Cottage Grove, Minnesota: 3M PFAS Contamination and Your Legal Rights
If you live in Cottage Grove, Woodbury, Oakdale, Lake Elmo, or anywhere along the east metro corridor of the Twin Cities, you have been hearing about 3M and PFAS for years. You may have shrugged it off, trusted the water filters, or assumed the 2018 settlement fixed it. On May 1, 2026, the Minnesota Pollution Control Agency filed a new lawsuit saying the contamination is still happening — at concentrations as high as 310,000 parts per trillion in some locations, a number so far above the federal safety limit that it changes the conversation from “is the water safe?” to “who is going to be held accountable for what it already did to my family?”
We are Attorney911 — The Manginello Law Firm, PLLC. We handle toxic tort and environmental contamination cases, and we built this page for one person: the east metro resident who just read the headline, turned to their spouse, and said, “Could this be why?” Maybe why the kidney cancer. Maybe why the thyroid disease. Maybe why the pregnancy was so hard. Maybe just why the water never tasted right.
This page is not about the state’s lawsuit — that is the government’s fight. This is about your fight. Your right to medical monitoring. Your right to compensation if you have been diagnosed with a PFAS-associated disease. Your right to answers from a company that, according to publicly available deposition testimony from its own executives and scientists, knew about these risks far earlier than it told you.
What Happened: The New MPCA Lawsuit Against 3M
On May 1, 2026, the Minnesota Pollution Control Agency sued the 3M Company in state court, alleging that 3M is responsible for ongoing groundwater and surface water contamination near its Cottage Grove facility — including industrial and stormwater discharges that reach the Mississippi River. The state says some locations tested as high as 310,000 parts per trillion for PFAS, a concentration that dwarfs every state and federal standard by orders of magnitude. The agency alleges that although the specific site “does not routinely discharge to surface waters,” a heavy rainfall could carry that contamination into the river — the same river that supplies drinking water to the Twin Cities metropolitan area.
The MPCA also alleges that 3M has not completed cleanup work required under a 2022 order and that its groundwater extraction system is not sufficient. The state is seeking civil penalties of up to $30,000 per violation per day, enhanced cleanup efforts, and compensation for damage to wildlife and natural resources.
3M’s response is a two-pronged defense: first, that some of the PFAS pollution came from testing firefighting foam made for the U.S. military under Department of Defense requirements, and second, that the case should be moved from state court to federal court because the environmental damage is linked to its role as a government contractor. The company also states it completed its planned exit from all PFAS manufacturing at the end of 2025.
This is not 3M’s first PFAS lawsuit. In 2018, Minnesota settled with 3M for $850 million to help clean up drinking water in the east metro. In 2024, 3M agreed to pay $10.3 billion over 13 years to address PFAS in drinking water systems nationwide. Both settlements established 3M’s acknowledged responsibility for PFAS contamination at scale — but neither settlement covers individual personal injury claims for people who got sick.
The Number That Should Stop You: 310,000 Parts Per Trillion
The federal government’s position on how much PFOA and PFOS — two of the most studied PFAS compounds — should be in your drinking water is settled in a regulation finalized in 2024:
“EPA is finalizing… individual MCLs for PFOA and PFOS at 4.0 nanograms per liter (ng/L) or parts per trillion (ppt)… and is finalizing health-based Maximum Contaminant Level Goals (MCLGs) for PFOA and PFOS at zero.”
That bears repeating. The federal health goal is zero. There is no amount the EPA considers safe. The legal limit — the maximum contaminant level — is 4.0 parts per trillion. That is roughly one drop of contamination spread across twenty Olympic swimming pools.
The concentrations the MPCA found near 3M’s Cottage Grove facility: 310,000 parts per trillion.
That is 77,500 times the federal maximum contaminant level. It is a number so large it stops being a statistic and becomes an indictment. Whatever you thought you knew about the scale of this contamination, that single figure should recalibrate it. This is not a trace. This is not a slight exceedance. This is a industrial-scale chemical fingerprint sitting in the ground beneath a community that has been drinking, cooking, and bathing in its water for decades.
And because PFAS compounds are called “forever chemicals” for a reason — they do not break down in the environment or in the human body — the contamination that 3M discharged years or decades ago is still there. Still migrating. Still entering the water supply. The 2022 cleanup order that the state says 3M has not completed was supposed to address exactly this, and the state’s new lawsuit says the extraction system is not enough.
