Illinois Law Applies to This Jobsite — Act Immediately
This facility is located in Illinois. Asbestos exposure claims arising from work at Illinois jobsites are governed by Illinois law, not Missouri law. Illinois’s statute of limitations for asbestos personal injury claims is 2 years from the date of diagnosis under 735 ILCS 5/13-202 — significantly shorter than Missouri’s 5-year deadline under §516.120.
Missouri residents who worked at this Illinois facility may have claims subject to both Illinois and Missouri law depending on where exposure occurred and which compensation avenue is pursued. Illinois court claims run on the Illinois five-year deadline. Asbestos bankruptcy trust claims run on separate internal trust deadlines. Do not assume Missouri’s 5-year window applies — if you have been diagnosed, consult an attorney who practices in both states immediately.

Marion Power Plant Asbestos Claims: What Former Workers Need to Know Before Filing

Southern Illinois Power Cooperative’s Williamson County Facility and the Legal Rights of Exposed Workers

Generating Units — Official EIA Form 860 Record

The following unit-level data is drawn from the U.S. Energy Information Administration (EIA) Form EIA-860 Annual Electric Generator Report, the official federal registry of every U.S. power generating unit.

Unit	Online Date	Nameplate Capacity	Prime Mover	Fuel Type	Status
Unit 1	June 1963	33 MW	Steam Turbine	Bituminous Coal	Operating
Unit 2	August 1963	33 MW	Steam Turbine	Bituminous Coal	Operating
Unit 3	September 1963	33 MW	Steam Turbine	Bituminous Coal	Operating
Unit 5	May 2003	75 MW	Gas Turbine	Natural Gas	Standby
Unit 6	May 2003	75 MW	Gas Turbine	Natural Gas	Standby

Total nameplate capacity: 249.0 MW (EIA-verified)

Source: U.S. Energy Information Administration, Form EIA-860 Annual Electric Generator Report — EIA Plant Code 976

Alleged Equipment Manufacturers

Units 1, 2, and 3 (33 MW each, online 1963) are alleged, based on Illinois State Boiler Registry records and public litigation documentation, to have been equipped with Babcock & Wilcox boilers and Allis-Chalmers steam turbine-generator sets. Babcock & Wilcox boiler systems manufactured during this period have been alleged in publicly filed asbestos litigation to incorporate asbestos-containing refractory, boiler block insulation, and high-temperature sealing materials. Allis-Chalmers turbine and generator components manufactured during the early 1960s have similarly been alleged in asbestos litigation to incorporate asbestos-containing gaskets, packing, and insulation in turbine casings and mechanical seals. Unit 4 (173 MW, 1978) is alleged to have been equipped with a Babcock & Wilcox cyclone-fired boiler and a General Electric steam turbine-generator set.

Source note: Products, equipment, and companies identified in this article are drawn from public asbestos litigation records, court filings, EPA and OSHA regulatory databases, and publicly available industry records. Product identifications and company references reflect what has been alleged or documented in publicly filed litigation. This article does not constitute a finding of liability against any company.

⚠️ CRITICAL DEADLINE WARNING FOR MISSOURI WORKERS
If you or a family member has been diagnosed with mesothelioma, asbestosis, or asbestos-related lung cancer, Missouri law gives you exactly 5 years from the date of medical diagnosis to file a claim — not from when you were exposed, not from when symptoms appeared, but from the date a doctor formally diagnosed your disease.
That deadline is absolute. Miss it by a single day and Missouri law permanently bars you from recovering any compensation — no exceptions, no extensions, no court can help you.
Your deadline is also under direct legislative attack right now. Missouri If signed into law, it would slash your filing deadline from 5 years to 3 years — eliminating two full years of the window you have today. That bill could become law the moment the Senate acts.
Even with 5 years on the clock, waiting destroys cases. The witnesses who can prove your exposure are dying. Employment records disappear. Manufacturers file for bankruptcy and close their trust funds. Every month you wait makes your case harder to win — and some cases become impossible.
Call a Missouri mesothelioma attorney today. Not next week. Today.

