Mason City Coal Gasification Plant

Superfund site in Mason City, IA · EPA ID IAD980969190

Mason City Coal Gasification Plant is a Superfund site in Mason City, IA on the EPA National Priorities List (Currently on the Final NPL). Contaminants of concern include 1,2-DIHYDROACENAPHTHYLENE, 2-METHYLNAPHTHALENE, 9H-FLUORENE, ACENAPHTHYLENE. At Mason City Coal Gasification Plant, the EPA has determined that human exposure is under control.

EPA status

National Priorities List
Currently on the Final NPL
Human exposure under control
Yes
Groundwater migration under control
Yes
Construction complete
Yes
Sitewide ready for reuse
Yes
Federal facility
No
EPA region
07
County
Cerro Gordo

Contaminants of concern

Grouped by the environmental medium in which the EPA recorded them.

Groundwater

  • 1,2-Dihydroacenaphthylene
  • 2-Methylnaphthalene
  • 9h-Fluorene
  • Acenaphthylene
  • Anthracene
  • Benzene
  • Benzo(B)Fluoranthene
  • Benzo(Ghi)Perylene
  • Benzo(K)Fluoranthene
  • Benzo[A]Anthracene
  • Benzo[A]Pyrene
  • Bromodichloromethane
  • Chrysene
  • Dibenzo(A,H)Anthracene
  • Dibenzo[A,H]Pyrene
  • Ethylbenzene
  • Fluoranthene
  • Indeno(1,2,3-Cd)Pyrene
  • Lead
  • Naphthalene
  • Phenanthrene
  • Pyrene
  • Toluene
  • Xylene (Mixed Isomers)

Sediment

  • Benzo(B)Fluoranthene
  • Benzo(K)Fluoranthene
  • Benzo[A]Anthracene
  • Benzo[A]Pyrene
  • Chrysene
  • Dibenzo(A,H)Anthracene
  • Indeno(1,2,3-Cd)Pyrene
  • Phenanthrene

Soil

  • 9h-Fluorene
  • Acenaphthylene
  • Anthracene
  • Arsenic
  • Benzene
  • Benzo(B)Fluoranthene
  • Benzo(Ghi)Perylene
  • Benzo(K)Fluoranthene
  • Benzo[A]Anthracene
  • Benzo[A]Pyrene
  • Chloroethene (Vinyl Chloride)
  • Chrysene
  • Dibenzo(A,H)Anthracene
  • Fluorine (F2)
  • Indeno(1,2,3-Cd)Pyrene
  • Lead
  • Naphthalene
  • Phenanthrene
  • Pyrene

Surface Water

  • Benzo[A]Anthracene

Location

5TH ST, BETWEEN DELAWARE & PENNSYLVANIA, Mason City, IA 50401

Latitude 43.1476, longitude -93.1992

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