What 3M Knew and When: The Deposition Evidence
Public reporting has confirmed that hundreds of hours of video depositions of 3M executives and scientists exist in the public record — testimony that sheds light on what the company knew about PFAS contamination and when it knew it. We do not have to guess whether 3M was aware of the risks. The deposition testimony is a roadmap for what individual plaintiffs can seek in discovery: internal emails, meeting minutes, scientific reports, and communications that establish a timeline of corporate awareness.
Why this matters for your individual claim: under Minnesota law, punitive damages are available when a defendant shows “deliberate disregard for the safety of others.” If discovery confirms that 3M executives knew of PFAS health and environmental risks and withheld or minimized that information, that is not just negligence — it is the predicate for punishment damages. The deposition testimony referenced in public reporting is the kind of evidence that directly supports a deliberate-disregard theory, potentially multiplying compensatory exposure substantially.
This is where the distinction between the state’s lawsuit and your individual claim becomes critical. The state’s enforcement action seeks civil penalties, cleanup, and natural resource damages — money that goes to the government and the environment. It does not pay for your medical monitoring. It does not compensate you for your kidney cancer. It does not cover your lost wages or your family’s pain and suffering. Those are individual toxic tort claims, and they are separate from what the MPCA is doing.
Cottage Grove and the East Metro: Who Was Exposed
Cottage Grove sits in Washington County, Minnesota, about ten miles southeast of St. Paul along the Mississippi River corridor. The 3M Cottage Grove facility has been documented for decades as a primary source of PFAS manufacturing and disposal in the east metro region. The facility’s proximity to the Mississippi River is significant because the river is a major drinking-water source for the Twin Cities — creating a direct contamination pathway from industrial site to public water supply.
The communities that have historically borne the highest PFAS exposure burdens from 3M’s operations include:
- Cottage Grove — home to the 3M facility itself, with groundwater plumes documented beneath residential areas
- Woodbury — where municipal wells have tested positive for PFAS and some have been shut down or treated
- Oakdale — one of the first communities where PFAS contamination was publicly identified in east metro drinking water
- Lake Elmo — where private wells and municipal systems have been affected by the groundwater plume
The east metro area was the subject of the $850 million 2018 settlement, which funded drinking water remediation projects. But the persistence of PFAS compounds — which do not break down — means the contamination timeline spans decades. If you lived, worked, or consumed drinking water in these communities for any extended period, you were exposed. The question is not whether. The question is how much, and what it did to you.
The Health Conditions Linked to PFAS Exposure
PFAS are persistent, bioaccumulative chemicals that bind to serum proteins and concentrate in the liver and kidney. They are not metabolized. They have long human half-lives — measured in years, not days. Once they enter your body through contaminated drinking water, they stay.
The C8 Science Panel — an independent group of epidemiologists established as part of a class-action settlement — conducted the most extensive study of PFOA exposure and human health to date. The panel found a “probable link” between PFOA and six conditions:
- Kidney cancer — one of the two malignancies most strongly linked to PFAS exposure
- Testicular cancer — the other strongly linked malignancy
- High cholesterol — a metabolic effect documented at relatively low exposure levels
- Thyroid disease — including both hyperthyroid and hypothyroid conditions
- Pregnancy-induced hypertension — including preeclampsia, which can be life-threatening
- Ulcerative colitis — a chronic inflammatory bowel disease
In 2024, the International Agency for Research on Cancer — the world’s leading cancer-science authority — classified PFOA as Group 1, carcinogenic to humans, and PFOS as Group 2B, possibly carcinogenic. This is not a plaintiff’s lawyer’s theory. It is the consensus of the same body that classifies tobacco, asbestos, and benzene.
What this means for you: if you lived in the east metro and have been diagnosed with kidney cancer, testicular cancer, thyroid disease, or ulcerative colitis, your exposure history and your diagnosis may be connected in a way the law recognizes. The connection is not automatic — specific causation is always the hardest fight in a toxic tort case — but the scientific foundation is real, and the exposure levels documented near Cottage Grove are extraordinary.
Minnesota’s Environmental Liability Framework
Minnesota operates under a robust environmental liability regime that gives both the state and individual plaintiffs powerful tools.
The Minnesota Environmental Response and Liability Act (MERLA)
Minnesota has its own state-level equivalent of the federal Superfund law. MERLA imposes strict liability for releases of hazardous substances — meaning a company does not have to be proven careless. If it owned the site, ran the site, made the waste, or disposed of the waste, it can be held responsible. The liability is also joint and several, which means any one responsible party can be held accountable for the entire cleanup. And it is retroactive — reaching conduct that happened decades before the law was passed.
