Akron Water Hardness & Quality Report (2026)

City of Akron Department of Water Supply operates the Akron Public Water Supply System, serving over 690,000 residents primarily in Summit County, Ohio, and extending to surrounding areas. Water is sourced from surface supplies including the Cuyahoga River and local reservoirs such as Mogadore Reservoir. Treatment occurs at facilities including the Water Treatment Plant on East Market Street, employing conventional processes — coagulation, sedimentation, filtration, and disinfection — to meet state and federal standards.

The Cuyahoga River watershed spans the glaciated Allegheny Plateau, where water contacts Paleozoic carbonate formations including the Devonian-age Onondaga and Columbus limestones alongside Silurian dolomites. These soluble rocks dissolve over time, imparting a moderately mineralized profile rich in calcium and magnesium. Glacial till and karst topography enhance mineral pickup, distinguishing this supply from softer northern Ohio waters influenced by different geology.

Moderate hardness leads to noticeable scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and increasing energy costs. Showers may feel less soapy, and skin or hair can dry out. Regular descaling, vinegar rinses for appliances, and low-flow fixtures help mitigate effects; a water softener is recommended to prevent damage and improve daily use. Akron's water typically maintains a pH of 7.5–8.5; the system complies with EPA lead and copper rules through corrosion inhibitors and pipe replacement programs. Recent testing flags 8 contaminants above health guidelines per advocacy groups, including potential haloacetic acids and trihalomethanes from disinfection. Treatment includes chlorination with ongoing monitoring for emerging contaminants.