221320 Sewage Treatment Facilities

This industry comprises establishments primarily engaged in operating sewer systems or sewage treatment facilities that collect, treat, and dispose of waste.

Cross-References. Establishments primarily engaged in--
  • Operating waste treatment or disposal facilities (except sewer systems or sewage treatment facilities)--are classified in Industry 56221, Waste Treatment and Disposal;
  • Pumping (i.e., cleaning) septic tanks and cesspools--are classified in U.S. Industry 562991, Septic Tank and Related Services; and
  • Cleaning and rodding sewers and catch basins--are classified in U.S. Industry 562998, All Other Miscellaneous Waste Management Services.
2007
NAICS
  2012
NAICS
  2017
NAICS
  Corresponding Index
Entries
221320 221320 221320  Collection, treatment, and disposal of waste through a sewer system
221320 221320 221320  Sewage disposal plants
221320 221320 221320  Sewage treatment plants or facilities
221320 221320 221320  Sewer systems
221320 221320 221320  Waste collection, treatment, and disposal through a sewer system