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+i <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 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 /> EMCON - Sac Project ARCO 2130,Stockton, CA Sampled 9/l/98 <br /> 1433 N Market Blvd Project Number 21775-229 003 Received 9/2/98 <br /> Sacramento,CA 95834 Proiec( Manager Dave Foley Reported 9124/98 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical -Sacramento <br /> Batch Date Date Surrogate Reporting <br /> [Analyte p Y Number Prepared Analyzed Limits <br /> Limit Result Units Notes* <br /> n9w-1 39', <br /> S802013-01 Water <br /> Purgeable Hydrocarbons 8090104 9/10/98 9/10198 500 249 ug/l 1 <br /> Benzene <br /> Toluene <br /> 0 500 5 19 " <br /> Ethylbenzene 0 500 ND0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether " " " Soo ND <br /> Surrogate a a a-Triuorofoluene b0 0-140 <br /> 998 <br /> MWMW-Z f40'1f40'1 5809013-{i2 Water <br /> Purgeable Hydrocarbons 8090104 9/10/98 9/10/98 500 322 ug/l 2 <br /> Benzene <br /> Toluene <br /> 0 500 484 " <br /> 0 500 ND " <br /> Ethylbenzene 0 500 ]6 9 " <br /> Xylenes(total) 0 500 1 69 " <br /> M tert-butyl ether 5 00 " <br /> Su to a a a TriND <br /> uorotoluene 600-140 N <br /> W 5809013-03 Water <br /> Purgeable Hydrocarbons 8090104 9/10/98 9/10/98 500 7I 6 Ug/1 3 <br /> Benzene <br /> Toluene <br /> 0 500 ND " <br /> " <br /> Ethylbenzene 0 500 ND0 500 ND " <br /> Xylenes(total) 0 500 ND " <br /> Methyl (en-butyl ether 5 00 ND " <br /> Surrogate a a a-TriJluorotoluene 600-140 978 <br /> MW,-4..(40') 5802013=04 Wator <br /> Purgeable Hydrocarbons 8090104 9/10/98 9/10/98 500 ND ug/l <br /> Benzene 0 500 ND " <br /> Toluene " <br /> 0 500 ND " <br /> Ethylbenzene 0 500 ND <br /> Xylenes(total) 0 500 ND " <br /> Methyl tert-butyl ether 5 00 ND " <br /> Surrogate a a a-Tri luorotoluene 600-140 985 <br /> MW-5(40'] S809013-05 nater <br /> Purgeable Hydrocarbons 8090104 9/10/98 9/10/98 500 ND ug/! <br /> Benzene 0 500 13 2 " <br /> toluene 0 500 ND " <br /> Ethylbenzene 0 500 139 " <br /> Ky[enes(total) " <br />�.go 0 500 0 535 <br />-)egdWAnalyhcal-Sacramento r, *Refer to end ofre ott or text o notes and definitions <br /> P f f <br />'onald W Bobel,Client Services Representative Page 2 of 7 <br />