Mansfield Water Hardness & Quality Report (2026)

The City of Mansfield Municipal Water Department operates the public water system serving approximately 51,000 residents in Richland County, Ohio. Water sources include surface water from the Clear Fork River and ten groundwater wells in the city's wellfield. Treatment occurs at facilities with a capacity of 25 million gallons per day, with average production of approximately 9.765 million gallons daily, distributing water to the city of Mansfield and surrounding areas. The 2022 Consumer Confidence Report confirms no health-based violations, with water quality meeting EPA standards.

The Clear Fork River watershed spans the till plains of north-central Ohio, draining into the Mohican and Walhonding Rivers within the Muskingum basin. Underlying geology features Pennsylvanian-age sandstones, shales, and limestones of the Allegheny and Pottsville Groups, with contributions from Pleistocene glacial deposits and Mississippian Berea Sandstone and Cuyahoga Group shale for groundwater. This mixed lithology imparts a moderately mineralised character through natural calcium and magnesium dissolution from carbonate strata.

At moderate hardness, scale buildup occurs on fixtures, heaters, and pipes, reducing efficiency in water heaters, dishwashers, and washing machines most severely. Soap lathering diminishes, leading to drier skin and hair. Regular deliming, vinegar rinses, and scale inhibitors help mitigate deposits, and a water softener is recommended for households noticing these effects to extend appliance life and improve cleaning. Bromodichloromethane has been detected above health guidelines in third-party analyses; fluoridation uses silicofluorides, potentially raising lead concerns in older homes. pH and copper/lead compliance hold steady, with no PFAS data reported.