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Will Your Drinking Water Stay Protected From PFAS in 2025?

What just happened?

Over 100 members of Congress, led by Representative Debbie Dingell of Michigan, sent a letter to the Trump Administration urging it to maintain and enforce the Environmental Protection Agency's new drinking water standards for PFAS chemicals. The letter, sent about three weeks ago, represents a rare bipartisan effort to keep tough regulations in place.

PFAS—known as "forever chemicals" because they don't break down in the environment or your body—were the subject of the EPA's first-ever federal drinking water limits, finalized in 2023. Those limits set safe exposure levels for six common PFAS chemicals found in American tap water.

Why are lawmakers worried?

The timing matters. With a new presidential administration taking office, there's uncertainty about whether existing environmental rules will be enforced, weakened, or rolled back. Dingell and her colleagues are essentially saying: don't touch these water safety standards.

Michigan has particular reason to push for strong PFAS protections. The state has dealt with widespread PFAS contamination in groundwater and drinking water supplies, affecting communities across the state. PFAS chemicals were used in firefighting foam at military bases, airports, and industrial sites—and they've seeped into water supplies nationwide.

Who does this affect?

You, if you drink tap water. According to the EPA, PFAS have been detected in the drinking water supplies of millions of Americans. A 2022 study found PFAS in the blood of about 97% of Americans tested. The chemicals accumulate in your body over time and don't easily leave your system—hence the "forever" label.

The 2023 EPA drinking water standards apply to public water systems serving more than 10,000 people. Smaller systems and private wells have more limited oversight, which is why some communities remain at higher risk.

What health risks are we talking about?

The EPA and other health agencies have associated PFAS exposure with several health concerns, including:

• Increased cholesterol levels
• Liver damage
• Thyroid disease
• Kidney and testicular cancer
• Immune system effects in children
• Pregnancy complications

These are associations found in scientific research, not guaranteed outcomes for every exposed person. But they're serious enough that the EPA set drinking water limits to reduce long-term exposure risk.

What do the current standards require?

The EPA's 2023 limits set maximum contaminant levels (MCLs) for:

• PFOA (perfluorooctanoic acid): 0.004 parts per trillion
• PFOS (perfluorooctane sulfonate): 0.02 parts per trillion
• PFNA, PFHxS, PFBS, and GenX: varying limits

Water systems must test for these chemicals and take corrective action if levels exceed the standards. Implementation was supposed to happen gradually, with compliance required by 2026-2029 depending on the chemical.

Public water systems may need to install or upgrade treatment systems—typically activated carbon filters or ion exchange technology—to remove PFAS before water reaches your tap.

Why would an administration want to weaken these rules?

Compliance costs money. Water utilities estimate billions in infrastructure investments will be needed to meet PFAS standards. Some argue those costs should be weighed against the health benefits. Others worry the standards are too strict or based on uncertain science.

The chemical and manufacturing industries that use or produce PFAS also oppose strict regulations, citing economic impacts.

What happens next?

The congressional letter signals that there's political appetite to defend drinking water standards, but letters alone don't stop regulatory changes. What matters now is whether EPA leadership and the administration prioritize enforcement.

Key risks to watch for:

• Delayed implementation: The administration could push back the 2026-2029 compliance deadlines, extending the period that PFAS remain in tap water.
• Weakened standards: Regulatory changes could raise the allowable limits (making standards less strict), though this would face legal challenges.
• Reduced enforcement: EPA could deprioritize monitoring and penalty actions against water systems that don't comply.

If you're concerned about PFAS in your drinking water, you can use the PFAS Database Finder to check whether your water utility has reported PFAS detections. Many utilities publish annual water quality reports (Consumer Confidence Reports) that include testing results.

What can you do?

Check your water: Ask your local water utility for their latest water quality report or visit your state environmental agency's website.

Use filters: Activated carbon filters (pitcher-type or under-sink) can reduce some PFAS, though effectiveness varies. Look for certified products tested to NSF/ANSI standards.

Stay informed: Monitor PFAS regulatory developments and your local water system's PFAS testing results.

Advocate: Contact your elected representatives if PFAS protection matters to you. The congressional letter shows that constituent pressure influences these decisions.

Consider bottled water as backup: If your tap water is confirmed to have high PFAS levels and you can't install a filter, bottled water is a temporary option—though it's not practical long-term for everyone.

Bottom Line

The drinking water standards for PFAS represent the first federal limit on these persistent chemicals. Over 100 lawmakers are pushing to keep them in place, but the future of enforcement and compliance timelines remains uncertain under the new administration. You have a right to know whether PFAS are in your tap water and to take protective steps. Check your local water quality report and consider filtration if needed.

Frequently Asked Questions

How do I know if PFAS are in my drinking water?

Your water utility must provide annual water quality reports (called Consumer Confidence Reports), which include testing for regulated contaminants. Use the PFAS Finder to look up your water system, or contact your local water department directly. If you have a private well, testing is your responsibility—contact your state environmental agency for approved labs.

Will my water bill go up?

Possibly. Water systems installing PFAS treatment will incur costs, some of which may be passed to customers. However, the amount varies widely by system size and existing infrastructure. Check with your local utility about their PFAS compliance plans.

Are home filters enough?

Activated carbon filters can reduce PFAS in your tap water, but treatment at the water system level is more reliable for everyone in the community. Filters work best as a secondary safety measure, especially in areas with confirmed PFAS contamination. Choose NSF/ANSI certified products for verification of effectiveness.

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