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Delaware Asbestos Exposure Sites: Worksites, Industries, and Trust Coverage

Reviewed by Justinian C. Lane, Attorney Last reviewed November 2026

DuPont made gunpowder on the Brandywine for more than a century before it made nylon at Seaford, and the company it grew into set the tone for Delaware industry. Its headquarters and laboratories filled Wilmington; refineries, chemical plants, a steel mill, and coal-fired power stations lined the river from Claymont down to Delaware City; and asbestos insulated the boilers, steam lines, and furnaces in nearly all of them. Most of the state's entries fall in five places:

  • Delaware City — the refinery Tidewater Oil built and Getty Oil ran, the worksite more trusts recognize than any other in Delaware, with Stauffer Chemical's plant beside it;
  • Claymont, at the Pennsylvania line — Allied Chemical's Delaware Works and the Phoenix Steel mill;
  • Wilmington and Edgemoor — DuPont's headquarters and Experimental Station, and Delmarva Power & Light's Edge Moor generating station;
  • New Castle — the Avisun plant and the Atlas Point chemical works; and
  • Kent and Sussex counties — DuPont's Seaford nylon plant, General Foods at Dover, and the Indian River power plant near Millsboro.

When these companies went bankrupt, the trusts set up to pay their asbestos claims each published a list of locations where its products were proven to be present. For Delaware, those lists hold 814 entries across 33 communities, from 27 asbestos trusts. One plant can appear many times, under different names or on different trusts' lists. Several of our clients worked at Delaware job sites.

Every asbestos trust claim has to prove two things: that a company's asbestos-containing product was present at a job site, and that the worker handled that product, or worked close enough to it, to breathe its dust. If you or your loved one worked at a site on those lists during the applicable years, the first half is already established, because the trust has acknowledged its products were there.

We help workers who are alive and recently diagnosed, adult children and spouses researching on behalf of someone who is sick, and families of workers who have already passed away from mesothelioma, lung cancer, or asbestosis. If you are a worker who has just been diagnosed, calling early keeps more options open for your family. There is still a claim to be made for families of workers who have already passed; we handle wrongful death cases routinely.

You don't need the product names or old records. No fee unless we recover compensation for your family.

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Delaware filing deadlines and trust eligibility, in brief

Delaware gives a diagnosed worker two years to file a personal-injury claim. Exactly when the clock starts varies, so to be safe, count from the date of diagnosis. A separate deadline applies once a worker has passed away. If your loved one is alive and diagnosed, calling early keeps more options open.

Delaware deadlines, the wrongful-death rule, and how they apply to your family

Most workers exposed before 1983 can also file against the Johns-Manville Settlement Trust independently of anything documented at a specific site. How trust eligibility works.

We help families of workers who have already passed away. Wrongful death claims, estate claims, and trust filings on behalf of deceased workers are a standard part of our practice.

The sites profiled below show confirmed asbestos products based on the asbestos trusts established for companies that did business there. Those trusts exist because Clarence Borel, a Gulf Coast insulator, chose to sue in 1969 — not for himself, but because he realized his coworkers would die the same way he was dying. His decision created the legal framework that produced the trust system you're about to scan.

Today the choice is yours. You can file trust claims based on the documented exposure at your loved one's worksite — paper claims, no courtroom. Or you can follow Clarence Borel and also sue the manufacturers and premises owners directly, which allows us to build a full exposure profile for every site your loved one worked at and recover from defendants the trust system doesn't reach. Read his story.

Asbestos trust coverage across Delaware

The Johns-Manville Settlement Trust is open to most workers exposed before 1983, regardless of which specific worksite the exposure occurred at. Johns-Manville supplied so much asbestos and so many asbestos products across so many American industries that the trust does not require site-specific documentation. For mesothelioma claims, even one day of asbestos exposure before December 31, 1982 (at work or through a family member's work clothes brought into the home) can qualify a worker for Johns-Manville Settlement Trust compensation.

For lung cancer, asbestosis, and other non-mesothelioma asbestos diseases, the threshold is 60 months of total asbestos exposure with at least 6 months occurring before December 31, 1982. The one-day-of-exposure threshold for mesothelioma reflects how the disease actually develops (even brief exposure can cause it) and most major asbestos trusts apply similarly low-threshold eligibility for mesothelioma claims.

Because Johns-Manville keeps no site list of its own, every worksite on another trust's list also qualifies for Johns-Manville. Twenty-six other trusts list Delaware worksites. The number of Delaware entries on each trust's list:

Trust coverage at this depth means most Delaware workers with significant industrial exposure histories will trigger filings against multiple trusts simultaneously — typically Johns-Manville plus the site-specific trusts documented at their worksites.

Delaware cities and their industries

Open a city to see the worksites there that the asbestos trusts recognize, grouped by industry, with why each industry used asbestos.

WilmingtonWilmington was DuPont's home: the company's headquarters in the DuPont Building and its research campuses at the Experimental Station and Chestnut Run, alongside Hercules, the Pennsylvania Railroad shops, and General Motors' assembly plant.8 worksites

Chemical plants. Chemical plants combined high heat with corrosive service: furnaces and reactors lined with asbestos refractory, steam lines wrapped in asbestos insulation, and acid-resistant asbestos gaskets and packing at every flange.

  • DuPont (Wilmington locations not named)
  • DuPont Chestnut Run
  • DuPont Experimental Station
  • Hercules Powder Company (Hercules Incorporated)
  • Hercules Research Center

Auto plants. Auto plants ran their own powerhouses, paint ovens, heat-treating furnaces, and foundries, all insulated and lined with asbestos, and the millwrights, pipefitters, and electricians who kept the lines running worked around it every shift.

