Mesothelioma Lawyer Iowa: Asbestos Attorney for Marshalltown Generating Station Workers

For Workers, Families, and Former Employees

This article is for educational and legal informational purposes. If you or a family member worked at the Marshalltown Generating Station and have been diagnosed with mesothelioma, asbestosis, or another asbestos-related disease, contact an experienced mesothelioma lawyer iowa immediately to discuss your legal rights.

⚠️ URGENT FILING DEADLINE WARNING FOR Iowa residents

If you or a family member worked at the Marshalltown Generating Station and has been diagnosed with mesothelioma or another asbestos-related disease, Missouri’s legal clock is already running.

Under Iowa Code § 614.1(2), Iowa provides a 5-year statute of limitations for asbestos personal injury claims, running from the date of diagnosis — not the date of exposure. That window may sound generous, but asbestos cancer claims require extensive investigation, product identification, and trust fund documentation that takes real time to compile. Waiting costs you evidence, witnesses, and options.

The 2026 Legislative Threat Is Real: Missouri ** Do not wait for your condition to worsen. Do not wait to see if legislation passes. Contact an asbestos attorney iowa today — the earlier you call, the stronger your position.

Why You Need to Read This Now

If you worked at the Marshalltown Generating Station — as a construction worker, utility employee, insulator, pipefitter, electrician, boilermaker, or contract laborer — you may have been exposed to asbestos-containing materials on the job. Mesothelioma, asbestosis, and lung cancer typically do not appear until 20–50 years after first exposure. If you have been diagnosed with one of these conditions, or if a family member died from mesothelioma after working at this facility, you may have legal rights to substantial compensation through asbestos lawsuits and trust fund claims.

This guide explains what happened at this plant, which occupations faced the greatest risk, how asbestos-related disease develops, and what legal options remain available to Iowa workers and families. An experienced asbestos cancer lawyer can evaluate your case, identify every available compensation source, and navigate Iowa’s mesothelioma settlement process on your behalf.

Workers from Missouri and Illinois who traveled to Marshalltown for construction, maintenance, or outage work should pay particular attention. The Marshalltown Generating Station sits within a regional power and industrial corridor connecting Iowa, Missouri, and Illinois — a corridor where asbestos-containing materials were reportedly deployed at facilities including Labadie Power Plant, Portage des Sioux Generating Station, Granite City Steel, and facilities associated with Monsanto operations along the Missouri and Illinois banks of the Mississippi. Workers who rotated among these facilities during the peak insulation era may have accumulated significant asbestos exposure across multiple worksites.

**Every day you delay is a day closer to the August 28, 2026 deadline after which

Table of Contents

  1. What the Marshalltown Generating Station Was
  2. Why Power Plants Used Asbestos-Containing Materials
  3. When Asbestos Was Used at This Facility
  4. Who Worked in High-Exposure Occupations
  5. Asbestos-Containing Products Alleged at This Facility
  6. Secondary and Bystander Exposure Risks
  7. How Asbestos-Related Diseases Develop
  8. Disease Latency and Diagnosis
  9. Your Legal Options as a Missouri Resident
  10. Iowa mesothelioma Settlement and Compensation Sources
  11. Finding an Experienced Asbestos Attorney Iowa
  12. Asbestos Iowa Resources
  13. Frequently Asked Questions
  14. Take Action: Contact a Mesothelioma Lawyer Today

What the Marshalltown Generating Station Was

Facility Location and Operator

The Marshalltown Generating Station is a coal-fired electric power generating facility in Marshalltown, Iowa, Marshall County, in central Iowa. MidAmerican Energy Company operates the facility and has done so under several corporate names throughout its history, including Iowa-Illinois Gas and Electric Company and Iowa Power and Light.

Historical Role and Construction

This facility has supplied electrical power to central Iowa since the mid-twentieth century. Like virtually every large-scale coal-fired power plant built before the late 1970s, it was constructed and maintained using insulation practices that were standard for the industry at the time — practices now understood to have created serious occupational health hazards.

Key characteristics:

  • Coal-fired power generation — operating at extreme temperatures requiring heat-resistant materials
  • Multiple construction phases — original construction, expansions, and major equipment upgrades over decades
  • Reported use of asbestos-containing materials — consistent with industry practice for facilities of this type and era
  • Long operational history — creating exposure risks across multiple generations of workers

The Marshalltown facility is part of the broader Mississippi River industrial corridor that historically connected Iowa, Missouri, and Illinois utilities through shared construction contractors, union dispatch halls, and equipment suppliers. Workers from Missouri and Illinois union locals were regularly dispatched to Iowa facilities — and vice versa — through regional labor agreements. This cross-state labor flow is directly relevant to legal venue and jurisdiction analysis for workers now residing in Missouri or Illinois.

