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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, California
<br /> Sample Sample Ground Screen TPH as Ethyl- MTBE78260jDIPEI D Date Water Interval Gasoline enzene oluene enzene Ylenes 8020 ETRE TAME TBA EDB 1,2-DCA Methanol Ethanal
<br /> Depth
<br /> 6-10-97 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 479000 4,300 21,000 3,600 4,400 ND<1000 ND<1000 ND<1000 ND<5000 NA NA NA NA
<br /> 12-17-97 4902 270,000 38,000 47,000 4,300 22,000 3,400 3,400 ND<5 ND<5 ND<5 1,700 NA NA NA NA
<br /> 3-12-98 4559 2109000 41,000 479000 4,100 20,000 4,100 3,700 ND<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 2,300 ND<2000 ND<2000 ND<2000 ND<10000 NA NA NA NA
<br /> 9-09-98 4088 210,000 27,000 149000 4,400 22,000 9,300 4,100 ND<100 ND<100 ND<100 ND<500 NA NA NA NA
<br /> 12-22-98 4034 170,000 24,000 24,000 39200 18,000 39100 3,200 ND<85 ND<85 ND<85 ND<425 NA NA NA NA
<br /> W-3A 3-26-99 3864 43-63 170,000f 26,000 31,000 2,900 16,000 ND<7000 4,400 ND<130 ND<130 NDI-130 ND<650 NA NA NA NA
<br /> 6-14-99 3739 140,000 22,000 269000 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 69400 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 659000 7,200 79500 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 69000 3,800 1,200 6,200 8,600 9,100 ND<170 NIX170 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 D<50N 78 ND<10000 ND<2500
<br /> 5-29-01 3739 39,000 3,900 3 300 970 6,400 1,200 19100 ND<10 ND<10 ND<10 ND<50 D<10 54 ND<5000 ND<500
<br /> 6-21-00 3703 300,000 23,000 40,000 2,300 12,000 360,000 440,00 ND<13000 ND<13000 ND<13000 ND<65000 D o 300 ND<13000 ND<260000 ND<65000
<br /> 10-27-00 3804 - - -
<br /> VW-313 2-07-01 19-39 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NIX ND<I ND<I ND<1 ND<5 ND<50 ND<200 ND<1 ND<1
<br /> 5-29-01 37 27 240,000 19,000 32,000 1,900 10,000 180,000 20,00 ND<1000 NIX1000 ND<]000 ND<5000 Dg000 ND<1000 D<500,000 NIK5000
<br /> Notes
<br /> yg4 micrograms per liter(parts per billion)
<br /> TPH total petroleum hydrocarbons EDS ethylene dibromide i 2-DCA 1 2-dichloroethane
<br /> DIPE di isopropyl ether TAME tent amyl methyl ether,TBA tert butanol alcohol ETBE ethyl tert-butyl ether,MTBE methyl ternary 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 /> t unmodified or weakly modified gasoline is significant
<br /> Advanced GeoEnvironmental,Inc
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