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Sequoia 819 Stnker Avenue Suite 8 <br /> Sacramento, CA 95834 <br /> (916) 921-9600 <br /> Analytical <br /> FAX(9 i 6) 921-0100 <br /> EMCON/IT-Sacramento Project ARCO 2168,Stockton,CA Sampled 2/25/00 <br /> 1433 N Market Blvd,#1 Project Number 804599 Received 2/28/00 <br /> Sacramento,CA 95834 Project Manager Dave Foley Reported 3/8/00 <br /> Total Purgeable Hydrocarbons (C6-C12),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 <br /> S002369-01 Water <br /> Purgeable Hydrocarbons 0030072 3/7/00 3/7/00 10000 19700 ug/1 1,13 <br /> Benzene 11 100 8830 D <br /> Toluene 100 228 D <br /> Ethylbenzene 100 800 D <br /> Xylenes(total) 100 932 D <br /> Methyl tert-butyl ether 5.0.0ND D <br /> Surrogate a a a-Tr¢fluorotoluene 660-140 102 T % T <br /> MW-2 5002369-02 Water <br /> Purgeable Hydrocarbons 0030072 3/7/00 3/7/00 2000 4510 ug/1 l,D <br /> Benzene 200 1500 D <br /> Toluene 200 138 D <br /> Ethylbenzene 200 151 D <br /> Xylenes(total) 200 207 D <br /> iftethyl tort-butyl ether _ _ __ 100 _ND_ W D <br /> rrrogate a,a,a-Trifluorotoluene 600-140 102 % <br /> MW-3 5002369-03 Water <br /> Purgeable Hydrocarbons 0030063 3/6/00 3/6/00 1000 1300 ug/l 1,13 <br /> Benzene 100 487 " D <br /> Toluene 100 192 D <br /> Ethylbenzene 100 122 D <br /> Xylenes(total) 10 0 65 4 D <br /> Methyl tert-butyl ether 500 ND D _ <br /> Surrogate a a a-Trifluorotoluene 600-140 98 1 % <br /> MW4 S002369-04 Water <br /> Purgeable Hydrocarbons 0030063 3/6100 3/6/00 1000 1810 ug/l 1,13 <br /> Benzene loo 477 D <br /> Toluene 100 208 D <br /> Ethylbenzene 100 736 D <br /> Xylenes(total) 100 182 D <br /> Methyl tert-bury_]ether __ 500 ND D <br /> Surrogate a a,a-Trifluorotoluene 600-140 103 % <br /> MW-5 5002369-05 Water <br /> Purgeable Hydrocarbons 0030072 3/7/00 3/7/00 1000 3280 ug/l 1,D <br /> Benzene loo 942 " D <br /> Toluene 100 169 D <br /> Ethylbenzene " 100 134 D <br /> Xylenes(total) " " 100 415 D <br /> MWIlquoia Analytical-Sacramento *Refer to end of report for text of notes and definitions <br /> Page 2 of 9 <br />