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City of Guelph
Home » Construction » Construction notice: Monitoring well installation – Mollison Park

Construction notice: Monitoring well installation – Mollison Park

Notice Date: October 16, 2026

What’s Happening:

The City of Guelph’s Water Services Department will be installing a new groundwater monitoring well in Mollison Park.

Why:

This work will help improve understanding of the local geology and groundwater conditions in an area that contributes to the City’s drinking water supply. Information collected from the monitoring well will help the City better understand and manage its groundwater resources. The well will be used exclusively to monitor groundwater levels and collect groundwater information. It will not be used for water pumping or water supply purposes.

When:

Drilling of the monitoring well is tentatively scheduled to begin on October 26, 2026, and is expected to take approximately three to four weeks to complete, weather permitting.

Pedestrian access

To ensure public safety during drilling activities, the grassy area immediately south of the Tanager Drive entrance to Mollison Park will be temporarily closed to pedestrians (see highlighted area on the map below).

The Tanager Drive park entrance will remain open, and pedestrians will continue to have access to the remainder of Mollison Park throughout the construction period.

City services

There will be no interruptions to City services during the monitoring well installation.

Waste collection schedules will not be affected. Please continue to place your green, blue, and grey carts at the curb as usual on your regular collection day.

Map of Construction Area

Map of the Mollison Park monitoring well construction areas

Thank You for Your Patience

The City appreciates your patience, understanding, and cooperation as we complete this important groundwater monitoring project.

Project details and updates will be posted at guelph.ca/construction.

For More Information

For more information about the project, or if you require this document to be provided in an alternative format as per the Accessibility for Ontarians with Disabilities Act (2005), please contact:

Jonathan Munn
Hydrogeologist & Risk Management Inspector
Water Services, Environmental Services
Mobile: 519-827-4739
Email: [email protected]