West Fargo Water Hardness & Quality Report (2026)

The City of West Fargo Public Works Department manages the drinking water utility, serving West Fargo in Cass County, North Dakota, with a population of approximately 40,000. West Fargo purchases all treated drinking water from the City of Fargo's utility system. Fargo sources raw water primarily from the Red River of the North, with alternate supplies from the Sheyenne River and Lake Ashtabula — a reservoir on the Sheyenne. Treatment occurs at Fargo's water plants, including the Northdale Water Treatment Plant, before distribution via West Fargo's infrastructure.

The Red River of the North watershed spans the bed of glacial Lake Agassiz, with tributaries draining flat till plains. Underlying geology features Ordovician-Silurian dolomites and Devonian limestones — including the Jefferson Formation — interspersed with Cretaceous shales, feeding the river through karst dissolution and glacial melt recharge. This limestone and dolomite geology imparts a hard supply character, with elevated dissolved calcium and magnesium from prolonged contact with carbonate rocks, moderated somewhat by the river's low residence time.

Hard water in West Fargo leads to scale buildup in water heaters, dishwashers, washing machines, and pipes, reducing efficiency and lifespan. Kettles and fixtures develop limescale rings, and soap lathering is less effective, often requiring more detergent. Maintenance involves periodic vinegar descaling, installing drain screens, and checking water heater elements annually; a water softener is recommended for households to prevent spotting on glassware and improve cleaning. West Fargo's water meets all EPA and North Dakota Department of Health standards; Fargo's treatment includes coagulation, sedimentation, filtration, and chloramination for disinfection.