Clawson Water Hardness & Quality Report (2026)

Clawson receives its water supply from the City of Clawson Water Department. The utility draws from the Detroit River, a significant waterway that flows through Michigan's Lower Peninsula. This water is then treated and distributed through an extensive system, ensuring service to both residential and commercial customers within the municipality of Oakland County, Michigan. The entire operation, from sourcing to delivery, is managed to maintain the flow of potable water throughout the city.

The geological foundation beneath Clawson plays a crucial role in the water's characteristics. The region is underlain by Paleozoic bedrock, specifically Devonian and Carboniferous limestone and dolomite formations. As water percolates through these mineral-rich layers, it naturally dissolves significant amounts of calcium and magnesium. This process is the direct cause of the hard water typically found across southeastern Michigan, including Clawson.

Homeowners in Clawson will likely notice scale buildup in appliances like water heaters, kettles, and within pipes over time due to the water's hardness. You might find that soaps and detergents aren't as effective, requiring more product and potentially leaving residue on dishes and laundry. This mineral accumulation can also shorten the lifespan of appliances such as dishwashers and washing machines. Installing a water softener is a good idea to combat these issues and safeguard your plumbing and appliances. While the tap water meets federal safety standards, the City of Clawson Water Department advises using a certified water filter for added safety, especially for vulnerable groups.