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- k and C* - The rate at which each contaminant is treated, and the background concentration for each contaminant will be different within a wetland and different values should be adopted for each contaminant;
- C** - Defines the baseflow background concentration for ephemeral wetland systems (ie. zero permanent pool volume) when the hydraulic loading of the wetland falls below the Threshold Hydraulic Loading. This value is introduced to represent the operation of an ephemeral wetland under baseflow conditions, and is only able to be adjusted if the permanent pool volume is set to zero. C** is normally lower than C*. For more information regarding the C* and C** properties, see The First Order Kinetic (k - C*) Model.
Tip Box
Where a permanent pool is present in the wetland, only a single background concentration C* applies. The parameters for C** and Threshold Hydraulic Loading will only be enabled when the permanent pool volume is set to zero.
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