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<br /> TABLE 2
<br /> CUMULATIVE ANALYTICAL RESULTS -GROUNDWATER
<br /> San Joaquin County Parking Garage, 130 N Hunter Street, Stockton, California
<br /> OXYGENATES
<br /> SAMPLE DA'Z'E ETHYL-
<br /> LOCATION SAMPLED TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETBE TAME TBA 1,2-DCA TPH-D TPH-MO TPH-K
<br /> G-1 02/02/01 160,000 5,100 190 2,600 2,600 ND<$0 ND<50 ND<50 ND<50 ND<500 NA ND<60 000 NDH 000E53,000G-2 02/02/01 2 200 6S ND<5 14 25 ND<5 ND<5 ND<5 ND<5 ND<50 NA ND<1 000 ND<100 000
<br /> G-3 02/02101 50,000 1,900 220 6,400 3,700 ND<20 ND<20 ND<20 ND<20 ND<200 NA ND<120,000 ND<1000 110,000
<br /> MW-1 07/24/02 69,000 860 960 2,700 5,200 ND<5 ND<5 ND<5 ND<5 ND<50 91 ND<50 N0<500 NA
<br /> 11/25/02 140 000 510 790 1,400 1 000 ND<5 ND<5 ND<5 17 ND<50 NA 2,000 ND<500 NA
<br /> 02/19/03 29,000 390 ND<100 710 560 ND<5 ND<5 N0<5 ND<5 ND<50 ND<5 ND<50 ND<500 NA
<br /> 05/09/03 _12,000 240 26 460 330 ND<5 ND<5 ND<5 ND<5 ND<50 ND<5 ND<50 ND<500 ND<250
<br /> 09/12103 11,000 240 N0<50 430 240 ND<5 ND<5 ND<5 ND<,5 ND<S0 NA r ND<50 ND<500 2,300
<br /> MW-2 07/24/02 120 000 490 500 4,600 11,000 ND<5 ND<5 ND<5 ND<5 ND<5D 16 ND<50 ND<500 NA
<br /> 11/25/02 160,000 1,400 660 3,400- 6,000 ND<5 ND<5 ND<5 14 ND<50 NA ND<50 ND<500 NA
<br /> 02!19!03 68000 660 ND000 3,200 51900 ND<5 ND<5 ND<5 ND<5 ND<50 ND<5 ND<50 ND<500 NA
<br /> 05/09/03 33,000 680 94 3,600 6,800 ND<5 ND<5 ND<5 1113<5 ND<50 17 ND<50 ND<500 4,200
<br /> 09/12/03 .30,000 460 62 2,700 4,200 ND<5 ND<5 ND<5 ND<5 ND150 NA ND<50 ND<500 6,100
<br /> MW-3 07/24102 170,000 1,400 640 3,300 6,000 ND<5 84 ND<5 ND<5 ND<50 36 ND<50 ND<500 NA
<br /> 11/25/02 350 000 2 400 1 P200 4,900 12,000 ND<5 194 ND<5 ND<5 ND<50 NA ND<50 ND<500 NA
<br /> 02/19/03 58,000 1,700 ND--400 2,600 4,500 ND<5 88 ND<5 ND<5 ND<50 ND<5 ND<50 ND<500 NA
<br /> 05109/03 36,000 1,700 97 2,600 4,700 ND<5 62 ND<5 ND<5 Np<50 ND<5 ND<50 ND<500 5,900
<br /> 09/12/03 32,000 1,700 82 2,700 4,800 ND<0 5 ND<0 5 ND-0 5 ND<0 5 ND<5 r ND<50 N10<500 5 900
<br /> MW-4 07/24/02 ND<50 ND<0 5 ND<0 5 ND<D 5 ND<D 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 ND<50 ND<500 NA
<br /> 11125/02 ND<50 ND<0 5 ND<0 5 ND<0 5 NDO ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA ND<50 ND<500 NA
<br /> 1p,r <d,s 0 � CpS <50 -co S
<br /> 02/19/03 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<1 ND< NDj ND< ND< ND<5 ND< ND<50 ND<500 NA
<br /> 05109/03 ND<50 ND<D 5 N0<0 5 ND<D 5 ND<1 ND<0 5 ND<0 5 ND<Q 5 ND<0 5 ND<5 ND<0 5 ND<50 N13<500 ND<250
<br /> 09/12/03 ND<50 I ND<0 5 1 ND<0 5 N0<0 5 1 ND<1 L ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5NA ND<50 ND<500 ND<250
<br /> NOTES All results are reported in micrograms per liter(ugA),which translates to parts per billion(ppb) 2/5"l o it
<br /> Total Petroleum Hydrocarbons as Gasoline(TPH-G)and Benzene toluene,ethylbenzene xylenes(BTEX)analyzed by EPA Methods 8020/8015M or 8260B
<br /> Oxygenates Methyl tenary butyl ether(MTBE),Di-Isopropyl ether(DIPE),Ethyl-t-butyl ether(ETRE) Tert-amyl methyl ether(TAME)and Tert-butanot(TBA)analyzed by EPA Method 8260B
<br /> 1 2-Dichloroethane(1,2-DCA)analyzed by EPA Method 8260E
<br /> TPH-Diesel(TPH-D) TPN-Motor Oil(TPH-MO),and TPH-Kerosene(TPH-K)analyzed by EPA Method 8015M
<br /> ND<100=Not Detected at reporting limit of 100 ppb
<br /> NA =Not analyzed for specified compound
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