PFAS Water Contamination Lawsuit: Settlements, EPA Limits, and Who Can Sue

PFAS (per- and polyfluoroalkyl substances) are a family of thousands of synthetic chemicals used in nonstick coatings, stain repellents, and AFFF firefighting foam. They are called forever chemicals because they barely break down, so they build up in groundwater and in people.

Water lawsuits generally fall into four groups:

• Water utilities suing manufacturers for the cost of testing and treatment.
• States and local governments suing for natural resource damage and cleanup.
• Property owners whose wells were contaminated, seeking cleanup costs, new water hookups, and lost property value, often as a class action.
• Individuals with illnesses seeking compensation for cancer or other diseases, usually as individual personal injury claims.

The core allegation is that manufacturers knew for decades that PFAS were toxic and persistent and did not warn the public, while the chemicals leached from plants, landfills, and sites where foam was sprayed. Companies deny liability, and they dispute that PFAS at typical exposure levels caused any individual's disease. The WHO's cancer agency classified PFOA as carcinogenic to humans in December 2023, citing limited human evidence for kidney and testicular cancer.

On April 10, 2024, EPA finalized the first national drinking water standards for six PFAS. It set enforceable maximum contaminant levels of 4.0 parts per trillion for PFOA and for PFOS, 10 parts per trillion each for PFHxS, PFNA, and HFPO-DA (GenX chemicals), and a hazard index for mixtures. Water systems had until 2027 to finish initial monitoring and until 2029 to fix exceedances. EPA estimated the rule would eventually protect about 100 million people from PFAS exposure.

That framework is shifting. On May 18, 2026, EPA proposed keeping the 4.0 part per trillion limits for PFOA and PFOS while letting water systems request two more years, to 2031, to comply. In a separate proposal, EPA would rescind the standards for PFHxS, PFNA, GenX, and the hazard index mixture. The comment period on both closed on July 20, 2026, and neither was final as of September 2026.

Why this matters for lawsuits: federal limits are not themselves a right to sue, but a test result above 4.0 parts per trillion is strong evidence that water is contaminated at a level regulators consider unsafe, which supports property and injury claims. Your utility must begin telling customers its PFAS levels starting in 2027 under the 2024 rule.

Utility settlements in MDL 2873

In the federal AFFF litigation, 3M agreed to pay public water systems up to $10.3 billion in present value over 13 years (final approval announced April 1, 2024); DuPont, Chemours, and Corteva agreed to $1.185 billion; Tyco agreed to $750 million; and BASF agreed to $316.5 million (both approved in November 2024). These pay water systems for treatment. Households benefit only indirectly.

New Jersey

In August 2026, state officials announced that a federal court had approved two settlements valued at about $2.5 billion over PFAS and other pollution in New Jersey. The DuPont entities' settlement is valued at more than $2 billion, which state officials called the largest environmental settlement achieved by a single state.

North Carolina

In September 2026, North Carolina's attorney general announced a $590 million deal between the state, 11 local governments, and DuPont and Chemours over contamination from the Fayetteville Works plant, including $455 million paid over 10 to 15 years and a $135 million reserve fund. Under a 2019 consent order, Chemours has sampled about 27,500 household wells and provided filtration or other water to about 10,500 families with polluted wells, according to the attorney general.

Michigan residents

Individual households have recovered in some local cases. In 2022, a federal judge in the Western District of Michigan preliminarily approved a $54 million settlement by Wolverine World Wide and 3M for property owners in northern Kent County whose area was contaminated by PFAS from the footwear company's waste. Wolverine separately agreed to pay more than $69 million to connect homes with contaminated wells to municipal water.

Your options depend on what harm you can show.

Personal injury

If you have a diagnosed illness linked to PFAS in current litigation, most often kidney cancer, testicular cancer, thyroid disease, or ulcerative colitis, and you drank contaminated water for years, you may have an individual claim. Many water-exposure injury cases are part of MDL 2873 when the source was firefighting foam. Proving that your water, not something else, caused your illness is the hard part.

