Notice of Completion: Environmental Assessment for Queenston - St. Davids Wastewater Servicing Strategy

Niagara Region has completed a Municipal Class Environmental Assessment to explore wastewater servicing alternatives for the Queenston Wastewater Treatment Plant service area and to select and develop a preferred servicing solution. The study examined two servicing options:

  • Upgrade the existing Queenston Wastewater Treatment Plant
  • Decommission the existing wastewater treatment plant and redirect flows through a new sewage pumping station and forcemain to either of the sewage pumping stations in St. Davids

Study recommendations

In accordance with Ontario’s Environmental Assessment Act, Niagara Region has planned this project under a Schedule “B” of the Municipal Engineers Association Class Environmental Assessment Process.

A Public Information Centre was held on Oct. 5, 2022, to share information about the study and encourage interested members of the public, local business communities and agencies to submit questions or concerns.

The study recommends upgrading the existing plant at the current location following an extensive evaluation process that included public engagement with local residents and businesses, the Town of Niagara-on-the-Lake and Niagara Region.

This solution requires no capacity increases, no new facilities or new land. The preferred solution will include:

  • ​Rehabilitation of the existing facility to maintain the plant’s average rated flow capacity of 0.5 megalitres per day while continuing to meet effluent quality requirements
  • Upgrades to meet Niagara’s State of Good Repair requirements, including upgrades to the treatment, electrical, control and site security systems, and repair of the existing access road

More information

A Project File Report, documenting the planning process undertaken and key elements of the preferred design, is available for public review on the Queenston - St. Davids Wastewater Treatment Strategy project page and on display for review at the following locations for 30 calendar days from June 5 to July 5, 2023 during normal business hours:

Clerks Department
Niagara Region
1815 Sir Isaac Brock Way, PO Box 1042
Thorold, ON L2V 4T7
905 980-6000 ext. 3222
Monday to Friday: 8:30 a.m. – 4:30 p.m.

Clerks Department
Town of Niagara-on-the-Lake
1593 Four Mile Creek Rd., PO Box 100
Virgil, ON L0S 1T0
905-468-3266 ext. 0
Monday to Friday: 8:30 a.m. – 4:30 p.m.

Written comments on this Project File should be submitted to:

Robert Stret, P.Eng., PMP
Project Manager
Water and Wastewater Services
Niagara Region
3501 Schmon Pkwy., PO Box 1042
Thorold, ON L2V 4T7
Fax: 905-685-5205

Rafiq Qutub
Project Manager
GM BluePlan Engineering Limited
1266 South Service Rd., Unit C31
Stoney Creek, ON L8E 5R9

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 (i.e., requiring an individual / comprehensive Environmental Assessment approval before being able to proceed), 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 contact information and full name for the Ministry.

Requests should specify what kind of order is being requested (e.g., additional conditions or a request for an individual/comprehensive environmental assessment), how an order may prevent, mitigate or remedy those potential adverse impacts, and any information in support of the statements in the request. This will ensure that the Ministry is able to efficiently begin reviewing the request.

Requests should be sent by email or in writing to:

Minister of the Environment, Conservation and Parks
Ministry of Environment, Conservation and Parks
777 Bay St., 5th Floor
Toronto, ON M7A 2J3

Director, Environmental Assessment Branch
Ministry of Environment, Conservation and Parks
135 St. Clair Ave. W, 1st Floor
Toronto, ON M4V 1P5

Personal information collected or submitted in writing at public meetings will be collected, used and disclosed by members of Regional Council and Regional staff in accordance with the Freedom of Information and Protection of Privacy Act. The written submissions including names, contact information and reports of the public meeting will be made available. Questions should be referred to the Privacy Office at 905-980-6000, ext. 3779 or

If you need any accommodations for a disability to attend and participate in meetings or events, please let us know in advance so that arrangements can be made in a timely manner. Contact the Accessibility Advisory Coordinator at 905-980-6000 ext. 3252 or

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