Avon Water Hardness & Quality Report (2026)

Avon City Public Water Supply (PWS) serves the city of Avon in Lorain County, Ohio, employing chlorine disinfection and filtration as primary treatment methods. The system may draw from the Black River or the regional Lake Erie supply via the Lorain County system. Water is treated before distribution to residential and commercial customers; the utility operates from 35030 Detroit Road, Avon, OH 44011, and maintains a 24/7 emergency contact line. Avon City PWS maintains excellent compliance, with zero EPA violations recorded since 2023 and a quality score of 80/100.

Avon's hydrogeological setting is characterized by Devonian carbonate formations of northeast Ohio, including Ohio Shale, Berea Sandstone, and the underlying Columbus Limestone. The Black River drains these carbonate and calcareous shale formations of the Lorain County northeast Ohio platform. This geological character produces very hard water typical of the Lake Erie corridor, as mineral-rich drainage from Devonian carbonates dissolves calcium and magnesium into the regional water supply.

Avon's water is classified as moderately hard, with Total Dissolved Solids measured at 165 parts per million. At this hardness level, residents may notice minor scale buildup in kettles and on fixtures, and soap efficiency may be slightly reduced. Most household appliances and plumbing systems function adequately without treatment, though a water softener may be considered for improved appliance longevity in high-use applications such as dishwashers and washing machines. Lead concerns are addressed through standard EPA guidance — running water until cold before use and using cold water for cooking and drinking.