For individual PFAS claims, MERLA provides the framework under which the state and potentially private plaintiffs can seek cleanup costs and natural resource damages. But for personal injury claims, the path runs through Minnesota tort law.
Minnesota’s Water Pollution Control Act
The Water Pollution Control Act provides the statutory basis for the civil penalties the MPCA is seeking — up to $30,000 per violation per day, as reported. This is the state’s enforcement tool. Your individual claim does not rely on it, but the violations it documents are evidence of the contamination that caused your exposure.
Minnesota’s Punitive Damages Standard
Minnesota allows punitive damages when a plaintiff shows that the defendant acted with “deliberate disregard for the safety of others.” This is a higher standard than ordinary negligence but one that the deposition testimony referenced in public reporting — showing what 3M executives knew and when — is specifically designed to meet. If discovery confirms that 3M knew of PFAS health risks and withheld or minimized that information, punitive damages become a real and potentially enormous exposure for the company.
Minnesota’s Statute of Limitations for Toxic Tort Claims
Minnesota imposes a statute of limitations on personal injury and wrongful death claims — a deadline measured in years. For toxic tort cases involving diseases that can take decades to appear after exposure, the discovery rule generally means the clock starts when you discover your injury and its causal connection to the contamination, not when the exposure itself occurred. A diagnosis of kidney cancer you received last year — even if the exposure that caused it happened twenty years ago — may have started your clock recently, not long ago.
The exact deadline depends on your specific claim, your diagnosis date, and when you learned or should have learned that PFAS exposure caused your condition. Confirming that deadline is one of the most urgent reasons to call a lawyer now, because the difference between “still in time” and “too late” can be a matter of months, and the evidence that proves your case is disappearing on its own schedule.
Comparative Fault in Minnesota
Minnesota follows a modified comparative fault rule, meaning your own share of fault can reduce your recovery, and at a certain threshold, can bar it entirely. In the PFAS context, the defense may try to argue that you assumed the risk by continuing to drink the water after contamination was publicly reported. The counter is straightforward: 3M’s alleged concealment of what it knew about PFAS health risks undermines any claim that you knowingly accepted the danger. You cannot assume a risk you were never honestly told about.
The Federal Regulatory Floor: EPA Standards and CERCLA
Minnesota’s state standards are reinforced by a federal regulatory framework that has grown increasingly aggressive toward PFAS manufacturers.
The EPA’s PFAS Drinking Water Regulation
In April 2024, the EPA finalized the PFAS National Primary Drinking Water Regulation, setting enforceable maximum contaminant levels for PFOA and PFOS at 4.0 parts per trillion each. The health-based goal — the maximum contaminant level goal — was set at zero, meaning the EPA found no threshold below which there is no risk. This federal floor complements Minnesota’s own state standards, which are independently enforceable regardless of federal action.
A proposed rule published in May 2026 would extend the PFOA/PFOS compliance deadline from 2029 to 2031 and would rescind the limits for several other PFAS compounds (PFHxS, PFNA, HFPO-DA/GenX, and the Hazard Index mixture). These are proposals, not final rules. The 4.0 ppt PFOA/PFOS limit remains the current law. But the uncertainty underscores why state standards — like Minnesota’s — matter as an independent enforcement tool.
CERCLA: PFOA and PFOS as Hazardous Substances
In May 2024, the EPA designated PFOA and PFOS as hazardous substances under the federal Superfund law (CERCLA). This designation means that any entity that releases a pound or more of these chemicals in a 24-hour period must report the release to the National Response Center. It also expands the universe of liable parties and cleanup obligations.
CERCLA liability is strict, joint and several, and retroactive. The company does not have to be proven careless. If it owned the site, ran it, made the waste, or hauled it, it can be made to pay for the entire cleanup — even for pollution from decades ago. There are almost no defenses. This is the framework under which the MPCA is pursuing 3M, and it is the same framework that establishes 3M’s responsibility for the contamination that reached your water.
TSCA: PFAS Reporting Back to 2011
Under the Toxic Substances Control Act, the EPA requires any person who manufactured or imported PFAS or PFAS-containing articles in any year since January 1, 2011, to report uses, production volumes, disposal, exposures, and known hazards. This means 3M was required to compile and retain PFAS production and hazard records going back over a decade — records that may show what the company knew about the dangers of its products and when it knew it.
