Greater Napanee Water Hardness & Quality Report (2026)

The Town of Greater Napanee is the municipal water utility serving Napanee and Sandhurst Shores in Lennox and Addington County, Ontario. Its supply is a mix of surface and groundwater, all treated at the A.L. Dafoe Water Purification Plant located at 75 East Street. This plant ensures reliable drinking water for residents and businesses. For additional needs, coin-operated filling stations are available at East Street, alongside a larger bulk station at 57 Enviro Park Lane, catering to domestic, agricultural, and contractor demands. Meter reading and billing are handled by the Infrastructure Services Department.

The region's geology, characterized by Paleozoic limestone and dolostone formations from the Ordovician and Silurian periods, significantly influences water quality. These bedrock types, including the Lindsay and Bobcaygeon Formations, are abundant in calcium and magnesium carbonates. As water interacts with these soluble rocks, either through percolation in aquifers or via runoff in the Napanee River watershed, these minerals dissolve. Groundwater sources, in particular, tend to be harder due to extended contact with the mineral-rich sediments.

This moderately hard water can lead to scale buildup in appliances like kettles and dishwashers, potentially reducing their efficiency and leaving spots on glassware. Over time, mineral deposits can affect plumbing fixtures, washing machines, and water heaters, increasing energy consumption and maintenance requirements. Homeowners often mitigate these effects by installing low-flow aerators, employing vinegar soaks for descaling, or installing a home water softener, which is common practice in Ontario for water in this hardness range. Residents can contact the utility with any issues or for after-hours emergencies.