Benzene
(µg/kg, ppb) 
Health Based New Jersey Ground Water Quality Criteria, C _{ gw } (µg/L, ppb)


(µg/kg, ppb) 


(µg/kg, ppb) 


(µg/kg, ppb) 


(µg/kg, ppb) 


(µg/kg, ppb) 


(µg/kg, ppb) 

Using the Slider Calculator Just click on a contaminant to calculate the soilwater partitioning result using default New Jersey Department of Environmental Protection parameters. Cleanup objectives for other regulatory agencies or for sitespecific conditions can be calculated by varying the input parameters. More than just a simple calculator, the sliders can be adjusted to determine the sensitivity of the soilwater partitioning equation to specific parameters. This has many uses. For instance, it can be used to determine what soil organic carbon content would be required to produce a value above a detected concentration. A determination could then be made as to the likelihood of identifying soil organic carbon at such levels. The slider calculator is very versatile. For instance to view results for a Koc of greater than 1000 (L/kg), simply enter the desired Koc as the maximum value. Then move the Koc slider to the maximum value. Or to evaluate the influence of Koc over a wider range, simply enter a new maximum value and move the slider. The slider calculator can be used to determine the sensitivity of the soilwater partitioning equation. For instance the default value for benzene is 0.069 µg/kg. Yet even with a soil organic carbon content of 0.1 kg/kg (10 percent) the result is just 1.225 µg/kg. Soil Leachate or Groundwater Concentration Both the soilwater partitioning equation and SESOIL produce soil leachate concentrations. The resulting groundwater concentration would be lower due to dilution. At a minimum a dilutionattenuation factor (DAF) equation should be applied to produce a groundwater concentration. The slider calculator will be expanded in the next newsletter to include the USEPA DAF equation. For now you will need to multiply the results by the default DAF value of 13. 
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