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{{#seo:
#REDIRECT [[Vermiculite and Libby Montana]]
|title=Vermiculite & Libby Montana Asbestos Disaster: 694 Deaths, EPA Emergency, WR Grace
|description=The Libby, Montana vermiculite mine caused 694 documented deaths and 3,400+ asbestos disease cases. EPA declared its first-ever CERCLA Public Health Emergency. W.R. Grace compensation options explained.
|keywords=Libby Montana asbestos, vermiculite asbestos, Zonolite insulation, W.R. Grace, Libby amphibole, ZAI Trust, EPA superfund Libby
|author=WikiMesothelioma Editorial Team
|published_time=2026-03-13
}}
__NOTOC__
{| class="wikitable" style="float:right; margin:0 0 1em 1em; width:320px;"
! colspan="2" style="background:#1a5276; color:white; text-align:center;" | Libby, Montana Asbestos Disaster
|-
| '''Mine Operator''' || W.R. Grace & Co. (1963–1990)
|-
| '''Peak Production''' || ~80% of world's vermiculite supply
|-
| '''Documented Deaths''' || 694 (1979–2011, death certificate data)
|-
| '''CARD Certifications''' || 3,400+ asbestos-related diseases
|-
| '''EPA Emergency''' || First-ever CERCLA Public Health Emergency (June 2009)
|-
| '''Cleanup Cost''' || $600M+ and ongoing
|-
| '''Homes Affected''' || ~35 million (Zonolite attic insulation)
|-
| '''Trust Funds''' || WRG PI Trust + ZAI Property Trust (est. 2014)
|}
 
= Vermiculite and the Libby, Montana Asbestos Disaster =
 
== The Libby, Montana Asbestos Disaster ==
 
The Libby, Montana, vermiculite mine operated from the early 1920s through 1990, producing approximately '''80% of the world's vermiculite supply''' during peak years under W.R. Grace & Company's ownership from 1963 to 1990.<ref name="atsdr2003" /> The ore deposit was naturally contaminated with a mixture of amphibole asbestos minerals — collectively classified as Libby Amphibole Asbestos (LAA) — which were distributed to processing facilities, homes, and commercial buildings across the United States and internationally.<ref name="epa-vermiculite" />
 
The public health consequences are among the most severe ever documented from a single industrial source. A peer-reviewed mortality study covering 1979–2011 identified '''694 documented asbestos-related deaths''' among residents of the Libby County Division based on death certificate data.<ref name="naik2016" /> The Center for Asbestos Related Disease (CARD), which opened in 2000 to provide clinical care and screening, has certified more than '''3,400 people''' with asbestos-related diseases.<ref name="card-screening" />
 
In June 2009, EPA Administrator Lisa P. Jackson declared a Public Health Emergency at the Libby asbestos site — '''the first and only time EPA has ever exercised this authority under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA)'''.<ref name="epa-emergency" /> Cleanup expenditures exceed '''$600 million''' and the former mine site (Operable Unit 3) remains in the feasibility study phase as of 2025.<ref name="epa-july2025" />
 
Victims and surviving family members may pursue compensation through the [[WR_Grace_Trust|W.R. Grace Asbestos Personal Injury Trust]], the Zonolite Attic Insulation (ZAI) Trust, and legal action. See [[Asbestos_Trust_Funds|asbestos trust funds]] and [[Trust_Fund_Filing_Guidance|trust fund filing guidance]] for full details.
 
== What Is Vermiculite and How Was It Contaminated? ==
 
Vermiculite is a hydrated laminar silicate mineral belonging to the mica group that expands dramatically when heated — by a factor of 10 to 15 — making it commercially valuable for insulation, fireproofing, and soil conditioning.<ref name="atsdr2003" /> The commercially significant asbestos fiber types are divided into two mineral groups: serpentine (chrysotile) and amphibole, which includes crocidolite, amosite, tremolite, actinolite, and anthophyllite. Amphibole fibers are more rod-like and biopersistent than chrysotile, resisting dissolution in lung tissue far longer and playing a central role in disease causation.<ref name="sullivan2007" />
 
The vermiculite deposit at Vermiculite Mountain (historically Zonolite Mountain) sits in the Rainy Creek Igneous Complex approximately 7 miles northeast of Libby. The ore contained up to 26% amphibole minerals before milling. After processing, the various grades of vermiculite concentrate shipped from Libby contained asbestos at significant levels, with the specific mineral mixture identified as:<ref name="meeker2003" />
 
{| class="wikitable" style="width:80%; margin:1em 0;"
! style="background:#1a5276; color:white;" | Mineral
! style="background:#1a5276; color:white;" | Percentage
! style="background:#1a5276; color:white;" | Regulatory Status
|-
| Winchite || 84% || Unregulated (not individually named in federal rules)
|-
| Richterite || 11% || Unregulated (not individually named in federal rules)
|-
| Tremolite || 6% || Regulated amphibole asbestos
|}
 
