In Your Blood. In Your Water. In Your Children. 3M and DuPont Knew in 1961. They Decided Your Life Wasn’t Worth the Cost of Stopping.
PFAS — per- and polyfluoroalkyl substances — are a family of over 14,000 synthetic chemicals built on the carbon-fluorine bond. That bond is the strongest in organic chemistry. It doesn’t break down in soil. It doesn’t break down in water. It doesn’t break down in your body. That’s why they’re called forever chemicals. There is no natural process that eliminates them. They simply accumulate.
They’ve been manufactured since the 1940s and are found in Teflon pans, Scotchgard fabric protection, Gore-Tex, fast-food wrappers, dental floss, firefighting foam, waterproof mascara, stain-resistant carpet, ski wax, semiconductors, and medical devices. The question isn’t whether you’ve been exposed. The question is how much.
The two most notorious are PFOA (used in Teflon, made at DuPont’s Washington Works plant in Parkersburg, WV) and PFOS (used in 3M’s Scotchgard and military firefighting foam). PFOA was classified a Group 1 human carcinogen by IARC in November 2023. The science is settled: it causes cancer in humans. When manufacturers were pressured to phase these out, they introduced GenX (HFPO-DA) — a newer PFAS that researchers have called a “regrettable substitute.” Different compound. Same permanent problem.
This isn’t a case of science catching up slowly. This is a case of corporations with full knowledge of the harm making a deliberate calculation that your life wasn’t worth the cost of stopping. The paper trail is airtight — obtained through decades of litigation by attorney Robert Bilott and confirmed by EPA enforcement records, congressional testimony, and internal memos entered into evidence.
Internal DuPont memo — 1984: After confirming PFOA was elevated in local drinking water near Washington Works, DuPont’s internal team concluded that reducing emissions was “not economically attractive.” The company said nothing to regulators or the community. Dumping continued for nearly 20 more years.
DuPont begins using PFOA at Washington Works in Parkersburg, WV. Over the next 52 years, ~1.7 million pounds of PFOA will be emitted into the air and water of the Mid-Ohio Valley.
DuPont’s own in-house animal studies document liver enlargement in rats exposed to PFOA. Findings are classified confidential. No action taken.
3M scientists document PFOS bioaccumulates in human tissue. Internal studies flag PFAS as “highly toxic.” Research stays internal. 3M continues supplying the U.S. Navy’s AFFF firefighting foam throughout this period.
Two pregnant DuPont employees working with PFOA give birth to children with birth defects. Bucky Bailey, born 1981, has facial defects linked to his mother Sue’s in-utero PFOA exposure. DuPont marks the findings confidential and makes no public disclosure.
DuPont confirms PFOA in local drinking water near Washington Works. An internal memo concludes reducing emissions is “not economically attractive.” DuPont privately sets a 1 ppb internal safety limit — never disclosed to regulators or residents.
DuPont dumps 7,100+ tons of PFOA-contaminated sludge into unlined ponds adjacent to Wilbur Tennant’s cattle farm. Within years, 153 cattle are dead — tumors, blackened teeth, blue eyes. DuPont denies responsibility.
West Virginia attorney Robert Bilott takes Wilbur Tennant’s case. He subpoenas DuPont’s files and begins uncovering decades of concealment. The legal battle runs 20+ years.
3M voluntarily phases out PFOS and PFOA after EPA requests data. DuPont becomes sole U.S. PFOA producer and ramps output to fill the gap.
EPA sues DuPont for failing to report health risk data under TSCA §8(e). DuPont settles for $16.5 million — the largest TSCA civil penalty at the time. No criminal charges. No admission of wrongdoing.
West Virginia court approves a ~$343 million class settlement for ~69,000 Mid-Ohio Valley residents and funds the C8 Science Panel to study PFOA’s health effects.
C8 Science Panel releases conclusions after studying 69,030 people: PFOA has a “probable link” to six diseases — kidney cancer, testicular cancer, ulcerative colitis, thyroid disease, preeclampsia, and high cholesterol.
Within 20 days: DuPont/Chemours/Corteva settle for $1.185 billion (June 2) and 3M settles for $10.3B present value (June 22) — the largest drinking-water pollution settlement in U.S. history.
