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Wastewater, Wastewater Treatment
and Treatment Plant Tours


Halton Region has governmental responsibility for the treatment of Halton's wastewater. Learn more about our treatment plants, program activities and methods.

Halton Region's responsibility for treatment of wastewater

Halton Region is responsible for the treatment and management of wastewater. The Region owns and operates 7 Wastewater Treatment Plants. These treatment plants deal with 232,000 cubic metres of wastewater every day.

Locations of Halton Region's Wastewater Treatment Plants

Wastewater Treatment Optimization Program

Your wastewater travels through miles of sewer to arrive at one of Halton's Wastewater Treatment Plants.

The Wastewater Treatment Process

Halton Region is working to improve the environment. We have adopted an Optimization Program that addresses our needs to the Ontario Ministry of the Environment and Climate Change.

This Optimization Program involves all of the region's wastewater treatment plants. It aims to improve management of biosolids. It focuses on improving performance and energy efficiency.

Arranging Wastewater Treatment Plant tours

Wastewater treatment plant tours can be arranged by contacting Access Halton for the facility you would like to see. You will find location information on the interactive map, above. Facilities under construction will not be available for tours.

Tour participants should wear casual clothing and comfortable shoes or boots.


To learn more, or to get in touch with any treatment plant:

  • Call 311 (within Halton Region)
  • 905-825-6000
  • Toll Free: 1-866-442-5866
  • TTY: 905-827-9833
  • Email:
"pump station", wastewater