Water Capacity Constraints Are Halting Growth in Waterloo Region
New development approvals across the region have paused due to water servicing limitations in the Mannheim service area. The industry is aligned on the issue — and ready with solutions.
A Coordinated Industry Response
Reopen Waterloo Region is a joint industry alliance advancing water capacity solutions to get Waterloo Region open again.
Waterloo Region Leaders across construction, development, and the real estate sectors have come together to present a unified, solutions-focused response.
This coalition is aligned on the urgency of the issue and committed to working collaboratively with Regional Council and the Province to move forward.
Our mission is to:
Restart Development
Restore Investment
Renew Growth & Prosperity
Coalition Update: August 2026
Significant time and effort across the coalition and within the broader community has been dedicated to addressing the Region’s water‑capacity constraint at Mannheim. Our industry partners have worked together with a shared purpose: to advance solutions, restore development activity, and support sustainable growth across Waterloo Region.
Across the coalition, industry experts contributed technical expertise, operational experience, and on‑the‑ground insights from member companies. Through a unified commitment grounded in collaboration, we exchanged information and provided coordinated input into the Region’s efforts. Our collective work has focused on ensuring Waterloo Region reopens for development, building, and investment—to deliver the housing supply our communities urgently need.
This sustained effort demonstrates the strength of industry partnership and the determination of our organizations to advocate for practical, evidence‑based solutions that support long‑term, sustainable growth—all of which has contributed greatly to getting us to where we are today.
Access Water Capcity Updates via Region of Waterloo:
The Issue!
In December 2025, the Region of Waterloo confirmed a water capacity constraint in the Mannheim service area—impacting Kitchener, Waterloo, and parts of Cambridge, Woolwich, and Wilmot.
As a result, the Region has paused new servicing agreements, resulting in a de facto freeze on development approvals.
Tens of thousands of new housing units currently in the planning process are at risk of delay.
Time is of the essence. Continued delay will further erode housing supply, economic growth, employment stability, and investor confidence in Waterloo Region.
Why It Matters:
Economic & Community Impacts:
Reduced housing constraints, amplifying an exisiting and ongoing housing and development crisis
Higher construction costs, passed on to buyers and renters
Delayed growth-related capital projects and infrastructure investment, sue to loss of regional development charge revenues
Loss of skilled trades and construction workers to other jurisdictions
Increased legal exposure where existing service agreements guarantee capacity
Reduced economic competitiveness, reduced and talent attraction and a weakened economy for Waterloo Region.
Key Technical Concerns:
Industry stakeholders have identified several concerns with the current approach:
Introduction of a 20–30% resilience buffer without prior industry consultation or approval
Reliance on modelling based on extreme and unlikely scenarios
Use of non-transparent criteria to define “sustainable groundwater capacity”
Double-counting of risk factors already addressed through provincial permitting
Loss of up to 40% of intended capacity at the Mannheim facility due to overlapping constraints
Limited consideration of interim engineering solutions, such as pumping or system adjustments
A Practical Path Forward:
Viable solutions are available — and can be implemented quickly.
Implement a risk-based interim approach
Balance system resiliency with measured allocation to new developmentDeploy existing infrastructure funding
Utilize nearly $100M in available development charge reservesAdvance shovel-ready projects
Prioritize projects already identified in the Region’s capital planReassess water supply opportunities
Review past well studies and test production potentialExpand system connectivity
Strengthen regional interconnections to improve resilienceA justifiable methodology for allocating additional new capacity with a clear and consistent framework for implementation at the local level.
A return to normal permit issuance once a realistic resiliency target is achieved
Water Constraints - What It Means for Waterloo Region
Coalition Partners
Moving Waterloo Region Forward
The industry remains committed to working constructively with the Region of Waterloo and the Province of Ontario to FULLY resolve water capacity constraints.
The housing and infrastructure needs of our growing community demand timely, transparent, and practical solutions.