The State’s Lawsuit vs. Your Individual Claim
This is the distinction that matters most, and it is the one most people miss.
The MPCA’s lawsuit is an enforcement action. It seeks civil penalties that go to the state, enhanced cleanup that benefits the environment, and compensation for natural resource damage — including injury to wildlife and ecosystems. It does not compensate you for your kidney cancer. It does not pay for your medical monitoring. It does not reimburse your lost wages or recognize your pain and suffering.
Your individual claim is a toxic tort action. It seeks:
- Medical monitoring costs — baseline serum testing, periodic health surveillance for PFAS-associated conditions, and the peace of mind that comes from early detection
- Past and future medical expenses — treatment for diagnosed conditions linked to PFAS exposure
- Lost wages and lost earning capacity — if your diagnosis affected your ability to work
- Property diminution — if your home’s value has been affected by proximity to documented contamination
- Pain and suffering — the human cost of living with a disease you should never have developed, and the anxiety of knowing you were exposed without your knowledge or consent
- Wrongful death damages — if a family member died from a PFAS-associated condition, including loss of financial support, loss of companionship, and the value of the life itself
- Punitive damages — if the evidence shows 3M knew of the risks and deliberately disregarded them
The state’s lawsuit and your individual claim are separate legal actions. The state’s settlement with 3M — whether the 2018 settlement, the 2024 nationwide settlement, or any resolution of the current lawsuit — does not extinguish your right to sue individually. But the existence of those settlements does something important: it establishes 3M’s acknowledged responsibility for PFAS contamination at scale, which is powerful leverage in any individual case.
3M’s Government Contractor Defense Explained
3M’s primary legal strategy in the MPCA lawsuit is the government contractor defense. The company argues that some PFAS pollution came from testing firefighting foam (AFFF) made for the U.S. military under Department of Defense specifications, and that it warned the federal government about PFAS risks. Based on this, 3M wants the case moved from state court to federal court, where it believes the government contractor defense is stronger.
Here is why this defense is the central battleground — and why it matters for your individual claim:
The government contractor defense, when it applies, shields a manufacturer from liability for products made to government specifications. But the defense has limits. It generally requires that the government approved reasonably precise specifications, the product conformed to those specifications, and the manufacturer warned the government about known dangers.
For individual plaintiffs, the counter is straightforward: 3M’s PFAS disposal and manufacturing decisions extended well beyond DOD-specified firefighting foam testing. 3M independently chose disposal methods and sites. It independently decided how to handle waste from its non-military PFAS production. And the contamination from those non-military sources is substantial and separable from any military-related discharge.
The deposition testimony referenced in public reporting — showing what 3M executives and scientists knew about PFAS risks — is directly relevant to whether 3M adequately warned the government. If 3M knew more than it told the DOD, the defense weakens. And if 3M’s contamination came predominantly from its commercial manufacturing operations rather than military testing, the defense may not apply to the bulk of the pollution at all.
For your individual claim, the government contractor defense is 3M’s problem, not yours — unless your exposure can be traced to military-related AFFF testing, which is unlikely for east metro residents whose exposure came through drinking water contaminated by 3M’s Cottage Grove facility. Your claim is about the water you drank, not the foam the military sprayed.
3M as a Defendant: Corporate Structure and Settlement History
The 3M Company is one of the largest industrial corporations in the United States, headquartered in Maplewood, Minnesota — minutes from the communities it contaminated. It is a publicly traded company (NYSE: MMM) with the resources to fund both massive settlement payments and aggressive legal defenses.
3M’s PFAS liability history is extensive:
- 2018 Minnesota settlement: $850 million — resolved the state’s claims for east metro drinking water remediation
- 2024 nationwide settlement: $10.3 billion over 13 years — to address PFAS in public drinking water systems across the country
- 2026: new MPCA lawsuit — alleging ongoing contamination and failure to complete required cleanup
These settlements establish a pattern of acknowledged responsibility. They are not admissions of fault for individual diseases, but they are powerful evidence that 3M recognizes its PFAS contamination as a problem it caused and must pay to address. In any individual case, these prior settlements serve as benchmarks of 3M’s willingness to resolve PFAS liability at scale.
3M completed its planned exit from all PFAS manufacturing at the end of 2025. This is significant for evidence preservation: corporate reorganizations that accompany major business exits can result in document migration, application of retention policies, or destruction of records. If you have an individual claim, the evidence of what 3M knew and when it knew it may be at risk of disappearing as the company restructures.
