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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 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 ND<100 ND<500 NA
<br /> 12/18/00 NDc1000 220,000 51,000 37,000 ND<5000 20,900 75,000 NA NA
<br /> 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 NDc200 ND<200 NDc2,000 ND<200
<br /> 05/06/02 NA 230,000 49,000 48,000 4,70025,000 IL83,000 ND<50 ND<50 ND<50 ND<500 ND<5o
<br /> MW-2 04/14/99 88,000 90,100 28,900 5,060 1,890 11,750 644 ND<10 ND<10 ND<10 ND<50 NA
<br /> 12/18/00 ND<50 57,000 30,000 N0<2,500 ND<2 500 L4,000 I ND<2,500 NA NA
<br /> NA NA NA
<br /> 12/06/01 NA 110,000 33,000 1,200 2,100 9,800 6,700 ND<100 ND000 ND000 ND<1,000 ND<100
<br /> 03/29/02 NA 82,000 27,000 600 1,400 6,600 9,900 ND<100 ND<100 ND<100 ND<1,000 ND<100
<br /> 05/06/02 NA 90,000 35,000 650 2,400 9,600 1:5,500 ND<50 ND<50 ND<50 ND<500 NDc50
<br /> MWS 12/06/01 NA 3,000 310 400 61 360 21 ND<2 ND<z
<br /> ND<2 ND<20 NDc2
<br /> 03/29/02 NA 68 15 16 ND<0 5 22 ND<0 5
<br /> ND<0 5 ND<0 5 NDcO 5 ND<5 ND<0 5
<br /> 05/06/02 NA ND<50 0 5 ND<0 5 ND<0 5 Nbc1 ND<0 5 ND<0 5 Np<0 5 NDcO 5 Np<5
<br /> ND<0 5
<br /> CITY WELL 12/28101 NA ND<50 ND<0 5FND<O 5 NdcO 5 ND<0 5 NDcO 5 Np<0 5 NbcO 5 NpcO 5 NDcS ND<0 5
<br /> NOTES All results are reported to micrograms per Inter(ugA)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 82608 or 802018015M
<br /> Methyl-t-butyl ether(MTBE),Di-isopropyl ether(DIPE),Ethyl4-butyl ether(ETBE),Tert-amyl methyl ether(TAME)and Tert-Butanol(TBA)by EPA 8260B
<br /> 1,2-Dtchloroethane(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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