Providing sustainable drinking water as the community grows is the Region of Waterloo's top priority. As we address the water capacity constraint in the Mannheim Service Area, these updates share our progress.  

In the April 23rd issue: 📆

Well renewal work restores capacity  
Progressing on design of pivotal solution
Repairs keep supply well in service

 

Renewal work restores capacity ahead of peak season  

Major renewal work on one of the Region’s 100+ supply wells will restore 20 litres per second of water capacity ahead of the peak demand season. The rehabilitation of Well K93 near Ottawa Street and Trussler Road in Kitchener involved adding a steel liner to the well casing, sealed with cement. The liner helps reinforce the casing, which is a tube that protects water quality and the structural integrity of the well. Once the remaining renewal work is complete, the well will be treated and tested before going back into service. 

 

Progressing on design of pivotal solution 

As work continues to prepare the Mannheim Water Treatment plant for the temporary side stream filtration system, Regional staff are making significant progress on the design of the system and how it will integrate with the plant. Teams met last week with representatives from suppliers, consultants, and contracting firms to review and gather input into the draft design and plan for building and operating the system. Careful consideration is being taken to ensure the proposed works do not impact the ongoing operation of the Region's largest water treatment plant. 

 

Repairs keep supply well in service

As work continues to stabilize the Mannheim Service Area and support growth, repairs on supply well K23 will keep this important water source available. The well, which is part of the Mannheim well fields, will have a pump replaced and transducer installed. The transducer is a device that provides data on water levels in real time, enabling the Region to closely monitor the water levels, especially during the summer months. This work helps stabilize the system in the Mannheim Service Area while other solutions are underway to add new capacity.

 

About the water capacity constraint  

The Region of Waterloo operates a complex water system that relies on groundwater and water from the Grand River, with over 100 wells and 50 treatment facilities. In the fall of 2025, through ongoing work and updates to the long-term strategy for water supply, a capacity constraint in the Mannheim Service Area was identified. This service area supplies water to Kitchener, Waterloo and parts of Cambridge, Woolwich, and Wilmot. The constraint is a limit on the Region’s ability to pump, store, treat, and distribute water needed to support future growth, while having capacity for critical maintenance requirements. We are working to accelerate solutions to ensure a safe and sustainable supply of water for generations to come.    

Previous issues: 

  • April 9: Capacity secured while protecting supply / Key infrastructure repairs to be finished this fall
  • April 2: Vital infrastructure back online / Development of schools, childcare, and faith institutions moves ahead 
  • March 26: Upgrades complete, testing begins / Consultant supports risk study  
  • March 12: Pivotal solution underway / Repairs wrapping up 
  • February 26: Funding approved for pivotal solution / Expediting repairs 

Council reports: 

  • April 8: General update on the work that's underway 
  • April 8: Additional information on the 1980 Policy on Water Taking in Wilmot Township 
  • March 11, 2026: General update on work underway  
  • March 11, 2026: Update on risk-based approach to staged development   
  • February 25, 2026: Clarifying Information   
  • February 10, 2026: 1980 Policy on Water Taking - Wilmot Township    
  • February 10, 2026: Regional Advisory Comments on Developments and Applications  
  • February 6, 2026: Pilot-Mannheim Temporary Side Stream Treatment   
  • January 28, 2026: Preliminary Water Capacity Constraint Solutions    
 

Email waterupdate@regionofwaterloo.ca to receive regular updates.   
Visit www.regionofwaterloo.ca/watercapacity for more information.