If your case involves a PFAS-associated cancer and the exposure tragically resulted in death, wrongful death claims carry their own damages framework — including survival damages for the decedent’s conscious pain and pre-death medical expenses, plus wrongful death damages for the heirs’ loss of financial support and companionship.
The Evidence That Is Disappearing Right Now
Every PFAS case lives or dies on evidence, and the evidence in this case is on a clock. Some of it is already gone. Some of it is disappearing right now. Here is what exists, who holds it, and how fast it can legally die:
3M Internal Corporate Documents — Critical, At Risk
Internal emails, memos, meeting minutes, and scientific reports establishing when 3M executives first learned of PFAS health and environmental risks — and what they did or did not do in response. These documents support punitive damages and fraudulent concealment theories, and they undermine any defense based on lack of knowledge. 3M has completed its PFAS manufacturing exit, and corporate reorganization may result in document migration, retention policy application, or destruction. A litigation hold must be issued immediately to freeze these records.
Video Depositions of 3M Executives and Scientists — In Public Record
Hundreds of hours of deposition testimony referenced in public reporting — direct evidence of corporate knowledge, potential admissions about PFAS risks, and state of mind relevant to punitive damages. These exist in the public record or court files. They should be obtained and verified before any potential sealing or restricted access changes their availability.
Groundwater Monitoring and Extraction System Operational Data — High Risk
Data from the Cottage Grove facility showing the scope and duration of contamination, the effectiveness (or ineffectiveness) of remediation efforts, and compliance with the 2022 cleanup order. Operational data is continuously generated, and older data may be subject to records retention schedules. Historical data is irreplaceable — once it is gone, no one can recreate what the monitoring systems measured ten or twenty years ago.
Water Quality Testing Results from Municipal and Private Wells — Moderate Risk
Testing results from Washington County and Dakota County water systems establish the exposure pathway and dose for individual claimants. Ongoing testing programs exist, but historical baseline data and discontinued sampling records are at risk. If you consumed water from a private well, your own well test results — if they exist — are critical evidence. Obtain them now.
3M Waste Disposal and Manufacturing Records — High Risk
Records documenting the source, volume, and timeline of PFAS discharge at the Cottage Grove facility. These are essential for causation and for rebutting the government contractor defense. Decades-old records may already be incomplete, and 3M’s PFAS manufacturing exit increases the risk of records disposition.
Employee Testimony from Current and Former 3M Personnel — Critical, Time-Sensitive
Firsthand knowledge of disposal practices, awareness of contamination, internal communications about PFAS risks, and compliance with cleanup orders. Personnel turnover, retirement, and memory degradation accelerate with each passing year. Key witnesses from earlier disposal periods are aging. A witness who remembered where the waste went in 1995 may not remember in 2030 — or may not be here to tell it.
The preservation letter — a formal demand that 3M and all relevant third parties freeze these records — goes out the day you call. Not after the state’s lawsuit resolves. Not after you talk to your doctor. Not after you “think about it.” The day you call, because every day that passes is a day the defense is counting on you to lose.
What Your PFAS Exposure Case May Be Worth
Every case is different, and the value of a PFAS toxic tort claim depends heavily on specific causation — the ability to link your diagnosed condition to PFAS exposure rather than background risk factors. With that honest caveat, here is the framework:
Medical Monitoring-Only Claims
For individuals with documented exposure to contaminated drinking water above state PFAS standards but no diagnosed disease: approximately $50,000 and up. These claims seek the cost of baseline serum testing, periodic health surveillance for PFAS-associated conditions, and the diagnostic procedures that can catch kidney cancer, testicular cancer, thyroid disease, and ulcerative colitis early — when they are treatable.
Diagnosed Disease Claims
For individuals with a diagnosed PFAS-associated cancer (kidney or testicular cancer being the most strongly linked), a clear exposure pathway through documented water contamination, prolonged contamination history, and punitive damages supported by corporate knowledge evidence: the range extends significantly — potentially into seven figures per individual claimant. The high end reflects a diagnosed cancer with clear exposure, prolonged contamination history, and the deliberate-disregard evidence that the deposition testimony is designed to establish.
Mass Tort Aggregate Exposure
For 3M across the east metro population, aggregate exposure could substantially exceed nine figures given the documented contamination levels (310,000 ppt), the decades-long exposure window, the size of the affected population, and the prior $850 million and $10.3 billion settlements establishing 3M’s willingness to resolve PFAS liability at scale. Individual claims are pieces of that aggregate, and the strength of each individual claim depends on the quality of the exposure evidence and the specificity of the medical diagnosis.
