Inorganic chemicals
Asbestos in U.S. tap water
20 public water systems across 6 U.S. states report Asbestos in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
Within the federal limit (20)
| Water system | Measured |
|---|---|
| Mobile, AL 2024 annual report | 5 MFL |
| Allentown, PA 2024 annual report | 0.17 MFL |
| Antioch, CA 2024 annual report | Not detected MFL |
| City of Antioch, CA 2024 annual report | Not detected MFL |
| City of Brentwood, CA 2024 annual report | Not detected MFL |
| City of Brentwood, CA 2024 annual report | Not detected MFL |
| City of Martinez, CA 2024 annual report | Not detected MFL |
| City of Martinez, CA 2024 annual report | Not detected MFL |
| City of Pittsburg, CA 2024 annual report | Not detected MFL |
| City of Pittsburg, CA 2024 annual report | Not detected MFL |
| Concord, CA 2024 annual report | Not detected MFL |
| Diablo Water District, CA 2024 annual report | Not detected MFL |
| Diablo Water District, CA 2024 annual report | Not detected MFL |
| Golden State Water Company, CA 2024 annual report | Not detected MFL |
| Golden State Water Company, CA 2024 annual report | Not detected MFL |
| High Point, NC 2024 annual report | Not detected MFL |
| Nashville, TN 2023 annual report | Not detected |
| Pomona, CA 2024 annual report | Not detected MFL |
| West Jordan, UT 2024 annual report | Not detected MFL |
| West Valley City, UT 2024 annual report | Not detected MFL |
Frequently asked
+What is Asbestos?
Asbestos is a contaminant some U.S. public water utilities measure and report in their annual Consumer Confidence Report.
+What is the federal limit for Asbestos in drinking water?
The federal MCL for Asbestos is 7 MFL. 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 Asbestos over the federal limit?
Zero of the 20 public water systems in The Water Map dataset currently report Asbestos at or above its federal limit.
+How can I check if Asbestos 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 Asbestos.