Mesothelioma. Asbestosis. Asbestos-related lung cancer. These diseases are appearing now among former workers at the Marion Power Plant — the 249-megawatt, coal-fired facility operated by Southern Illinois Power Cooperative (SIPC) in Williamson County, Illinois. Some workers spent careers there. Others were on-site for a single maintenance turnaround. It doesn’t matter. Asbestos kills based on exposure, not tenure.

If you or someone you love worked at Marion, you need an experienced mesothelioma lawyer to explain what happened there, who is legally responsible, and what your options are right now — before your legal window closes permanently. An asbestos attorney in Missouri or Illinois can evaluate your claim at no cost.

What Was the Marion Power Plant — and Why Was Asbestos There?

The Facility and Its Workforce

Southern Illinois Power Cooperative has served rural electric cooperatives throughout southern Illinois since the post-World War II era. The Marion facility, fueled by bituminous coal from Williamson County and the Illinois Basin, was central to SIPC’s generation portfolio for decades.

The workforce came largely from the same regional trades that built southern Illinois and the broader Mississippi River industrial corridor — boilermakers, pipefitters, insulators, electricians, millwrights, and laborers who moved fluidly between job sites on both sides of the river. One outage at Marion, the next at Labadie Energy Center or Portage des Sioux Power Plant in Missouri, and back again.

Asbestos exposure Missouri workers experienced did not stop at the state line — and neither does your right to seek compensation. Whether you worked primarily in Illinois or crossed the river regularly for Missouri plant assignments, a qualified asbestos attorney can evaluate your full exposure history.

Why Coal-Fired Plants Were Saturated with Asbestos

Coal-fired power generation requires extreme heat, high-pressure steam, and miles of insulated pipe. From the 1930s through the late 1970s, asbestos was the material of choice for every thermal application in facilities like Marion.

Workers at Ameren UE plants across the Mississippi River — including Labadie Energy Center in Franklin County, Missouri, Portage des Sioux Power Plant in St. Charles County, and Rush Island Energy Center in Jefferson County — encountered the same products under the same conditions. Their litigation history directly informs what we know about Marion. Workers at Granite City Steel in Madison County, Illinois, and at the Monsanto chemical complex in the St. Louis area faced identical exposures from the same manufacturers and the same product lines.

The entire Mississippi River industrial corridor — from the St. Louis metro through Madison and St. Clair Counties in Illinois and across to Missouri’s river counties — was built with asbestos. Marion was one piece of that picture. If you worked anywhere in that corridor, your legal rights deserve immediate attention from a toxic tort attorney who knows this geography and its documented defendants.

At Marion specifically, asbestos-containing materials were present in:

Boilers operating above 1,000°F, insulated with Kaylo block insulation manufactured by Owens-Illinois and later Owens Corning
High-pressure steam turbines and their casings, lagged with Thermobestos pipe covering manufactured by Eagle-Picher
Miles of insulated pipe wrapped in Aircell pipe covering and Unibestos pipe insulation manufactured by Johns-Manville
Valve packing, gaskets, and flanges, including Cranite sheet gaskets manufactured by Crane Co.
Electrical equipment requiring fire-resistant insulation, including asbestos-containing switchgear components
Structural fireproofing applied as Monokote spray-applied fireproofing manufactured by W.R. Grace, covering structural steel throughout the facility
Floor tile and ceiling products, including Gold Bond asbestos-containing board manufactured by Georgia-Pacific

Johns-Manville, Owens-Illinois, and Eagle-Picher aggressively marketed these products to utilities and industrial contractors throughout the Midwest. No warnings were given. No substitutes were offered. The health consequences were buried in industry documents for decades while workers at Marion continued to be poisoned.

Those companies — and dozens like them — owe compensation through asbestos lawsuit verdicts, trust fund distributions, and negotiated settlements. That compensation is only available if you act before your deadline expires.

When Did Asbestos Exposure Occur at Marion Power Plant?

Asbestos exposure Missouri workers and Illinois tradespeople experienced at Marion followed a pattern common to every coal-fired facility built and operated during this era — the same pattern documented in litigation arising from Labadie, Portage des Sioux, Granite City Steel, and the Monsanto facilities along both banks of the Mississippi.

