Lower Duwamish Waterway

Superfund site in Seattle, WA · EPA ID WA0002329803

Lower Duwamish Waterway is a Superfund site in Seattle, WA on the EPA National Priorities List (Currently on the Final NPL). Contaminants of concern include ARSENIC, CARCINOGENIC POLYCYCLIC AROMATIC HYDROCARBONS (CPAH), CHLORINATED DIOXINS AND FURANS, POLYCHLORINATED BIPHENYLS (PCBS). The EPA has not published a human-exposure determination for Lower Duwamish Waterway.

EPA status

National Priorities List
Currently on the Final NPL
Human exposure under control
Not reported
Groundwater migration under control
Not reported
Construction complete
Not reported
Sitewide ready for reuse
Not reported
Federal facility
No
EPA region
10
County
King

Contaminants of concern

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

Fish Tissue

  • Arsenic
  • Carcinogenic Polycyclic Aromatic Hydrocarbons (Cpah)
  • Chlorinated Dioxins And Furans
  • Polychlorinated Biphenyls (Pcbs)

Sediment

  • 1,2,4-Trichlorobenzene
  • 1,2-Dichlorobenzene
  • 1,2-Dihydroacenaphthylene
  • 1,4-Dichlorobenzene
  • 2,4-Dimethylphenol
  • 2-Methylnaphthalene
  • 4-Methylphenol (P-Cresol)
  • 9h-Fluorene
  • Anthracene
  • Arsenic
  • Benzo(B)Fluoranthene
  • Benzo(Ghi)Perylene
  • Benzo(K)Fluoranthene
  • Benzoic Acid
  • Benzo[A]Anthracene
  • Benzo[A]Pyrene
  • Bis(2-Ethylhexyl)Phthalate
  • Butyl Benzyl Phthalate
  • Cadmium
  • Carcinogenic Polycyclic Aromatic Hydrocarbons (Cpah)
  • Chlorinated Dioxins And Furans
  • Chromium
  • Chrysene
  • Copper
  • Dibenzo(A,H)Anthracene
  • Dibenzofuran
  • Dimethyl Phthalate
  • Fluoranthene
  • Hexachlorobenzene
  • Indeno(1,2,3-Cd)Pyrene
  • Lead
  • Mercury
  • N,N-Diphenylnitrous Amide
  • Naphthalene
  • Pentachlorophenol
  • Phenanthrene
  • Phenol
  • Phenylmethanol
  • Polychlorinated Biphenyls (Pcbs)
  • Polycyclic Aromatic Hydrocarbons, High Molecular Weight (Hpahs)
  • Polycyclic Aromatic Hydrocarbons, Low Molecular Weight (Lpahs)
  • Pyrene
  • Silver
  • Total Benzofluoranthenes
  • Zinc

Location

RK 2.5 TO RK 10.8, Seattle, WA 98168

Latitude 47.510081, longitude -122.29285

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