NAICS 221320 Sewage Treatment Facilities

NAICS Code: 221320

Code Title: Sewage Treatment Facilities

Code Sector: 22 - Utilities

NAICS 221320 Sewage Treatment Facilities Description

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;
  • Cleaning and rodding sewers and catch basins--are classified in U.S. Industry 562998, All Other Miscellaneous Waste Management Services.

Alternate Titles

  • Collection, treatment, and disposal of waste through a sewer system
  • Sewage disposal plants
  • Sewage treatment plants or facilities
  • Sewer systems
  • Waste collection, treatment, and disposal through a sewer system

NAICS 221320 Crosswalk

Crosswalk between the North American Industry Classification System (NAICS) and Standard Industrial Classification System (SIC) --

Crosswalk between the North American Industry Classification System (NAICS) and International Standard Industrial Classification of All Economic Activities Code Revision 4.0 --

  • ISIC 3700 - Sewerage