About Marion Plant Marion Illinois

If you worked at the Marion Plant in Marion, Illinois, or traveled there on behalf of a member cooperative, you may have been exposed to asbestos-containing materials during decades of power generation and maintenance activities. Asbestos-containing materials were standard components of virtually every coal-fired steam generating station built or expanded during the mid-twentieth century — used in thermal insulation, gaskets, refractory materials, and equipment throughout facilities like Marion.

Comparable asbestos exposure conditions have been alleged at coal-fired stations along the Mississippi River industrial corridor, where Illinois and Missouri share a dense concentration of power generation facilities. If you are a former employee, contract worker, or family member experiencing respiratory symptoms, chest pain, or a mesothelioma or asbestosis diagnosis years after working at Marion, understanding your exposure history and legal options is not optional — it is urgent.

Missouri’s current 5-year filing window remains intact today. Pending 2026 legislation threatens to impose new procedural barriers. Contact an experienced Illinois mesothelioma lawyer today, not tomorrow.

General Equipment at Marion Plant Marion Illinois

The equipment below represents the systems and infrastructure documented or typically present at this facility during the era when asbestos-containing materials were specified in industrial construction. This is general facility-equipment reference — not a legal attribution of any specific product, manufacturer, or exposure event to this facility. Material-category and manufacturer information is addressed in the AsbestosIndex Product Crosswalk linked under the records table below.

Boilers View crosswalk › Steam Turbines View crosswalk › Steam Traps View crosswalk › Condensers View crosswalk › Feedwater Heaters View crosswalk › Cooling Towers View crosswalk › Pipe Insulation View crosswalk › Block Insulation View crosswalk › Refractory Lining View crosswalk › Valves View crosswalk › Gaskets View crosswalk › Pumps View crosswalk ›

Documented Asbestos Evidence

The records below are verified, state-documented asbestos removals at this facility. Each entry represents a regulated abatement project where the Illinois Environmental Protection Agency (Illinois EPA) was notified under federal NESHAP rules, the work was logged, and the asbestos-containing material was confirmed and removed under regulated conditions. These are not allegations or estimates — they are paper records tying documented asbestos-containing material to this specific site.

No Illinois EPA NESHAP abatement notifications have been identified for this facility in current public records. Per the framing above, absence of state-agency documentation should not be read as absence of asbestos — only as absence of a formal, regulated abatement event meeting reporting thresholds. Workers who recall encountering pipe insulation, block insulation, gaskets, or other asbestos-era construction materials at this facility may still have viable claims regardless of whether a state record exists.

Material Categories in Documented Records

The materials documented above (and similar asbestos-containing materials commonly encountered in records of this type) appear in the AsbestosIndex catalog with historical manufacturer and trust-fund information. Click a category to view manufacturers historically associated with that material:

Thermal System Insulation View crosswalk › Asbestos-Cement Board View crosswalk › Pipe Insulation View crosswalk › Roofing & Flashing View crosswalk › Spray Fireproofing View crosswalk › Floor Tile & Mastic View crosswalk › Ceiling Tile View crosswalk › Gaskets & Packing View crosswalk ›

Who May Have Been Exposed at Marion Plant Marion Illinois

Overview of the Marion Plant

The Marion Plant is a coal-fired steam generating station located in Marion, Williamson County, Illinois, in the Southern Illinois coalfields region. The facility has reportedly been operating since at least 2003 in its current configuration and is rated at approximately 120 megawatts (MW) of generating capacity. The Marion Plant’s infrastructure and equipment reflect construction and maintenance practices extending back decades — a period when asbestos-containing materials were specified by engineers and supplied by major American manufacturers to virtually every industrial steam-generating installation in the country.

The Marion Plant is owned and operated by Southern Illinois Power Cooperative, Inc. (SIPC), a generation and transmission (G&T) cooperative that supplies wholesale power to a network of member electric distribution cooperatives across rural southern Illinois.

The Marion Plant sits within the broader Mississippi River industrial corridor — the dense band of power plants, chemical facilities, refineries, steel mills, and manufacturing operations that lines both banks of the Mississippi from St. Louis northward into Illinois and Missouri. This corridor includes some of the most heavily documented sites of industrial asbestos use in either state. On the Missouri side, comparable asbestos exposure conditions have been alleged at:

  • Labadie Energy Center (Franklin County, MO — operated by Ameren UE), one of the largest coal-fired stations in Missouri
  • Portage des Sioux Power Plant (St. Charles County, MO — Ameren UE), situated directly on the Mississippi River
  • Sioux Energy Center (St. Charles County, MO)
  • Rush Island Energy Center (Jefferson County, MO — Ameren UE)
  • Granite City Steel (Granite City, Madison County, IL), where workers may have been exposed to asbestos-containing insulation and refractory materials
  • Monsanto Chemical / Solutia facilities (St. Louis, MO), where asbestos-containing materials were allegedly present in process piping and equipment insulation

Workers at these facilities and at the Marion Plant may have been exposed to asbestos-containing insulation products from, and , among other manufacturers.