Periods During Which Workers May Have Been Exposed

Workers at the Marshalltown Generating Station during the following periods may have been exposed to asbestos-containing materials:

  • Pre-1970s construction and early operation — when asbestos use was most intensive and least regulated
  • 1950s through 1970s — the peak era for routine maintenance work involving asbestos disturbance
  • Late 1970s through 1990s — during asbestos abatement and removal operations
  • Post-1990s — through contact with legacy asbestos-containing materials still present in the facility

Why Power Plants Used Asbestos-Containing Materials

Properties That Made Asbestos Commercially Dominant

Asbestos is a naturally occurring fibrous silicate mineral. Industrial-scale mining and manufacturing of asbestos-containing products began in the nineteenth century and expanded rapidly through the mid-twentieth century. For coal-fired power plants, asbestos was the dominant insulation material because of one specific combination of properties no competing product could match:

  • Extreme heat resistance — does not burn or melt below approximately 1,000°C; essential in power plant environments
  • High tensile strength — stronger than steel by weight
  • Chemical inertness — resists acid, alkali, and most corrosive substances
  • Electrical insulation — does not conduct electricity
  • Acoustic absorption — dampens sound from vibrating equipment
  • Low cost — inexpensive relative to competing alternatives
  • Workability — could be mixed, applied, shaped, and installed with standard tools

Why No Substitute Existed at the Time

A coal-fired power plant operates under conditions that simultaneously demand all of these properties:

  • Steam boilers exceeding 1,000°F
  • Steam pipes carrying superheated fluid under high pressure
  • Turbines and generators running at sustained extreme temperatures
  • Electrical systems requiring both thermal and electrical insulation
  • Maintenance windows too short to allow for lengthy material cure times

No commercially available alternative matched asbestos across all of these requirements at once. Engineers specified asbestos-containing materials because they performed, they were available, and manufacturers represented them as safe when properly used.

What Manufacturers Knew — and Concealed

Asbestos manufacturers marketed their products aggressively to utility companies, contractors, and industrial purchasers throughout the mid-twentieth century. Among the manufacturers whose products may have been present at Marshalltown and at companion facilities throughout the Missouri-Iowa-Illinois industrial corridor:

  • Johns-Manville Corporation — produced Kaylo asbestos-containing pipe covering and Thermobestos block insulation used extensively in power plant applications across the region
  • Owens-Illinois — manufactured Aircell and other asbestos-containing insulation products distributed throughout the Midwest
  • W.R. Grace & Company — produced asbestos-containing thermal insulation materials used at coal-fired facilities from Iowa through Missouri and into Illinois
  • Armstrong World Industries — supplied asbestos-containing acoustic and thermal products
  • Combustion Engineering — manufactured equipment and insulation systems allegedly containing asbestos-containing materials
  • Celotex Corporation — produced asbestos-containing insulation products
  • Eagle-Picher Industries — manufactured asbestos-containing thermal insulation products
  • Crane Co. — produced valves and fittings with asbestos-containing components widely used at utility facilities throughout Iowa and Illinois

Internal documents recovered in asbestos litigation established that executives at many of these companies were aware of serious health hazards associated with asbestos by the 1930s and 1940s — decades before any warnings appeared on their products and long before federal regulations required disclosure. This documented concealment is central to establishing liability in mesothelioma cases.

When Asbestos Was Used at This Facility

Construction and Early Operation (Pre-1970s)

The most concentrated asbestos exposure risk at Marshalltown typically occurred during:

  • Initial plant construction — when large quantities of asbestos-containing materials were installed
  • Major expansion phases — when facility upgrades required new equipment and piping systems
  • Equipment installations — when boilers, turbines, and distribution piping were first placed

During these periods, large crews of tradespeople allegedly worked directly with raw, friable asbestos-containing insulation in their most hazardous form:

  • Raw pipe insulation — sectional block asbestos-containing covering such as Kaylo, applied by hand
  • Boiler block insulation — large slabs of asbestos-containing refractory material including Thermobestos, cut and shaped on-site
  • Refractory compounds — asbestos-containing materials applied to boiler interiors
  • Gaskets and packing materials — requiring mixing, cutting, and installation
  • Asbestos cement products — mixed and applied on-site, including materials from Johns-Manville and Owens-Illinois

Workers reportedly applied these materials with no respiratory protection, generating high airborne fiber concentrations in enclosed spaces.

Peak Operational Era (1950s–1970s)

Routine maintenance, repair, and equipment replacement at Marshalltown during peak operation may have involved repeated disturbance of installed asbestos-containing materials. Every maintenance outage potentially created exposure:

  • Pipe fitting replacements on steam and condensate systems with asbestos-containing insulation covering
  • Boiler insulation patching and repairs involving asbestos-containing block materials
  • Gasket and packing replacement on valves and fittings with asbestos-containing components
  • Equipment modifications requiring disturbance of surrounding insulation
  • Routine inspections of high-temperature equipment
  • Cleaning and scaling of pipe insulation during scheduled maintenance

This exposure was not occasional. For workers in the trades, it was daily, routine, and cumulative — building year over year across an entire career.

Workers from Missouri and Illinois who traveled to Marshalltown for outage and turnaround work during this era carried their accumulated exposures with them — in many cases having already been exposed to asbestos-containing materials at Missouri facilities such as Labadie, Portage des Sioux, or Granite City Steel before arriving at Marshalltown.

Data Sources

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

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