The city wants to close one of the sewage treatment plants in an effort to save money. This would then require all sewage to be rerouted to a neighboring plant. Before moving forward with this plan, the Environmental Protection Agency (EPA) begins monitoring the water quality around the affected treatment plants. Why is it important for the EPA to monitor water quality around each sewage treatment plant?
A- Showing that the water quality is very high before the switch will support the city's decision to make the change.
B- Monitoring the environment ahead of time will allow the EPA to evaluate the impact of additional sewage being rerouted.
C- Monitoring water quality before the elimination of the second plant determines the sewage load that the environment can handle.
D- Data collection is not relevant to the city's decision as they will not be able to determine the effect until after the change has been made.