Windsor Tap Water

Water provider: City of Windsor Water Services (Windsor, ON)

Our recommendation

Premium filter strongly recommended

Your water has contaminants that require stronger filtration (heavy metals, PFAS, or limits exceeded). Reverse osmosis is the recommended tier.

See recommended water filters →

What is in the water

Trihalomethanes (THMs)

Detected

Disinfection byproducts formed when chlorine reacts with organic matter. Long-term exposure linked to cancer risk.

Reported: ~30 ug/L

Chlorine

Within limits

Added to disinfect water. Generally safe at treatment levels but reacts with organic matter to form disinfection byproducts.

Reported: distribution residual maintained after treatment

PFAS (forever chemicals)

Detected

Per- and polyfluoroalkyl substances. Bioaccumulate in the body. Linked to cancer, immune effects, and hormone disruption.

Reported: active PFAS monitoring is ongoing because of the Detroit River source and cross-border industrial legacy

Source

Data from the City of Windsor Water Quality and Treatment (2024). Last reviewed 2026-05-25.

Note: Contaminant levels vary by address (older plumbing can leach lead even when the source water does not), sampling location, and time of year. The figures above reflect utility-wide averages from the most recent public report. If you have specific health concerns, request a full report from your utility or test your own tap water.

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