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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 (925)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 /> Pinnacle-C P Project Arco 548,Stockton, CA Sampled 10/26/98 to 10/27/98 <br /> 3939 Cambridge Road,Ste 220 Project Number N/A <br /> Cameron Park,CA 95b82Received 10/28/98 <br /> Pro ect Manager Mark Capps Reported 11/11/98 <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 Notes* <br /> AS-2 (26�5)(f 'ed S810323-05 $411 <br /> Surrogate <br /> 1,2-5C -d4 <br /> Srmethyl ether 8110105 l 1/9/98 11/9/98 0 100 ND mg/kg <br /> u600-140 940 % <br /> AS-2( 1.51 S81032_'i-06 SAW <br /> 8110105 11/9/98 11/9/98 150 ND mg/kg <br /> Pert-butyl alcohol 100 ND " <br />%4ethyI Cert-butyl ether 0 100 1 21 " <br />)i-Isopropyl ether " 0 100 ND " <br />:thyl tert-butyl ether 0 100 ND " <br /> Cert-amyl methyl ether 0 100 ND " <br /> surrogate 12-DCA-d4 00-140 <br /> 78 4 <br /> 5810323-07 Soil <br /> th 8110105 11/9/98 11/9198 150 ND mg/kg <br /> ert-Vffryl alcohol " 100 ND <br /> Zethyl tert-butyl ether 0 I00 0 388 " <br /> 11-isopropyl ether 0 100 ND " <br /> thyl tert-butyl ether 0 100 ND " <br /> ert-amyl methyl ether 0 I00 ND " <br /> urrogate 1 2-DCA-d4 600-140 540 % 3 <br /> thanS 2•(5S810323-0 SAW8110107 11/10/98 11/10/98 1.50 ND mg/kg <br />:rt-butyl alcohol 10 0 ND " <br />[ethyl tert-butyl ether 0 100 ND <br /> i-isopropyl ether 0 100 ND " <br /> hyl tert-butyl ether 0 100 ND " <br />:rt-amyl methyl ether 0 100 ND " <br /> rrrogate 1,2-DCA-d4 600-140 104 % <br /> 3-2(61.5 5810323-n9-09 5911 <br /> hand[ 8110107 I1/10/98 11/10/98 150 ND mg/kg <br /> rt-butyl alcohol 100 ND " <br /> ethyl tert-butyl ether 0 100 ND <br />-isopropyl ether 0 100 ND " <br />-iyl tert-butyl ether 0 100 ND " <br /> rt-amyl methyl ether 0 100 ND " <br /> rrogate 12-DCA-d4 600-140 908 % <br /> 5810323.1n Sid <br />'a 8110105 11/9/98 11/9/98 150 ND mg/kg <br /> luoia Analytical-t acramento *Refer to end of report for text of notes and definitions <br /> iald W Bobel,Client Services Representative Page 6 of 12 <br />