  • General Motors Wilmington assembly plant

Public and commercial buildings. Office towers, hospitals, schools, hotels, and government buildings were built with asbestos fireproofing, insulation, plaster, and floor tile, exposing the trades who built and renovated them and the maintenance crews who kept their boilers and steam lines running.

  • DuPont Building and Hotel du Pont

Railroads. Steam locomotives were insulated with asbestos, and railroad shops relined boilers and replaced brake shoes and gaskets on equipment that carried asbestos for decades after diesels arrived.

  • Pennsylvania Railroad Wilmington shops
ClaymontClaymont, on the Delaware River at the Pennsylvania line, held Allied Chemical's Delaware Works, Sun Oil's chemical plants, and the Phoenix Steel mill.4 worksites

Chemical plants. Chemical plants combined high heat with corrosive service: furnaces and reactors lined with asbestos refractory, steam lines wrapped in asbestos insulation, and acid-resistant asbestos gaskets and packing at every flange.

  • Allied Chemical Delaware Works (General Chemical)
  • Sun Oil chemical plant
  • Sun Olin Chemical (Sunolin) plant

Steel, metals, and metalworking. Steel mills, foundries, tool works, and aluminum plants used asbestos wherever metal was melted, poured, or heat-treated: refractory brick and cement, insulation on furnaces and ladles, and asbestos protective clothing.

  • Phoenix Steel
Delaware CityDelaware City's industry grew around the refinery Tidewater Oil built in the mid-1950s, later Getty's, with the Stauffer and Diamond Shamrock chemical plants and a Delmarva Power station beside it.4 worksites

Chemical plants. Chemical plants combined high heat with corrosive service: furnaces and reactors lined with asbestos refractory, steam lines wrapped in asbestos insulation, and acid-resistant asbestos gaskets and packing at every flange.

  • Diamond Shamrock (Diamond Alkali)
  • Stauffer Chemical

Refineries and petrochemical plants. Refineries ran on heat: crude heaters, cat crackers, boilers, and miles of steam and process piping, all insulated, lined, and sealed with asbestos products into the late 1970s. Insulators, pipefitters, boilermakers, and the contract crews who worked turnarounds carried the heaviest exposure.

  • Delaware City refinery (Tidewater Oil, Getty Oil)

Power plants and utilities. Power plants' boilers, turbines, and high-pressure steam lines were insulated, lined, and sealed with asbestos products, and every overhaul released dust across the plant.

  • Delmarva Power & Light Delaware City station
EdgemoorEdgemoor, on the river just north of Wilmington, paired Delmarva Power & Light's Edge Moor generating station with DuPont's Edge Moor pigments plant.2 worksites

Chemical plants. Chemical plants combined high heat with corrosive service: furnaces and reactors lined with asbestos refractory, steam lines wrapped in asbestos insulation, and acid-resistant asbestos gaskets and packing at every flange.

  • DuPont Edge Moor plant

Power plants and utilities. Power plants' boilers, turbines, and high-pressure steam lines were insulated, lined, and sealed with asbestos products, and every overhaul released dust across the plant.

  • Delmarva Power & Light Edge Moor plant
New CastleNew Castle's riverfront industry included the Avisun plastics plant and the Atlas Powder works at Atlas Point, later Atlas Chemical and ICI Americas.2 worksites

Chemical plants. Chemical plants combined high heat with corrosive service: furnaces and reactors lined with asbestos refractory, steam lines wrapped in asbestos insulation, and acid-resistant asbestos gaskets and packing at every flange.

  • Avisun Corporation
  • ICI Americas Atlas Point plant (Atlas Powder, Atlas Chemical)
Other Delaware communitiesOne worksite each in 5 more communities.5 worksites

Chemical plants. Chemical plants combined high heat with corrosive service: furnaces and reactors lined with asbestos refractory, steam lines wrapped in asbestos insulation, and acid-resistant asbestos gaskets and packing at every flange.

  • DuPont Newport plant (Krebs Pigment) — Newport
  • DuPont Seaford nylon plant — Seaford

Food plants, breweries, and sugar mills. Sugar mills, breweries, corn and flour mills, and packing houses ran on steam: boilers, cookers, evaporators, and dryers, with miles of insulated pipe, all built with asbestos insulation, gaskets, and packing.

  • General Foods (later Kraft Foods) — Dover

Public and commercial buildings. Office towers, hospitals, schools, hotels, and government buildings were built with asbestos fireproofing, insulation, plaster, and floor tile, exposing the trades who built and renovated them and the maintenance crews who kept their boilers and steam lines running.

  • University of Delaware — Newark

Power plants and utilities. Power plants' boilers, turbines, and high-pressure steam lines were insulated, lined, and sealed with asbestos products, and every overhaul released dust across the plant.

  • Delmarva Power & Light Indian River plant — Millsboro

Mesothelioma settlement values at Delaware's most-documented worksites

These worksites appear on the approved-site lists of at least four trusts besides Johns-Manville. Trust counts are minimums: a trust may list a site under a name we haven't yet matched to it. The years are the exposure window the trusts' lists recognize at each site; most lists end at 1982.

Open a worksite to see each trust that lists it, with the mesothelioma values the trust publishes and its current payment percentage. "Trust values together" adds up those trusts' values at their payment percentages: the low figure uses each trust's scheduled value, the high figure each trust's published maximum, which Individual Review can reach. Most mesothelioma claims are paid above the scheduled value. But each trust sets its own eligibility rules — the years, the work, and the length of exposure it requires — so few people qualify for every trust on a list, some trusts publish no fixed schedule, and these figures are not a prediction of any recovery. All trust values and payment percentages.

