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Niagara-on-the-Lake Wastewater Treatment Plant
All Niagara Region projects

About the Project

A new treatment facility is being built approximately 800 metres west of the existing plant located on Lakeshore Rd. in Niagara-on-the-Lake. The new plant will:

  • Operate more efficiently
  • Help protect the environment
  • Reduce noise and odours
  • Ensure sufficient treatment capacity for the next two decades

The new Niagara-on-the-Lake Wastewater Treatment Plant is functioning at a high efficiency. It's been accepting wastewater since August 2019 and meets Provincial compliance standards.

Staff have been working with the consultant, contractor and the Ministry of the Environment, Conservation and Parks on any deficiencies. Repairs are underway and staff approximate that the new facility will be commissioned soon with an official opening in 2020.


The estimated cost of this project is approximately $43.2 million. Funding is equally split between three levels of government: Government of Canada (Building Canada Fund - Major Infrastructure Component), Province of Ontario (Building Together) and Niagara Region.

Decommissioning of the Current Facility

A separate Environmental Assessment was necessary to determine the preferred alternative for decommissioning of the existing Niagara-on-the-Lake Wastewater Treatment Plant.

Public and stakeholder input was requested as part of the decommissioning environmental assessment.

Project Timeline

June 2014 - Completed
Pumping station upgrades and road work

June 2014 - Completed
Effluent outfall extension

November 2014 to March 2019 - Completed
Construction of the new wastewater treatment plant

March 2019 - In progress
Testing and commissioning



Tony Cimino
Associate Director, Water Wastewater Engineering
905-980-6000 ext. 3235
Email Tony Cimino

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Treatment Plant Concept
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