Winchite and richterite — comprising 95% of the mixture — are not individually named in federal asbestos regulations, which have historically focused on six commercial asbestos types. Their mineralogical difference from tremolite involves only iron content, with potentially no biological significance for disease causation.<ref name="meeker2003" /> EPA eventually classified "Libby Amphibole Asbestos" as a distinct toxicological entity in its risk assessment framework, recognizing that the specific mixture presented unique hazards requiring a site-specific approach.<ref name="atsdr2024" />
 
Not all vermiculite is contaminated. The Palabora mine in South Africa — one of the world's largest current vermiculite sources — has been extensively tested and confirmed to contain no detectable asbestos using transmission electron microscopy, polarized light microscopy, and X-ray diffractometry at detection levels below 0.001%. The Libby contamination was specific to the geology of that deposit.<ref name="dandell-libby" />
 
== Public Health Impact ==
 
The disease burden from Libby Amphibole exposure is extraordinary and well-documented. The landmark ATSDR mortality study (Naik et al., 2016) identified 694 decedents with at least one asbestos-related cause of death who resided in the Libby County Division between 1979 and 2011 — a 33-year analysis using geocoded death certificate data.<ref name="naik2016" /> Earlier ATSDR reports found that for the 20-year period 1979–1998, asbestosis mortality in Libby was '''40 to 80 times higher than expected''' compared to the general U.S. population.<ref name="atsdr2024" />
 
The initial ATSDR community screening program (2000–2001) screened approximately 7,100 former and current Libby residents with the following key findings:<ref name="pmc-followup" />
 
* '''17.8%''' of the 6,668 participants who received chest radiographs had pleural abnormalities — a marker of asbestos exposure
* '''6.7%''' of community residents reporting '''no occupational or familial exposure''' still had radiographic evidence of asbestos-related disease
* '''6.9%''' of screening participants reported an autoimmune disease diagnosis, compared to less than 1% expected nationally
* Prevalence of pleural abnormalities increased with the number of self-reported exposure pathways, from 6.7% (no apparent exposure) to 34.6% (12 exposure pathways)
 
A NIOSH cohort mortality study of 1,672 Libby workers found dramatically elevated standardized mortality ratios (SMRs) through 2001:<ref name="sullivan2007" /><ref name="pmc-vermiculite" />
 
{| class="wikitable" style="width:80%; margin:1em 0;"
! style="background:#1a5276; color:white;" | Cause of Death
! style="background:#1a5276; color:white;" | SMR
! style="background:#1a5276; color:white;" | 95% Confidence Interval
|-
| Asbestosis || 165.8 || 103.9–251.1
|-
| Cancer of the pleura || 23.3 || 6.3–59.5
|-
| Mesothelioma || 15.1 || 1.8–54.4
|-
| Lung cancer || 1.7 || 1.4–2.1
|}
 
Community exposure pathways extended far beyond the mine. Workers carried asbestos-laden dust home on clothing, exposing families through secondary contact. Vermiculite waste from the mine was used for school running tracks, ball fields, playgrounds, and driveways throughout Libby. Vermiculite was given freely to residents for gardening and home insulation. A downtown screening plant contaminated surrounding areas. Rainy Creek and the Kootenai River were also contaminated, and amphibole asbestos has been detected on the surface of tree bark in neighboring forests, creating ongoing inhalation risk.<ref name="dandell-libby" /><ref name="mesonet-vermiculite" />
 
CARD has certified more than 3,400 people with asbestos-related diseases and received over $20 million in cumulative federal funding. In 2024, CARD received a $3 million federal grant to continue operations through at least 2029. In 2025, CARD was forced to temporarily close due to a BNSF Railway lawsuit, raising concerns about reduced mesothelioma screenings and delayed early detection.<ref name="card-screening" />
 
== Nationwide Vermiculite Distribution ==
 
The Libby mine's impact extended far beyond Montana. W.R. Grace operated or contracted with vermiculite processing (exfoliation) plants across the country. EPA initially identified '''240 locations''' for study and determined 22 required additional investigation; other sources cite nearly 300 processing plants nationwide that received contaminated Libby vermiculite.<ref name="govinfo-congress" /><ref name="card-nationwide" />
 
Asbestos-contaminated Libby vermiculite was used in loose-fill attic insulation marketed under the '''Zonolite''' brand and shipped to millions of homes across the United States, Canada, and internationally. The commonly cited figure of approximately '''35 million homes''' containing Zonolite insulation is widely referenced in public health discussions.<ref name="zai-trust-general" /> The EPA advises homeowners to '''assume any vermiculite insulation contains asbestos''' unless testing proves otherwise.<ref name="epa-protect" />
 
