Superfund Information Systems: Site Profile

Superfund Site:

MALONE SERVICE CO - SWAN LAKE PLANT
TEXAS CITY, TX

Operable Units

During cleanup, a site can be divided into a number of distinct areas depending on its complexity. These areas, called operable units (OUs), may address geographic areas, specific problems, or areas where a specific action is required. Examples of typical operable units include construction of a groundwater pump and treatment system or construction of a cap over a landfill.

OU ID Name Types of Contaminants
Present at the Time of
ROD Completion
Cleanup Technologies Selected
in the Decision Document
00 SITEWIDE
01 OU-01
  • 1,1,2,2-TETRACHLOROETHANE
  • 1,1,2-TRICHLOROETHANE
  • 1,2-DIBROMOETHANE
  • 1,2-DICHLOROETHANE
  • 2,3,7,8-TETRACHLORODIBENZO-p-DIOXIN (TCDD) TOXICITY EQUIVALENTS (TEq)
  • 2-METHYLNAPHTHALENE
  • ALDRIN
  • ALUMINUM
  • ARSENIC
  • BENZENE
  • BENZO(B)FLUORANTHENE
  • BENZO[A]ANTHRACENE
  • BENZO[A]PYRENE
  • BIS(2-CHLOROETHYL)ETHER
  • BIS(2-ETHYLHEXYL)PHTHALATE
  • CADMIUM
  • CHLOROETHENE (VINYL CHLORIDE)
  • CHLOROFORM
  • CHROMIUM
  • COPPER
  • DIBENZO(A,H)ANTHRACENE
  • HEXACHLOROBENZENE
  • HEXACHLOROBUTADIENE
  • INDENO(1,2,3-CD)PYRENE
  • MERCURY
  • METHYLENE CHLORIDE
  • NICKEL
  • PENTACHLOROPHENOL
  • PHENANTHRENE
  • POLYCYCLIC AROMATIC HYDROCARBONS (PAHS)
  • SELENIUM
  • SILVER
  • TETRACHLOROETHENE
  • TOTAL PCBs
  • TOTAL XYLENES, UNSPECIFIED MIXTURE
  • TRANS-1,2-DICHLOROETHYLENE
  • TRICHLOROETHENE
  • ZINC
  • cis-1,2-DICHLOROETHYLENE
  • Consolidate (onsite)
  • Excavation
  • Institutional Controls
  • Monitored Natural Attenuation
  • Monitoring
  • Solidification/Stabilization (exsitu, onsite)
03 OU-03

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