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<br /> TABLE 2
<br /> CUMULATIVE ANALYTICAL RESULTS -GROUNDWATER
<br /> Former Stefano's Gas Station Site, 1419 East Charter Way, Stockton, California
<br /> OXYGENATES
<br /> DATE ETHYL-
<br /> WELL ID SAMPLED TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETBE TAME TBA 1,2-DCA
<br /> MW-1 01/11/99 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA
<br /> 04/22/99 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA
<br /> i
<br /> 07/23/99 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA
<br /> 10/14/99 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA
<br /> 01/27/00 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA
<br /> 04/30/01 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5
<br /> MW-2 01/11/99 120,000 7,800 64,000 4,300 28,000 ND<100 ND<100 ND<100 ND<100 ND<1,000 NA
<br /> I
<br /> 04/22/99 110,000 5,400 63,000 5,200 32,000 ND<10 ND<10 ND<10 ND<10 ND<100 NA
<br /> 07/23/99 130,000 4,700 56,000 6,100 35,000 ND<5 ND<5 ND<5 ND<5 ND<50 NA
<br /> 10/14/99 91,000 3,500 44,000 5,300 24,000 ND<20 ND<20 ND<20 ND<20 ND<200 NA
<br /> 01/27/00 160,000 3,600 22,000 5,300 32,000 ND<50 ND<50 ND<50 ND<50 ND<500 N
<br /> 04/30/01 1 210,000 4,800 48,000 4,500 30,000 ND<20D ND<200 ND<200 ND<200 ND<2000 420
<br /> MW-3 01/11/99 16,000 1,300 1,500 1,800 6,900 ND<20 ND<20 ND<20 ND<20 ND<200 NA
<br /> 04/22/99 11,000 790 760 1,500 4,000 ND<5 ND<5 ND<5 ND<5 100 NA
<br /> 07/23/99 14,000 570 340 1,600 3,100 ND<20 ND<20 ND<20 ND<20 ND<200 NA
<br /> 10/14/99 5,900 250 53 730 860 26 ND<2 0 ND<2 0 ND<2 0 96 NA
<br /> 01/27/00 7,000 130 11 460 510 ND<2 0 ND<2 0 ND<2 0 ND<2 0 74
<br /> /91 04/30/01 940 ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 ND<1 60 230
<br /> Notes All results except are reported in micrograms/]iter which translates to parts per billion(ppb)
<br /> Total Petroleum Hydrocarbons as Gasoline(TPH-G)analysis by EPA Method 8260B
<br /> . - Benzene,toluene ethylbenzene and xylenes analysis by EPA Method 8260B
<br /> Oxygenates Methyl-t-butyl,ether(MTBE) Dusopropyl ether(DIPE) Ethyl-t-butyl ether(ETSE) Tert-amyl methyl ether(TAME)and Tert-Butanot(TBA)by EPA 82608
<br /> 1,2-Dl,chloroethane(i,2-DCA)analyzed by EPA Method 82608
<br /> ND<50=Not Detected at reporting limit of 50 ppb
<br /> NA =Not analyzed for specified compound
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