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Chevron U.S.A. r <br /> A Page 20 <br /> TABLE IV <br /> Concentration 2L petroleum Constituents in Snils <br /> .' (Concentrations expressed in parts per million) <br /> Sampling Performed by Dames b Moore <br /> � } Chevron Stn 9-6465 <br /> TPI Organic <br /> I•D• Ben,,. r jo ue a Et ben;• es Ga5 encs <br /> ;d <br /> March 8 - 10, 1990 <br /> MW-2A,30'B n/d n/d n/d n/d n/d <br /> MW-2A,35'B 0.07 n/d n/d n/d n/d <br /> f.¢ <br /> MW-4A,30'B n/d 0.02 n/d n/d n/d <br /> MW-4A,351B n/d n/d n/d n/d n/d <br /> MW-8, 301B n/d n/d n/d n/d n/d <br /> 1.1 MW-8, 351B n/d n/d n/d 0.02 n/d <br /> MW-3, 351A n/d n/d n/d n/d n/d _ <br /> } April 2 - 4, 1990 <br /> MW-5A,35.5' n/d n/d n/d n/d n/d n/d <br /> MW-9, 35.5' n/d n/d n/d n/d n/d n/d <br /> MW-10,35.5' n/d n/d n/d n/d n/d n/d <br /> MW-11,35.5' n/d n/d n/d n/d n/d n/d <br /> Detection <br /> Limits: 0.005 0.005 0.005 0.15 10 0.25 <br /> Legend_ <br /> j' n/d - non-detected <br /> k" Ethbenz - Ethylbenzene <br /> TPH-Gas - Total Petroleum Hydrocarbons as Gasoline <br /> Key to Sample Ib: <br /> MW-2A, 30' <br /> f L Sample Depth in Feet <br /> Monitoring Well Number <br /> ' ! 16000-705-044 <br /> 1)AM... Nfk)o�tr_ <br /> f1 <br /> is <br />