What is the CSO Control Environmental Assessment?
The purpose the Ottawa River Action Plan’s Project 3 is to reduce the frequency and volume of combined sewer overflows to the Ottawa River. Before proceeding to detailed design, the project must undergo a Municipal Class Environmental Assessment. Phase 1 of the Environmental Assessment asks the community to determine what level of CSO control is appropriate. Three options have been developed for public consideration. All three options will reduce overflows to two overflow events in the average year, but range in price from $40 million to $2.2 billion.
