AFFF and PFAS litigation · Evidence guide

The PFAS MDL includes different injuries, properties and public-water claims

MDL 2873 coordinates thousands of federal actions, but its allegations and remedies are not all the same. A current court order is moving a group of personal-injury cases toward expert discovery.

WeSpeakLaw EditorialUpdated August 24, 2026

Federal docketDifferent claim groupsOne MDL is not one claim
Court ordersDiscovery is movingProcedure is not a merits ruling
EvidenceExposure and injury remain case-specificNo universal causation finding

What the court says plaintiffs allege

The District of South Carolina describes lawsuits alleging that aqueous film-forming foam containing PFOA or PFOS contaminated groundwater near military bases, airports and other industrial sites. Plaintiffs allege personal injury, a need for medical monitoring, property damage or other economic loss.

Those categories matter because an individual injury claim is not the same as a public-water or property claim. They can involve different evidence, defenses and possible remedies even when they share pretrial work in one MDL.

Federal AFFF/PFAS actions are centralized in MDL 2873 before Judge Richard M. Gergel. JPML reported 15,246 pending actions and 19,822 historical actions as of August 3, 2026.

What EPA says about PFAS and health

PFAS are not one chemical. EPA describes a group of thousands of manufactured chemicals, some much more studied than others. Possible exposure settings include contaminated drinking water, certain workplaces, food, soil, dust, air and products made with PFAS.

EPA says current research suggests that exposure to certain PFAS may lead to adverse health outcomes. It also says research is continuing on how different chemicals, exposure levels and exposure durations relate to different effects.

That overview does not prove exposure or causation in a lawsuit. A case still requires evidence about the chemical or product, the route and timing of exposure, the claimed condition and other possible explanations.

Where the personal-injury bellwether work stands

A July 30, 2026 order addresses a Group B pool of personal-injury bellwether cases. The order identifies selected plaintiffs alleging thyroid disease or ulcerative colitis and sets November 20, 2026 deadlines for the parties' proposals about case selection and expert discovery.

This is a scheduling step. It does not decide that PFAS caused any condition, that a defendant is liable, or that another plaintiff's case will follow the same path.

Defenses and outcomes require the case-specific record

This MDL involves multiple defendants and varied claims. The court pages and scheduling order cited here do not provide one complete defense position that can fairly be attributed to every defendant, so this page does not invent one.

To evaluate a particular action, read its complaint, the responding defendant's answer or motion, and the orders that actually resolve an issue. The existence of the MDL and its bellwether schedule are procedural facts, not merits outcomes.

Verification ledger

Primary sources

U.S. District Court for the District of South Carolina

Case Management Order No. 26O

The current Group B personal-injury bellwether scheduling order.

ECF 10497 · Filed July 30, 2026 · PDF pages 1-2

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