Utilities Kingston has released the 2025 annual reports on drinking water quality and wastewater treatment. These reports provide a transparent look at how our dedicated teams work to deliver clean, safe drinking water and responsibly manage and treat wastewater to protect public health and the environment.

Every day, our teams work to ensure high-quality drinking water that meets or exceeds Ontario’s strict health-based safety standards. Our drinking water systems use a series of filtration, treatment, monitoring, and backup systems to provide reliable, safe tap water to homes and businesses across Kingston’s urban area. We also operate the Sydenham Drinking Water System in South Frontenac Township.

At the same time, our wastewater treatment teams work diligently to safeguard local waterways, using advanced biological, chemical, and physical processes at our modern treatment facilities to remove pollutants before safely returning treated, resource-quality water to the environment.

We invite you to explore the reports and learn more about how we’re protecting Kingston Area water resources now and for the future.

Explore the reports

Water quality

Our drinking water quality reports provide detailed information on how we deliver clean, safe tap water to the communities we serve. These reports cover:

• Kingston Central Water Plant - serving most areas east of Little Cataraqui Creek
• Kingston West Water Treatment Facility - serving areas west of Little Cataraqui Creek
• Cana Well system - Cana Subdivision, in the former Pittsburgh Township
• Sydenham Water Treatment Plant - serving the village of Sydenham in South Frontenac Township

View the water quality reports

Wastewater environmental compliance

Our wastewater treatment reports outline how we manage and treat wastewater before safely returning it to the environment. These reports include data from:

• Cataraqui Bay Wastewater Treatment Plant - serving most areas west of Little Cataraqui Creek
• Ravensview Wastewater Treatment Plant - serving areas east of Little Cataraqui Creek
• Cana Wastewater Treatment Plant - Cana Subdivision, serving the former Pittsburgh Township
• City of Kingston Wastewater Collection System - serving the Kingston urban area

View wastewater environmental compliance reports

These reports are prepared in accordance with Ontario’s Safe Drinking Water Act and Environmental Compliance Approvals, ensuring we meet strict provincial regulations and uphold the highest drinking water quality and wastewater management and treatment standards.