Vermiculite insulation can be identified visually: it is pebble-like and granular, typically gray-brown, silver-gold, or light-brown with a shiny layered surface, with particle sizes ranging from 1/8" to over 1/2" in diameter. It is typically found in attic floors, wall cavities, rim joists, and crawl spaces.<ref name="epa-protect" /> EPA's official position is that undisturbed Zonolite poses lower immediate risk, but any disturbance — including renovation, re-roofing, HVAC work, or walking in the attic — can release hazardous fibers.<ref name="dandell-zonolite" />
 
Beyond residential insulation, W.R. Grace sold spray-on fireproofing material under the trade name '''Monokote'''. Monokote contained tremolite and chrysotile asbestos and was used to fireproof steel-structured buildings, including the '''World Trade Center''' and '''Madison Square Garden''', as well as most steel-framed buildings in New York City and around the world built before 1980. Grace internally acknowledged the contamination but decided against public disclosure, calculating that silence — though it increased lawsuit risk — was preferable to the potential end of the Monokote product line.<ref name="mesotheliomalawyercenter-grace" />
 
Fiber migration from attic spaces into living areas through light fixtures, ceiling cracks, and other penetrations has been documented in published research. At the Minneapolis Western Mineral Products site (which processed Libby vermiculite from 1938 to 1989), approximately 30% of remediated residences still showed detectable concentrations of Libby asbestos in indoor air after exterior cleanup.<ref name="mn-health" />
 
== W.R. Grace Corporate Conduct ==
 
Evidence from legal proceedings and internal documents reveals that W.R. Grace was aware of the asbestos hazard from the earliest years of its ownership, which began in 1963 when it acquired the Zonolite Company along with the Libby mine and all associated properties.<ref name="grace-indictment" />
 
* '''1963:''' Evidence shows Grace observed negative health effects in miners "soon after the acquisition" and knew the vermiculite contained asbestos
* '''1975–1976:''' Grace's own industrial hygienist documented environmental asbestos in Libby at levels between 1.0 and 1.5 fibers/ml air, exceeding OSHA standards
* '''1977:''' Grace internally drafted a press release announcing discontinuation of Zonolite insulation due to health hazards — and never released it, continuing to sell Zonolite until 1984
* '''Monokote deception:''' Internal meetings documented Grace's deliberate decision not to disclose asbestos contamination in reformulated Monokote; workers stopped wearing respirators because they were told the product was asbestos-free<ref name="mesotheliomalawyercenter-grace" />
 
The federal criminal trial — described as "the biggest criminal environmental prosecution in U.S. history" — began in February 2009 in Missoula, Montana.<ref name="aba-grace" /> Charges included conspiracy to knowingly release asbestos into ambient air while placing persons in imminent danger of death or serious bodily injury (Clean Air Act), conspiracy to defraud the United States by impairing cleanup investigations, three counts of knowing endangerment, and four counts of obstruction of justice.<ref name="aba-grace" />
 
On '''May 8, 2009''', after less than two days of deliberation following an 11-week trial, the jury acquitted W.R. Grace and three remaining executives on all counts. The acquittal was significantly influenced by the trial judge's instruction to view the prosecution's star witness, former Grace executive Robert Locke, with "great skepticism" after an undisclosed close relationship with prosecutors came to light. Two of the original five individual defendants had charges dismissed mid-trial after the judge limited admissible evidence.<ref name="aba-grace" />
 
Financially, W.R. Grace agreed in 2008 to pay '''$250 million''' to the federal government for environmental cleanup — the largest Superfund settlement at that time.<ref name="nyt-settlement" /> In January 2023, Grace proposed an additional $18.5 million settlement to resolve the state of Montana's remaining environmental damage claims.<ref name="mesonet-vermiculite" /> Grace filed for Chapter 11 bankruptcy in April 2001; its reorganization plan became final on '''February 3, 2014''', establishing both the WRG Asbestos Personal Injury Trust and the ZAI (Zonolite Attic Insulation) Trust.<ref name="zai-trust-faqs" /><ref name="zai-trust-general" />
 
== EPA Cleanup and Current Status ==
 
The Libby Asbestos Superfund Site is divided into eight operable units (OUs). EPA completed its Third Five-Year Review in 2025, determining that cleanup is effectively protecting human health at all completed OUs. However, '''OU3 — the former vermiculite mine — remains in the feasibility study phase''', meaning cleanup technologies are still under review.<ref name="epa-july2025" />
 