What Reduces Value
The primary deflator in any individual PFAS case is specific causation. The defense will argue that your kidney cancer could have come from smoking, diet, genetics, or bad luck. The counter lives in the exposure evidence — documented water contamination at your address, serum PFAS levels if available, the dose-response data from the C8 Science Panel, and the IARC Group 1 classification of PFOA as a known human carcinogen. The stronger your exposure evidence, the harder it is for the defense to wave away the connection.
The Corporate Defense Playbook and How We Counter It
3M has some of the best lawyers in the country. Here are the plays they will run and how each one is answered:
Play 1: “The Government Contractor Defense”
3M argues that some PFAS contamination came from military firefighting foam testing and that it should not be held responsible for contamination tied to government work. They want the case in federal court, where this defense is stronger.
Our counter: 3M’s PFAS disposal and manufacturing decisions extended well beyond DOD-specified AFFF testing. The company independently chose disposal methods and sites for its commercial PFAS production. The contamination from non-military sources is substantial and separable. And for individual east metro residents whose exposure came through drinking water — not from military base AFFF — the government contractor defense has limited relevance to your claim.
Play 2: “We Already Settled This”
3M points to the 2018 $850 million Minnesota settlement and the 2024 $10.3 billion nationwide settlement and argues that PFAS liability has been resolved.
Our counter: Those settlements covered specific categories of claims — drinking water remediation and public water system treatment. They did not cover individual personal injury claims, medical monitoring, wrongful death, or punitive damages. The settlements establish 3M’s acknowledged responsibility for PFAS contamination, which is leverage, not a bar.
Play 3: “You Cannot Prove Our Chemicals Caused Your Cancer”
The defense argues that kidney cancer, testicular cancer, and thyroid disease have many causes, and that you cannot prove your specific disease came from 3M’s PFAS rather than background risk.
Our counter: Elevated exposure documented through water utility testing, residence history in the contamination plume, the C8 Science Panel’s probable-link findings, IARC’s Group 1 classification of PFOA, and dose-response analysis by a board-certified toxicologist. The defense wants you to believe the connection is unknowable. The science says otherwise.
Play 4: “You Waited Too Long”
The defense argues that the statute of limitations has expired because the contamination has been publicly known for years.
Our counter: The discovery rule for latent diseases means the clock generally starts when you discovered your injury and its causal connection to PFAS exposure — not when the contamination first occurred. A diagnosis you received last year may have just started your clock. But this is a fight you can lose if you wait, which is exactly why the deadline must be confirmed now.
Play 5: “We Exited PFAS Manufacturing — The Problem Is Historical”
3M emphasizes that it completed its PFAS manufacturing exit at the end of 2025, implying the contamination is a legacy issue being addressed.
Our counter: PFAS compounds do not break down. The contamination 3M discharged decades ago is still in the groundwater, still migrating, still entering the water supply. The state’s own lawsuit says the 2022 cleanup order has not been completed and the extraction system is insufficient. Manufacturing exit does not equal contamination resolution.
How a PFAS Case Is Actually Built
Here is the chronological walk of how an individual PFAS toxic tort case is built, from the day you call to resolution:
Week one: The preservation letter goes out — to 3M, to the water utility, to any testing laboratory — freezing the evidence before it disappears. Your residence history is documented: every address you lived at in the east metro, the years you lived there, and the water source (municipal or private well) at each address. Your medical records are collected, including the diagnosis that brought you here.
Weeks two through eight: Water quality testing data is assembled — from the Minnesota Department of Health, from the water utility, from any private well tests. The contamination plume is mapped against your residence history to establish your exposure pathway and estimate your dose. Your serum PFAS level may be tested if you have not already had it done, providing a biological marker of your body burden.
Months two through six: Expert witnesses are retained — a toxicologist board-certified in environmental medicine to establish general causation between PFAS exposure and your disease, a hydrogeologist to map the contamination plume and confirm the exposure pathway from the Cottage Grove facility to your water source, and an epidemiologist to perform exposure reconstruction and dose-response analysis. The life-care planner begins building your future-cost projection if your diagnosis requires ongoing treatment.
Months six through eighteen: Discovery proceeds. 3M’s internal corporate communications are produced — the emails, memos, and scientific reports that show what the company knew and when. The deposition testimony referenced in public reporting is obtained and analyzed. 3M executives and scientists are deposed under oath about their knowledge of PFAS risks and their decisions about disposal and disclosure.
