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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-%00 FAX(650)364 9233 <br /> 404 N W�get Lane Walnut Creek CA 94598 (9Z5)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 <br /> Sampled 10/26/98 to 10/27/98 <br /> 3939 Cambridge Road, Ste 220 <br /> Protect Number NIA <br /> Cameron Park,CA 95682 Protect Manager Mark Capps Received 10/28/98 <br /> Reported <br /> 11/11/98 <br /> Volatile Organic Compounds by EPA Method 8260A/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> BAIrb. 811005 Date Prepared, 11/9198 <br /> Ralik _ <br />:thanol 11/9/98 <br /> Pert-butyl alcohol ND mg/kg 150 <br /> ND <br /> vfI0 0 <br /> ethyl tert-butyl ether ND 0 100 <br />)i-isopropyl ether ND 0 100 <br />,thyl tent-butyl ether ND 0 100 <br />'ert-amyl methyl ether ND 0 100 <br /> urrogate 1 2-DCA-d4 2 50 265 600-140 106 <br /> CS 81 t0I05-RG1 <br /> lethyl Cert-butyl ether 11/9/98 2 50 1 96 mg/kg 700-130 784 <br /> urrogate 1 2-DCA-d4 2 50 245 600-140 98 0 <br />� $1 01�M.S� S811o57-nl <br /> leth ert-butyl ether 11/6198 2 50 ND 2 67 mg/kg 60 0-140 107 <br /> rrrogate 1,2-DC4-d4 2 50 2 84 60 0-I40 1I4 <br /> fairly S tke Dun 10I05- SDt <br /> S8II057-[li <br /> ethyl tert-butyl ether 1116/98 250 ND 2 13 mg/kg 600-140 852 250 227 <br /> errogate 1,2-DCA-d4 2 50 2 98 11 600-140 119 <br /> 11 . 5110]07 DatUrepared. 11110/99 <br /> Extraction Method_ EPAe5030B rHeOH1 <br /> ZILI, 110107-BL IK t <br /> hanol 11/10/98 ND mg/kg 150 <br /> rt-butyl alcohol " ND 100 <br /> ethyi tert-butyl ether ND 0 100 <br />-Isopropyl ether ND 0 I00 <br /> iyl ter[-butyl ether ND 0 100 <br /> rt-amyl methyl ether ND 0 100 <br /> rrogate 12-DCA-d4 250 227 " 600-140 908 <br />� 8.1,1-0107-651 <br /> thyl tert-butyl ether 11/10/98 250 222 mg/kg 700-130 888 <br /> rogate 1,2-DCA-d4 250 192 600-140 768 <br /> tri ike M0107-MS_I 10323-08 <br /> thy[tert-butyl ether 1110/98 250 ND 293 mg/kg 600-140 117 <br /> rogate 1,2-DCA-d4 " 250 2 15 600-140 860 <br /> 8110107-MSPI <br /> 581032 <br /> t -butyl ether 11/10/98 2 50 Np <br /> 226 mg/kg 600-140 904 300 257 <br /> uoia Analytical-Sacramento *Refer 10 end of report for text of notes and definilrons <br /> ald W Bobel,Client Services Represe tative <br /> Page 10 of 12 <br />