Selection of Modeling Code and Model Input

For low pH water samples from the plume, concentrations of carbonate species were not measured, but they should be low. In modeling, we assumed that TS-3 and MW-86 have a small amount of dissolved carbonate. As an example of the minteqa2 input files, Table 6.2 shows the input file for sample MW-86, prepared by using prodefa2. 

The overall aim is to use chemical analyses of the groundwater to determine what chemical reactions between the water and the host aquifers are probably occurring as the water moves along the aquifer. If the factors controlling the acidity and metal content are understood, predictions concerning them are easier to make. To do this we will  

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