Lifetime health advisories (LHAs) level:
Interim updated Health Advisory for PFOA = 0.004 parts per trillion (ppt)
Interim updated Health Advisory for PFOS = 0.02 ppt
Final Health Advisory for GenX chemicals = 10 ppt
Final Health Advisory for PFBS = 2,000 ppt
Citation formats
Drinking water systems with PFAS detections above new EPA levels in 2022, by compound
More than ** million people in the United States, in over communities, are drinking water with per- and polyfluoroalkyl substances (PFAS) levels above the new EPA lifetime health advisories (LHAs). There were drinking water systems where PFOA was detected in levels above the new LHAs of parts per trillion (ppt).
PFAS are a class of thousands of chemicals that have been used in consumer products since the . They are often used to make water, stain, and heat resistant products. PFAS are known as forever chemicals because they do not break down naturally and are linked to a number of health problems, such as cancer, liver problems, and kidney disease.
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EWG. (June 1, 2022). Drinking water systems with PFAS detections above the new EPA health advisories in the United States as of June 2022, by compound [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 27, 2026, from /statistics/1345445/pfas-detections-in-drinking-water-systems-by-compound-united-states/
EWG. "Drinking water systems with PFAS detections above the new EPA health advisories in the United States as of June 2022, by compound." Chart. June 1, 2022. ÌÇÐÄÆƽâ°æ. Accessed July 27, 2026. /statistics/1345445/pfas-detections-in-drinking-water-systems-by-compound-united-states/
EWG. (2022). Drinking water systems with PFAS detections above the new EPA health advisories in the United States as of June 2022, by compound. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 27, 2026. /statistics/1345445/pfas-detections-in-drinking-water-systems-by-compound-united-states/
EWG. "Drinking Water Systems with Pfas Detections above The New Epa Health Advisories in The United States as of June 2022, by Compound." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 Jun 2022, /statistics/1345445/pfas-detections-in-drinking-water-systems-by-compound-united-states/
EWG, Drinking water systems with PFAS detections above the new EPA health advisories in the United States as of June 2022, by compound ÌÇÐÄÆƽâ°æ, /statistics/1345445/pfas-detections-in-drinking-water-systems-by-compound-united-states/ (last visited July 27, 2026)
Drinking water systems with PFAS detections above the new EPA health advisories in the United States as of June 2022, by compound [Graph], EWG, June 1, 2022. [Online]. Available: /statistics/1345445/pfas-detections-in-drinking-water-systems-by-compound-united-states/
