Mesothelioma Lawyer Missouri: Honeywell Metropolis Uranium Facility Asbestos Exposure and Legal Compensation

If you worked at Honeywell’s uranium hexafluoride facility in Metropolis, Illinois and have since been diagnosed with mesothelioma, asbestosis, or lung cancer, you may have been exposed to asbestos-containing materials and may have substantial legal claims for compensation. Asbestos-related disease claims are entirely separate from radiation compensation programs — and you may be eligible to pursue both simultaneously. This guide covers what happened at this facility, who may have been at risk, and how to protect your legal rights before time runs out.

Urgent Legal Warning: Missouri has a strict five-year statute of limitations for filing asbestos-related personal injury claims, running from the date of diagnosis — not the date of exposure. That deadline is real, and it has ended claims for workers who waited too long. Contact an experienced asbestos attorney Missouri immediately after diagnosis. Do not assume you have time.

What Is the Metropolis, Illinois Uranium Facility?

Facility Location and Operations

The Honeywell Metropolis Works sits on the western edge of Massac County along the Ohio River, approximately two miles southwest of Metropolis, Illinois. It is the only commercial uranium hexafluoride (UF₆) conversion facility in the United States. Since 1958, the plant has converted uranium ore concentrates into gaseous uranium hexafluoride — the form used to enrich uranium for commercial nuclear reactor fuel.

Ownership and Timeline

Corporate ownership has changed multiple times, with each successive owner reportedly inheriting aging infrastructure that may have contained asbestos-containing materials:

1958–1963: Allied Chemical Corporation constructed and began operations
1963–1985: Allied Chemical / Allied Corporation expanded production during the nuclear power boom
1985–1999: Allied-Signal Corporation operated the facility following a corporate merger
1999–Present: Honeywell International has operated the site following its merger with Allied-Signal

Honeywell International has been named as a successor-in-interest to Allied-Signal and Allied Chemical in numerous environmental and occupational liability cases nationally. Workers affected by asbestos exposure may have grounds for claims against multiple entities in this corporate succession chain — which matters for compensation purposes.

Why This Facility Created Serious Asbestos Exposure Risks

The Metropolis facility is a process-intensive heavy industrial plant. Its 1958 construction date, extreme operating conditions, and multiple major expansions reportedly required massive quantities of asbestos-containing thermal insulation, gaskets, packing materials, and fireproofing throughout its systems.

The Dual Hazard: Asbestos and Radiation

Workers at the Metropolis facility may have faced two distinct categories of occupational disease — and two separate paths to compensation.

Asbestos causes mesothelioma, asbestosis, lung cancer, and pleural disease through fiber inhalation. These conditions are compensable through civil litigation and asbestos bankruptcy trust funds, regardless of whether radiation exposure also occurred.

The Department of Energy’s Energy Employees Occupational Illness Compensation Program Act (EEOICPA) compensates workers at nuclear facilities for radiation-related cancers and illnesses.

Critical point: These are two completely separate compensation systems. A worker who receives EEOICPA radiation compensation can still pursue asbestos litigation claims. Both can be filed simultaneously. They do not cancel each other out. An asbestos attorney Missouri can help you pursue both without jeopardizing either.

When and Why Asbestos-Containing Materials Were Used at Metropolis

The Peak Asbestos Era: 1958–1975

The Metropolis facility was built in 1958 — at the height of American industrial asbestos use. Asbestos-containing materials were the standard insulation and fireproofing solution because they were inexpensive, widely available, and effective against heat, fire, chemical corrosion, and electrical damage. During construction and major expansion in the 1960s and early 1970s, asbestos-containing materials were reportedly incorporated into virtually every system requiring thermal control, fire protection, or chemical resistance.

Why UF₆ Processing Required Especially Intensive ACM Use

The chemistry of uranium hexafluoride processing created demand for asbestos-containing materials that exceeded most other industrial facilities:

High-Temperature Processes: Uranium ore concentrate was roasted at temperatures exceeding 1,000°F in rotary kilns. Fluorination reactions occurred at elevated temperatures. Kilns, reactors, process vessels, and associated piping reportedly required extensive asbestos-containing insulation to maintain safe operating conditions.

Highly Corrosive Chemical Environment: Fluorine gas and hydrofluoric acid — among the most corrosive substances in industrial chemistry — are central to UF₆ conversion. Pipe joints, valve stems, pump seals, and vessel flanges in these service conditions reportedly required asbestos-containing gaskets and packing materials resistant to both heat and chemical attack simultaneously.

Massive Steam Systems: Large steam generation and distribution systems served process heating throughout the facility. Steam pipes, valves, boilers, and associated equipment were reportedly heavily insulated with asbestos-containing materials consistent with 1950s through 1970s industry practice.

Electrical Infrastructure: High-voltage electrical systems, motors, switchgear, and wiring throughout the plant reportedly incorporated asbestos-containing electrical insulation products from manufacturers including General Electric, Westinghouse, and Square D.

Structural Fireproofing: Structural steel throughout the process buildings was reportedly coated with spray-applied asbestos-containing fireproofing — standard practice for industrial construction from the 1940s through the early 1970s.

The Maintenance Era: 1960s Through 1980s

After new asbestos-containing material installation declined in the mid-1970s, existing materials at Metropolis Works reportedly continued generating fiber exposure for decades through routine maintenance and repair. Pipe insulation cut or torn for valve replacement released fibers. Gaskets and packing were routinely removed and replaced as part of preventive maintenance, often generating the highest task-specific exposures workers encountered. Enforcement records for facilities of this type document that maintenance and repair activities — not initial installation — were frequently the source of the greatest cumulative asbestos exposures for long-term workers.

