1. Executive Summary
The Ancaster Wells-a natural spring within the Dundas Valley Conservation Area-faces significant threats from the proposed Urban Boundary Expansion (UBE3). Increased impervious surfaces, groundwater extraction, and contamination risks endanger the springs ecological, cultural, and hydrological functions. We urge the City to require rigorous hydrogeological assessments, establish protective buffer zones, and deny or heavily modify UBE3 to safeguard this irreplaceable resource.
2. Background on Ancaster Wells
Located at Sulphur Springs Road in Ancaster, the Ancaster Wells have historical roots as a public utility well and natural spring site. Once promoted for its mineral water and therapeutic benefits, the site remains an important community feature and historical landmark. Managed by the Hamilton Conservation Authority, it continues to serve as a cultural and ecological asset to the region.
3. Environmental & Cultural Significance
The spring provides essential groundwater discharge that supports local ecosystems and is a focal point of historical, cultural, and Indigenous heritage. It serves recreational, photographic, and educational functions and is part of a broader network of hydrological features within the conservation area.
4. Assessment of UBE3 Impacts
The proposed development would introduce impervious surfaces that restrict natural groundwater recharge. The area is also vulnerable due to its karst geology, increasing the risk of aquifer contamination and hydrological disturbance. Existing developer studies are insufficient and call for detailed on-site assessments. Construction could result in flow reduction, contamination, or loss of spring function.
5. Applicable Policy & Regulatory Framework
Ontario's Provincial Policy Statement (PPS 2020) and Hamilton's Official Plan require the protection of groundwater recharge areas and culturally significant features. UBE3 conflicts with these regulations and fails to meet required environmental impact thresholds.
6. Recommended Measures
A) PreApproval Actions:
- Require detailed hydrogeological studies
- Define a minimum 120 m buffer zone
- Mandate best-practice stormwater management
B) Policy Instruments:
- Designate conservation overlay zones
- Secure easements or conveyances for protective land
C) Monitoring:
- Install quarterly monitoring programs
- Form a stakeholder oversight committee
D) Alternative Strategy:
- Focus future growth on urban infill, not boundary expansions.
7. Conclusion & Call to Action
The Ancaster Wells represent a unique intersection of natural heritage and community value. Without adequate protections, UBE3 could irreversibly damage this site. We call on Hamilton City Council to halt or heavily revise UBE3 until rigorous hydrogeological, environmental, and heritage assessments have been completed and public protections secured.
Prepared by:
Friends of the Ancaster Springs -
Ancaster Wells - SaveOurSpring.ca Ancaster, Ontario
Date: July 20, 2025