Sherwood Park Water Hardness & Quality Report (2026)

Sherwood Park's drinking water is managed by Strathcona County, drawing from the North Saskatchewan River via the Strathcona County Water Treatment Plant on the river valley east of Edmonton. Water undergoes conventional coagulation, sedimentation, filtration, UV disinfection, and chloramination, fully meeting the Guidelines for Canadian Drinking Water Quality (GCDWQ). Hardness measures 209 mg/L (12.2 gpg) — classified as very hard by Health Canada, consistent with Edmonton's North Saskatchewan River supply and reflecting the same Rocky Mountain carbonate geology that makes central Alberta's water reliably very hard.

The North Saskatchewan River originates at the Saskatchewan Glacier in the Rocky Mountains near the Columbia Icefield, flowing through extensive Cambrian and Devonian limestone and dolostone in the mountain corridor before crossing the Alberta foothills and prairie. As the river traverses these calcareous formations and collects runoff from carbonate-rich prairie soils and Cretaceous shale weathering products, it accumulates dissolved calcium and magnesium. By the time it reaches Sherwood Park — downstream of Edmonton — the river carries the characteristic 200–210 mg/L hardness of the central Alberta plain.

At 209 mg/L, Sherwood Park homeowners experience regular scale build-up on kettle elements, showerheads, and inside hot water tanks — monthly descaling is typical. Hot water tank elements accumulate scale within one to two years; Strathcona County and Alberta Environment recommend annual tank inspection and flushing. A whole-home water softener is a common and practical investment in Sherwood Park — at this very hard water level, the cost savings in appliance longevity and maintenance justify installation within a few years.