Drinking Water

  • Per- and polyfluoroalkyl substances (PFAS) are a large group of man-made chemicals that include perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). PFAS have been used globally during the past century in manufacturing, firefighting and thousands of common household and other consumer products such as but not limited to:

    • water and stain repellent products,
    • non-stick pots and pans
    • personal care products (e.g. cosmetics, lotions),
    • insect repellants and sunscreens,
    • food packaging wrappers

    PFAS chemicals are persistent in the environment and in the human body - meaning they don't break down and they can accumulate over time. In recent years, experts have become increasingly concerned by the potential effects of high concentrations of PFAS on human health.  PFAS move easily through the ground and may get into groundwater that is used for some water supplies or for private drinking water wells. When spilled into lakes or rivers used as sources of drinking water, they can get into drinking water supplies.

Where does my water come from?

  • Approximately 75% of Michigan residents get water from a public water supply and approximately 25% are on private wells. 

    • If you receive a water bill, your water comes from a public water supply. 
    • If you do not pay for your water, you are likely on a private well. 

Frequently Asked Questions on Drinking Water

  • Why are my test results different than my neighbors?

    What is PFAS and why are some communities affected more than others by it?

    To answer these questions and more, watch this video for an animation of how PFAS gets into our environment.