Pine Hill’s drinking water begins in the Alabama River. The town takes raw water from the river, treats it, and distributes it to homes and businesses. According to the appellate opinion, PFAS in that water are difficult to remove with the filtration system Pine Hill currently has.

The opinion describes a direct industrial route into the watershed: 3M produced PFAS-containing products sold to International Paper, and workers at the company’s Alabama paper mills discharged PFAS-containing wastewater into the river and its tributaries. Pine Hill sued 3M and other defendants in Alabama state court, alleging negligence, wantonness, private and public nuisance, and trespass.

The practical consequence identified in the record is an infrastructure requirement. Pine Hill must install a new filtration system and monitor PFAS levels to remove the substances properly, the opinion states. It doesn’t provide the system’s cost, PFAS concentration measurements, a construction schedule, or evidence of illness among customers.

Pine Hill’s case centers on PFAS products supplied to paper mills, not firefighting foam. Its theory is that the products entered mill wastewater, the wastewater entered the Alabama River system, and contamination reached the source from which the town draws drinking water.

The distinction between supplying the products and releasing the wastewater matters. The opinion says 3M made the PFAS-containing products, while paper-mill workers discharged the wastewater. Pine Hill’s claims seek to hold 3M responsible under state law for its role in that chain. Whether the evidence ultimately establishes the elements of those claims hasn’t been decided.

For the town and its customers, the documented consequence is a treatment problem at the public water system. The river remains Pine Hill’s source, but the existing filtration system is not sufficient to remove PFAS properly, according to the opinion. The town therefore faces the task of adding filtration and ongoing monitoring.

The source does not say who has paid or will pay for that work. It also doesn’t quantify any cost passed to residents or businesses. Claims about medical harm, service interruptions, or household financial losses would go beyond the supplied record.

Aqueous film-forming foam, or AFFF, is firefighting foam developed for military use. The military required chemical manufacturers, including 3M, to make it under detailed specifications because the government could not produce enough for its own needs. 3M said it supplied military AFFF for more than three decades, including for use in Alabama.

Maxwell Air Force Base is near the Alabama River. In its removal notice, 3M cited a government report identifying PFAS in groundwater associated with multiple AFFF release areas at the base. The report said groundwater flowed toward the river. 3M argued that PFAS from Maxwell could have mixed with PFAS from paper mills before the water reached Pine Hill.

There are gaps in that chain. The majority acknowledged that 3M did not directly state it supplied AFFF to Maxwell. Pine Hill also argued there was no evidence that AFFF from the base entered the river. The court nevertheless found a plausible connection based on 3M’s long-running military sales, the contamination documented at Maxwell, and the direction of groundwater flow.

Judge Kevin Newsom, concurring in the result, cited an additional study indicating that PFAS levels in the river increased closer to Maxwell. His point remained procedural: 3M needed a plausible showing at this stage, not proof that would resolve causation at trial.

Pine Hill’s complaint expressly said it was not alleging drinking-water contamination through AFFF and was not seeking compensation for AFFF-related contamination or injury. The town argued that this disclaimer removed any connection between its lawsuit and 3M’s work for the federal government.

3M responded that the disclaimer couldn’t make source attribution disappear. If paper-mill PFAS and military AFFF had commingled, a court would still need to decide what caused Pine Hill’s loss and how much could be attributed to each source.

The majority adopted reasoning from another federal appeals court: a disclaimer can prevent removal only when it fully eliminates the need for a state court to evaluate conduct performed under federal authority. Because 3M plans to argue that Maxwell contributed to the contamination, the majority concluded Pine Hill’s disclaimer did not accomplish that.

Newsom agreed with the outcome but not the need to label the disclaimer artful pleading. In his view, even if the suit is framed exclusively around paper-mill sales, determining the mills’ share of the damage necessarily requires examining whether AFFF caused another share.

3M removed the lawsuit from Alabama state court under the federal officer removal statute. That law lets some federal contractors defend a case in federal court when the claims relate to work performed under federal authority and the contractor has a plausible federal defense.

The district court sent the case back to state court, reasoning that its core concerned PFAS products supplied to paper mills rather than military work. The Eleventh Circuit vacated that order. It held that 3M plausibly satisfied all three requirements for a federal forum.

For that defense, 3M alleged that the Navy created precise requirements governing AFFF’s formulation, performance, testing, storage, inspection, packaging, and labeling. It also said its products appeared on the Department of Defense Qualified Products List, indicating that the government had determined they conformed to military requirements.

The third requirement concerns warnings: a supplier must tell the government about dangers known to the supplier but not the government. 3M alleged that federal officials already knew AFFF contained PFAS, that its constituents could migrate through soil into groundwater, and that environmental or health issues had been reported. The appellate court held those allegations were sufficient to make the defense plausible.

The decision did not find that 3M supplied AFFF to Maxwell. It did not find that PFAS from Maxwell reached the Alabama River, determine how much contamination came from paper mills, or assign any share of Pine Hill’s treatment problem to a particular source.

It also did not validate 3M’s government-contractor defense on the merits. The opinion noted that a court overseeing consolidated AFFF litigation had previously identified factual disputes over whether 3M used the approved military specification. That court did not rule that 3M could never establish the defense, and the Eleventh Circuit declined to resolve the factual dispute during this jurisdictional appeal.

No defendant was found negligent, wanton, liable for nuisance, or responsible for trespass. Pine Hill has not yet won compensation or an order requiring anyone to fund filtration. The appellate ruling determines the forum in which those questions will be litigated.

The legal consequence reaches beyond a change of courthouse. Where contamination from private industry may have mixed with contamination from government-directed work, a plaintiff cannot necessarily keep a case in state court simply by disclaiming damages tied to the federal source. A contractor may obtain a federal forum by plausibly showing that the sources overlap and that federal work could affect causation or liability.

That rule does not erase the alleged paper-mill route or reduce Pine Hill’s filtration needs. It gives 3M the opportunity to litigate its military-source theory and federal defense in federal court before either theory has been proven.

• Whether 3M supplied the AFFF released at Maxwell Air Force Base.
• Whether PFAS from Maxwell reached the Alabama River and contributed to Pine Hill’s water contamination.
• How much contamination, if any, came from paper mills, military sources, or other sources.
• Whether Pine Hill can prove its state-law claims against 3M or the other defendants.
• Whether 3M can establish every element of the government-contractor defense after factual development.
• What Pine Hill’s required filtration and monitoring will cost, and who will ultimately bear that cost.