Delaware City refinery (Tidewater Oil, Getty Oil)Delaware City · at least 16 trusts · 1955–1982 · trust values together about $330,000 to $2.2 million
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Eagle-PicherNo fixed schedule—Set case by case
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Flexitallic$50,000 – $150,0002.9%$1,450 – $4,350
GAF$155,000 – $450,0005.0%$7,750 – $22,500
NARCO$75,000 – $1,379,580100%$75,000 – $1,379,580
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
RaytechNot published——
W.R. Grace$180,000 – $450,00030.1%$54,180 – $135,450
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Seaford nylon plantSeaford · at least 13 trusts · 1939–1982 · trust values together about $190,000 to $620,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Eagle-PicherNo fixed schedule—Set case by case
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
GAF$155,000 – $450,0005.0%$7,750 – $22,500
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
RaytechNot published——
Turner & Newall$200,000 – $600,0002.9%$5,800 – $17,400
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Allied Chemical Delaware Works (General Chemical)Claymont · at least 11 trusts · 1948–1982 · trust values together about $190,000 to $680,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ABB Lummus$1,000 – $400,0009.5%$95 – $38,000
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Flexitallic$50,000 – $150,0002.9%$1,450 – $4,350
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Delmarva Power & Light Edge Moor plantEdgemoor · at least 11 trusts · 1948–1982 · trust values together about $140,000 to $480,000
TrustMesothelioma valuePayment %Payment at that %
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Eagle-PicherNo fixed schedule—Set case by case
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Turner & Newall$200,000 – $600,0002.9%$5,800 – $17,400
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Stauffer ChemicalDelaware City · at least 10 trusts · 1940–1982 · trust values together about $120,000 to $320,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
GAF$155,000 – $450,0005.0%$7,750 – $22,500
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Edge Moor plantEdgemoor · at least 10 trusts · 1934–1982 · trust values together about $190,000 to $640,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Eagle-PicherNo fixed schedule—Set case by case
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont (Wilmington locations not named)Wilmington · at least 10 trusts · 1902–1982 · trust values together about $77,000 to $260,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ABB Lummus$1,000 – $400,0009.5%$95 – $38,000
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Eagle-PicherNo fixed schedule—Set case by case
GAF$155,000 – $450,0005.0%$7,750 – $22,500
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
RaytechNot published——
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Avisun CorporationNew Castle · at least 9 trusts · 1955–1982 · trust values together about $110,000 to $280,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Eagle-PicherNo fixed schedule—Set case by case
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Turner & Newall$200,000 – $600,0002.9%$5,800 – $17,400
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Newport plant (Krebs Pigment)Newport · at least 9 trusts · 1950–1982 · trust values together about $170,000 to $550,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
GAF$155,000 – $450,0005.0%$7,750 – $22,500
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Phoenix SteelClaymont · at least 8 trusts · 1966–1982 · trust values together about $96,000 to $280,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Kaiser AluminumNot published——
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
General Foods (later Kraft Foods)Dover · at least 8 trusts · 1963–1982 · trust values together about $140,000 to $370,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
W.R. Grace$180,000 – $450,00030.1%$54,180 – $135,450
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Delmarva Power & Light Indian River plantMillsboro · at least 8 trusts · 1955–1982 · trust values together about $180,000 to $620,000
TrustMesothelioma valuePayment %Payment at that %
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Eagle-PicherNo fixed schedule—Set case by case
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
ICI Americas Atlas Point plant (Atlas Powder, Atlas Chemical)New Castle · at least 8 trusts · 1961–1982 · trust values together about $100,000 to $300,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Sun Oil chemical plantClaymont · at least 7 trusts · 1942–1982 · trust values together about $96,000 to $250,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Delmarva Power & Light Delaware City stationDelaware City · at least 7 trusts · 1956–1982 · trust values together about $110,000 to $380,000
TrustMesothelioma valuePayment %Payment at that %
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
RaytechNot published——
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Diamond Shamrock (Diamond Alkali)Delaware City · at least 7 trusts · 1960–1982 · trust values together about $88,000 to $230,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
GAF$155,000 – $450,0005.0%$7,750 – $22,500
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
University of DelawareNewark · at least 7 trusts · 1954–1982 · trust values together about $140,000 to $410,000
TrustMesothelioma valuePayment %Payment at that %
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
W.R. Grace$180,000 – $450,00030.1%$54,180 – $135,450
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Building and Hotel du PontWilmington · at least 7 trusts · 1906–1982 · trust values together about $140,000 to $370,000
TrustMesothelioma valuePayment %Payment at that %
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Turner & Newall$200,000 – $600,0002.9%$5,800 – $17,400
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
W.R. Grace$180,000 – $450,00030.1%$54,180 – $135,450
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Experimental StationWilmington · at least 7 trusts · 1938–1982 · trust values together about $180,000 to $590,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
General Motors Wilmington assembly plantWilmington · at least 7 trusts · 1945–1982 · trust values together about $79,000 to $230,000
TrustMesothelioma valuePayment %Payment at that %
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Eagle-PicherNo fixed schedule—Set case by case
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Hercules Research CenterWilmington · at least 7 trusts · 1962–1982 · trust values together about $90,000 to $280,000
TrustMesothelioma valuePayment %Payment at that %
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
GAF$155,000 – $450,0005.0%$7,750 – $22,500
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Sun Olin Chemical (Sunolin) plantClaymont · at least 6 trusts · 1961–1982 · trust values together about $52,000 to $160,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ABB Lummus$1,000 – $400,0009.5%$95 – $38,000
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Chestnut RunWilmington · at least 6 trusts · 1955–1982 · trust values together about $150,000 to $470,000
TrustMesothelioma valuePayment %Payment at that %
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Hercules Powder Company (Hercules Incorporated)Wilmington · at least 6 trusts · 1955–1982 · trust values together about $46,000 to $150,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
ABB Lummus$1,000 – $400,0009.5%$95 – $38,000
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
GAF$155,000 – $450,0005.0%$7,750 – $22,500
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Pennsylvania Railroad Wilmington shopsWilmington · at least 6 trusts · 1948–1982 · trust values together about $140,000 to $490,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Scott Paper CompanyDover · at least 5 trusts · 1973–1982 · trust values together about $46,000 to $130,000
TrustMesothelioma valuePayment %Payment at that %
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Continental-Diamond FibreNewark · at least 5 trusts · 1941–1982 · trust values together about $140,000 to $480,000
TrustMesothelioma valuePayment %Payment at that %
A.P. Green$165,6946.0%$9,941.64
DII Industries (Halliburton)$60,718.95 – $256,00060%$36,431.37 – $153,600
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Owens-Illinois$100,000 – $382,60065%$65,000 – $248,690
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Louviers Engineering Test CenterNewark · at least 5 trusts · 1966–1982 · trust values together about $82,000 to $230,000
TrustMesothelioma valuePayment %Payment at that %
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Delaware HospitalWilmington · at least 5 trusts · 1964–1982 · trust values together about $56,000 to $160,000
TrustMesothelioma valuePayment %Payment at that %
ACandS$150,000 – $550,0002.89%$4,335 – $15,895
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
GAF$155,000 – $450,0005.0%$7,750 – $22,500
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
DuPont Brandywine BuildingWilmington · at least 5 trusts · 1962–1982 · trust values together about $86,000 to $240,000
TrustMesothelioma valuePayment %Payment at that %
Armstrong World Industries$110,000 – $400,0007.8%$8,580 – $31,200
Owens Corning$215,000 – $650,0004.3%$9,245 – $27,950
Pittsburgh Corning$175,000 – $500,00019%$33,250 – $95,000
U.S. Gypsum$155,000 – $450,00010%$15,500 – $45,000
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000
Pusey & Jones shipyardWilmington · at least 5 trusts · 1946–1982 · trust values together about $40,000 to $140,000
TrustMesothelioma valuePayment %Payment at that %
Babcock & Wilcox$90,000 – $400,0004.3%$3,870 – $17,200
Combustion Engineering$75,000 – $400,00015.3%$11,475 – $61,200
Eagle-PicherNo fixed schedule—Set case by case
Fibreboard$135,000 – $450,0003.5%$4,725 – $15,750
Johns-Manville$350,000 – $750,0005.6%$19,600 – $42,000

