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Sp 1 7. 819 Striker Avenue,Suite 8 <br /> equoia Saaamento,CA 95834 <br /> FAX(916)921-0100 <br /> Analytical www_sequotalabs.com <br /> Delta Environmental Consultants-Cameron Park Project: ARCO 5469, Stockton,CA Sampled: 918/00 <br /> 3330 Cameron Park Dr. Project Number: N/A Received: 9/8/00 <br /> Cameron Park,CA 95682 Project Mana er: Jay Johnson Re orted: 9127/00 <br /> Total Purgeable Hydrocarbons(C6-C12), BTEX and MTBE by DHS LUFT <br /> Sequoia Analytical- Sacramento <br /> Batch Dalo Date Surrogate Reporting <br /> Analyte Number red Analyzed Limits Limit Result Units Notes* <br /> MW-1 5009110-01 Water <br /> Purgeable Hydrocarbons 0090155 9/15100 9115/00 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 2.50 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 81.4 % <br /> MW-2 5009110-02 Water <br /> Purgeable Hydrocarbons 0090155 9115100 9115/00 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 /> NiNkyl tert-butyl ether 2.50 ND " <br /> gate: a,a,a-Trdfluorotoluene 600-140 78.1 % <br /> MW-3 S009110-03 Water <br /> Purgeable Hydrocarbons 0090155 9/15/00 9115100 50.0 ND ug/l <br /> Benzene 11 „ 0.500 ND " <br /> Toluene 0.500 ND " <br /> Ethylbenzene 0.500 ND " <br /> Xylenes(total) 0.500 ND " <br /> Methyl tert-bury!ether 2,50 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 88.0 <br /> MW-4 S009110-04 Water <br /> Purgeable Hydrocarbons 0090178 9118100 9118100 250 349 ug/l 1,D <br /> Benzene 2.50 104 D <br /> Toluene 2.50 ND D <br /> Ethylbenzene 2.50 ND D <br /> Xylenes(total) 2.50 7.81 D <br /> Surrogate: a,a,a-Trifluorotoluene <br /> 60.0-140 75.0 <br /> Methyl tert-butyl ether 125 1300 ug/l D <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 70.1 % <br /> MW-5 S009110-05 Water <br /> Purgeable Hydrocarbons 0090155 9115/00 9115100 50.0 ND ugll <br /> Benzene 0.500 ND " <br /> Toluene 0.500 ND " <br /> Ethylbenzene 0.500 ND " <br /> a Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> Page 2 of 12 <br />