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� � 1 <br /> 7 <br /> Ik <br /> 1 <br /> TABLE 4 <br /> HISTORICAL ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> ' EPA METHODS 8015M/8020/8021B <br /> Former Chase Chevrolet (Madison) Facility <br /> 423 North Madison Street, Stockton, California <br /> $ Locatpion <br /> Depth <br /> Sample 10TPH-g TPH-d TPH-m0 MTBE" Benzene Toluene Ethyl- Xylene <br /> ' benzene <br /> ' screen Date "rater � ' <br /> ' MW-19B 8 12-98 1580 <50 360 790 NA <05, <0 5 <0 5 <0 5 <br /> (485- 11-03-98 1713 <50 100 450 <50 <05 0 78 <05 072 <br /> 53 5) 02-02-99 1659 <50 130 <250 <50 <05 <0 5 <0 5 <0 5 <br /> 05-05-99 1559 <50 <50 <250 <5 0 1 2 4 6 1 5 68 <br /> 08-11-99 1636 <50 <50 <250 <50 068 22 1 3 51 <br /> ' 11-09-99 1741 <50 <50 <250 <5 0 <05 ' <0 5 <05 <0 5 <br /> 02-08-00 1690 <50 53 <250 <5 0 <05 <0 5 <05 <0 5 <br /> 05-09-00 1500 <50 <50 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> 08-21-00 1611 <50 <50 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> ' <br /> 11-28-00 1724 <50 71 <250 <50 <05 <0 5 <0 5 <0 5 , <br /> 02-28 01 1647 <50 <50 <250 <5 0 <05 <0 5 <0 5 <0 5 <br /> 05-21-01 1657 <50 <50 <250 <50 <05 <05 <0 5 <0 5 <br /> 08-16-01 1745 <50 <50 <250 <50 <05 <05 <0 5 <0 5 <br /> 11-14-01 1838 <50 <50 <250 <50 <05 <05 <0 5 <05 <br /> ' 02-13-02 1742 <50 <50 <250 <50 <05 <05 <0 5 ; <05 <br /> 05-16-02 1765 <50 <50 <250 <50 <05 <05 <0 5 <05 <br /> 09-30-02 1883 NS NS NS N5 NS NS NS NS <br /> 12-02-02 1928 NS NS NS NS NS NS NS NS <br /> ' 02-21-03 1161 N5 NS NS NS NS N5 NS NS <br /> 05-08-03 1840 <50 <50 <250 NA <05 <0 5 <05 <0 S <br /> 08-07-03 1881 NS NS NS NS NS NS NS NS <br /> 10-30-03 1975 NS NS NS NS NS NS NS NS <br /> MW-20B 08-12-98 1632 <50 710 520 NA <05 056 <05 <0 5 <br /> ' (50-55) 11-03-98 1762 <50 140 <250 <50 <0 5 <0 5 <05 <0 5 <br /> 02-02-99 1711 <50 120 <250 <50 <05 0 57 <0 5 <0 5 <br /> 05-05-99 1615 140 190 <250 <5 0 65 21 53 25 <br /> 08-11-99 1680 54 <50 <250 <5 0 061 17 069 27 <br /> ' 11-09-99 1790 490 290 330 <5 0' 063 <0 5 27 26 <br /> 02-08-00 1743 <50 210 <250 <5 0 <0 5 <05 <0 5 <0 5 <br /> 05-10-00 1554 <50 190 <250 <5 0 <0 5 <05 <0 5 <0 5 <br /> 08-21-00 1664 <50 <50 <250 <50 <0 5 <05 <0 5 1 7 <br /> 11-28-00 1773 <50 61 <250 <50 <0 5 <05 <0 5 <0 5 <br /> ' 02-28-01 1703 <50 <50 <250 <50 <05 <05 <0 5 <05 <br /> 05-21 01 1704 <50 <50 <250 <50 <0 5 <05 <0 5 <0 5 <br /> 08-16-01 1796 ,<50 <50 <250 <50 <0 5 <05 <05 <0 5 <br /> 11-14-01 1891 <50' <50 <250 <50 <0 5 <0 5 <05 <0 5 <br /> 02-13-02 1797 <50 <50 <250 <50 <05 ' <05 <0 5 <0 5 <br /> 05-16-02 1820 <50 <50 <250 <50 <05 <0 5 <0 5 <0 5 <br /> 09-30-02 1935 NS NS NS NS NS NS NS NS <br /> 12-02-02 1983 NS NS NS NS NS NS NS NS <br /> 02-21-03 1914 NS NS NS NS NS NS NS NS <br /> ' 05-08-03 1894 <50 <50 <250 NA <05 <0 5 <05 <0 5 <br /> 08-07-03 2031 NS NS NS NS NS NS NS NS <br /> 10-30-03 20 26 <50 <50 <250 <50 <05 <05 <05 <0 5 <br /> l , <br /> 1 14 1 <br /> Advanced GeoEnviro n mental,Inc <br />