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TABLE 2 - CONTINUED Analytical Results of Ground Water Samples by EPA Methods 8015MI8020 PACIFIC PRIDE - SOUTH EL DORADO STREET 3147 El Dorado Street, Stockton, California TPH as TPH as TPH as TPH as MTBE Benzene Toluene Ethyl- Xylenes Sample I D 1 sawle Gasoline Diesel Kerosene Motor Oil benzene Screen Interval Date EPA Methods 8015m/8020 12-20-99 ND<50 110 62 NA ND<O 5 15 0 5 ND<0 5 066 03-10-00 86 86 NA NA ND<0 5 2.4 ND<0 5 ND<0 5 ND<0 5 06-15-00 ND<50 79 71 NA ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 MW-4/ 09-14-00 63 5913 NA NA ND<0 5 0.56 ND<0 5 ND<0 5 ND<0 5 30 to 50 ft bsg 12-28-00 66 67" 58 NA ND<5 3 6 4.7 1.1 56 03-30-01 ND<50 18013 NA 270 ND<5 074 ND<0 5 ND<0 5 ND<0 5 06-27-01 ND<50 89' 110 NA ND<5 067 ND<0 5 ND<0 5 ND<0 5 09-26-01 ND<50 ND<50 ND<50 NA ND<5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 MW-5/ 12-28-00 65 140'3 81 NA ND<5 2.1 3 6 12 5.7 80 to 90 ft bsg 03-30-01 ND<50 210'3 NA 710 ND<5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 06-27-01 684 ND<50 ND<50 NA ND<5 4.8 5 3 81 09-26-01 ND<50 88' 51 NA ND<5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 MW-6 12-28-00 180 ND<50 ND<50 NA ND<5 15 18 6 6 28 20 to 40 ft bsg 03-30-01 ND<50 ND<50 NA ND<250 ND<5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 06-27-01 ND<50 ND<50 ND<50 NA ND<5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 09-26-01 ND<50 ND<50 ND<50 NA ND<5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 MW-7 12-28-00 67,000 3,500 2 2,800 NA ND<50 14,000 6,100 2,700 11,000 20 to 40 ft bsg 03-30-01 61,000 5,5002 NA ND<250 ND<300 11,000 3,500 2,000 7,100 06-27-01 55,0001 3,8002 3,300 NA ND<50 8,200 2,900 1,600 6,300 09-26-01 1 45,000' 1 2,8002 5,300 NA ND<100 6,700 2,300 1 1,700 1 5,600 NOTES All samples reported as micrograms per liter Cue) diesel range compounds are significant,no recognizable pattern,' gasoline range compounds are significant,3 oil range compounds are significant,` unmodified or weakly modified gasoline is significant NA Not Analyzed TPH total petroleum hydrocarbons MTBE methyl ten butyl ether Advanced GeoEnvironmental,Inc