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TABLE 2
<br /> CUMULATIVE ANALYTICAL RESULTS - GROUNDWATER
<br /> San Joaquin County Motor Pool, 1810 East Hazelton Avenue, Stockton, California
<br /> OXYGENATES
<br /> SAMPLE DATE ETHYL-
<br /> LOCATION SAMPLED TPH-D TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE I DIPE ETBE TAME TBA 1,2-DCA
<br /> MW-1 04/14/99 240,000 244,000 47,600 48,000 4,280 21,750 46,500 ND-100 ND<100 ND000 ND<500 NA
<br /> 12/18/00 ND<1,000 220,000 51,000 37,000 1 N0<5,000 20,900 75,000 NA NA NA NA NA
<br /> 12/06/01 FP FREE PRODUCT 0.33 FEET THICK FP FP FP FP FP FP
<br /> 03/29/02 NA 270,000 44,000 31,000 6,500 33,000 34,000 ND<200 ND<200 ND<200 ND<2,000 ND<200
<br /> 05/06/02 NA230,000 49,000 48,000 4,700 1 25,000 83,000 ND<50 ND<50 ND<50 ND<500 1,10<50
<br /> 08/22/02 FP FREE PRODUCT 0.41 FEET THICK FP FP FP I FP FP FP
<br /> MW-2 04/14/99 86,000 90,100 28,900 5,060 1,890 11,750r32OOO
<br /> ND<10 ND<10 ND<10 ND-50 NA
<br /> 12/18/00 ND-50 57,000 30,000 NU<2,500 ND<2,500 1 4,000 NA NA NA NA NA
<br /> IL12/06/01 NA 110,000 33,000 1,200 2,100 9,800 ND<ioo ND<lao ND<100 No<i,000 ND<1oo
<br /> 03/29/02 NA 82,000 27,000 600 1,400 6,600 ND<10o ND<ioo ND<100 ND<i,000 ND<to0
<br /> 05/06/02 NA 90,000 35,000 650 2,400 9,600 ND<50 ND<50 ND<50 ND<500 ND<50
<br /> 08/22/02 NA 100,000 36,000 620 3,100 11,300 ND<so ND<50 ND<so 5,300 100
<br /> MW-3 12/06/01 NA 3,000 310 400 61 360 21 ND<2 ND<2 ND<2 ND<20END<0,5
<br /> 03/29/02 NA 68 15 1.6 ND<0.5 2.2 ND<0.5 ND<0.5 ND<0.5 N0<0.5 ND<5
<br /> 05/06/02 NA ND<50 0.5 ND<0.5 ND<0.5 ND<1 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<5 08/22/02 NA ND<50 ND<05 ND<05 ND<0.5 ND<05 ND<05 ND<0.5 ND<0.5 ND<05 ND<5
<br /> CITY WELL 12/28/01 NA ND<50 ND<0.5 1 ND<0.5 I ND<0.5 ND<05 NDc0.5ND<0.5 ND<0.5 1 ND<0.5 ND<5 ND<05
<br /> NOTES: All results are reported in micrograms per liter(ug4)which translates to parts per billion(ppb)
<br /> Total Petroleum Hydrocarbons as Diesel(TPH-D)analyzed by EPA Method 8015M
<br /> Total Petroleum Hydrocarbons as Gasoline(TPH-G),benzene,toluene,ethylbenzene,xylenes by EPA Method 8260B or 8020/8015M
<br /> Methyl-t-butyl ether(MTBE),Di-isopropyl ether(DIPE),Ethyl-t-butyl ether(ETBE),Tert-amyl methyl ether(TAME)and Tert-Butanol(TBA)by EPA 82608
<br /> 1,2-Dichloroethane(1,2-DCA)and 1,2-Dibromoethane(EDB)analyzed by EPA Method 82608
<br /> ND<0.5=Not Detected at reporting limit of 0.5 ppb
<br /> FP=Free Product,Well Not Sampled
<br /> NA =Not analyzed for specified compound
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