Ensuring safe drinking water in Nobleton

York Region continues to deliver safe, high-quality drinking water to Nobleton through its groundwater system. In 2024, the Region achieved 100% compliance with Ontario’s Drinking Water Quality Standards.

While Nobleton’s groundwater naturally contains more iron than lake water, current levels—though above aesthetic guidelines—pose no health risk. York Region uses safe chlorine levels to disinfect water and ensure it remains clean from source to tap.

To improve taste and colour, a new Nobleton Water Treatment Plant is in development, with construction expected to begin in early 2026 and completion in 2028.

Learn more

• Additional information about Nobleton’s water and the treatment plant in development can be found here.
• A letter from York Region’s Medical Officer of Health, Dr. Sarah Erdman regarding the safety of York Region’s water, is available to read here.
• Annual reports on York Region’s drinking water systems and water quality test results are shared at york.ca/DrinkingWater.
• To learn more about design and construction of the Nobleton Water Treatment Plant, visit york.ca/WaterConstruction