DuPont Chambers Works — Deepwater, New Jersey (Delaware Workers)

Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that workers — including many residents of Delaware employed at the DuPont Chambers Works chemical manufacturing complex in Deepwater, Salem County, New Jersey, across the Delaware River from Wilmington — sustained occupational asbestos exposure during chemical manufacturing operations.

Facility Background

E.I. du Pont de Nemours & Company’s Chambers Works, located in Deepwater, New Jersey directly across the Delaware River from the Wilmington, Delaware metropolitan area, was one of the largest chemical manufacturing complexes in the United States. The facility produced dyes, pigments, specialty chemicals, refrigerants (Freon), and a wide range of industrial chemical products beginning in the World War I era.

Plaintiffs alleged that Chambers Works employed thousands of workers from the Delaware side of the river — particularly from Wilmington and New Castle County — and that these Delaware residents sustained occupational asbestos exposure during chemical manufacturing operations that relied heavily on asbestos-containing insulation and materials throughout the mid-twentieth century.

Alleged Asbestos Pathways

Plaintiffs alleged in litigation that asbestos exposure occurred through multiple pathways:

  • Process piping insulation throughout the complex: Plaintiffs alleged that the extensive networks of process piping carrying steam, solvents, acids, and chemical intermediates at elevated temperatures were insulated with asbestos pipe covering and block insulation, requiring regular installation and maintenance by insulators and pipefitters.
  • Reactor and vessel insulation: Plaintiffs alleged that chemical reactors, distillation columns, storage vessels, and drying equipment throughout the complex were insulated with asbestos-containing materials.
  • Steam generation and distribution: Plaintiffs alleged that the massive steam generating plants serving the Chambers Works used asbestos-insulated boilers, steam headers, and distribution piping.
  • Gaskets and valve packing: Plaintiffs alleged that asbestos compressed-fiber gaskets and braided valve packing were used throughout the complex’s process systems on flanged connections, valve stems, and pump seals.
  • Turnaround and construction contractors: Plaintiffs alleged that outside contractor workers — many from Delaware — employed during plant turnarounds, capital projects, and expansions encountered pervasive asbestos insulation throughout the facility.

Delaware has a two-year statute of limitations under 10 Del. C. § 8119, running from the date of mesothelioma diagnosis under the discovery rule. Wrongful death claims carry a two-year limit under 10 Del. C. § 3724. New Castle County Superior Court in Wilmington handles most asbestos-related litigation for Delaware workers.

Delaware workers who were employed at DuPont Chambers Works and who have since been diagnosed with mesothelioma or asbestos-related disease may have legal remedies available. Contact O’Brien Law Firm at (314) 237-3332 to discuss your work history and legal options at no cost.

Named Plants and Operating Era

Plaintiffs alleged in publicly filed U.S. asbestos personal-injury and wrongful-death litigation that specific named DuPont plants serving Delaware workers allegedly involved asbestos-containing materials during their principal operating eras. Documented footprint serving the Delaware labor market:

  • DuPont Chambers Works — Dyes and Pigments Complex — in Deepwater NJ (across the Delaware River from Wilmington DE / New Castle County), sprawling dyestuffs, aromatic-intermediates, and specialty-chemicals complex allegedly operating from 1917 through the modern era (progressively divested / partitioned to Chemours and remediation-in-place after 2015). Long-term employer of Delaware residents commuting across the Delaware Memorial Bridge and pre-bridge ferries.
  • DuPont Chambers Works — Freon / Refrigerants Unit — in Deepwater NJ, DuPont’s original chlorofluorocarbon (Freon-11/12/22) production unit allegedly operating from the 1930s through the CFC-phaseout era.
  • DuPont Chambers Works — Tetraethyl Lead (Deepwater Ethyl) — in Deepwater NJ, historic tetraethyl-lead antiknock production unit (with Ethyl Corp) allegedly operating during the asbestos era.
  • DuPont Chambers Works — Central Utilities / Power House — in Deepwater NJ, high-pressure steam and power generating station serving the entire complex during the asbestos era.

Plant-Era ACM Narrative

At DuPont Chambers Works, plaintiffs alleged the following plant-era asbestos exposure pathways during the principal U.S. asbestos era (approximately 1930s-1980):

  • Asbestos block insulation and asbestos pipe covering on high-pressure steam mains, superheater headers, and process piping throughout the dyestuffs, Freon, and utilities units
  • Asbestos boiler lagging, asbestos block on boiler drums, and asbestos rope in access-door seals on the Chambers Works powerhouse boilers
  • Asbestos-refractory brick and asbestos block on the reactors, calciners, and distillation columns in the dyes and intermediates buildings
  • Asbestos compressed-sheet gaskets and asbestos braided packing at the thousands of flanged connections, pumps, and valves across the sprawling complex
  • Asbestos spray-applied fireproofing on structural steel in the Freon, TEL, and dyes buildings during 1950s-1960s expansion campaigns

Trades and Local Union Coverage

Plaintiffs alleged that Delaware workers at Chambers Works came from the following unions and Locals during the asbestos era:

  • HFIAW Insulators Local 42 — Wilmington DE / Philadelphia jurisdiction — asbestos pipe covering and block insulation on Chambers Works process piping and vessels
  • UA Pipefitters Local 74 — Wilmington DE jurisdiction — flange bolt-up, gasket work, and process piping at Chambers Works
  • IBEW Electricians Local 313 — Wilmington DE jurisdiction — switchgear, motor-control center, and instrumentation work at Chambers Works
  • BAC Bricklayers Local 1 Delaware — Wilmington-area jurisdiction — refractory relining of reactors, boilers, and calciners
  • International Brotherhood of Boilermakers — the regional Local — Chambers Works powerhouse and pressure-vessel work
  • DuPont operating and maintenance workforce — many Delaware residents on Chambers Works production crews

Documented ACM Product Vectors Named in Litigation

Products from AP defendant manufacturers that plaintiffs alleged were supplied to or specified at DuPont Chambers Works during the asbestos era: