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I 1 I R � � r TABLE 5 I. • HISTORICAL ANALYTICAL RESULTS OF GROUND WATER SAMPLES ' EPA METHODS 8015M/8021 Former Chase Chevrolet (Madison) Facility 423 North Madison Street, Stockton, California ' (µg/1) SamLo cation Sample le Depth TPF-g TPI-I�d TPH-mo , MTBE Benzene Toluene benzene EXy screen Da Water ' MW-8 06-03-94 27 55 <50 NA NA NA <0 5 <0 5 <0 5 <0 5 (22-42) 08-05-94 27 10 <50 NA NA NA <0 5 <0 5 <05 <0 5 I e 12-20-94 2802 <50 NA NA NA <0 5 <0 5 <05 <0 5 05-11-95 2432 <50 NA NA NA <0 5 <0 5 <05 <0 5 ' 10-05-95 2336 <50 <50 <250 NA <0 5 "<0 5 <05 <0 5 02-08-96 23 16 <50 <50 <250 NA <05 <0 5 <05 <0 5 I 05-07-96 2139 <50 <50 <250 <50 <05 <0 5 <05 <0 5 , 08-07-96 2091 <50 <50 <250 50 <05 <0 5 <05 <0 5 11-05-96 2156 <50 <50 <250 <50 <0 5 <0 5 <05 <0 51 ' 02-04-97 1658 <50 <50 <250 <50 <05 <0 5 <05 <0 5 05-06-97 1878 <50 61 <250 <50 <05 <0 5 <0 5 <0 5 08-05-97 1862 <50 <50 <250 <50 <05 <0 5 <05 <0 5 ' 11-04-97 1946 <50 <50 <250 <50 <0 5 <0 5 <05' <0 5 ' 02-04-98 1617 <50 <50 <250 <50 <05 <0 5 <05 <0 5 02-02-99 15 81 <50 <50 <250 <5 0 <05 <0 5 <05 <0 5 02-08-00 1617 <50 <50 <250 <50 <05 <0 5 <05 <0 5 05-09-00 1442 NS NS NS NS NS NS NS NS 08-21-00 1524 NS NS Ns NS NS NS NS NS 11-28-00 1659 NS NS NS NS NS NS NS NS 02-28-01 1592 NS NS NS NS NS NS NS NS 05-21-01 1580 <50 <50 <250 <50 <05 <0 5 <05 <0 5 ' 08-16-01 1643 NS NS NS NS NS NS NS NS 11-14-01 1756 NS NS NS NS NS NS NS NS 02-13-02 1681 NS NS NS NS NS NS NS NS 05-16-02 1681 <50 <50 <250 <50 <05 <0 5 <05 <0 5 ' 09-30-02 1778 NS NS NS NS NS NS NS NS 12-02-02 1846 NS NS NS NS NS NS NS NS 02-21-03 1782 NS NS NS NS NS NS NS NS 05-08-03 1786 <50 <50 <250 NA <05 <0 5 <05 <0 5 08-07-03 1 18 67 1 NS NS NS NS NS NS NS NS ' r 1 + i I ' Advanced GeoEnvironmental,Inc 1 I { I