Source Concentration

What is it?

A zone can be assigned a solute source concentration for all model cells over which it extends for the purposes of transport modeling.

How to use it:

Check the radio box next to ‘Source Concentration’. To apply an instantaneous (delta-function) source concentration, select the radio button next to ‘Instantaneous:’ and enter a value (units: ppm) in the text box provided. To apply a continuous concentration (i.e. constant in time), select the radio button next to ‘Continuous:’ enter a value (units: ppm) in the text box provided

To assign time-varying source concentration, check the radio box next to the ‘Transient’ button, and then LM click the ‘Transient button Check the radio box next to the ‘Transient’ button to open the Transient Data for Lake Concentration sub-menu

By default, the source extends down through the entire aquifer thickness. Partial penetration of zones (see Elevation tab) can be used to limit the vertical extent of the contaminant source.