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  • PFAS Information

    Per- and polyfluoroalkyl substances, also called PFAS, are a family of man-made chemicals widely used in many consumer products since the 1940s. 
    Sant Cruz In recent years, Tucson has taken steps to prevent PFAS from entering the potable water system by shutting off groundwater wells and redirecting water discharges from the Tucson Airport Remediation Project (TARP). 

    Both Pima County and the City of Tucson continue to monitor for the presence of PFAS substances and are committed to the protection of public health.
    Additional information about PFAS and their risks can be found below.




    Local Water Providers

    Tucson Water: Per- and Polyfluoroalkyl Substances (PFAS)
    Marana Water: Unregulated Compounds

    Regulatory Resources

    Arizona Department of Environmental Quality: Protecting Tucson’s Drinking Water Supplies
    EPA: Drinking Water Health Advisories for PFOA and PFOS
    EPA: PFOA y PFOS - Preguntas y Respuestas

    Academic Resources

    University of Arizona: UArizona Health Sciences Researchers Study Health Risk of a Group of Chemicals in Firefighter Foam and Protective Gear

    Analytical Resources

    Water Testing for PFAS
    Blood Testing for PFAS

    Additional Information

    Frequently Asked Questions
    Preguntas Frecuentes Sobre PFAS
    PFAS in Biosolids: A Southern Arizona Case History (RWRD report published Oct. 2020)
    "The Forever Chemicals": Per- and Polyfluoroalkyl Substances (PFAS)
    "The Forever Chemicals": Per- and Polyfluoroalkyl Substances (PFAS) (one-page version)
    Clinical Guidance: Exposure to Per- and Polyfluoroalkyl Substances (PFAS)
    Environmental Toxic Substance Assessment 2022 Update
    Water Filter Guide: Reducing Exposure to Per- and Polyfluoroalkyl Substances (PFAS)
    Frequently Asked Questions About PFAS
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