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TABLE 1 <br />GROUNDWATER EXTRACTION AND TREATMENT SYSTEM <br />ANALYTICAL DATA <br />Former Chevron Service Station #9-5775 <br />301 West Kettlernan Lane <br />Lodi, California <br />Sample <br />Sample <br />TPHg <br />Benzene <br />Toluene <br />Ethyl- <br />Total <br />MtBE <br />TBA <br />DIPS <br />ELBE <br />TAME <br />Ethanol <br />Methanol <br />EDB <br />1,2 -DCA <br />Date <br />Location <br />benzene <br />Xylenes <br />( <br />c <br />< <br />< <br />c <br />( <br />c <br />06/06/01 <br />Effluent <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><50 <br /><0.50 <br /><0.50 <br />06!13/01 <br />Effluent <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><50 <br /><0.50 <br /><0.50 <br />06/20/01 <br />Effluent <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><50 <br /><0.50 <br /><0,50 <br />06/27/01 <br />Effluent <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0-50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br />6.0 <br /><50 <br /><0.50 <br /><0.50 <br />07/05/01 <br />Effluent <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><50 <br /><0.50 <br /><0.50 <br />07/11/01 <br />Effluent <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><50 <br /><0.50 <br /><0.50 <br />07/18/01 <br />Effluent <br /><50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><50 <br /><0.50 <br /><0.50 <br />07/25/01 <br />Emuent <br /><50 <br /><0.50 <br /><0.50 <br /><0-50 <br /><0.50 <br /><0.50 <br /><5.0 <br /><0.50 <br /><0.50 <br /><0.50 <br />11 <br /><50 <br /><0.50 <br /><0.50 <br />Discharge Limitation <br />ND <br /><5.0' <br /><5V I <br /><5.0' <br /><5.0' <br />ND <br />ND <br />ND <br />ND <br />ND I <br />---- I <br />--- <br />---- I <br />_._- <br />EXPLANATIONS: <br />ANALYTICAL LABORATORIES <br />TPHg = Total Petroleum Hydrocarbons as Gasoline <br />DIPE = Di -isopropyl ether <br />Sequoia Analytical <br />(FLAP #1271, #1624 and <br />#12360) <br />1,2 -DCA = 1,2-Dichloroethane <br />ELBE = Ethyl tertiary butyl ether <br />Kiff Analytical ( FLAP #2236) <br />M[BE= Methyl tertiary butyl ether <br />TAME = Tertiary amyl methyl ether <br />TBA = tcrt-Butyl-alcohol <br />NA = Not analyzed for this constituent <br />EDB = Ethylene dibromide <br />ND = Not Detected or below tnethod detection limits <br />NOTES: <br />Sum of benzene, toluene, ehtylbenzetu and xylenes na to exceed 0.005 mg4, (5 ppb). <br />'Sample collected after approximately 1,400 gallons of rap water was pumped through system during cleaning procedures. <br />s Sample included 2-butanaone and tetrahydrofuran which <br />were quantified as TPHg. <br />Sample collected after approximately 1,500 gallons of tap <br />water were <br />pumped through system during cleaning <br />procedures. TetrAydrofuran reported as ND (6.0). <br />• <br />077.43452.570lG WEdw <br />Page B of 8 <br />