{| class="wikitable" style="width:100%; margin:1em 0;"
! style="background:#1a5276; color:white;" | Operable Unit
! style="background:#1a5276; color:white;" | Description
! style="background:#1a5276; color:white;" | Status
|-
| OU1 || Former Export Plant || Partially Deleted
|-
| OU2 || Former Screening Plant || Partially Deleted (April 2019)
|-
| OU3 || Former Vermiculite Mine || '''Feasibility Study — Ongoing'''
|-
| OU4 || Libby (residential/commercial) || Remediated (June 2020)
|-
| OU5 || Former Stimson Lumber Mill || Partially Deleted (2024)
|-
| OU6 || Railroad corridors || Partially Deleted (August 2022)
|-
| OU7 || Troy || Remediated (June 2020)
|-
| OU8 || State Highway Corridors || Partially Deleted (September 2021)
|}
 
EPA inspected more than '''7,600 schools, homes, and businesses''' in the area, cleaned up more than '''2,600 buildings''', and has spent over '''$600 million''' in total cleanup costs.<ref name="mesonet-vermiculite" /> The Libby Asbestos Superfund Oversight Committee (LASOC) raised concerns about the Five-Year Review's protectiveness findings and requested re-examination, arguing that unresolved questions about remedial action objectives and risk assessment parameters remain.<ref name="deq-lasoc" />
 
Emerging risks continue to arise. In December 2025, historic flooding in the Libby area raised concerns about asbestos-contaminated mine waste being mobilized by floodwaters. Officials noted that "washed out roadways, bridges and riverbanks are at highest risk for exposing pockets of mine waste or vermiculite." Wildfire also remains an ongoing threat, with agencies maintaining the Libby Asbestos Response Plan for the possibility of fires releasing asbestos-laden ash from contaminated soil, forest floor duff, and tree bark.<ref name="epa-july2025" />
 
The EPA declared its Public Health Emergency at Libby on June 17, 2009 — recognizing "hundreds of asbestos-related disease cases" in the community. This remains the only Public Health Emergency ever declared under CERCLA in the statute's history.<ref name="epa-emergency" /><ref name="nyt-emergency" />
 
== Compensation for Victims ==
 
Individuals diagnosed with mesothelioma, asbestosis, or other asbestos-related diseases from Libby vermiculite exposure have several compensation pathways. For legal guidance specific to your situation, contact [https://dandell.com/mesothelioma/ Danziger & De Llano], whose attorneys have extensive experience with Libby and W.R. Grace claims.<ref name="dandell-libby" />
 
=== WRG Asbestos Personal Injury Trust ===
 
Established under Grace's 2014 bankruptcy reorganization plan, the WRG Asbestos PI Trust processes personal injury claims from asbestos exposure related to Grace products. The trust currently pays at 30.1% of scheduled values, delivering approximately $57,190 for mesothelioma claims — making it one of the highest-paying individual trust funds available.<ref name="dandell-trust-guide" /> For a full breakdown of trust fund options, see [[WR_Grace_Trust|W.R. Grace Trust Fund]] and [[Asbestos_Trust_Funds|asbestos trust funds]].<ref name="mesotheliomalawyercenter-trusts" />
 
=== Zonolite Attic Insulation (ZAI) Trust ===
 
The ZAI Trust is separate from the personal injury trust and specifically addresses property damage claims from homeowners with Zonolite brand vermiculite insulation. Key details:<ref name="zai-trust-general" /><ref name="zai-trust-faqs" />
 
* '''Reimbursement:''' Up to 55% of eligible abatement costs, maximum approximately '''$5,250''' (adjusted for CPI)
* '''Eligibility:''' Claimants must prove the vermiculite is the Zonolite brand and provide documented removal or containment expenses
* '''Duration:''' The Trust operates for a minimum of 20 years from 2014
* '''Scope:''' Both residential and commercial buildings are eligible
* '''Critical warning:''' DIY removal should never be attempted — professional abatement is required
 
Homeowners who suspect they have Zonolite insulation should contact [https://www.mesotheliomalawyercenter.org/mesothelioma/asbestos-exposure/zonolite/ Mesothelioma Lawyer Center] for guidance on the ZAI Trust claim process.<ref name="mesotheliomalawyercenter-trusts" />
 
=== Other Legal Options ===
 
Victims may pursue compensation through multiple channels simultaneously. Filing a trust fund claim does not prevent lawsuits against other solvent asbestos defendants. Veterans who developed asbestos-related disease may also qualify for [[Veterans_Benefits|VA benefits]] separate from civil compensation. See [[Trust_Fund_Filing_Guidance|trust fund filing guidance]] for step-by-step instructions, and consult [https://mesotheliomaattorney.com/mesothelioma/ MesotheliomaAttorney.com] for information on multi-source compensation strategies.<ref name="mesotheliomaattorney-trusts" />
 
The state of Montana's additional $18.5 million environmental settlement with W.R. Grace (proposed January 2023, $5 million payable immediately with the balance over 10 years) addresses state environmental damage claims rather than individual victim compensation.<ref name="mesonet-vermiculite" />
 