The number at the end: Built from all of it — the exposure evidence, the medical records, the expert testimony, the corporate knowledge documents, the life-care plan reduced to present value by a forensic economist, and the punitive damages supported by what 3M’s own executives said under oath. That number is not picked from the air. It is built, piece by piece, from the proof.
Your First Steps: What to Do Now
1. Get medical evaluation if you have not already. If you lived in the east metro and have not had a physical that includes kidney function tests, thyroid panels, and a discussion of your PFAS exposure history, schedule one. Your health comes first. A physician’s diagnosis is the foundation of any personal injury claim.
2. Document your exposure history. Write down every address you lived at in Cottage Grove, Woodbury, Oakdale, Lake Elmo, or any other east metro community. Note the years you lived there and whether your water was municipal or from a private well. If you have any water test results from your home, find them.
3. Gather your medical records. If you have been diagnosed with kidney cancer, testicular cancer, thyroid disease, ulcerative colitis, or pregnancy-induced hypertension, collect your diagnostic records, pathology reports, treatment summaries, and medical bills. These establish your injury and its timeline.
4. Do not sign anything from 3M, its insurers, or any claims administrator without legal review. If you receive a communication offering compensation, requesting a release, or asking you to participate in a settlement program, do not sign it until a lawyer has reviewed it. A release you sign today may extinguish rights you do not yet know you have.
5. Call a lawyer. Not next month. Not after the state’s lawsuit resolves. Now — because the evidence that proves your case is disappearing, the statute of limitations clock may be running, and the preservation letter that freezes 3M’s records is the one piece of paper standing between your case and a company that has completed its PFAS manufacturing exit and may be restructuring its document archives.
Contact us for a free consultation. The call costs nothing. The conversation is confidential. And if we are not the right fit for your case, we will tell you.
Frequently Asked Questions
Can I sue 3M if I lived in the east metro and drank contaminated water?
Yes — if you have been diagnosed with a health condition linked to PFAS exposure (kidney cancer, testicular cancer, thyroid disease, ulcerative colitis, pregnancy-induced hypertension) and you can establish that you consumed contaminated drinking water in the affected area for a meaningful period, you may have an individual toxic tort claim separate from the state’s enforcement action. The state’s lawsuit seeks civil penalties and cleanup — it does not compensate you for your personal injuries. Your claim is your own.
What health conditions are linked to PFAS exposure?
The C8 Science Panel found a “probable link” between PFOA and six conditions: kidney cancer, testicular cancer, high cholesterol, thyroid disease, pregnancy-induced hypertension, and ulcerative colitis. In 2024, the International Agency for Research on Cancer classified PFOA as Group 1 (carcinogenic to humans) and PFOS as Group 2B (possibly carcinogenic). More recent scientific reviews continue to study additional potential links, but these six conditions have the strongest evidence base.
How long do I have to file a PFAS lawsuit in Minnesota?
Minnesota imposes a statute of limitations on personal injury and wrongful death claims — a deadline measured in years. For toxic tort cases involving latent diseases, the discovery rule generally means the clock starts when you discover your injury and its causal connection to PFAS exposure, not when the exposure itself occurred. A recent cancer diagnosis may have just started your clock, even if the exposure happened decades ago. The exact deadline depends on your specific circumstances, which is why confirming it with a lawyer is urgent.
What is the difference between the state’s lawsuit and my individual claim?
The MPCA’s lawsuit is an enforcement action seeking civil penalties (up to $30,000 per violation per day), enhanced cleanup, and compensation for natural resource damage. That money goes to the state and the environment. Your individual claim is a separate toxic tort action seeking medical monitoring, medical expenses, lost wages, pain and suffering, wrongful death damages, and potentially punitive damages. The state’s lawsuit does not represent you, and any settlement the state reaches with 3M does not extinguish your individual rights — unless you sign something that says it does.
What is medical monitoring and do I need it?
Medical monitoring is a court-supervised program of periodic medical testing designed to detect PFAS-associated diseases at their earliest, most treatable stages. It typically includes baseline serum PFAS testing, kidney function tests, thyroid panels, and condition-specific surveillance based on your exposure history and risk profile. If you lived in the east metro for an extended period, medical monitoring is available and advisable regardless of whether you currently have a diagnosis — because early detection of kidney cancer or testicular cancer can be lifesaving.
How much is my PFAS exposure case worth?