Property and cleanup

If your well was contaminated, you may be able to recover the cost of filtration, bottled water, a new well or municipal hookup, and in some states loss of property value. These are often brought as class actions for neighborhoods near one source.

Medical monitoring

Some states let exposed people seek the cost of future medical testing even before they get sick. In Benoit v. Saint-Gobain (2020), the Second Circuit held that residents of Hoosick Falls, New York had pleaded a valid medical monitoring claim under New York law over PFOA from a nearby plant. Other states do not allow these claims without a present injury.

Who probably cannot sue: people on water systems that never exceeded limits, people with no documented exposure source, and people seeking a share of the utility settlements.

Where your water comes from shapes both your protection and your legal options.

Public water customers

The EPA limits apply to public water systems, not private wells. Under the 2024 rule, public water systems must finish initial PFAS monitoring by 2027 and, starting that year, tell customers the PFAS levels in their water. If your system exceeds the limits, it has to fix the problem, and the utility settlements in MDL 2873 are helping pay for treatment. Your individual claim, if any, would be for a PFAS-linked illness from years of drinking the water before it was treated.

Private well owners

No federal rule requires anyone to test your well, so many owners never learn their water is contaminated unless a state agency or company offers testing near a known source. That is what happened around Fayetteville Works in North Carolina, where the attorney general says about 27,500 household wells have been sampled and about 10,500 families with polluted wells have received filtration or other water. Well owners have the most direct property claims, because contamination can lower a home's value and force costly fixes like a new well or a municipal connection.

Renters

Renters generally do not have property damage claims but can still have personal injury claims based on how long they drank the water, so keep leases and utility bills that prove where you lived.

In every case, the link to a specific source matters. Contamination near a chemical plant, air base, or airport that used AFFF is far easier to trace than low levels of unknown origin. If your state has a PFAS map or testing program, it can help show that link.

Values vary widely. Property settlements for a neighborhood tend to be modest per household once divided, and are often paired with a free hookup to clean water. Personal injury claims can be larger, but there is no personal injury settlement in the AFFF MDL yet, so there is no published grid.

What drives value:

• How high the PFAS levels were and for how long.
• How clearly the contamination traces to a defendant.
• The diagnosis and its severity.
• State law on property damage and medical monitoring.

Public programs can matter as much as lawsuits. In North Carolina, the state's consent order requires Chemours to provide clean water to affected well owners regardless of any lawsuit. Check with your state environmental agency before paying for filtration yourself. Also note that court orders requiring cleanup, a form of injunctive relief, can deliver more value than cash to a neighborhood.

PFAS water cases use several legal theories: negligence, strict product liability against the chemical makers, nuisance and trespass for contamination of property, failure to warn, and, where allowed, medical monitoring. Governments also use environmental statutes. Manufacturers that made foam for the military often raise the government contractor defense.

Filing deadlines depend on state law, and in California, for example, a personal injury claim generally must be filed within two years under Code of Civil Procedure section 335.1. Many states start the clock from when you knew or should have known about the contamination and its connection to your harm, which is why the date you got a PFAS notice or test result can matter. Property claims may have different deadlines. For more on the difference between group and individual claims, see class action vs. mass tort.

1. Find your water data. Public water customers can check their utility's annual water quality report and PFAS notices. Private well owners should use a state certified lab.
2. Reduce exposure if levels are high. Filters certified to reduce PFAS, such as some reverse osmosis systems, are an option; ask your state agency whether free filtration is offered.
3. Keep receipts for testing, filters, bottled water, and plumbing work.
4. Record your history of every address where you lived and for how long, and get medical records for any diagnosis.
5. Watch your mail. Notices from your utility, state agency, or a court about a local PFAS settlement can carry short deadlines to file or opt out.
6. Talk to an attorney about whether an individual injury, property, or class claim fits your situation. Bring your test results, address history, and medical records to the conversation so the review is quick and specific.

A free case review takes about two minutes. You can also read about PFAS in consumer products or browse other lawsuits you may be able to join.