If you performed maintenance work at this facility, your potential exposure history deserves serious legal evaluation. Contact an asbestos cancer lawyer St. Louis today.

Who May Have Been Exposed at the Metropolis Facility

Asbestos fibers become airborne and migrate. Workers in adjacent trades and areas — not just those who directly handled asbestos-containing materials — may have been exposed.

Insulators / Asbestos Workers

Insulators worked most directly with asbestos-containing materials and may have been exposed during:

Installation of asbestos-containing pipe insulation on steam lines, process piping, and reactor vessels
Removal and replacement of deteriorated asbestos-containing pipe insulation
Fabrication and fitting of asbestos-containing block insulation for high-temperature equipment
Application of asbestos-containing cements and coatings to irregular surfaces
Boiler and heat exchanger insulation work

Pipefitters and Steamfitters

Pipefitters and steamfitters worked on steam systems, process piping, and utility systems throughout the facility. They may have been exposed through:

Cutting, threading, and fitting pipe sections covered with asbestos-containing insulation
Removing asbestos-containing pipe insulation to access valves and flanges
Replacing asbestos-containing gaskets on pipe flanges throughout the process systems
Replacing asbestos-containing valve packing in gate valves, globe valves, and control valves

Gasket and packing removal from products manufactured by Garlock Sealing Technologies, Armstrong World Industries, and comparable suppliers — requiring scraping, grinding, or wire-brushing to clear old material from mating surfaces — allegedly generated particularly concentrated, task-specific exposures.

Boilermakers

Boilermakers worked on boilers, pressure vessels, heat exchangers, and process vessels throughout the facility. They may have been exposed through:

Maintenance and repair of boilers reportedly heavily insulated with asbestos-containing materials from manufacturers including Johns-Manville and Thermofiber
Work inside and around heat exchangers reportedly containing asbestos-containing gaskets on covers and heads
Repair of process vessels and reactors using asbestos-containing insulation and refractory materials
Work in boiler rooms where asbestos-containing insulation surrounded active systems on all sides

Electricians

Electricians may have been exposed through:

Work on electrical panels, switchgear, and motor control centers reportedly containing asbestos-containing arc chutes, barrier panels, and insulating components from manufacturers including General Electric, Westinghouse, and Square D
Electrical work requiring penetration of fireproofed walls and ceilings, disturbing spray-applied asbestos-containing fireproofing reportedly manufactured by companies including Zonolite
Wiring work in areas with asbestos-containing pipe insulation overhead or adjacent

Millwrights and Maintenance Mechanics

Millwrights and maintenance mechanics may have been exposed through:

Work on pumps, compressors, and rotating equipment using asbestos-containing gaskets, seals, and packing from manufacturers including Garlock and Armstrong
Equipment removal and relocation requiring disturbance of asbestos-containing insulation
Maintenance in areas where asbestos-containing materials had deteriorated from age and thermal cycling — conditions that generate airborne fibers without any active disturbance

Carpenters and Ironworkers

Carpenters and ironworkers involved in facility structure work may have been exposed through:

Work on structural steel fireproofed with spray-applied asbestos-containing materials
Demolition and modification of structures containing asbestos-containing fireproofing products

Plant Operators, Supervisors, and General Laborers

Plant operators, maintenance supervisors, facility engineers, and general laborers who worked near asbestos-generating activities may also have been exposed. Asbestos fibers migrate through ventilation systems and open plant areas, reaching workers who never touched the materials directly. If you worked at this facility in any capacity and have been diagnosed with an asbestos-related illness, a qualified asbestos attorney Missouri can evaluate your claim.

Asbestos-Containing Products Reportedly Present at Metropolis

Based on the facility’s 1958 construction date, operational environment, and documented industry practice for comparable UF₆ and heavy chemical process facilities, workers may have encountered the following asbestos-containing products:

Pipe Insulation Products

Asbestos-containing rigid pipe covering and block insulation on process lines, steam lines, and utility piping
Asbestos-containing flexible pipe wrap and cloth tape used on valve stems and irregular surfaces
Asbestos-containing pipe insulation cements and mastics
Products from manufacturers including Owens-Illinois, Johns-Manville, Thermal Industries, and Georgia-Pacific

Gaskets and Packing Materials

Asbestos-containing compressed sheet gaskets on pipe flanges, pump casings, and vessel heads
Asbestos-containing braided packing in valve stems throughout the process and steam systems
Asbestos-containing spiral-wound and envelope gaskets manufactured by Garlock Sealing Technologies
Asbestos-containing products from Armstrong World Industries and comparable suppliers

Your Legal Rights and Next Steps

A mesothelioma or asbestos-related cancer diagnosis is a medical emergency and a legal emergency at the same time. Missouri’s five-year statute of limitations begins running from diagnosis — and it does not pause while you recover, grieve, or decide what to do.

Compensation may be available through multiple channels: direct litigation against manufacturers of asbestos-containing products, claims against Honeywell and its corporate predecessors as successor-in-interest, and recovery from the dozens of asbestos bankruptcy trust funds established by former ACM manufacturers. Many of these trusts pay claims without litigation. An experienced asbestos attorney Missouri will identify every viable source of recovery and pursue them in parallel.

You have worked hard. You deserve answers, and you deserve compensation. Call an asbestos cancer lawyer St. Louis today — not next week, today.

Data Sources

Information about facility equipment, industrial materials, and occupational records referenced on this page is drawn from publicly available sources where applicable, including:

EPA ECHO Facility Compliance Database — enforcement and compliance records for industrial facilities
OSHA Establishment Search — federal workplace inspection history
[EIA Form 860 Plant Data](https://www.eia.gov