About Asbestos Exposure at Parkland Health Center-Bonne Terre

The Mechanical Infrastructure

Hospital mechanical systems of the mid-20th century were engineering-intensive environments. Central boiler plants generated high-pressure steam distributed throughout the facility for space heating, sterilization, and domestic hot water — all of it requiring extensive insulation to maintain efficiency and prevent burn injuries to workers.

At facilities like Parkland Health Center-Bonne Terre, the mechanical infrastructure may have included high-pressure and fire-tube boilers manufactured by:

  • — reportedly supplied industrial boilers with asbestos-containing gaskets, refractory materials, and steam line components
  • Cleaver-Brooks — manufactured packaged boilers with asbestos-lined fireboxes and insulation systems
  • York-Shipley (a division of Borg-Warner) — produced boilers with asbestos-containing refractory brick, rope packing, and joint compounds

All reportedly incorporated asbestos-containing gaskets, rope seals, and refractory cement in original construction and repair kits.

Specific Products Alleged to Have Been Present

Specific abatement records for Parkland Health Center-Bonne Terre are subject to ongoing discovery in litigation. Hospital facilities of this construction type and era are well-documented in asbestos litigation and trust fund records to have reportedly contained the following ACMs:

Insulation and Pipe Covering:

  • Thermobestos** — widely used in boiler rooms and steam systems, reportedly applied as spray insulation and pre-formed pipe sections
  • calcium silicate pipe insulation** — pre-formed pipe insulation commonly specified for institutional steam distribution lines
  • Carey pipe covering — asbestos-reinforced insulation typically wrapped with canvas; standard in institutional steam applications
  • Asbestos-containing duct insulation wrapping HVAC ductwork and air-handling units, reportedly supplied by manufacturers and ceiling tile
  • Insulating cement and joint compound — applied by hand to fittings, flanges, and valve bodies, often mixed on-site from powder without dust containment
  • Superex and pipe insulation products** — spray-applied or troweled thermal and acoustic insulation in mechanical spaces

Spray-Applied Fireproofing:

  • spray-applied fireproofing** and similar products reportedly applied to structural steel beams and floor decking per building code fire-rating requirements
  • Asbestos-containing spray-applied materials on columns and structural connections common to hospital construction of this era

Floor, Ceiling, and Structural Materials:

  • vinyl asbestos floor tiles — 9-inch and 12-inch formats in corridors and utility areas, reportedly installed with asbestos-containing mastics
  • Acoustical ceiling systems reportedly containing asbestos as a fire-retardant component, including Armstrong and Gold Bond branded products
  • Asbestos-cement transite board and panels manufactured by companies, reportedly used in mechanical rooms, electrical enclosures, and around high-heat equipment
  • Asbestos-containing roofing felts and mastic in flat-roof construction common to hospital additions built through the 1980s

High-Risk Locations Within the Facility

Workers are alleged to have encountered the greatest asbestos fiber concentrations in the following areas:

  • Boiler room and central plant — the epicenter of exposure, where and Cleaver-Brooks boilers with asbestos refractory materials and Thermobestos insulation were reportedly installed and regularly serviced
  • Pipe chases — narrow vertical and horizontal channels running floor to floor where and calcium silicate pipe insulation fibers allegedly accumulated through deterioration and repeated disturbance
  • Mechanical rooms and plenums — confined spaces where maintenance work disturbed spray-applied fireproofing spray coating and where asbestos debris reportedly collected over decades
  • Steam distribution lines — routed through walls, ceilings, and utility corridors with and Carey pipe covering reportedly applied without modern containment procedures
  • HVAC equipment rooms — containing and ceiling tile duct insulation, allegedly disturbed during maintenance without respiratory protection

General Equipment at Asbestos Exposure at Parkland Health Center-Bonne Terre

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.

Industrial Boilers View crosswalk › Process Piping View crosswalk › Pipe Insulation View crosswalk › Block Insulation View crosswalk › Valves View crosswalk › Gaskets View crosswalk › Pumps View crosswalk › Heat Exchangers View crosswalk › Cooling Equipment 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 Missouri Department of Natural Resources (Missouri DNR) 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 Missouri DNR 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 Asbestos Exposure at Parkland Health Center-Bonne Terre

Exposure risk at this facility was not uniform. It concentrated in specific trades whose work put them in direct, repeated contact with asbestos-containing materials. Many workers at Missouri hospital facilities belonged to Heat and Frost Insulators Local 1 (St. Louis) and Plumbers and Pipefitters UA Local 562 (St. Louis).