=== Preserving Evidence ===
 
If you or a family member was exposed to Libby vermiculite, Zonolite attic insulation, or any W.R. Grace product, it is critical to document exposure history now. See [[Evidence_Preservation|evidence preservation]] and [[Corporate_Asbestos_Coverup|corporate concealment]] for guidance on gathering records. The W.R. Grace Trust announced plans in January 2025 to destroy claim records over 10 years old, with destruction beginning April 15, 2025 — making timely action essential.<ref name="dandell-trust-guide" />
 
== Frequently Asked Questions ==
 
=== Is Zonolite insulation in my attic dangerous? ===
 
If you have vermiculite insulation in your attic that was installed before 1990, you should treat it as potentially hazardous. EPA's official guidance is to '''assume vermiculite insulation contains asbestos unless testing proves otherwise''', since approximately 70–80% of all vermiculite sold in the United States between the 1940s and 1984 came from the Libby, Montana mine. The insulation is safest when left completely undisturbed. Any renovation, wiring, roofing, or attic work that could disturb the material should be handled by a licensed asbestos abatement professional. Contact [https://dandell.com/mesothelioma/asbestos-exposure/vermiculite/ Danziger & De Llano] for guidance if you or a family member has been exposed.<ref name="epa-protect" /><ref name="dandell-zonolite" />
 
=== Who qualifies for the ZAI Trust reimbursement? ===
 
Homeowners and commercial property owners who had the '''Zonolite brand''' of vermiculite attic insulation removed or contained by a licensed contractor may be eligible for reimbursement. The trust pays up to 55% of eligible documented expenses, with a maximum of approximately $5,250 adjusted for inflation. You must provide product identification evidence confirming the Zonolite brand (not all vermiculite insulation is Zonolite) and documented contractor expenses. The trust does not cover DIY removal. For filing assistance, see [https://www.mesotheliomalawyercenter.org/mesothelioma/asbestos-exposure/zonolite/ Mesothelioma Lawyer Center's ZAI Trust guide].<ref name="zai-trust-general" /><ref name="zai-trust-faqs" />
 
=== What diseases are caused by Libby Amphibole exposure? ===
 
Libby Amphibole Asbestos causes the same spectrum of asbestos-related diseases as other amphibole asbestos types, but at exceptionally high rates. Documented conditions include mesothelioma (SMR of 15.1 in the Libby worker cohort), asbestosis (SMR of 165.8), pleural plaques and thickening, lung cancer, and an unusual cluster of autoimmune diseases (6.9% of screening participants vs. less than 1% nationally). Disease has been documented not only in mine workers but in family members with secondary exposure, community residents with no known occupational contact, and even individuals who merely lived in Libby during the mine's operation. CARD provides free screening for anyone who lived, worked, or recreated in Lincoln County, Montana, for at least six months at least ten years ago.<ref name="pmc-casefatality" /><ref name="card-screening" />
 
=== Was W.R. Grace ever criminally convicted for Libby? ===
 
No. The federal criminal trial — United States v. W.R. Grace et al. — concluded on May 8, 2009, with the jury acquitting W.R. Grace and all remaining defendants on all charges after less than two days of deliberation following an 11-week trial. The acquittal does not affect the company's civil liability or its obligation to fund the asbestos compensation trusts established under its 2014 bankruptcy reorganization plan. W.R. Grace paid $250 million in Superfund cleanup costs and established trust funds with hundreds of millions of dollars for victims.<ref name="aba-grace" /><ref name="dandell-libby" />
 
=== How do I file a personal injury claim related to Libby vermiculite? ===
 
Personal injury claims for mesothelioma or other asbestos-related diseases linked to W.R. Grace products are handled by the WRG Asbestos Personal Injury Trust. Claims require a confirmed diagnosis, medical records, and documentation of exposure to Grace products (including Zonolite insulation, Monokote fireproofing, or other W.R. Grace asbestos-containing materials). An experienced mesothelioma attorney can file trust claims concurrently with lawsuits against other solvent defendants to maximize total compensation. Contact [https://dandell.com/contact-us/ Danziger & De Llano] or [https://mesotheliomaattorney.com/ MesotheliomaAttorney.com] for a free case evaluation. See also [[Trust_Fund_Filing_Guidance|Trust Fund Filing Guidance]] for a step-by-step overview of the claims process.<ref name="dandell-trust-guide" /><ref name="mesotheliomaattorney-trusts" />
 
