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Coldwater Wastewater Treatment Plant Expansion

Township of Severn has hired Tatham Engineering Limited to undertake a Municipal Class Environmental Assessment (Class EA) for proposed upgrades to the Coldwater Wastewater Treatment Plant (WWTP) and the Main Sewage Pumping Station (SPS), located on Upper Big Chute Road as shown in the map below.

Map of the Coldwater Wastewater Treatment Plant and Main Sewage Pumping Station

The Class EA will identify and evaluate options for expanding the wastewater pumping and treatment capacity to accommodate anticipated growth in Coldwater.

About the Class Environmental Assessment

The Class Environmental Assessment (Class EA) establishes a planning and approval process for a variety of municipal infrastructure projects.

The Class EA will be completed in accordance with the Schedule C requirements of the Municipal Engineers Association (MEA) Municipal Class Environmental Assessment (October 2000, amended in 2007, 2011, and 2015).

Project update

Township of Severn has completed the Class Environmental Assessment (Class EA) for the expansion of the Coldwater Wastewater Treatment Plant (WWTP) and the Main Sewage Pumping Station (SPS).

The Class EA identified and evaluated options for increasing the wastewater pumping and treatment capacity to accommodate anticipated growth in Coldwater. 

The Class EA concluded that the preferred solutions are to expand the Coldwater WWTP and the Main SPS on their current sites. The Phase 1 expansion will increase the serviced population to approximately 3,750 people. In addition, the Township is to continue its efforts to reduce inflow and infiltration in the sanitary sewers to minimize the volume of wastewater to be treated. 

A Notice of Completion was issued on November 10, 2025. You can view the notice at the link below.

View the Environmental Study Report

An Environmental Study Report has been prepared to document the Class EA and present the assessment of alternatives and recommended design concept. The Draft Environmental Study Report is posted for review below.

Submit your comments

Comments can be submitted using the online comment form, or by e-mail to the contacts below. Comments will be accepted until December 12, 2025. Subject to comments received following the Notice of Completion and the receipt of approvals, the Township intends to proceed with the construction of the recommended projects as outlined in the Environmental Study Report.

Colt Newman
Township of Severn
Manager of Capital Projects
1024 Hurlwood Lane
Severn, Ontario, L3V 6J3
Tel: 705-325-2315 ext. 254
Suzanne Troxler
Tatham Engineering Limited
Senior Engineer
115 Sandford Fleming Drive, Suite 200
Collingwood, Ontario, L9Y 5A6
Tel: 705-444-2565 ext. 2089

Public engagement opportunities

Public Information Centre (PIC) No. 1 was held in-person and virtually on June 1 from 2:00 p.m. to 4:00 p.m. at the Coldwater Community Centre, 11 Michael Anne Drive.

Information presented at the PIC included:

  • wastewater infrastructure needs
  • alternative solutions for consideration
  • preliminary recommendations

The recorded presentation can be accessed through the following link.

View the recorded presentation

 

A second Public Information Centre (PIC) was held on May 29 in Coldwater to present the wastewater treatment and sewage pumping design options and the preliminary recommendations, and to acquire public feedback.

The presentation has been posted below for community review and comments. Comments were accepted until June 13, 2025, and were considered in the study. 

View the presentation

Frequently Asked Questions (FAQ)

The Municipal Class Environmental Assessment (Class EA) process applies to municipal infrastructure projects including roads, water, and wastewater projects. 

The Municipal EA (Schedule C) is a five phase planning process that:

  • identifies the problem or problems, and opportunities
  • provides "alternatives to" and "alternative methods" to address the problem
  • defines the types of impacts and the approaches that can be taken to ensure environmental protection

The final Class EA Report will include the following information as related to the proposed expansion of the Coldwater Wastewater Treatment Plant:

  • needs
  • opportunities
  • environmental impacts
  • costs
  • technical standards
  • social impacts

The final Study Report will help to guide the expansion of water and wastewater services in Coldwater and area in the coming years. 

You can share your comments by attending the upcoming PICs or by completing our online Comment Form

Please include your name, mailing address, and email address. 

Comment Form

Public Information Centres (PICs) will be held during the study to allow the public and our stakeholders to provide comments.

Details on upcoming PICs will be:

  • posted on this page when confirmed
  • shared on our News and Notices page
  • sent directly to our stakeholder contact list

Input from the public and stakeholders will be reviewed and considered throughout the Class EA process. With the exception of any personal information, all comments received during the Class EA will be documented and included as part of the final Study Report. 

The project duration will depend on the schedule, the potential impacts of the project, and the level of consultation required. Typically, a Schedule C Class EA is completed within 18 to 24 months, but it can take longer.

After the final Class EA Study Report has been approved, the project will proceed to the implementation phase, which includes the detailed design and construction phases of the expansion of the Coldwater Wastewater Treatment Plant. 

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