If you worked at any of these facilities and have received a mesothelioma or asbestosis diagnosis, Missouri’s current 5-year filing window is open — but pending legislation threatens to impose new barriers after August 28, 2026. Contact a Illinois mesothelioma lawyer today.

The Seven Member Cooperatives That Own the Marion Plant

The following cooperatives collectively own Southern Illinois Power Cooperative and therefore own the Marion Plant:

  • Clay Electric Cooperative, Inc.
  • Clinton County Electric Cooperative, Inc.
  • Egyptian Electric Cooperative Association
  • Monroe County Electric Cooperative, Inc.
  • SouthEastern Illinois Electric Cooperative, Inc.
  • Southern Illinois Electric Cooperative
  • Tri-County Electric Cooperative, Inc.

Each cooperative holds an ownership stake in the power generated at Marion. This structure matters to your legal claim for several reasons:

  • Employees of any of these seven member cooperatives may have visited or worked at the Marion Plant
  • Contract workers sent by any member cooperative may have been assigned to Marion for maintenance and operational work
  • SIPC employees worked directly at the Marion Plant in roles that may have involved proximity to asbestos-containing materials
  • Contract workers and outside maintenance crews — including members of Heat and Frost Insulators Local 1 (St. Louis, MO), Plumbers and Pipefitters UA Local 562 (St. Louis, MO), and Boilermakers Local 27 (St. Louis, MO) — reportedly performed work at the facility during planned maintenance outages
  • Workers from Missouri who traveled to perform outage work may have specific claims under Missouri asbestos lawsuit filing procedures and Missouri mesothelioma settlement frameworks

The geographic proximity of the Marion Plant to the St. Louis metropolitan area means that members of these St. Louis-area union locals frequently traveled to southern Illinois facilities for scheduled outages and major maintenance projects. Workers who were members of Heat and Frost Insulators Local 1, UA Local 562, or Boilermakers Local 27 and who performed outage work at Marion may have claims governed by Missouri’s asbestos trust fund and litigation rules.

If you worked for any of these organizations and have an asbestos-related diagnosis, contact an asbestos litigation attorney to discuss your Missouri mesothelioma settlement options — before the August 28, 2026 procedural deadline approaches.

Critical Filing Deadline & Next Steps

Illinois law gives mesothelioma and asbestos-disease claimants 2 years from the date of medical diagnosis to file a personal-injury lawsuit (735 ILCS 5/13-202). For wrongful-death claims after an asbestos-related death, the filing window is 2 years from the date of death (740 ILCS 180/2). The two deadlines run on separate tracks — preserving one does not extend the other.

The personal-injury clock runs from diagnosis, not from exposure. Mesothelioma latency is typically 20 to 50 years, so workers exposed in the 1950s–1980s are being diagnosed today.

Practical first steps

  1. Document what you remember. Pay stubs, W-2s, union cards, photographs, coworker names, and dates of employment. The WorkChain widget on this page can save a copy you can email yourself.
  2. Preserve medical records. Pathology reports, biopsy results, imaging, and pulmonary-function tests are central to both civil claims and trust-fund filings.
  3. Identify household members. Spouses who laundered work clothing and children of plant workers are eligible for secondary-exposure claims when diagnosed with an asbestos-related disease.
  4. Speak with an asbestos attorney with Illinois experience. The first conversation is free and confidential. Asbestos trust-fund claims and civil claims run on different tracks — both can be pursued in parallel.

Asbestos-Related Diseases

Asbestos fiber exposure can cause several specific diseases that typically appear decades after the original exposure. The latency period — the gap between exposure and diagnosis — usually runs 20 to 50 years. That's why workers exposed in the 1960s, 1970s, and 1980s are receiving diagnoses today.

Mesothelioma

A rare, aggressive cancer that affects the lining of the lungs (pleural mesothelioma), abdomen (peritoneal), or heart (pericardial). Mesothelioma is almost exclusively caused by asbestos exposure, which is why a mesothelioma diagnosis often points directly to historical workplace exposure. Average latency from first exposure to diagnosis is 30-50 years.

Asbestosis

A chronic, non-cancerous scarring of lung tissue caused by inhaled asbestos fibers. Asbestosis causes progressive shortness of breath, persistent cough, and reduced lung function. It does not improve with treatment, and it is a recognized basis for compensation under most trust schedules and civil claims.

Lung Cancer

Asbestos exposure significantly increases the risk of lung cancer, particularly when combined with a history of smoking. Asbestos-related lung cancer is compensable under the same trust schedules and civil claim avenues as mesothelioma.

Other Recognized Diseases

Pleural plaques, pleural thickening, laryngeal cancer, ovarian cancer, and certain gastrointestinal cancers are also recognized as asbestos-related under various trust schedules and case-law authorities, though eligibility and proof requirements vary by claim type.

If you have any of these diagnoses and you worked at this facility, lived with someone who did, or were exposed in any documented capacity, you may have a claim worth pursuing. Speak with an attorney before assuming you don't qualify.

Data Sources

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

If specific equipment or product claims in this article are sourced from a non-public database, the source is identified parenthetically within the text above.