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TABLE 3 ANALYTICAL RESULTS OF GROUND WATER SAMPLES EPA METHOD 8260 Modified Grant Line Gas & Food ' 2420 Grant Line Road, Tracy, Califomia Constituent Date MW-1 I MW-2 1 MW-3' 1 MW4 MW-5 !' MW-6 1 MW-7 MW-81 01-30-98 <5 0 <5 0 <5 0 <50 <50 <5 0 -- -- ' 06-18-98 <5 0 <5 0 <5 0 5.1 <5 0 <5 0 09-28-98 <250 <5 0 <5 0 <15 <15 <5 0 12-17-98 <50 <5 0 <5 0 <25 <25 <5 0 -- -- 03-25-99 <25 <5 0 <5 0 <15 <5 0 <5 0 <5 0 <5 0 06-21-99 <5 0 <5 0 <5 0 6.0 8.0 <5 0 <5 0 <5 0 09-20-99 <25 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 12-21-99 <5 0 <5 0 <5 0 <5 0 56 <5 0 <5 0 <5 0 ' 04-17-00 <1 0' <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 <1 0 04-18-00 NS NS NS <10 NS NS NS NS tertiary butyl 09-12-00 <10 <5 0 <5 0 <5 0 <13 <5 0 <5 0 <5 0 ' alcohol(TBA) 12-19-00 <13 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 03-23-01 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 06-22-01 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 09-17-01 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 ' 12-26-01 <25 <25 <25 <25 <25 <25 <25 <25 03-21-02 <10 <5 0 <5 O <10 <5 O <5 0 <5 0 <5 O 06-21-02 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 ' 09-19-02 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <100 12-19-02 NS <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 <5 0 03-12-03 <5 0 <5 0 <5 0 <5 0 <5 O <5 0 <5 0 <100 ' 06-28-03 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <0 5 <50 12-26-01 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 03-21-02 <1 0 <0 5 <0 5 <1 0 <0 5 <0 5 <0 5 <0 5 ' 1,2- 06-21-02 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 dichloroethane 09-19-02 NA NA NA NA NA NA NA NA (1,2-DCA) 12-19-02 NS NA NA NA NA NA NA NA ' 03-12-03 NA NA NA NA NA NA NA NA 06-28-03 12-26-01 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 03-21-02 <1 0 <0 5 <0 5 <1 0 <0 5 <0 5 <0 5 <0 5 ethylene 06-21-02 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 <0 5 dibromide 09-19-02 NA NA NA NA NA NA NA NA (EDB) 12-19-02 NS NA NA NA NA NA NA NA ' 03-12-03 NA NA NA NA NA NA NA NA 06-28-03 Notes ' µg/1 Micrograms per liter Not measured NS Not sampled NA Not analyzed I Advanced GeoEnv]ronmental Inc I