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' TABLE 4 <br /> HISTORICAL ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> ' EPA METHODS 8015M/8021 <br /> Former Chase Chevrolet (Madison)Facility <br /> 423 North Madison Street, Stockton, California <br /> ' (pg/1) <br /> ' 1"0�pon SDa ee IDetopth <br /> TPH-g TPH-d TPH-mo MTBE Benzene Tolucne' benzene Xylene <br /> LLS <br /> Water <br /> MW-20B 08-12-98 1632 <50 710 520 NA <0 5 056 <05 <0 5 <br /> (50-55) 11-03-98 1762 <50 140 <250 <50 <05 <05 <0 5 <0 5 <br /> 02-02-99 17 It <50 120 <250 <50 <05 057 <0 5 <0 5 <br /> 05-05-99 1615 140 190 <250 <50 65 21 53 25 <br /> ' 08-11-99 1680 54 <50 <250 <50 061 17 069 27 <br /> 11-09-99 1790 490 290 330 <50 063 <05 27 26 <br /> 02-08-00 1743 <50 210 <250 <50 <0 5 <05 <0 5 <0 5 <br /> 05-1000 1554 <50 190 <250 <50 <05 <05 <0 5 <0 5 <br /> 08-21 00 1664 <50 <50 <250 <50 <05 <05 <0 5 1 7 <br /> ' <br /> 11-2800 1773 <50 61 <250 <50 <0 5 <05 <05 <0 5 <br /> 02-2801 1703 <50 <50 <250 <50 <05 <05 <05 <0 5 <br /> 05-21 01 1704 <50 <50 <250 <50 <05 <05 <05 <05 <br /> 08-1601 1796 <50 <50 <250 <50 <05 <05 <05 <0 5 <br /> 11-14-01 1891 <50 <50 <250 <50 <05 <0 5 <05 <0 5 <br /> 02-13-02 1797 <50 <50 <250 <5 0 <05 <0 5 <05 <0 5 <br /> 05-16-02 1820 <50 <50 <250 <50 <05 <0 5 <05 <0 5 <br /> 09-30-02 1935 NS NS NS NS NS NS NS NS <br /> MW-21B 08-12-98 1504 2,600 1,600 <250 NA 20 35 67 27 <br /> • (48-53) 11-03-98 1644 2,200 1,600 320 <50 12 12 49 26 <br /> 02-02-99 1587 19300 1,200 <250 <50 80 <0 5 49 13 <br /> 05-05-99 1566 19300 700 <250 <50 86 17 29 28 <br /> 08-11-99 1582 1,400 700 <250 <50 <1 15 16 86 <br /> ' 11-09-99 1670 <50 <50 <250 <50 <05 <05 <05 <0 5 <br /> 02-0800 15 67- 800 460 330 60 24 <05 41 16 <br /> 05-10-00 1425 1,400 920 360 <50 <05 <05 1 1 63 <br /> 08-21-00 1425 1,200 1,100 <250 <50 <05 <05 11 056 <br /> 11-28-00 1612 730 360 <250 <50 <0 5 <0 5 11 3 9 <br /> ' <br /> 02-2801 1575 650 270 <250 <50 <0 5 <0 5 058 <0 5 <br /> 05-21-01 1583 930 630 <250 <50 <05 <05 057 <0 5 <br /> 08-1601 1671 680 1,100 250 <50 <05 <05 052 <0 5 <br /> 11-1401 1775 860 420 <250 <50 <05 <05 11 <0 5 <br /> 02-1302 1670 700 620 <250 <20 <05 30 <05 <0 5 <br /> ' <br /> 05-1602 1691 750 260 <250 <50 <0 5 <05 075 45 <br /> 09-30 02 18 11 NS NS NS NS NS NS NS NS <br /> Notes <br /> µg11 micrograms per liter <br /> ' TPH-g Total Petroleum Hydrocarbons quantified as gasoline <br /> TPH-d Total Petroleum Hydrocarbons quantified as diesel <br /> TPH-mo Total Petroleum Hydrocarbons quantified as motor oil <br /> NS Not sampled <br /> ' NA Not analyzed <br /> 1 <br /> 1 <br /> Advanced GeoEnvironmental,Inc <br /> 1 <br />