PFAS ("forever chemicals")
PFAS in U.S. tap water
58 public water systems across 15 U.S. states report PFAS in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
See the PFAS Hotspots leaderboard → — every U.S. water system over EPA's finalized PFAS limit, ranked by severity, from the 2023–2025 UCMR5 lab dataset.
Within the federal limit (35)
| Water system | Measured |
|---|---|
| Anchorage, AK 2024 annual report | Not detected ng/L |
| Ann Arbor, MI 2024 annual report | Not detected ng/L |
| Baton Rouge, LA 2024 annual report | Not detected ng/L |
| Carlsbad MWD — Carlsbad, Ca, CA 2023 annual report | Not detected ng/L |
| Casitas Municipal Water Dist — Oak View, Ca, CA 2023 annual report | Not detected |
| Cedar Cove, MD 2024 annual report | Not detected ng/L |
| Charlotte Hall, MD 2024 annual report | Not detected ng/L |
| Coalinga-city — Coalinga, Ca, CA 2023 annual report | Not detected ng/L |
| Covina Irrigating Co. — West Covina, Ca, CA 2023 annual report | Not detected ng/L |
| Covina Irrigating Co. — West Covina, Ca, CA 2020 annual report | Not detected ng/L |
| Covina Irrigating Co. — West Covina, Ca, CA 2021 annual report | Not detected ng/L |
| Dallas, TX 2024 annual report | Not detected ng/L |
| Fairfield, CA 2024 annual report | Not detected |
| Fishers, IN 2024 annual report | Not detected |
| Indianapolis, IN 2023 annual report | Not detected |
| Indianapolis, IN 2023 annual report | Not detected |
| Indianapolis, IN 2024 annual report | Not detected |
| Long Beach, CA 2024 annual report | Not detected ng/L |
| Long Beach Utilities Department — Long Beach, Ca, CA 2023 annual report | Not detected ng/L |
| Lubbock, TX 2024 annual report | Not detected ng/L |
| Morgan County, IN 2024 annual report | Not detected |
| Morgan County, IN 2023 annual report | Not detected |
| Nuevo Water Company — Nuevo, Ca, CA 2022 annual report | Not detected ng/L |
| Phelan Pinon Hills Csd — Phelan, Ca, CA 2023 annual report | 0 ng/L |
| Salem, OR 2023 annual report | Not detected |
| San Joaquin County - Lincoln Village — Stockton, Ca, CA 2023 annual report | Not detected ng/L |
| Soledad, City of — Soledad, Ca, CA 2023 annual report | Not detected ng/L |
| Vallejo, CA 2024 annual report | 0 |
| Ventura Cwwd No. 1 - Moorpark — Moorpark, Ca, CA 2023 annual report | Not detected |
| Ventura River Water District — Ojai, Ca, CA 2023 annual report | Not detected |
| Vista Irrigation District — Vista, Ca, CA 2023 annual report | Not detected ng/L |
| West Valley City, UT 2024 annual report | Not detected ng/L |
| Westfield, IN 2024 annual report | Not detected |
| Westfield, IN 2023 annual report | Not detected |
| Yuma, AZ 2025 annual report | Not detected ng/L |
Frequently asked
+What is PFAS?
PFAS is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+What is the federal limit for PFAS in drinking water?
The federal NL for PFAS is 500 ng/L. The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.
+How many U.S. water systems have PFAS over the federal limit?
Zero of the 58 public water systems in The Water Map dataset currently report PFAS at or above its federal limit.
+How can I check if PFAS is in my city's tap water?
Search your city on The Water Map (https://www.thewatermap.com/) or browse the list on this page. Every U.S. public water utility is required to publish an annual Consumer Confidence Report that lists every contaminant it measured, including PFAS.