A closer look at major Delaware worksites

The worksites below are recognized by the most asbestos trusts in Delaware — nine or more, counting Johns-Manville. Each profile draws on the trust signatures present at the site to identify the products workers handled, the trades most heavily exposed, and the asbestos types they likely encountered. Your specific worksite may be documented even if it doesn't appear here — call us.

Delaware City refinery (Tidewater Oil, Getty Oil) — Delaware City

Recognized by at least 16 asbestos trusts · 1955–1982

Tidewater Oil built this refinery on the Delaware River at Delaware City in the mid-1950s, and it became Getty Oil's when Getty absorbed Tidewater; Texaco bought Getty in 1984, and the refinery has run under several owners since. It has long been one of the largest refineries on the East Coast. The trusts list it under Tidewater Oil, Tidewater Associated Oil, Getty Oil, Texaco, and Star Enterprise, by unit (the cokers, crackers, reformer, alkylation and sulphur units, and the CO boilers among them), and under Reybold as well as Delaware City; it is one facility.

Workers exposed. Refinery operations of this scale required pipefitters, insulators, boilermakers, refractory workers, mechanics, millwrights, instrument technicians, and electricians. The maintenance workforce in particular cycled through every process unit on the site over the course of a career, accumulating exposure across the full range of asbestos-containing products at the refinery.

Trust documentation: recognized by at least 16 asbestos trusts — A.P. Green, ACandS, Armstrong World Industries, Babcock & Wilcox, DII Industries (Halliburton), Eagle-Picher, Fibreboard, Flexitallic, GAF, NARCO, Owens Corning, Owens-Illinois, Pittsburgh Corning, Raytech, W.R. Grace, and Johns-Manville. The trusts' lists document their products here from 1955 through 1982.

Products, trust signatures, and asbestos types. Because the Owens-Illinois trust signature is present, Owens-Illinois Kaylo high-temperature pipe insulation, an amosite (brown asbestos) product, was used at this site during the 1948–1958 manufacturing window, when the refinery was built; Owens Corning continued the Kaylo line afterward, and Pittsburgh Corning's amosite-rich Unibestos covered the hottest process and steam lines. Fibreboard and Armstrong supplied more pipe and block insulation, much of it applied by ACandS crews, and Eagle-Picher One-Cote went on as insulating cement. A.P. Green and NARCO refractory lined the cokers, cat crackers, reformer, and process heaters. Babcock & Wilcox boilers, including the CO boilers, carried insulation, refractory, and gaskets and packing, and Flexitallic spiral-wound gaskets sealed the high-pressure flanges. The Halliburton signature reflects pumps and compressors from Ingersoll, Dresser, Pacific, and Worthington, Raytech the friction products on rotating equipment, W.R. Grace Monokote spray fireproofing on structural steel, and GAF roofing felts and mastics. Chrysotile (white asbestos) ran through most of these product categories, and crocidolite (blue asbestos) appeared in the gaskets and packing of the alkylation and sulphur units' acid service.

DuPont Seaford nylon plant — Seaford

Recognized by at least 13 asbestos trusts · 1939–1982

DuPont opened its Seaford plant in 1939 as the world's first nylon plant, and it made nylon yarn in Sussex County for decades afterward. The trusts list it under DuPont, E.I. du Pont de Nemours, and the Seaford Works, and break it into many areas — the 501 Building, the powerhouse and Dow boilers, the Dowtherm and polymer areas, the spinning and draw-twist rooms, and the plant's own insulator and pipefitter shops; it is one facility.