== Key Facts Box: Libby, Montana Asbestos Disaster ==
 
{| class="wikitable" style="width:100%; border-collapse:collapse; margin:1em 0;"
|-
! style="background:#1a5276; color:white; padding:12px; text-align:left;" colspan="2" | Critical Statistics — Libby, Montana Asbestos Disaster
|-
| style="padding:10px; width:50%;" | '''Mine operation period'''
| style="padding:10px;" | Early 1920s – 1990
|-
| style="padding:10px;" | '''W.R. Grace ownership'''
| style="padding:10px;" | 1963–1990 (acquired Zonolite Company)
|-
| style="padding:10px;" | '''Peak vermiculite production'''
| style="padding:10px;" | ~80% of world supply
|-
| style="padding:10px;" | '''Documented asbestos deaths (1979–2011)'''
| style="padding:10px;" | '''694''' (Naik et al. 2016, death certificate analysis)
|-
| style="padding:10px;" | '''CARD disease certifications'''
| style="padding:10px;" | 3,400+ people with asbestos-related diseases
|-
| style="padding:10px;" | '''Pleural abnormalities in community screening'''
| style="padding:10px;" | 17.8% of 6,668 participants (ATSDR, 2000–2001)
|-
| style="padding:10px;" | '''Disease in residents with no known exposure'''
| style="padding:10px;" | 6.7% had radiographic asbestos disease
|-
| style="padding:10px;" | '''Asbestosis SMR (mine workers)'''
| style="padding:10px;" | 165.8 (103.9–251.1 CI)
|-
| style="padding:10px;" | '''EPA Public Health Emergency'''
| style="padding:10px;" | June 17, 2009 — first and only under CERCLA
|-
| style="padding:10px;" | '''EPA cleanup expenditure'''
| style="padding:10px;" | $600M+ (7,600+ properties inspected)
|-
| style="padding:10px;" | '''W.R. Grace Superfund settlement'''
| style="padding:10px;" | $250 million (2008, largest at that time)
|-
| style="padding:10px;" | '''Homes with Zonolite insulation (est.)'''
| style="padding:10px;" | ~35 million in U.S., Canada, and internationally
|-
| style="padding:10px;" | '''ZAI Trust reimbursement max'''
| style="padding:10px;" | ~$5,250 (55% of eligible costs)
|-
| style="padding:10px;" | '''Processing plants (national)'''
| style="padding:10px;" | 240–300 sites received Libby vermiculite
|-
| style="padding:10px;" | '''WRG PI Trust mesothelioma payout'''
| style="padding:10px;" | ~$57,190 (30.1% of $190,000 scheduled value)
|}
 
== Get Help ==
 
<span data-nosnippet class="noai-content">
{{CTA Box|}}
</span>
 
If you or a loved one was exposed to Libby vermiculite, Zonolite attic insulation, Monokote fireproofing, or any other W.R. Grace asbestos product and has been diagnosed with mesothelioma or another asbestos-related disease, contact an experienced attorney immediately:
 
* [https://dandell.com/mesothelioma/libby-montana-asbestos/ Danziger & De Llano — Libby Montana Asbestos Claims] — (866) 222-9990
* [https://www.mesotheliomalawyercenter.org/mesothelioma/asbestos-exposure/vermiculite/ Mesothelioma Lawyer Center — Vermiculite Exposure Guide]
* [https://mesothelioma.net/asbestos/vermiculite/ Mesothelioma.net — Zonolite & Vermiculite Resources]
* [https://mesotheliomaattorney.com/mesothelioma/ MesotheliomaAttorney.com — Free Case Evaluation]
 
{{Statute Warning}}
 
== Related Pages ==
 
* [[WR_Grace_Trust|W.R. Grace Trust Fund]]
* [[Asbestos_Trust_Funds|Asbestos Trust Funds]]
* [[Trust_Fund_Filing_Guidance|Trust Fund Filing Guidance]]
* [[Corporate_Asbestos_Coverup|Corporate Asbestos Concealment]]
* [[Occupational_Exposure_Index|Occupational Asbestos Exposure]]
* [[Evidence_Preservation|Evidence Preservation]]
 
