What are the health advisory levels for PFAS compounds?

On June 15, 2022, the Environmental Protection Agency (EPA) announced interim and final health advisory levels for four per- and polyfluoroalkyl substances (PFAS) found in public drinking water systems and wells across country and the state. These are the only health advisory levels established by the EPA at this time for PFAS compounds:

  • Interim updated Health Advisory for PFOA = 0.004 parts per trillion (ppt) with a minimum reporting level of 4 ppt
  • Interim updated Health Advisory for PFOS = 0.02 ppt with a minimum reporting level of 4 ppt
  • Final Health Advisory for GenX chemicals (HFPO-DA) = 10 ppt
  • Final Health Advisory for PFBS = 2,000 ppt

Health advisories are non-enforceable and non-regulatory levels that provide information on contaminants that can cause human health effects and are known or anticipated to occur in drinking water.

While unenforceable, these advisories indicate the level of drinking water contamination below which adverse health effects are not expected to occur. Health advisories provide technical information that federal, state, and local officials can use to inform the development of monitoring plans, investments in treatment solutions, and future policies to protect the public from PFAS exposure.

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1. What is PFAS?
2. What are the health advisory levels for PFAS compounds?
3. What is the difference between an interim and final health advisory level?
4. Will EPA release an enforceable regulation for GenX in drinking water?
5. How do I know if my drinking water contains PFAS?
6. PFAS (PFOA, PFOS, GenX, PFBS) has been detected in my water. Is it safe to drink?
7. PFAS (PFOA, PFOS, GenX, PFBS) has been detected in my water supply. Can I shower, bathe, wash clothes/dishes, water my plants, etc.?
8. Can I use my water to mix my babies’ formula?
9. PFAS (PFOA, PFOS, GenX, PFBS) has been detected in my water supply. Is it safe for pets or animals?
10. What health effects should I be worried about?
11. How can I be exposed to PFAS?
12. What can I do to reduce my exposures to PFAS?
13. Is there one location where PFAS studies are summarized?