Trump EPA under Lee Zeldin announces it will rescind MCLs for PFHxS, PFNA, GenX, and the Hazard Index, leaving four PFAS with no federal drinking water limit. PFOA/PFOS compliance deadline extended from 2029 to 2031.
CDC NHANES data spanning 1999 to 2020 found 97%+ of Americans have detectable PFAS in their blood across every single testing cycle. PFOA detection rates: 98.94%–99.99%. PFOS: 98.97%–100%. These chemicals cross the placenta. Children born after 3M’s early-2000s phaseout still showed contamination in over 96% of cases. PFAS pass through breast milk. There is no PFAS-free generation.
The half-life of PFOA in the human body is 2–8 years. PFOS: 3–7 years. They accumulate faster than they leave. The good news: PFOS blood levels dropped ~85% from 1999 to 2020 and PFOA dropped ~70% following phaseouts. The bad news: new short-chain replacements including GenX are already entering monitoring panels with far less understood long-term effects.
The C8 Science Panel didn’t speculate. They studied 69,030 people across years and reached formal “probable link” conclusions on six diseases tied directly to PFOA exposure. These findings drove the personal-injury settlements that paid out $670.7 million to 3,550 victims. The science was never disputed — only the corporate response to it.
A 2012 study of 587 Faroese children found that doubling PFOS levels at birth produced a ~40% drop in diphtheria vaccine antibody concentration by age 5. Forever chemicals don’t just cause cancer. They weaken your children’s immune response to diseases we thought we had controlled decades ago.
These are not nameless forces. They are companies with CEOs, legal teams, PR departments — and internal memos that explicitly confirm knowledge of harm. Here are the key players with the documented receipts.
Produced ~70% of historical U.S. PFOA and PFOS. Developed AFFF firefighting foam for the U.S. Navy in the 1960s. Internal scientists flagged PFOS as “highly toxic” and bioaccumulative in the 1970s. Continued production for decades. Settled for $10.3B present value ($12.5B nominal over 13 years) in June 2023 — the largest drinking-water pollution settlement in U.S. history.
Used PFOA at Washington Works since 1951. Knew it was in local drinking water by 1984 and called reducing emissions “not economically attractive.” Spun off PFAS liabilities to Chemours in 2015 — a move regulators and plaintiffs challenged as fraudulent transfer. Settled for $1.185B on June 2, 2023.
Contaminated the entire village of Hoosick Falls (pop. ~3,500) with PFOA above the 70 ppt advisory level. Settled for $65.25M alongside Honeywell and 3M. A new clean water supply for the community only opened April 1, 2025 — years after the contamination was disclosed.
On May 14, 2025, announced plans to rescind MCLs for PFHxS, PFNA, GenX, and the Hazard Index — leaving four PFAS with no federal drinking water limit. Extended PFOA/PFOS compliance from 2029 to 2031. Withdrew the PFAS wastewater rule in January 2025. 33+ state AGs pushed back.
The EPA’s UCMR 5 testing program — the most comprehensive PFAS water testing ever conducted — required testing at all public water systems serving more than 3,300 people. Results through August 2025: more than 172 million Americans are served by systems with PFAS detections. The EPA’s April 2024 rule set the Maximum Contaminant Level for PFOA and PFOS at 4 parts per trillion — near the detection limit of most instruments. Even one part per trillion has documented health implications.
DuPont Washington Works. ~70,000 residents exposed for 50+ years. 69,030 enrolled in medical monitoring. Birthplace of the entire PFAS accountability movement.
Village of ~3,500 people. PFOA far above the 70 ppt advisory. Clean water supply only opened April 1, 2025 — years after discovery. Settlement: $65.25M.
Chemours dumped GenX for ~40 years. ~250,000 CFPUA customers affected. One private well hit >4,000 ppt GenX. ~70% of 400+ tested private wells showed contamination in 2017.
Near former Wurtsmith AFB, closed 1993. AFFF foam still surfaces on Van Etten Lake decades later. Fish and deer consumption advisories in effect. DoD liability unresolved.
Oakdale, Lake Elmo, Cottage Grove, Woodbury. ~67,000 residents. 3M’s Cottage Grove plant contaminated groundwater for decades. $850M 3M Minnesota settlement, 2018.
