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TABLE 2 (Continued) <br /> HISTORICAL ANALYTICAL DATA (9990-1998) -GROUNDWATER <br /> San Joaquin Catholic Cemetery <br /> WELL ID DATE TPHG BENZENE TOLUENE ETHYL- XYLENES MTBE TOTAL <br /> BENZENE LEAD <br /> MW-6 05/01/98 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<2 ND<5 NA <br /> 08/07/98 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 NA <br /> 11/05/98 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA <br /> 05/01/98 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<2 ND<5 NA <br /> 08/07/98 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 NA <br /> ' 11/05/98 ND<50 ND<0 5 ND<0 5 1 ND<0 5 ND-c_0 5 ND<5 NA <br /> WELL#2 06/18/97 ND<100 ND<0 5 ND<1 ND<7 ND<2 NA NA <br /> ' Notes All data are presented in parts per billion(ppb) <br /> Total Petroleum Hydrocarbons as Gasoline(TPHG)analyzed by EPA Method 82606 <br /> Benzene Toluene, Ethylbenzene,Xylenes(BTEX)and Methyl-tertiary-butyl ether(MTBE)by EPA Method 8260B <br /> Total Lead analyzed by EPA Method 239 2 <br /> *MTBE analyzed by EPA 8260 <br /> ND<0 5=Not detected at laboratory reporting limit of 0 5 ppb <br /> NA=Not analyzed for indicated parameter <br /> NS=Well was not sampled on indicated date <br /> On April 18, 1991,samples from MW-1 were sent to two different laboratories for comparison purposes <br /> 1 <br />