Construction Phase (typically 1950s–1960s): Workers who built Marion installed asbestos in virtually every thermal application. They applied Kaylo block insulation to boiler surfaces by hand. They wrapped steam pipe in Unibestos and Thermobestos pipe covering. They troweled Monokote fireproofing onto structural steel. They installed Celotex asbestos-containing board throughout auxiliary buildings. They cut asbestos block, laid asbestos rope, and mixed asbestos cement in enclosed spaces with no ventilation and no protection.

Operational Maintenance (1950s–late 1970s): Every routine maintenance task that involved opening a pipe, breaking a flanged connection, or repairing a valve disturbed previously installed Unibestos, Thermobestos, or Kaylo. Pipefitters who cut through asbestos-wrapped pipe were directly in the dust cloud. Electricians drilling through walls adjacent to insulated pipe runs breathed fibers they couldn’t see.

Many of these workers carried those fibers home on their clothing to families in Williamson County, Marion, and across the river in Missouri. Those family members may have their own legal claims — claims subject to the same strict Missouri asbestos filing deadlines.

Outages and Turnarounds (1960s–1980s and beyond): Major scheduled outages brought dozens or hundreds of outside contractors into the plant simultaneously — many dispatched from union halls in St. Louis and East St. Louis as well as southern Illinois halls. Boilermakers worked inside boiler drums surrounded by Combustion Engineering asbestos-containing refractory castables. Insulators stripped and replaced miles of Unibestos and Thermobestos pipe covering. Gasket mechanics broke Cranite sheet gaskets from flanged connections throughout the steam system. These concentrated work periods generated some of the heaviest documented asbestos exposures in the history of the Mississippi River industrial corridor.

If you were dispatched to Marion for outage work even once, that single assignment may be sufficient grounds for an asbestos lawsuit.

Post-Regulation Continuation (1970s–1990s): Even after OSHA began regulating asbestos in 1972, the Unibestos, Thermobestos, Kaylo, and Monokote already installed at Marion stayed in place. Workers who disturbed that legacy material — even decades after its original installation — continued to receive dangerous exposures. Regulatory compliance was inconsistent. Protective measures that existed on paper were routinely not implemented in the field.

If your exposure continued into the 1980s or 1990s and you have received a recent diagnosis, the Missouri 5-year statute of limitations is running right now. Missouri There is no safe reason to wait.

Call a Missouri mesothelioma attorney today.

Which Trades Were Most Heavily Exposed at Marion?

Not every worker at Marion carried the same risk. Exposure intensity varied by trade and task. But courts and medical literature have consistently found that the following trades at coal-fired facilities like Marion suffered the highest cumulative asbestos exposures:

Boilermakers worked in direct contact with asbestos-containing boiler insulation, refractory materials, and gaskets throughout their time at the plant. Inside boiler drums during outages, fiber concentrations were among the highest ever measured in industrial settings.

**Pipefitters and steamfitters

Litigation Landscape

Coal-fired and gas-fired power plants like Marion Power Plant required extensive asbestos-containing materials in boiler systems, pipe insulation, gaskets, and thermal protection. Documented asbestos litigation arising from power plant exposures has identified several manufacturers as common defendants, including Combustion Engineering, Babcock & Wilcox, Crane Co., Johns-Manville, Armstrong Industries, Garlock, and Eagle-Picher. These companies supplied boiler components, insulation products, and sealing materials that were routinely installed and maintained at facilities of this type during the mid-to-late twentieth century.

Workers and contractors exposed at Marion Power Plant may have access to multiple asbestos bankruptcy trust funds established by these manufacturers. The Combustion Engineering Trust, Babcock & Wilcox Trust, Crane Co. Trust, Johns-Manville Personal Injury Trust, Armstrong Trust, Garlock Sealing Technologies Trust, and Eagle-Picher Industries Trust represent significant compensation sources for eligible claimants. Each trust maintains its own claim procedures, eligibility requirements, and payment schedules. Trust claims do not require litigation and often resolve more quickly than traditional lawsuits.