Boilermakers

Workers in this trade are alleged to have regularly:

  • Installed, repaired, and re-tubed , Cleaver-Brooks, and York-Shipley boilers incorporating asbestos refractory brick and insulating cement
  • Disturbed asbestos rope packing and refractory lining around firebox and flue connections during overhaul work
  • Handled asbestos-containing insulating cement and gasket material applied to boiler fittings and seams
  • Removed and replaced asbestos-containing boiler block insulation during tube replacement cycles

Boiler repair work inherently involved aggressive mechanical disturbance of asbestos materials. Fiber release during this work was not incidental — it was unavoidable.

Pipefitters and Steamfitters

These workers are alleged to have routinely:

  • Cut, sawed, and removed Thermobestos and calcium silicate pipe insulation during installation and system modification
  • Disturbed pre-formed insulation sections during repair and replacement of steam distribution piping throughout the facility
  • Mixed and applied insulating cement to pipe joints and fittings, often without dust collection or respiratory protection
  • Worked in pipe chases and mechanical rooms where and Carey insulation fibers reportedly accumulated and became airborne during disturbance

Pipe modification work in this era commonly produced visible dust clouds. Workers routinely operated in those conditions for entire shifts.

Heat and Frost Insulators

Insulators are alleged to have:

  • Worked directly with Thermobestos, calcium silicate pipe insulation, Carey pipe covering, and pipe insulation and Superex products as their primary daily function
  • Mixed insulating cement on-site from asbestos-containing powder in confined mechanical spaces, creating significant airborne fiber concentrations
  • Applied pre-formed insulation sections to boilers, steam pipes, and mechanical equipment during construction and renovation
  • Sprayed or troweled products and similar fireproofing and thermal barrier systems without modern respiratory protection

For insulators, asbestos exposure was not a side effect of the job. It was the job.

HVAC Mechanics and Technicians

These workers may have been exposed by:

  • Disturbing and ceiling tile duct lining while working in mechanical plenum spaces
  • Removing or replacing asbestos-containing duct wrapping during equipment replacement and maintenance cycles
  • Handling insulated components within air-handling units reportedly containing asbestos insulation
  • Working in mechanical spaces where spray-applied fireproofing fireproofing had been applied to structural elements and remained friable

HVAC work in older hospital buildings frequently involved direct contact with asbestos-insulated ductwork, much of it deteriorating and releasing fibers without any physical disturbance.

Electricians

Electricians are alleged to have encountered asbestos exposure while:

  • Drilling through asbestos-cement transite panels reportedly manufactured by during conduit routing in mechanical rooms
  • Working above asbestos-containing Armstrong and Gold Bond ceiling tiles in plenums and attics
  • Performing work in pipe chases alongside insulators and pipefitters actively cutting and Carey insulation products
  • Installing equipment in boiler rooms where asbestos dust from boiler maintenance allegedly accumulated on surfaces and in the air

Electrical workers in mechanical areas were bystander victims — breathing fibers they never touched, released by adjacent trades working feet away.

Building Maintenance and Custodial Workers

These workers may have been chronically exposed through:

  • Daily repairs and contact with asbestos-containing materials throughout the facility over years or decades
  • Sweeping or disturbing dust from deteriorated Armstrong vinyl asbestos tile in corridors and utility areas
  • Working in mechanical rooms without knowing that asbestos-containing materials were present or actively deteriorating
  • Handling or removing damaged insulation and ceiling materials during routine facility upkeep

Maintenance and custodial workers rarely had the highest single-event exposure — but they had the longest duration. Decades of repeated low-level contact produce cumulative dose that the science consistently links to disease.

Critical Filing Deadline & Next Steps

Missouri law gives mesothelioma and asbestos-disease claimants 5 years from the date of medical diagnosis to file a personal-injury lawsuit (Mo. Rev. Stat. § 516.120). For wrongful-death claims after an asbestos-related death, the filing window is 3 years from the date of death (Mo. Rev. Stat. § 537.100). 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 Missouri 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.