20/98 11/20/98 3000 ND ug/l <br /> ri-butyl alcohol 200 ND <br /> ethyl tert-butyl ether 200 ND " <br /> Is yl ether 200 ND <br /> hygbutyl ether 2 00 ND " <br /> quoia Analytical -Sacramento *Refer to end of report for text of notes and definitions <br /> nald W Bobel,Ckent Services Represcntative Page 4 of 9 <br />