Planning a Water Master Plan in 2025? Don't Miss This Critical Timing Window

As municipalities across Canada gear up for another busy construction season, one factor stands out as critical to the success of Water Master Plans (WMPs): timing of field data collection.

Canada's field season is notoriously short, and infrastructure projects, especially those involving water systems, must carefully account for weather and seasonal variations. While much of a WMP can be developed through desktop analysis, the importance of on-the-ground validation can't be overstated.

Many Master Plans require field testing, such as hydrant flow tests and C-factor evaluations, which are essential to ensure hydraulic models mirror real-world conditions. These activities are foundational for model calibration and help build stakeholder trust in the WMP's recommendations.

Additionally, some plans may include terrestrial and aquatic habitat assessments, making it even more important to align project timelines with seasonal availability. In years like this one, where Ontario experienced an unseasonably cold spring, the window for reliable fieldwork shrinks even more.

For municipalities and consultants alike, the message is clear: start early in the calendar year to maximize the narrow window for testing, especially if summer demand data is needed to reflect peak use scenarios. Proactive planning enables smoother execution and reduces the risk of delays. If you're planning a WMP this year, get in touch with our team now to ensure your schedule aligns with both field conditions and budget deadlines.

Whether you're embarking on a new WMP or calibrating a hydraulic model as part of a standalone project, early action in the year and seasonal awareness are your best tools for success.

Also, keep in mind the municipal budgeting cycle, as the recommendations from the WMP will update the Capital Improvement Plan project list. Typically the budgets are set at the end of the calendar year, which leaves no time between the end of the field season and budgeting deadlines to perform analysis, stakeholder engagement and consultation.

Ideal timing for a WMP

• Summer — WMP Project Kick Off.
• Summer/Fall — Conduct Field Work (Fire Hydrant Testing / C-Factor Testing).
• Fall/Winter — Hydraulic Model Calibration and Analysis.
• Spring — Develop Servicing Strategy and Alternatives, Develop CIPs and Conduct PICs.
• Summer (following year) — Finalize Servicing Strategy and Prepare for Year-End Budget.

One of our worst WMP scheduling experiences was when the client commenced a WMP that required hydraulic model calibration in the fall and the project Kick Off was scheduled for November. Due to the fact that field testing had to wait to be completed the following spring, the project was delayed with minimal work being done in the winter. This was a valuable lesson for us and the client that we now communicate to our prospective WMP clients.