== References ==
<references>
<ref name="naik2016">[https://pmc.ncbi.nlm.nih.gov/articles/PMC5318660/ Mortality from asbestos-associated disease in Libby, Montana 1979–2011], Naik et al. (2016), Journal of Exposure Science and Environmental Epidemiology. Documents 694 asbestos-related deaths among Libby County Division residents.</ref>
<ref name="atsdr2003">[https://www.atsdr.cdc.gov/hac/pha/LibbyAsbestosSite/MT_LibbyPHAMay-15-2003_508.pdf Public Health Assessment: Libby Asbestos NPL Site], ATSDR (May 2003). Documents mine production history and public health findings.</ref>
<ref name="atsdr2024">[https://www.atsdr.cdc.gov/media/pdfs/2024/07/Summary_Report_102908.pdf Exposure to Asbestos-Containing Vermiculite from Libby, Montana — Summary Report], ATSDR (2024). Summarizes mortality review findings and standardized mortality ratios.</ref>
<ref name="epa-vermiculite">[https://www.epa.gov/sites/default/files/2015-12/documents/montana.pdf EPA's Actions Concerning Asbestos-Contaminated Vermiculite in Montana], U.S. EPA. Documents W.R. Grace operations and EPA cleanup history.</ref>
<ref name="epa-emergency">[https://www.epa.gov/archive/epapages/newsroom_archive/newsreleases/0d16234d252c98f9852575d8005e63ac.html EPA Announces Public Health Emergency in Libby, Montana], U.S. EPA (June 17, 2009). First-ever Public Health Emergency declaration under CERCLA.</ref>
<ref name="epa-july2025">[https://content.govdelivery.com/accounts/USEPAREG8/bulletins/3e5630e Libby Asbestos July 2025 Update], U.S. EPA Region 8, GovDelivery. Third Five-Year Review completion and ongoing OU3 status.</ref>
<ref name="epa-protect">[https://www.epa.gov/asbestos/protect-your-family-asbestos-contaminated-vermiculite-insulation Protect Your Family from Asbestos-Contaminated Vermiculite Insulation], U.S. EPA. Official guidance on Zonolite identification and safety.</ref>
<ref name="pmc-followup">[https://pmc.ncbi.nlm.nih.gov/articles/PMC8157313/ Follow-Up of the Libby, Montana Screening Cohort], PMC (2021). Peer-reviewed analysis of ATSDR screening program results including 17.8% pleural abnormality rate.</ref>
<ref name="pmc-vermiculite">[https://pmc.ncbi.nlm.nih.gov/articles/PMC1852671/ Vermiculite, Respiratory Disease, and Asbestos Exposure in Libby, Montana], PMC (Sullivan 2007). Peer-reviewed NIOSH cohort mortality study of 1,672 Libby workers.</ref>
<ref name="pmc-casefatality">[https://pmc.ncbi.nlm.nih.gov/articles/PMC9303583/ Case-fatality study of workers and residents with radiographic asbestos disease in Libby, Montana], PMC (2022). Documents asbestos-related mortality among both occupational and non-occupational Libby residents.</ref>
<ref name="sullivan2007">[https://pubmed.ncbi.nlm.nih.gov/17450227/ Vermiculite, respiratory disease, and asbestos exposure in Libby, Montana], Sullivan (2007), Environmental Health Perspectives. Occupational cohort SMR data for Libby workers.</ref>
<ref name="meeker2003">Meeker GP et al. (2003), American Mineralogist. Identifies Libby amphibole composition as winchite (84%), richterite (11%), tremolite (6%).</ref>
<ref name="grace-indictment">[https://static.ewg.org/reports/2005/into_thin_air/WRGrace_Indictment.pdf U.S. v. W.R. Grace et al. — Federal Indictment], EWG document repository. Documents 1939 Zonolite Company formation and 1963 acquisition by W.R. Grace.</ref>
<ref name="aba-grace">[https://www.abajournal.com/news/article/jury_acquits_w.r._grace_and_execs_in_landmark_criminal_asbestos_case Jury Acquits W.R. Grace and Former Execs in Landmark Criminal Asbestos Case], ABA Journal (May 8, 2009). Documents acquittal on all counts after 11-week trial.</ref>
<ref name="nyt-settlement">[$250 Million Settlement Over Asbestos Is Announced, New York Times (March 12, 2008)]. W.R. Grace agrees to pay $250 million to federal government for Libby environmental cleanup — the largest Superfund settlement at that time. URL: https://www.nytimes.com/2008/03/12/us/12grace.html</ref>
<ref name="nyt-emergency">[https://www.nytimes.com/2009/06/18/science/earth/18libby.html U.S. Cites Emergency in Asbestos-Poisoned Town], New York Times (June 18, 2009). Reports on EPA's first-ever CERCLA Public Health Emergency declaration at Libby.</ref>
<ref name="card-screening">[https://libbyasbestos.org/get-screened/asbestos-health-screening/ Asbestos Health Screening], Center for Asbestos Related Disease (CARD), Libby, MT. Free screening eligibility, process, and 3,400+ certification data.</ref>
<ref name="govinfo-congress">[https://www.govinfo.gov/content/pkg/CHRG-107shrg83698/html/CHRG-107shrg83698.htm Asbestos Cleanup in Libby, MT — Congressional Hearing], U.S. Government Publishing Office. EPA testimony on 240 identified processing plant locations.</ref>