Workers exposed. Pipefitters, insulators, boilermakers, millwrights, mechanics, and electricians, including the plant's own insulator and pipefitter crews, along with the operators who worked in the polymer and spinning areas and the construction crews on its expansion projects.

Trust documentation: recognized by at least 13 asbestos trusts — A.P. Green, Armstrong World Industries, Combustion Engineering, Eagle-Picher, Fibreboard, GAF, Owens Corning, Owens-Illinois, Pittsburgh Corning, Raytech, Turner & Newall, U.S. Gypsum, and Johns-Manville. The trusts' lists document their products here from 1939 through 1982.

Products, trust signatures, and asbestos types. Nylon polymer was made and spun at high temperature, with Dowtherm heat-transfer systems carrying the heat through miles of insulated piping. Because the Owens-Illinois trust signature is present, Owens-Illinois Kaylo high-temperature pipe insulation, an amosite (brown asbestos) product, was used at this site during the 1948–1958 manufacturing window, followed by Owens Corning's Kaylo line; Pittsburgh Corning's amosite-rich Unibestos, Fibreboard, and Armstrong covered more of the Dowtherm and steam piping, and Eagle-Picher supplied insulating cement. Combustion Engineering boilers in the powerhouse carried pipe and block insulation, A.P. Green refractory, and gaskets and packing. The Turner & Newall signature points to Limpet sprayed asbestos, an amosite product, and asbestos textiles; U.S. Gypsum reflects joint compound and plaster in the plant's buildings, GAF its roofing, and Raytech friction products. Chrysotile (white asbestos) ran through most of these product categories.

Allied Chemical Delaware Works (General Chemical) — Claymont

Recognized by at least 11 asbestos trusts · 1948–1982

General Chemical Company's Delaware Works on the river at Claymont became part of Allied Chemical & Dye when General Chemical joined the 1920 merger that formed it; Allied Chemical later became AlliedSignal and, in 1999, part of Honeywell. The trusts list it under Allied Chemical, Allied Chemical & Dye, General Chemical, the Delaware Works, and the Delaware Valley Works, with separate entries for its acid, chlorine, soap, and sulphur units and its heaters and reactors; it is one facility.

Workers exposed. Chemical operations required pipefitters, insulators, boilermakers, refractory workers, mechanics, instrument technicians, and electricians.

Trust documentation: recognized by at least 11 asbestos trusts — A.P. Green, ABB Lummus, Armstrong World Industries, Babcock & Wilcox, DII Industries (Halliburton), Fibreboard, Flexitallic, Owens Corning, Owens-Illinois, Pittsburgh Corning, and Johns-Manville. The trusts' lists document their products here from 1948 through 1982.

Products, trust signatures, and asbestos types. Because the Owens-Illinois trust signature is present, Owens-Illinois Kaylo high-temperature pipe insulation, an amosite (brown asbestos) product, was used at this site during the 1948–1958 manufacturing window, with Owens Corning continuing the Kaylo line afterward; Pittsburgh Corning's amosite-rich Unibestos covered the heaters and reactors, and Fibreboard and Armstrong supplied more pipe and block insulation. A.P. Green refractory lined the process heaters and the sulphur plant, and Babcock & Wilcox boilers carried insulation, refractory, and gaskets and packing. Flexitallic spiral-wound gaskets sealed the high-pressure flanges, the Halliburton signature reflects pumps and compressors from Ingersoll, Dresser, Pacific, and Worthington, and ABB Lummus did chemical-plant engineering and construction here. Chrysotile (white asbestos) ran through most of these product categories, and crocidolite (blue asbestos) appeared in the gaskets and packing of the acid units.

Delmarva Power & Light Edge Moor plant — Edgemoor

Recognized by at least 11 asbestos trusts · 1948–1982

The Edge Moor generating station sits on the Delaware River just north of Wilmington. Delaware Power & Light, which became Delmarva Power & Light, ran it for decades before it passed to Conectiv. The trusts list it under both utility names and by unit — Units 2 through 6 and the GE turbines and generators — and some file it under Wilmington or Claymont; it is one facility.

Workers exposed. Boilermakers, pipefitters, insulators, refractory workers, mechanics, and electricians worked across the generating units. Construction and major-overhaul cycles were the highest-exposure periods.

Trust documentation: recognized by at least 11 asbestos trusts — ACandS, Armstrong World Industries, Babcock & Wilcox, Combustion Engineering, DII Industries (Halliburton), Eagle-Picher, Fibreboard, Owens Corning, Pittsburgh Corning, Turner & Newall, and Johns-Manville. The trusts' lists document their products here from 1948 through 1982.

Products, trust signatures, and asbestos types. The Babcock & Wilcox and Combustion Engineering signatures reflect the station's boilers, with their pipe and block insulation, refractory, and gaskets and packing. Owens Corning's Kaylo line and Pittsburgh Corning's Unibestos, both made with amosite (brown asbestos), covered the high-temperature steam piping, with more insulation from Fibreboard and Armstrong and Eagle-Picher insulating cement; ACandS crews did insulation contracting at the plant. The Turner & Newall entry for the GE turbines and generators points to Limpet sprayed asbestos, an amosite product, on the turbine casings, and the Halliburton signature reflects pumps. Chrysotile (white asbestos) ran through most of these product categories.

Stauffer Chemical — Delaware City

Recognized by at least 10 asbestos trusts · 1940–1982

Stauffer Chemical's Delaware City plant stood near the refinery. The trusts list it by area — the cell building, the CS-2 and sulphur areas, the PVC and plastics areas, the reactors, heaters, and dryers, the pipe racks, and the powerhouse — and once as Stauffer's Tide Water plant; it is one facility. The Stauffer-Hoechst polymer plant on School House Road is listed separately.

