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Figure E.8 <br /> RWA Hydrocarbon Concentrations <br /> 1,000,000 1000 <br /> General Long-Term Trend <br /> t- <br /> 100,000 100 Benzene(ug/L) <br /> w <br /> d Toluene(ug/L) <br /> w <br /> —�—Ethyl benzene(ug/L) <br /> rn <br /> Total Xylenes(ug/L) <br /> 10,000 10 <br /> v <br /> ---*--Benzene,HS(ug/L) <br /> IM t 8 Toluene,HS(ug/L) <br /> t— <br /> N Ethyl benzene HS(ug/L <br /> d <br /> C <br /> O Z - Total Xylenes,HS(ug/L) <br /> w 1 000 I 1 J TPH-gasoline(mg/L) <br /> e <br /> tTPH-diesel(mg/L) <br /> it r <br /> _ E —TPH-gas,HS(mg/L) <br /> O ' <br /> U I C TPH-diesel,HS(mg/L) <br /> W <br /> 100 Start of Bio Pilot Study <br /> 1 <br /> m 0. b <br /> c <br /> m <br /> c <br /> 0 <br /> U <br /> 2 <br /> 10 0.01 F <br /> Note: <br /> Only detected values shown. <br /> 1 0.001 <br /> 1990 2000 2010 2020 2030 2040 2050 <br /> AX10011820275CO <br /> • • • • • • • • • • • • • • • • • • • • • • •• • • • • • • • • • • • • • • • • • • • <br />