City Innisfil
Worth a closer look
- Over the last 4 years
- 8 over-limit tests out of 14,181 municipal tests
- 25 incident records
How to read these numbers
Town-water counts above are for municipal residential systems only — not every school or private system in the area.
They cover over the last 4 years of provincial open data we process (fiscal years: 2024-25, 2023-24, 2022-23, 2021-22).
Over-limit tests are flagged results among 14,181 municipal test results in that window — not a share of homes.
An incident record is a required system filing, not the same as an accident and not a count of taps affected.
Open a system page for timing, parameters, and official detail before drawing conclusions.
Water systems
Water system
Innisfil Lake Simcoe Drinking Water System
- Hardness · 136 mg/L as CaCO3 Hard water Longer-term only (too few samples from 2019 onward) · 2000–2019 · 49 samples
- Sodium level · 27.4 mg/L Above the diet notice level Longer-term only (too few samples from 2019 onward) · 2011–2019 · 21 samples
Water system
Innisfil Heights Drinking Water System
- Hardness · 196 mg/L as CaCO3 Very hard water Longer-term only (too few samples from 2019 onward) · 2012–2015 · 5 samples
Water system
Churchill Drinking Water System
Water system
Stroud Drinking Water System
Next steps
More detail
4 municipal town-water systems listed for this place.
Record grouping and evidence
- Municipality field from MRS Inspection Rating dataset (4 municipal residential systems)
- Municipal residential systems summarized: 4.
- Municipal counts cover 4 recent fiscal years: 2024-25, 2023-24, 2022-23, 2021-22.
- Municipal test results processed: 14,181 (8 over-limit tests).
- Incident records (municipal): 25.
Technical identifiers
- INNISFIL LAKE SIMCOE DRINKING WATER SYSTEM: system #220007472
- INNISFIL HEIGHTS DRINKING WATER SYSTEM: system #220005081
- CHURCHILL DRINKING WATER SYSTEM: system #220005063
- STROUD DRINKING WATER SYSTEM: system #220006204
Data limits
- This area summary groups systems by municipality field from public records. Exact household service boundaries are not available in this dataset.
- Town-water lists cover municipal residential systems (LMRS/SMRS). School and child-care building records appear when linked by place name.
- This city page lists municipal town-water systems only. School and child-care water records are separate — search by name.