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4 Table 3. Historic Groundwater Chemical Data for Monitoring Wells Well No. Date Well Depth Depth to Casing elev. Water Elev. Floating TPHG Benzene Toluene Ethylbenzene Xylene Fuel Ox. TPHD Sampled (ft.) Water(ft.) (MSLft.)* (MSL ft.) Product (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L)* (ug1L.) MW1 9/122001 20.97 8.41 45.09 36.68 None ND ND ND ND ND ND ND MW1 12/142001 20.97 8.20 45.09 36.89 None ND ND ND ND ND ND ND MW1 3212002 20.97 7.99 45.09 37.10 None ND ND ND ND ND ND ND MW1 6212002 20.97 7.49 45.09 37.60 None ND ND ND ND ND ND ND MW1 9/302002 20.97 8.48 45.09 36.69 None ND ND ND ND ND ND ND MW1 12/152003 20.97 8.44 45.09 36.65 None ND ND ND ND ND ND ND MW1 3/82004 NM NM NM NM NM NS NS NS NS NS NS NS MW1 6252004 20.97 7.80 45.09 37.29 None NS NS NS NS NS NS NS MW1 9202004 20.97 8.43 45.09 36.66 None NS NS NS NS NS NS NS MWi 12232004 20.71 8.62 45.09 36.47 None ND ND ND ND ND ND ND MW2 9/12/2001 25.05 7.89 45.41 37.52 None ND ND ND ND ND ND ND MW2 12/142001 25.05 7.61 45.41 37.8 None ND ND ND ND ND ND ND MW2 3212002 25.05 7.44 45.41 37.97 None ND ND ND ND ND ND ND MW2 6212002 25.05 7.31 45.41 38.10 None ND ND ND ND ND ND ND MW2 9/302002 25.05 8.04 45.41 37.52 None ND ND ND ND ND ND ND ' 12/132003 25.05 7.95 45.41 37.46 None ND ND ND ND ND ND ND h7t 2 3/812004 NM NM NM NM NM NS NS NS NS NS NS NS MW2 6252004 25.05 7.22 45.41 38.19 None NS NS NS NS NS NS NS MW2 9202004 25.05 7.89 45.41 37.52 None NS NS NS NS NS NS NS MW2 171232004 24.75 8.15 45.41 37.26 None ND ND ND ND ND ND ND MW3 9/122001 24.81 8.19 46.01 37.82 None 58 ND ND ND ND ND 440 MW3 12/142001 24.81 7.95 46.01 38.06 None ND ND ND ND ND ND 170 MW3 3212002 24.81 7.62 46.01 38.39 None ND ND ND ND ND ND ND MW3 6212002 24.81 6.49 46.01 39.22 None ND ND ND ND ND ND 190 MW3 9/302002 24.81 8.32 46.01 37.73 None ND ND ND ND ND ND 900 MW3 12/122003 24.81 8.30 46.01 37.71 None ND ND ND ND ND ND ND MW3 3182004 24.48 8.03 46.01 37.98 None ND ND ND ND ND ND 56 MW3 6252004 24.48 7.29 46.01 38.72 None ND ND ND ND ND ND 510 MW3 9202004 24.48 8.21 46.01 37.80 None ND ND ND ND ND ND 81011 MW3 12232004 24.75 8.50 46.01 37.51 None ND ND ND ND ND ND 130# Note: ND-None detected. NM-Not measured. NS-Not sampled. # - did not match the laboratory diesel standard or quantification as a hydrocarbon in the diesel range but not diesel. 1-21)CA and EDB data not included but were also ND. See laboratory reports. Fuel Ox.-Fuel oxygenates MTBE,ETBE,TAME,DTPE and TBA. i� Page 5 of 6