Water source & treatment
The 2025 town report describes membrane ultrafiltration and colour-removal treatment when needed, followed by primary and secondary chlorine disinfection. It notes that fluoride has not been added since March 2016. Operational figures are annual-monitoring ranges; some instrument readings require the report's calibration and analyzer context. They are not a single household measurement or a claim that an untreated Georgian Bay intake has the same quality as the municipal supply.
What this means for your home
For a town-connected home, assess the actual tap-water concern and existing plumbing before adding equipment. For cottages and properties on wells or private intakes, use laboratory testing of that source and review the complete treatment setup. The district health unit supplies private-water sampling guidance and collection locations. Seasonal use, accessibility, winterization and maintenance frequency can materially affect equipment choices, so include them when discussing a property outside the town network.
Profile scope
Town of Parry Sound municipal treatment system, which also supplies McDougall–Nobel; surrounding district wells and intakes differ.
Sampling context
- Free chlorine: 0.776–2.976 mg/L. 2025 treatment-facility discharge continuous-monitor range; 8,760 reporting entries. Not a household annual average. Source report
Official sources
- Town of Parry Sound — Drinking Water Systems Annual Report (2025)
- Town of Parry Sound — Water and Wastewater Reports
- North Bay Parry Sound District Health Unit — Private Drinking Water Testing
Photograph credit
Parry Sound waterfront, Ontario. Tango7174 · Wikimedia Commons. CC BY-SA 4.0. Resized and converted to WebP; may be displayed cropped.