This industry comprises establishments primarily engaged in operating sewer systems or sewage treatment facilities that collect, treat, and dispose of waste.
The North American Industrial Classification System (NAICS) code for Sewage Treatment Facilities is 221320. Included in this industry are:
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
Cross-References. Establishments primarily engaged in
Operating waste treatment or disposal facilities (except sewer systems or sewage treatment facilities) - classified in Industry 56221, Waste Treatment and Disposal;
Pumping (i.e., cleaning) septic tanks and cesspools - classified in U.S. Industry 562991, Septic Tank and Related Services; and
Cleaning and rodding sewers and catch basins - classified in U.S. Industry 562998, All Other Miscellaneous Waste Management Services.
Information courtesy of the U.S. Census Bureau.