Haven Well shut May 2014. Pioneering blood-testing study of exposed families. One of the first military bases to confirm high PFAS in community drinking water via AFFF. 10,000+ residents affected.
3M developed aqueous film-forming foam (AFFF) for the U.S. Navy in the 1960s. For more than 50 years, the Department of Defense required PFAS-based foam by military specification for every flight line, aircraft carrier deck, and fuel depot in the country. Every training burn left PFAS in the soil and groundwater. Over 700 DoD sites in all 50 states are known or suspected to be PFAS-contaminated.
The NDAA for FY2020 required DoD to stop buying PFAS-based foam by October 1, 2023, and cease use entirely by October 1, 2024. Outside analysts estimate $30 billion to $100+ billion for full DoD PFAS remediation. That cost falls on taxpayers — not on 3M or the other manufacturers who built the product knowing the risks.
In June 2023, two landmark settlements were announced within 20 days of each other — the largest PFAS accountability moment in U.S. history. They still fall short of the true cleanup cost by tens of billions of dollars. The AWWA estimates $37 billion upfront just to bring contaminated water systems into compliance. The remaining gap is paid by municipalities, ratepayers, and taxpayers. The corporations filed their checks and moved on.
| Settlement | Amount | Date | Defendants |
|---|---|---|---|
| 3M Public Water Suppliers | $10.3B PV / $12.5B nominal over 13 years | June 22, 2023; final approval March 29, 2024 | 3M |
| DuPont / Chemours / Corteva Water Class | $1.185B (Chemours $592M / DuPont $400M / Corteva $193M) | June 2, 2023 | DuPont, Chemours, Corteva |
| Minnesota v. 3M — NRD / Scotchgard | $850M (~$720M net) | Feb 20, 2018 | 3M |
| Ohio MDL — 3,550 Personal Injury Cases | $670.7M | 2017 | DuPont / Chemours |
| New Jersey v. 3M | Up to $450M over 25 years | May 2025 | 3M |
| Hoosick Falls Class Action | $65.25M proposed | July 22, 2021 | Saint-Gobain, Honeywell, 3M |
| EPA v. DuPont (TSCA §8(e)) | $16.5M | 2004 | DuPont |
| C8 Medical Monitoring Class (Leach) | ~$343M | 2005 | DuPont |
Denmark banned PFAS in food-contact paper and board in July 2020 — before most Americans had even heard the term “forever chemicals.” State laws in Maine, Washington, California, and New York followed. In January 2023, five European nations submitted a universal PFAS restriction proposal to the European Chemicals Agency covering over 10,000 PFAS compounds — the broadest such action in history.
The Stockholm Convention has listed PFOS (2009), PFOA (2019), PFHxS (2022), and long-chain perfluorocarboxylic acids (2025) as persistent organic pollutants. The U.S. signed but has not ratified the Stockholm Convention. Meanwhile, the Trump EPA spent 2025 rolling back PFAS protections — celebrated by the American Chemistry Council and challenged by 33+ state attorneys general.
Every statistic in this deck is a person. Here are some of the names behind the numbers — the people who paid the price for decisions made in corporate boardrooms and who forced the accountability that followed.
Watched 153 cattle die with tumors, blackened teeth, and lesions after DuPont dumped 7,100+ tons of PFOA sludge near his farm. Dismissed as a crackpot for years. Hired Robert Bilott in 1998. Died in 2009 from cancer. His case cracked open DuPont’s entire cover-up.
Born with facial birth defects linked to his mother Sue’s in-utero PFOA exposure while working at DuPont. DuPont knew about the birth defect cases internally by 1981 and said nothing. Bucky became a plaintiff and a face of the PFAS accountability movement.
Took Wilbur Tennant’s case as a favor in 1998 and spent 20+ years fighting DuPont. Drove creation of the C8 Science Panel. His story is told in Exposure (Atria Books, 2019) and the film Dark Waters (2019) with Mark Ruffalo.
First bellwether plaintiff to win at trial. On October 7, 2015, a jury awarded her $1.6 million after finding DuPont negligent for contaminating her drinking water. Her verdict opened the floodgates for 3,550 more settlements totaling $670.7M.