2.4.2. Allocation of Regulatory Fines Based on Total Irrigation Water Applied

This allocation scheme simply suggests that each polluter (subarea) will be charged in proportion to the total volume of water applied (surface water + groundwater + recycled wastewater) on that subarea. Therefore, the cost to subarea *j* is

$$\Theta\_{\bar{j}} = F \frac{\mathcal{W}\_{\bar{j}}}{\sum\_{j \in \mathcal{N}} \mathcal{W}\_{\bar{i}}} \tag{10}$$

The drawbacks to this policy are the same as those of the prior policy, although, it does account for groundwater use that can add significant salt to the total salt discharged from each region, since the EC of groundwater is typically more than double that of applied surface water on the westside of the Valley, and more than four times the average EC of eastside water applications.
