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t,y r <br /> 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 %00 FAX(92 5)988-9673 <br /> qQF Analytical e[9 Sinker 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 /> 40 - <br /> EMCON-Sac Project ARCO 2130, Stockton,CA Sampled 12/2/98 <br /> 1433 N Market Blvd Project Number 2 1775-229 003 Received 12/3/98 <br /> Sacramento,CA 95834 Project Manager Dave Foley Reported 12/17/98 <br /> Total Purgeable Hydt ocarbons(C6-CI 2), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical- Sacramento <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> MW-1 (73'1 58.12046-01 Water <br /> Purgeable Hydrocarbons 8[20127 12/8/98 12/8/98 50 0 227 ug/[ 1 <br /> Benzene 0 500 ND <br /> Toluene 0 500 ND <br /> Ethylbenzene 0 500 ND <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether 500 12 7 <br /> Surrogate a a a-Trrfuorotoluene 600-140 120 <br /> MW-2(72'1 S812046-02 Water <br /> Purgeable Hydrocarbons 8120107 1217198 12/7/98 50 0 390 ug/I 2 <br /> Benzene 0 500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 0 735 <br /> #Xlene.,(total) 0500 NDyl tert-butyl ether 500 158g1, a a a-Trnfluorotoluene 600-140 119 % <br /> M W-3(73'1 5812046-03 <br /> Water <br /> Purgeable Hydrocarbons 8120107 12/7198 12/7/98 500 ND ug/l <br /> Benzene 0500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether 500 ND " <br /> Surrogate a a a-Trtfluorololuene 600-140 84 7 <br /> MW-4(73'1 S8I2046-04 Water <br /> Purgeable Hydrocarbons 8120107 12/7/98 12/7/98 50 0 ND ug/l <br /> Benzene 0 500 ND " <br /> Toluene 0 500 ND " <br /> Ethylbenzene 0 500 ND <br /> Xylenes(total) 0 500 ND <br /> Methyl tert-butyl ether 500 ND " <br /> Surrogate a a a-Trruorololuene 600-140 88 S Y" <br /> MW-5(75'1 5812046-05 'Vater <br /> Purgeable Hydrocarbons 8120107 12/7198 12/7/98 500 ND ug/I <br /> Benzene 0 500 0 693 <br /> Toluene 0 500 ND <br /> Ethylbenzene 0 500 ND <br /> X lenes(total) 0 500 ND <br /> SMfMja Analytical-Sacramento t *Refer to end of,eport fa text of nolec and definrrtons� <br /> G <br /> Ronald W Bobel,Client Services Representative Page 2 of 10 <br />