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WWPCC mapWastewater upgrades project overview
We are upgrading our wastewater treatment plants to comply with the terms and conditions specified in the Environment Act licences.

In the short term, the upgrades will improve effluent quality to meet the interim City-wide reduction targets of 10% for phosphorus and 13% for nitrogen. The effluent disinfection, nutrient and ammonia control meets Provincial "pre-1970" water quality objectives for the Red River, Assiniboine River and Lake Winnipeg.

Based on long term growth projections, the upgrades to our treatment plants and processes will increase the capacity of the wastewater system to handle additional waste flows from a growing population and industrial sector until at least the year 2031.

Construction activities
As the upgrades to the wastewater plants begin, people who live near or travel past one of the plants may notice construction activity. The impacts of construction can include increased traffic to and from the site, heavy equipment moving about, noise and dust. We will manage these activities to prevent or minimize their impact on community activities, local residents, businesses and the environment.

Our practice for construction projects is to specify conditions for work-site management in the contract. Conditions would include traffic control plans, protocols for heavy equipment on-site, safety, hours of work and emergency plans to deal with environmental incidents and accidents. In addition, we may also require inspections, monitoring, activity and traffic scheduling, surface runoff control, dust control, refuelling practices, protocols to prevent leaks or spills and drip trays for equipment.

We will continue to provide wastewater services, including plant operations, at all times during construction.

Water pollution control centre project upgrades:

 

Overview of wastewater program Legend
Application for CSIF

 

Committed with no CSIF

 

Closely linked to CSIF project

 

Committed with planning of options still ongoing

 

Facility Existing treatment Future upgrades
West End Water Pollution Control Centre
  1. Primary treatment
  2. Secondary treatment
  3. Polishing pond
    - seasonal disinfection
    - seasonal nutrient reduction

Nutrient control
- biological nutrient removal

Ultraviolet disinfection
- year round

South End Water Pollution Control Centre
  1. Primary treatment
  2. Secondary treatment
  3. Ultraviolet disinfection
    - seasonal

Nutrient control
- biological nutrient removal

Inflow and infiltration control plan

Expansion - wet weather flow

Ultraviolet disinfection
- year round

Other related upgrades

North End Water Pollution Control Centre
  1. Primary treatment
  2. Secondary treatment

Centrate treatment
- nitrogen and phosphorus reduction

Nutrient control
- biological nutrient removal

Ultraviolet disinfection
- year round (not eligible for CSIF)

Wet weather flow treatment
- combined sewer overflow program

 

Other programs Existing treatment Future upgrades
Combined sewer overflow
  1. Interception
    > 40% of wet weather flow

Combined sewer overflow control program
- storage, transport to water pollution control centres
- primary treatment and disinfection

Biosolids
  1. Digestion
  2. Dewatering
  3. Land application

Range of options to meet future criteria

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This page was last updated on January 30, 2009