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<br /> TABLE 2 - CONTINUED
<br /> Analytical Results of Ground Water Samples
<br /> TOP FILLING STATION
<br /> 101 South Wilson Way, Stockton, Callfonua
<br /> Sample Sample Ground Screen TPH as Etbyl- MTBE MTBE
<br /> I D Date Wath Interval Gasoline enzen oluene enzene ylenes 8020 8260 DIPS ETBE TAME TBA EDB 1,2-DCA Methanol Ethanol
<br /> Dep6-10-97 4622 230,000 39,000 48,000 3,800 19,000 4,600 NA NA NA NA NA NA NA NA NA
<br /> 9-25-97 4744 240,000 38,000 47,000 4,300 21,000 3,600 4,400 ND<1000 ND<1000 ND<1000 ND<5000 NA NA NA NA
<br /> 12-17-97 4802 270,000 38,000 47,000 49300 22,000 3,400 3,400 ND<5 ND<5 ND<5 1,700 NA NA NA NA
<br /> 3-12-98 4559 210,000 41,000 47,000 4,100 20,000 4,100 3,700 N13<500 ND<500 ND<500 ND<5000 NA NA NA NA
<br /> 6-11-98 4176 240,000 38,000 46,000 3,800 19,000 1,400 2$ 00 ND<2000 ND<2000 ND<2000 ND<10000 NA NA NA NA
<br /> 9-09-98 4088 210,000 27,000 24,000 49400 22,000 9,300 4,100 ND<100 ND<100 ND<100 ND<500 NA NA NA NA
<br /> VW- 12-22-98 4034 170,000 24,000 24,000 3,200 18,000 3,100 3,200 ND<85 ND<85 ND<85 ND<425 NA NA NA NA
<br /> 3A 3-26-99 3864 43 63 170,0001 26,000 31,000 2,900 16,000 ND<7000 4,400 ND<130 ND<130 ND<130 ND<650 NA NA NA NA
<br /> 6-14-99 3739 140,000 22,000 26,000 2,700 14,000 1,100 900 ND<25 ND<25 ND<25 ND<130 NA NA NA NA
<br /> 10-13-99 3923 83,000 6,400 7,200 1,900 9,200 11,000 8,400 ND<250 ND<250 ND<250 ND<1,300 NA NA NA NA
<br /> 3-31-00 3763 96,000 10,000 13,000 2,100 12,000 2,300 2,300 ND<50 ND<50 ND<50 ND<250 ND<50 120 NA NA
<br /> 6-21-00 3692 65,000 7,200 7,500 1,500 8,900 6,500 7,800 ND<200 ND<200 ND<200 ND<1000 ND<200 ND<200 ND<40000 ND<10000
<br /> 10-27-00 3915 43,000 6,000 3,800 1,200 69200 8,600 9,100 ND<170 ND<170 ND<170 ND<170 ND<170 ND<170 ND<170 ND<170
<br /> 2-07-01 3793 63,000 6,700 5,700 1,100 10,000 3,200 3,800 ND<50 ND<50 ND<50 ND<250 ND<50 78 ND<10000 ND<2500
<br /> 6-21-00 37 03 300,000 23,000 40,000 2,300 12,000 360,000 440,OOC ND<13000 ND<13000 ND43000 ND<65000 D<13000 NL7<L3000 D<26aa0 ND<[5000
<br /> -3B10-27-00 3804 19-39 - - - - _
<br /> 2-07-01 - ND<50 NIKQ 5 NLKO 5 ND<Q 5 ND<0 5 ND<5 ND<l ND<l ND<l N2K ND<5 NIX50 ND<200 ND<l ND<l
<br /> Notes
<br /> ug4 micrograms per titer(parts per billion)
<br /> TPH total petroleum hydrocarbons EDS ethylene drbromrde 1 2 DCA 1,2-drehloroethane
<br /> DIPS dr-isopropyl ether,TAME cert amyl methyl ether,TBA tert butanol alcohol,ETBE ethyl tert butyl ether,MTBE methyl tertiary butyl ether
<br /> NA not analyzed ND not detected
<br /> < indicates constituents were not detected at a concentration greater than the reporting limit shown
<br /> 1 unmodified or weakly modified gasoline is significant
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<br /> Advanced GeoEnvironmental,Inc
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