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TABLE 5 } ANALYTICAL RESULTS OF GROUND WATER SAMPLES EPA METHOD 8260 Modified Grant Line Gas & Food 2420 Grant Line Road, Tracy, California I (µg/l) Constituent I Date MW-I MW-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 01-30-98 <5 0 <5 0 <5 0 <50 <50 <5 0 -- -- I 06-18-98 <5 0 <5 0 <5 0 51 <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 60 80 <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 <10 <10 <10 <10 <10 <10 <10 <10 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 I 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 0 <10 <5 0 <5 0 <5 0 <5 0 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 I 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 0 <5 0 <5 0 <100 06-28-03 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <0 5 <50 I 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 I 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 chbromtde 09-19-02 NA NA NA NA NA NA NA NA (EDB) 12-19-02 NS NA NA NA NA NA NA NA I 03-12-03 NA NA NA NA NA NA NA NA 06-28-03 Notes µg11 Micrograms per liter I -- Not measured NS Not sampled . NA Not analyzed I I