Moncton Water Hardness & Quality Report (2026)

The City of Moncton Water Utility provides water for more than 140,000 people across Moncton, Dieppe, and Riverview in New Brunswick, Canada. Their water comes from the Petitcodiac River, a tidal river fed by upstream tributaries, and is processed at the Irishtown Water Treatment Plant. This facility ensures the water drawn from the Petitcodiac River watershed meets provincial standards before distribution.

The watershed itself is part of the Appalachian Uplands, characterized by Carboniferous sandstone and shale formations like the Horton and Hopewell Cape Groups. These sedimentary rocks are covered by thin soils and glacial deposits, which allow water to run off quickly. This rapid runoff limits the amount of minerals the water picks up, especially since there aren't significant limestone deposits or carbonate aquifers in the area. The result is a very soft water supply, with naturally low mineral content.

Homeowners will find this soft water is kind to their plumbing and appliances. You won't see much scale buildup in pipes or on fixtures, and your water heater and dishwasher will likely last longer and run more efficiently. Cleaning and laundry will also require less soap and detergent. Because the water is already so soft, a water softener isn't necessary; instead, the utility monitors for potential corrosion in the distribution system. The water quality consistently meets New Brunswick guidelines, with low levels of minerals and other tested substances.