Workers exposed. Chemical manufacturing of this scale required pipefitters, insulators, boilermakers, refractory workers, mechanics, instrument technicians, and electricians. The powerhouse was a particularly intense exposure environment — high-pressure boiler operations concentrated insulation, refractory, and gasket work.

Trust documentation: recognized by at least 10 asbestos trusts — A.P. Green, ACandS, Armstrong World Industries, Babcock & Wilcox, Fibreboard, GAF, Owens Corning, Pittsburgh Corning, U.S. Gypsum, and Johns-Manville. The trusts' lists document their products here from 1940 through 1982.

Products, trust signatures, and asbestos types. Pittsburgh Corning's amosite-rich Unibestos is listed in nearly every area of the plant, from the heaters and reactors to the pipe racks and powerhouse, and Owens Corning's Kaylo line, its high-temperature grades made with amosite (brown asbestos), and Fibreboard and Armstrong pipe and block insulation covered more of the process and steam piping, much of it applied by ACandS crews. A.P. Green refractory lined the heaters and reactors, and Babcock & Wilcox boilers in the powerhouse carried insulation, refractory, and gaskets and packing. U.S. Gypsum reflects joint compound used in plant construction and maintenance, and GAF roofing and felt products. Chrysotile (white asbestos) ran through most of these product categories, and crocidolite (blue asbestos) appeared in the gaskets and packing of the sulphur and CS-2 areas' acid service.

DuPont Edge Moor plant — Edgemoor

Recognized by at least 10 asbestos trusts · 1934–1982

DuPont's Edge Moor plant on the Delaware River made titanium dioxide, the white pigment in paint, paper, and plastics, for decades. The trusts list it under DuPont and E.I. du Pont de Nemours, with separate entries for its acid area, tank farm, White Building, and Z-process area; it is one facility.

Workers exposed. Pipefitters, insulators, boilermakers, refractory workers, mechanics, millwrights, and instrument technicians, along with the construction crews who built and expanded the plant.

Trust documentation: recognized by at least 10 asbestos trusts — A.P. Green, Armstrong World Industries, Babcock & Wilcox, DII Industries (Halliburton), Eagle-Picher, Fibreboard, Owens Corning, Owens-Illinois, Pittsburgh Corning, and Johns-Manville. The trusts' lists document their products here from 1934 through 1982.

Products, trust signatures, and asbestos types. Because the Owens-Illinois trust signature is present, Owens-Illinois Kaylo high-temperature pipe insulation, an amosite (brown asbestos) product, was used at this site during the 1948–1958 manufacturing window, followed by Owens Corning's Kaylo line; Pittsburgh Corning's amosite-rich Unibestos covered high-temperature lines in the process areas, and Fibreboard and Armstrong supplied more pipe and block insulation, with Eagle-Picher insulating cement. A.P. Green refractory lined the process furnaces, Babcock & Wilcox boilers carried insulation, refractory, and gaskets and packing, and the Halliburton signature reflects pumps and compressors. Chrysotile (white asbestos) ran through most of these product categories, and crocidolite (blue asbestos) appeared in the gaskets and packing of the acid area.

Avisun Corporation — New Castle

Recognized by at least 9 asbestos trusts · 1955–1982

Avisun, a joint venture of American Viscose and Sun Oil, as its name suggests, made polypropylene plastic at its New Castle plant. The trusts list it under Avisun and Avisun Corporation and by area — the boiler area, heat exchangers, towers and vessels, solvent recovery, pump work, hoppers, storage tanks, and warehouse; it is one facility.

Workers exposed. Pipefitters, insulators, boilermakers, mechanics, and instrument technicians worked across the plant — the boiler area, pump work, solvent recovery, and towers all concentrated asbestos product handling.

Trust documentation: recognized by at least 9 asbestos trusts — A.P. Green, Armstrong World Industries, Eagle-Picher, Fibreboard, Owens Corning, Pittsburgh Corning, Turner & Newall, U.S. Gypsum, and Johns-Manville. The trusts' lists document their products here from 1955 through 1982.

Products, trust signatures, and asbestos types. Pittsburgh Corning's amosite-rich Unibestos is listed across the plant's areas, and Owens Corning's Kaylo line, its high-temperature grades made with amosite (brown asbestos), and Fibreboard and Armstrong supplied more pipe and block insulation, with Eagle-Picher One-Cote and magnesia insulating cement. The Turner & Newall signature points to Limpet sprayed asbestos, an amosite product, and in high-temperature service Limpet Blue, made with crocidolite (blue asbestos). A.P. Green refractory lined the boilers and heaters, and U.S. Gypsum reflects joint compound in plant construction. Chrysotile (white asbestos) ran through most of these product categories.

DuPont Newport plant (Krebs Pigment) — Newport

Recognized by at least 9 asbestos trusts · 1950–1982

DuPont's Newport plant, west of Wilmington, made pigments. The trusts list it under DuPont, E.I. du Pont de Nemours, and Krebs Pigment & Chemical, the earlier company whose name the trusts still attach to the plant, with entries for its Blue, Green, and Red Rooms, its White Building, and its cooling tower; it is one facility.

Workers exposed. Pipefitters, insulators, boilermakers, refractory workers, mechanics, millwrights, and electricians, along with the construction and maintenance crews.

Trust documentation: recognized by at least 9 asbestos trusts — A.P. Green, Armstrong World Industries, Combustion Engineering, Fibreboard, GAF, Owens Corning, Owens-Illinois, Pittsburgh Corning, and Johns-Manville. The trusts' lists document their products here from 1950 through 1982.

