Addendum to the Burloak Water Treatment Plant Phase 2 Expansion
Town of Oakville, PR-2581B

About the study

To ensure all residents and businesses continue to have reliable access to high-quality drinking water, Halton Region has undertaken an Addendum to the Municipal Class Environmental Assessment (MCEA) Study completed in 2012 for the Burloak Water Treatment Plant (WTP) Phase 2 Expansion, in the Town of Oakville.

To meet future demands and support growth into 2031, the 2012 MCEA Study set out to increase water treatment capacity at the Burloak WTP from 55,000 m³/day to 165,000 m³/day, as identified in the 2011 Sustainable Halton Water and Wastewater Master Plan.

The MCEA process requires renewal for studies when a project has not commenced within ten years of its completion. This Addendum has re-evaluated the pre-treatment and residuals treatment processes presented in the 2012 MCEA Study, in the current environmental setting.

Process and consultation

The Addendum was carried out in accordance with the Municipal Engineers Association’s MCEA Process (October 2000, as amended 2007, 2011, 2015, 2023 and 2024), which is an approved process under Ontario’s Environmental Assessment Act. The Addendum to the 2012 MCEA Study documents the planning and decision-making process undertaken for this study.

The preferred alternative identified through the Addendum for the Burloak WTP Phase 2 Expansion includes particulate removal, primary disinfection, taste and odour control, and process residuals management. The treatment process components follow the same approach as outlined in the 2012 MCEA Study, with an updated approach to the process for residuals management.

Comments and more information

Starting September 3, 2025, and ending October 3, 2025, the Addendum to the 2012 MCEA Study is being placed on public record for a 30-day review period, in accordance with the requirements of the MCEA Process (October 2000, as amended 2007, 2011, 2015, 2023 and 2024). Subject to comments received during the review period and the receipt of necessary approvals, Halton Region intends to proceed with the detailed design and construction of the Burloak WTP Phase 2 Expansion. The Addendum to the 2012 MCEA Study is available online for public review through the Municipal Class Environmental Assessment Studies page on halton.ca.

If you wish to review the report in hard copy or require an alternative format to meet accessibility needs, please contact one of the project team members below.

Written comments or questions may be provided to Halton Region’s Project Manager, Christopher Pasquale, on or before October 3, 2025. In addition, a request may be made to the Ministry of the Environment, Conservation and Parks for an order requiring a higher level of study, or that conditions be imposed (e.g., require further studies), only on the grounds that the requested order may prevent, mitigate, or remedy adverse impacts on constitutionally protected Aboriginal and treaty rights. Requests on other grounds will not be considered. Requests should include the requester's contact information and full name.

Requests should specify what kind of order is being requested (request for conditions or a request for an individual/comprehensive environmental assessment), how an order may prevent, mitigate or remedy potential adverse impacts on Aboriginal and treaty rights, and any information in support of the statements in the request. This will ensure that the Ministry is able to efficiently review the request. The request should be sent by letter mail or email to:

Requests should also be copied to Halton Region’s Project Manager, Christopher Pasquale, by letter mail or email. For more information about this project, please visit the Municipal Class Environmental Assessment Studies page on halton.ca.

This notice was first issued September 3, 2025.