Case value depends on whether you have a diagnosed disease or are seeking medical monitoring only. Medical monitoring-only claims (documented exposure, no diagnosed disease) start at approximately $50,000. Claims involving a diagnosed PFAS-associated cancer with clear exposure pathway, prolonged contamination history, and punitive damages supported by corporate knowledge evidence can extend significantly higher — potentially into seven figures per individual claimant. The primary factor that reduces value is specific causation — the ability to link your diagnosed condition to PFAS exposure rather than other risk factors. Past results depend on the facts of each case and do not guarantee future outcomes.
What if I received money from the 2018 settlement?
The 2018 $850 million settlement was administered by the state for drinking water remediation projects — including new water treatment systems, alternative water supplies, and infrastructure improvements in the east metro. If you benefited from those projects (cleaner water, a new municipal connection), that does not extinguish your right to sue 3M for personal injury. The settlement covered environmental remediation, not individual disease claims. But if you signed an individual release as part of any 3M-related settlement, have a lawyer review it before assuming your rights are gone.
Can 3M’s government contractor defense affect my individual claim?
3M’s government contractor defense — which argues that some PFAS contamination came from military firefighting foam testing — is primarily aimed at the state’s enforcement action and 3M’s attempt to move the case to federal court. For individual east metro residents whose exposure came through drinking water contaminated by 3M’s Cottage Grove facility, the defense has limited direct relevance. Your claim is about the water you drank, not the foam the military used. The defense is 3M’s problem in the state’s case; it is not a bar to your individual claim unless 3M can show your specific exposure came from military-related activity, which is unlikely for a drinking water pathway.
What should I do if I have been diagnosed with kidney cancer and lived in the east metro?
First, follow your oncologist’s treatment plan. Your health is the priority. Second, document your residence history in the east metro — every address, every year, every water source. Third, gather your medical records: pathology reports, imaging, treatment summaries, bills. Fourth, call a lawyer who handles toxic tort cases. The connection between PFAS exposure and kidney cancer is supported by the C8 Science Panel’s probable-link finding and IARC’s Group 1 classification of PFOA. The exposure levels documented near Cottage Grove are extraordinary. Your case may be stronger than you think — but the evidence is disappearing, and the clock may be running.
Is it too late to file a claim if the contamination happened decades ago?
It may not be. PFAS compounds are forever chemicals — they do not break down, which means the exposure is ongoing even if the original discharge happened decades ago. And under the discovery rule for latent diseases, the statute of limitations clock generally starts when you discover your injury and its cause, not when the exposure occurred. A diagnosis you received within the last few years may mean your claim is timely today. But this is not something to gamble on — the deadline is specific to your circumstances and your state’s law, and waiting can turn a viable case into a missed one.
Why People Call Attorney911
Ralph Manginello has spent 27 years in courtrooms, including federal court. He was a journalist before he was a lawyer — which means he learned early that the most powerful argument is not the loudest one, it is the best-sourced one. He leads a trial team that handles toxic tort and environmental contamination cases with the same discipline a reporter brings to an investigation: find the documents, trace the timeline, let the facts do the talking.
Lupe Peña spent years inside a national insurance-defense firm — the rooms where adjusters and their software decided how to deny, delay, and devalue people exactly like you. He sat across the table from the defense. He knows how the other side prices a claim, which medical records they pick apart, and which delay tactics they deploy. Now he sits on your side of the table. And he does it in fluent Spanish — conducting full consultations without an interpreter, because your family deserves to understand every word of what is happening with your case.
We work on contingency. That means we do not get paid unless we win your case — 33.33% before trial, 40% if the case goes to trial. The consultation is free. The call is confidential. And we have 24/7 live staff — not an answering service — because the moment you decide to act is rarely during business hours.
Our practice areas include toxic tort, wrongful death, and catastrophic injury — the exact intersection of law, medicine, and corporate accountability that a PFAS case demands. We have recovered more than $50 million for our clients across the cases we have handled. Past results depend on the facts of each case and do not guarantee future outcomes. But the commitment behind those results is the same one we bring to every call: we work until the evidence is frozen, the exposure is mapped, the medicine is documented, and the company that put these chemicals in your water has to answer for what it did.
Hablamos Español. Your family can talk to us in the language you think in.
The water in Cottage Grove tested at 310,000 parts per trillion. The federal limit is 4. The company that made these chemicals knew more than it told you. And the evidence of what it knew is on a clock.
Call 1-888-ATTY-911. Free consultation. No fee unless we win your case.