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Water Quality/Treatment

This page provides homeowners, private water systems contractors, and local health departments information about continuous disinfection, water quality, and other water treatment information for wells, cisterns, springs, and ponds.

Continuous Disinfection

Water Quality

  • Water Quality
    • This page provides information and links about microbiological and chemical contamination.

Water Treatment

  • Water Treatment
    • This page provides information to remove or reduce unwanted chemicals and/or microorganisms through water treatment.


Per- and polyfluoroalkyl substances (PFAS) are manmade chemicals that are used in products such as carpeting, upholstery, cookware, food packaging, and firefighting foam. PFAS contamination from manufacturing operations and firefighting activities can migrate through soil, posing potential contamination threats to surface and ground waters. Although the health impacts of exposure to PFAS chemicals are not fully known, some studies have shown that several chemicals within the PFAS family could negatively impact health.

The following factsheets give guidance to owners and operators of private water systems on treating for PFAS:


For information on the health effects of PFAS, visit the ODH Health Assessment Section Chemical Factsheets page. PFAS information is located under the "Per- and Polyfluoroalkyl Substances (PFAS) Packet" menu. 


For information about Ohio's PFAS strategy, current sampling efforts, and more, visit pfas.ohio.gov