<ref name="card-nationwide">[https://libbyasbestos.org/provider-education/libby-amphibole-asbestos-not-just-a-libby-risk/ Libby Amphibole Asbestos — Not Just a Libby Risk], CARD, Libby, MT. Documents nationwide distribution to nearly 300 processing plants.</ref>
<ref name="mn-health">[https://www.health.state.mn.us/communities/environment/hazardous/sites/western.html Western Mineral Products Vermiculite Processing Operations in Minneapolis], Minnesota Department of Health. Documents 1938–1989 operations and indoor air residual findings after remediation.</ref>
<ref name="zai-trust-general">[https://www.zaitrust.com/s/general-information About the Trust — Zonolite Attic Insulation Trust], ZAI Trust. Official trust general information including reimbursement rates and eligibility.</ref>
<ref name="zai-trust-faqs">[https://www.zaitrust.com/s/faqs ZAI Trust FAQs — Vermiculite Insulation Removal Reimbursement], ZAI Trust. Detailed FAQ on ZAI Trust claims, eligibility, and payment process.</ref>
<ref name="deq-lasoc">[https://deq.mt.gov/Files/Land/FedSuperFund/Documents/Libby/August%202025/LASOC%20letter%20to%20EPA%20Aug%202025DraftFinal.pdf Libby Asbestos Superfund Site Five Year Review and Delisting — LASOC Letter to EPA], Montana DEQ (August 2025). Community oversight committee concerns about protectiveness findings.</ref>
<ref name="dandell-libby">[https://dandell.com/mesothelioma/libby-montana/ Libby Montana Asbestos Exposure], Danziger & De Llano. Comprehensive guide to Libby exposure, W.R. Grace history, and legal options for victims.</ref>
<ref name="dandell-zonolite">[https://dandell.com/mesothelioma/asbestos-exposure/vermiculite/ Vermiculite Asbestos Exposure and Zonolite Insulation], Danziger & De Llano. Homeowner guidance on Zonolite identification, ZAI Trust, and legal rights.</ref>
<ref name="dandell-trust-guide">[https://dandell.com/asbestos-trust-funds/wr-grace-asbestos-trust-payments-lawsuits/ W.R. Grace Asbestos Trust Payments & Lawsuits], Danziger & De Llano. Trust payment rates, scheduled values, and multi-trust compensation strategies.</ref>
<ref name="dandell-compensation">[https://dandell.com/mesothelioma-compensation/ Mesothelioma Compensation Guide], Danziger & De Llano. Overview of all compensation sources for asbestos victims including trusts, lawsuits, and VA benefits.</ref>
<ref name="dandell-corporate">[https://dandell.com/mesothelioma/asbestos-companies/wr-grace/ W.R. Grace Asbestos Company Profile], Danziger & De Llano. Corporate history, Libby mine operations, and concealment timeline.</ref>
<ref name="mesotheliomalawyercenter-grace">[https://www.mesotheliomalawyercenter.org/mesothelioma/asbestos-exposure/vermiculite/ Vermiculite Asbestos Exposure and W.R. Grace], Mesothelioma Lawyer Center. Corporate conduct documentation including Monokote concealment and Libby exposure history.</ref>
<ref name="mesotheliomalawyercenter-trusts">[https://www.mesotheliomalawyercenter.org/mesothelioma/asbestos-trust-funds/wr-grace/ W.R. Grace Asbestos Trust Fund], Mesothelioma Lawyer Center. ZAI Trust claim process and personal injury trust filing guidance.</ref>
<ref name="mesotheliomalawyercenter-zonolite">[https://www.mesotheliomalawyercenter.org/mesothelioma/asbestos-exposure/zonolite/ Zonolite Attic Insulation Asbestos Exposure], Mesothelioma Lawyer Center. Homeowner identification guide and ZAI Trust reimbursement details.</ref>
<ref name="mesonet-vermiculite">[https://mesothelioma.net/asbestos/vermiculite/ Vermiculite Asbestos and Zonolite Insulation], Mesothelioma.net. Overview of Libby disaster, W.R. Grace settlement history, and victim compensation options.</ref>
<ref name="mesonet-libby">[https://mesothelioma.net/libby-montana/ Libby, Montana Asbestos Exposure], Mesothelioma.net. Community exposure history, CARD clinic, and legal options for affected residents.</ref>
<ref name="mesotheliomaattorney-trusts">[https://mesotheliomaattorney.com/mesothelioma/trust-funds/ Mesothelioma Trust Funds], MesotheliomaAttorney.com. Multi-trust claim strategies and compensation maximization guidance.</ref>
<ref name="mesotheliomaattorney-grace">[https://mesotheliomaattorney.com/asbestos-companies/wr-grace/ W.R. Grace Asbestos Exposure and Claims], MesotheliomaAttorney.com. Company profile and trust claim filing information.</ref>
</references>
 
[[Category:Asbestos Exposure Sites]]
[[Category:Environmental Disasters]]
[[Category:Asbestos Products]]
[[Category:W.R. Grace]]
[[Category:Superfund Sites]]
[[Category:Montana]]
[[Category:Legal Rights]]
[[Category:Homeowner Resources]]
[[Category:Corporate Misconduct]]
 
== External Links ==
* [https://www.intermountainhistories.org/items/show/382 www.intermountainhistories.org]

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