Products, trust signatures, and asbestos types. Because the Owens-Illinois trust signature is present, Owens-Illinois Kaylo high-temperature pipe insulation, an amosite (brown asbestos) product, was used at this site during the 1948–1958 manufacturing window, followed by Owens Corning's Kaylo line; Pittsburgh Corning's amosite-rich Unibestos covered high-temperature lines, and Fibreboard and Armstrong supplied more pipe and block insulation. Combustion Engineering boilers carried insulation, A.P. Green refractory, and gaskets and packing, and GAF documentation points to roofing felts and mastics. Chrysotile (white asbestos) ran through most of these product categories.

Delaware entries by city

The trusts' lists hold Delaware entries in 33 communities. Open the list below for the number of entries in each. Call us for any specific worksite — whether or not the city appears here.

Entries on the trusts' lists, city by city33 communities
CityEntries on the trusts' lists
Wilmington294
Delaware City112
Claymont85
New Castle70
Seaford52
Newark38
Edgemoor33
Dover30
Newport21
Millsboro18
New Castle County14
Reybold6
Smyrna5
Elsmere4
Lewes4
Cheswold3
Clayton3

Entries are also listed in Bridgeville, Camden-Wyoming, Dagsboro, Ellendale, Fort DuPont, Georgetown, Glasgow, Greenville, Greenwood, Marshallton, Middletown, Milford, New Bridge, Rockford, Wyoming and Yorklyn.

Search the asbestos trusts' Delaware lists

Type any name the plant went by — the company, a later owner, or the city — to see every entry on the trusts' lists that matches, as the trusts wrote it, with each trust and the years it lists.

Court decisions: 172 asbestos cases from Delaware courts

Worksites named in court opinions

Court decisions in our library name these Delaware workplaces as places where people were exposed to asbestos.

DuPont Seaford nylon plant

Seaford · Factory or plant · 3 decisions · Our profile of this site

Getty (Tidewater) Oil refinery

Delaware City · Refinery · 3 decisions · Our profile of this site

DuPont Edge Moor plant

Edgemoor · Chemical plant · 2 decisions · Our profile of this site

Avisun Corporation / Amoco plant

New Castle · Chemical plant · 1 decision · Our profile of this site

Delmarva Power & Light Delaware City plant

Delaware City · Power plant · 1 decision

Delmarva Power & Light Edge Moor plant

Edgemoor · Power plant · 1 decision · Our profile of this site

Haveg plant

Factory or plant · 1 decision

ICI Americas Atlas Point plant

New Castle · Chemical plant · 1 decision

Port of Wilmington (NASCO site)

Wilmington · Port or dock · 1 decision

Every worksite named in Delaware court decisions, with all their decisions

Don't see your worksite?

Your worksite may be documented even if it doesn't appear on this page. If your loved one worked at a Delaware facility not listed, call us. Johns-Manville requires no site list at all, and we can often document exposure through the products, contractors, and equipment at a site even when no trust lists it by name.

Smaller worksites, contract jobs, short-tenure employment, and exposures across multiple sites are all part of the case-building process.

Call 833-4-ASBESTOS for a free case review.

How a Delaware case may work

Paul is a 71-year-old retired refinery maintenance worker from Delaware City. From 1973 through 2005 — 32 years — he worked at the Delaware City refinery, under Getty Oil and the owners who followed. Across his career, Paul rotated through the major process units, the boiler and steam systems, the pipefitting and millwright shops, the gasket and packing maintenance crews servicing valves and pumps on high-pressure refinery equipment, the refractory replacement crews on process heaters, and the insulation crews working on high-temperature steam piping and process equipment. He handled pipe insulation, block insulation, gaskets, packing, and refractory daily. He never wore respiratory protection during the years that mattered, because nobody told him he needed it.

Paul had no major health complaints until late 2025, when he developed shortness of breath, persistent chest pain, and pleural effusion. Imaging and a pleural biopsy in early 2026 confirmed pleural mesothelioma of the biphasic mesothelioma histological subtype. Like many Delaware City refinery workers of his generation, Paul had no idea that his decades of refinery maintenance work could cause cancer decades later.

After Paul's family retained our firm, we matched his work history to the asbestos bankruptcy trusts that list the refinery. Its listings support filings against at least fifteen site-specific trusts — A.P. Green, ACandS, Armstrong World Industries, Babcock & Wilcox, DII Industries (Halliburton), Eagle-Picher, Fibreboard, Flexitallic, GAF, NARCO, Owens Corning, Owens-Illinois, Pittsburgh Corning, Raytech, and W.R. Grace — each subject to its own rules on the years and work it requires. When to file the trust claims and the civil case is decided case by case with our trial team. And because Paul's career began in 1973, before the end of 1982, he may also qualify for the Johns-Manville Settlement Trust, which keeps no site list; eligibility depends on meeting the trust's medical and exposure criteria.

Recoveries from cases like Paul's routinely fund what insurance does not cover — travel to academic cancer centers, lodging during extended treatment, out-of-pocket medication costs, and home help. The nearest NCI-designated cancer center for a Delaware worker is the Abramson Cancer Center at the University of Pennsylvania in Philadelphia, roughly 35 miles from Delaware City, where advanced treatments including lung-sparing surgery, multimodal therapy, and the latest immunotherapy combinations are available through Penn Medicine's mesothelioma program. The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins in Baltimore is approximately 70 miles away. When the written agreement and applicable law permit it, our firm can also advance the cost of travel and lodging when getting to the right treatment center matters. How legal recovery funds mesothelioma treatment access →. We also offer free asbestos health screening for Paul's wife and adult children, who may have had take-home exposure from his work clothes over three decades. The screening is a chest X-ray read by a B-reader, with a CT scan if needed; it looks for asbestos-related changes in the lungs and isn't a diagnosis or a reliable way to find mesothelioma early.

For the full doctrinal treatment of Delaware's discovery rule, separate disease rule, comparative fault framework, take-home exposure duty, premises liability standard, and damages framework, see the Delaware mesothelioma law guide.

