We are developing a plan to manage the effects of combined sewer overflows (CSOs) on our rivers in an environmentally sound, sustainable and cost-effective manner.
Why does Winnipeg have CSOs?
The Winnipeg sewer system was originally a single pipe system combining all storm drainage, domestic and industrial wastewater in one pipe to the rivers. Today the single pipe combined system, which serves the older parts of the city, includes an interceptor system that carries all flow during dry weather to sewage treatment plants where it is cleaned and disinfected prior to being discharged to the rivers.
During wet weather events, the combined sewers system cannot handle all of the runoff that enters the system and it can flow at discharge points directly to the rivers.
These types of combined sewer overflows are common to older cities across Canada and worldwide. Since the 1960’s, cities, including Winnipeg, have been working to reduce these discharges.
What happens now?
We are working with consultants to develop a CSO Master Plan to set, and eventually achieve, control limits for CSOs to protect river quality. Developing a master plan includes:
- developing a hydraulic computer model of the combined and sanitary sewer system for the entire city,
- exploring standards and CSO control solutions in other cities,
- water quality and flow monitoring,
- identifying and evaluating cost effective control options,
- investigating potential pilot studies to test the effectiveness of CSO control options and how well they work in Winnipeg.
The CSO Master Plan will:
- identify and evaluate CSO control limits,
- provide a basis for responding to Provincial Environment Act Licence No. 3042,
- integrate work done to date and enhance our knowledge of the sewer system,
- recommend a long-term sustainable plan to reduce CSOs.
We will work with stakeholders to get their input on how to make choices and decisions about CSOs that meet licence requirements, our collective needs, and help us achieve the outcomes and future we want together.
Let us know what you think
We invite you or a representative of your organization to attend a public meeting about the City of Winnipeg’s Combined Sewer Overflow Master Plan. We are required to limit CSOs to meet provincial legislation.
Location: West End Cultural Centre, 586 Ellice Avenue
|Date||Monday, Sept 14, 2015||Tuesday, Sept 15, 2015|
|Registration and coffee||9:00 – 9:30 am||5:30 – 6:00 pm|
|Presentation||9:30 – 10:00 am||6:00 – 6:30 pm|
|Question & answer period||10:00 – 11:00 am||6:30 – 7:30 pm|