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0 0 0 <br />Table 2 <br />Third Quarter 2013 Total Mass VOC Results and Compliance Summary <br />Austin Road Landfill <br />Contour Interval (ug/L) <br />1 -25 <br />25-26.91 <br />Average Concentration Across <br />13.00 <br />25.96 <br />Contour(ug/L) <br />Aquifer Area (ft) <br />5,775,996.06 <br />253,364.83 <br />Aquifer Volume (ft) = Aquifer Area <br />231,039,842.40 <br />10,134,593.20 <br />x Thickness (40 feet) <br />Conversion to Aquifer Volume (L) _ <br />6,542,355,217.24 <br />286,981,275.64 <br />1 ft3 = 28.317 L/ft3 <br />Groundwater Volume (L) = (Aquifer <br />1,635,588,804.31 <br />71,745,318.91 <br />Vol x Porosity (0.25)) <br />Mass (kg) = (Avg Conc(ug/L). x GW <br />Vol(L) / 1,000,000,000) <br />21.26 <br />1.86 <br />otal VOC Mass (kg) 23.13 <br />'hreshold Limit (kg) 789.5 <br />Note: Aquifer area derived from Figure 2 isoconcentration map calculation. <br />