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r> r r r �-- r-- r r r r <br /> Figure E.8 <br /> RW-1 Hydrocarbon Concentrations <br /> 1,000,000 1000 <br /> General Long-Term Trend <br /> 100,000 100 <br /> m <br /> d <br /> w <br /> N <br /> N <br /> d <br /> C <br /> Y <br /> a 10,000 10 <br /> s <br /> --*-Benzene (ug" <br /> 2 <br /> w a - Toluene (ug/L) <br /> C Q <br /> Z --*-Ethyl benzene (ug/L) <br /> c1,000 1 -it Total Xylenes (uglL) <br /> t TPH-gasoline (rr <br /> c <br /> U c - TPH-diesel (mg/L) <br /> 0 <br /> X - Start of Bio Pilot Study <br /> 11.1 m 100 0.1 c <br /> v <br /> c Note: <br /> ° Only detected values shown. <br /> U <br /> 2 <br /> 10 0.01 <br /> 1 0.001 <br /> 1990 2000 2010 2020 2030 2040 2050 <br /> Appendix_D_E_Time_Swies_Chans2.x1s,E.8-RW-1 <br />