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T ABL f 2 OROUNDWA I ER MON11ORING DA"IA, FORMER EXXON RS 1-3708, 2705 COUNTRY CLUES 130U1 EVARD, STOC KTON, CA <br /> Reteteme Depth to Groutldwater Ethyl- Total TPH as Oxygenate Dissolved <br /> MulutottlIg Elevation Gtoundwater Elevation Benzene Toluene benzene Xylenes gasoline MTBE Compounds t cad <br /> Well Date (feet) (feet) (feet) (µg/L) (pg/L) (µg/L) (µg/L) ( g/L) (tg/L) (µg/L) ( g/L) <br /> lulluuutg chlt,r orator liythucarbotts vmylchlul Idc 0S 12-dlchlorudhene,truhlatoefharte and Miachloroethant. I hese peaks icsulted in a positive <br /> Illel hydrncaibon icSult <br /> L=A typical chromaiogram t our unknown peaks were observed causing a positive fuel hydrocarbon result Chlorinated hydrocarbons are suspected <br /> I =A typical chromatogram An unknown peak was observed between MTBE and benzene Chlorinated hydrocarbons are suspected <br /> g=A typical chiom itogiam Analysts of this sample by EPA Method 624 on Apt II 17, 1992(past EPA recommended holding time) was positive for the <br /> following chlorinated hydrocarbons chlorobenzene and l 2 dichlorobenzene <br /> h=Analysis by EPA Method 8260 <br /> i=Unidenulied h}diocarbon to the C6-C 12 range <br /> } = 1 2 lhchloroL:11,1 i. <br /> k=1 I'I I as diesel <br /> I=Sample analyLed outside I PA recommended holding time <br /> m=t Amyl methyl ether <br /> n=Tcruaiy butyl alcohol <br /> o=Giab groundwdtcl Sample.collected Foul well <br /> I <br /> Izolesutce elevation =Elevation ielative to mean sea level <br /> Dgth to gioundwatei =1'*1cauucd from notuh/mark on noith edge of well casing <br /> T PII= Cotal pc.11 OIL um hydrocarbons by CPA Mclhod 801�,Modified <br /> M FK=Methyl teltiai y butyl ethr r by EPA Mclhod 8020 Modified,except as notA <br /> Oxygenate compounds may include ethanol,t butanol di isopi opyl ether,ethyl terttary butyl ether and t amyl meihyl ether by <br /> LPA Method 8260 All analytes ucie repoi ted bclok% the laboratory deteuton limit,except as noted <br /> NA=Not analyzed <br /> N( -Not calculated <br /> NM-Nal mcasim d <br /> NS=Not saniplctl <br /> ii_'I -MrUUaI iijiti pec lil�r <br /> IabL I1-d I! <br /> o pniiui�t7i7nnni�ylutnleclSl�U? 41(i$btt fly <br />