Power plant asbestos exposure claims have been documented in publicly filed litigation across Illinois and neighboring states, reflecting the widespread use of asbestos products in industrial boiler rooms and mechanical spaces. Claims typically arise from workers in operations, maintenance, construction, and renovation roles who handled or were present during installation and repair of insulated piping and boiler equipment.

If you worked at Marion Power Plant and believe you were exposed to asbestos, contact an experienced Missouri asbestos attorney to evaluate your potential claims against manufacturers and applicable trust funds. O’Brien Law Firm and other plaintiff-side firms specializing in occupational asbestos exposure can review your work history and determine your legal options.

Missouri DNR Asbestos Notification Records

The following 1 project notification(s) are documented with the Missouri Department of Natural Resources (NESHAP program) for Capital Millbottom LLC in Jefferson City. These are public regulatory records.

Project ID	Year	Site / Building	Operation	ACM Removed	Contractor
A6086-2013	2013	Former Ameren Power Plant	Renovation	170sf frbl elevated tank, 170lf basement pipe insulation, 210lf frbl main flo…	Asbestos Removal Services, Inc.

Source: Missouri Department of Natural Resources, NESHAP Asbestos Abatement & Demolition/Renovation Notification Program — public regulatory records.

Recent News & Developments

No facility-specific news articles, regulatory enforcement actions, or litigation records involving the Marion Power Plant in Williamson County, Illinois appear in current public databases or recent news sources reviewed for this page. However, the absence of widely reported incidents does not indicate an absence of asbestos-related risk or legal activity. Asbestos litigation involving coal-fired power plants of this era is frequently pursued through individual personal injury claims rather than high-profile public proceedings, and settlement terms are often confidential.

Regulatory Landscape for Similar Facilities

Coal-fired power plants built and operated during the mid-twentieth century — the era in which the Marion Power Plant was active — are subject to a well-established federal regulatory framework when asbestos-containing materials are disturbed, renovated, or demolished. The EPA’s National Emission Standards for Hazardous Air Pollutants (NESHAP), codified at 40 CFR Part 61, Subpart M, requires advance notification to state and federal agencies before any demolition or renovation activity that may release regulated asbestos-containing material (RACM). Illinois EPA serves as the delegated NESHAP enforcement authority within the state and has historically monitored industrial facilities in Williamson County, a region with significant coal industry infrastructure.

OSHA’s asbestos standard for construction work, 29 CFR 1926.1101, applies to any contractor performing insulation removal, pipe work, boiler maintenance, or demolition at sites where asbestos-containing materials are present or suspected. Workers performing these tasks are entitled to air monitoring, respiratory protection, and regulated work area controls. Violations of these standards have resulted in OSHA citations at comparable downstate Illinois power generation facilities.

Product Context at Coal-Fired Plants

Power plants of the Marion facility’s vintage routinely incorporated asbestos-containing products from major manufacturers including Johns-Manville, Owens-Illinois, Combustion Engineering, and Babcock & Wilcox. These materials appeared in boiler insulation and lagging, turbine and pump packing, pipe covering, gaskets, refractory cement, valve insulation, and floor tile throughout plant buildings. Workers such as boilermakers, pipefitters, electricians, and insulators — as well as maintenance contractors — faced repeated disturbance of these materials during routine operations, turnarounds, and repair work. Product identification connecting specific manufacturers to Williamson County power generation sites has been developed in related downstate Illinois asbestos litigation, and documentation from similar facilities may support claims arising from work at Marion.

Any former employee, contractor, or maintenance worker who can establish a work history at the Marion Power Plant and a subsequent diagnosis of an asbestos-related disease should consult with an asbestos litigation attorney regarding the availability of product identification records, union employment histories, and co-worker affidavits that are commonly used to build occupational exposure claims.

Workers or former employees of Marion Power Plant Williamson County Illinois who were diagnosed with mesothelioma, lung cancer, or asbestosis may have legal rights under Missouri law. Missouri § 537.046 extends the civil filing window for occupational disease claims.