This example is general. Every case depends on the diagnosis, exposure history, dates, defendants, applicable law, and available evidence.

What happens when you call

A staff attorney answers — not a screener. The first call usually runs 20 to 30 minutes. We listen to the work history, identify which Delaware worksites and trust channels apply to your loved one's exposure, and explain the timeline and case structure for your family's specific situation.

We never pressure anyone to retain us during the first call. If you decide to move forward, we come to you — phone, video, or home visit, whichever works best. No travel to our offices is required at any point in the case.

You do not need to come to the call with product names, exposure dates, or work records. We reconstruct the exposure history using our worksite database, the trust documentation for each manufacturer, employment and union records, and coworker interviews. The conversation starts with what you remember; we handle the documentation work from there.

A spouse, adult child, or other family member can call for the worker. Many of our first calls are from a daughter or wife researching on behalf of a parent or husband. That is standard, and the family member can make the call without the worker on the line.

Call 833-4-ASBESTOS for a free case review.

Why families choose our firm

  • $400M+ recovered and 200,000+ verified exposure sites nationally; all 814 Delaware entries on the asbestos trusts' lists; several clients with Delaware job sites
  • Worksite-specific knowledge — we operate from documented trust coverage rather than from generic intake scripts. From the first call, we can speak to the products, trades, and trust channels at your loved one's specific Delaware facility
  • Trust + civil + federal benefits coordinated case by case with the trial team — trust claims, Delaware civil cases, and federal benefits (VA for veterans, FECA for federal civilian employees, SSDI for eligible claimants) are coordinated together
  • Remote case handling — phone, video, or home visit. No travel to our offices is required at any point
  • Free family asbestos health screening for family members of every client
  • No fee unless we recover compensation for your family

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Frequently asked questions

Is my Delaware worksite documented?

Probably yes. The asbestos trusts' approved-site lists hold 814 Delaware entries in 33 communities — refineries, chemical plants, power stations, DuPont's plants and laboratories, steel and manufacturing plants, hospitals, schools, and a wide range of smaller industrial and commercial operations across the state. You can search every entry on this page. Even if a specific facility isn't listed, we can often document exposure there through the products and contractors involved. Call us with the worksite name and we can confirm coverage during the first conversation.

What does "trust coverage" mean for my case?

Trust coverage means that an asbestos manufacturer that supplied a particular Delaware worksite went bankrupt and established a settlement trust to pay claims for workers exposed to its products. Each trust operates independently with its own claim form, eligibility criteria, and payment schedule. Our role is to identify every trust that has documented presence at your loved one's worksite, file the claim packages against each, and coordinate the trust filings with any civil case against still-solvent manufacturers and premises owners. Trust claims do not require going to court.

Does my loved one qualify for the Johns-Manville trust?

Probably yes, if your loved one had asbestos exposure before 1983 and developed an asbestos-related disease. Johns-Manville does not require proof that its products were at a specific worksite, and for mesothelioma even one day of exposure can qualify. How Johns-Manville eligibility works.

Do I need to know which asbestos products my loved one handled?

No. Many workers handled asbestos products without knowing what they were — the products were sold under brand names like Kaylo, Unibestos, Limpet, Monokote, and dozens of others, often without explicit asbestos labeling during the heavy exposure decades. We reconstruct the product-handling history from the worksite, the trades involved, the time period, and the trust documentation. You bring what you remember; we handle the documentation work.

What if my loved one worked at multiple Delaware sites?

That is common and helpful. Workers who spent careers across the Delaware River corridor — moving from refineries to chemical plants to utility stations, or working as contractors across multiple sites — typically have layered exposure documentation. We build the full career exposure profile and file against every trust with documented presence at any of the worksites.

What if my loved one's worksite has closed or been demolished?

Site closure or demolition does not affect the claim. Trust documentation persists in the trust records regardless of whether the facility still operates. Many of the most heavily documented Delaware sites — including some of the historic refining and chemical operations along the Delaware River — have changed hands, been demolished, or been redeveloped. The asbestos exposure that occurred there decades ago remains the basis for both trust filings and civil claims against the manufacturers and premises owners.

Can we file a claim if my loved one already passed away?

Yes. Wrongful death and survival claims on behalf of deceased workers are a standard part of our practice. Delaware applies a two-year filing deadline from the date of death for wrongful death claims, with a one-year savings statute available in defined circumstances. Trust filings on behalf of estates also continue after the worker's death. Call us promptly after a death — the timing of the filing affects the case structure.

My loved one served at Dover Air Force Base or the Delaware Air National Guard Base — what now?

Active-duty and veteran service members at Dover AFB and the Delaware ANG Base may qualify for VA service-connected disability for mesothelioma and other asbestos diseases. Federal civilian employees at Dover AFB, the Delaware ANG Base, the Wilmington VA Medical Center, and other federal installations are covered by the Federal Employees' Compensation Act (FECA). These federal benefits work alongside civil claims and asbestos trust recoveries, though some must be coordinated, because a few programs carry offsets or repayment rules. We coordinate the federal filings with the trust and civil filings case by case.

Talk with a Delaware asbestos lawyer

Whether your family is dealing with a new diagnosis, a very sick loved one, or a death from mesothelioma, we are ready to help. Your loved one's worksite may already be on the trusts' lists — or we can help document it if it isn't.

You do not need to know the product names. You do not need to have all the records. You do not need to travel to our office. A spouse or adult child can call for the family.

This page is provided for general informational purposes and does not constitute legal advice. Every asbestos case turns on its own facts, exposure history, diagnosis, deadlines, available evidence, and applicable law. Reviewing this page does not create an attorney-client relationship. For advice about your specific situation, call 833-4-ASBESTOS for a free case review.