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Figure E.1 <br /> 0-1 Hydrocarbon Concentrations <br /> 1,000,000 1000 <br /> r2:1ong-Term Trend <br /> t <br /> 100,000 100 Benzene(ug/L) <br /> tToluene(ug/L) <br /> CD <br /> — Ethyl benzene(ug/L) <br /> N <br /> —Total Xylenes(ug/L) <br /> C — Benzene,HS(ug/L) <br /> Y <br /> 10,000 10 .2 —8 Toluene,HS(ug/L) <br /> pt H — Ethyl benzene HS(ug/L <br /> N d —Total Xylenes,HS(ug/L) <br /> O Z <br /> �—TPH-gasoline(mg/L) <br /> 1 J —TPH-diesel(mg/L) <br /> 1,000 <br /> M TPH-gas,HS(mg/L) <br /> U —TPH-diesel,HS(mg/L) <br /> c <br /> O c NAPH Thickness(feet) <br /> U O <br /> X ''9� Start of Bio Pilot Study <br /> LU <br /> 100 0.1 <br /> m <br /> m <br /> U <br /> C <br /> O <br /> U <br /> 2 <br /> 0.01 d <br /> 1p I— Note: <br /> Only detected values shown. <br /> 1 0.001 <br /> 1990 2000 2010 2020 2030 2040 2050 <br /> Appendm_D_E_Time_Senes_Charts.xls,E.1_0-1 <br />