NAICS Code Description

221320 - Sewage Treatment Facilities

*Click to View Top Businesses by Revenue for 221320 – Complete Profiles*.

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.
Index Entries for 221320
221320221320221320Collection, treatment, and disposal of waste through a sewer system
221320221320221320Sewage disposal plants
221320221320221320Sewage treatment plants or facilities
221320221320221320Sewer systems
221320221320221320Waste collection, treatment, and disposal through a sewer system

Top Businesses by Annual Sales for 221320 – Click for Complete Profiles:

DC Water and Sewer AuthorityWashingtonDC
Metroplitan St Louis Sewer DstSaint LouisMO
Hampton Roads Sanitation DstVirginia BeachVA
Louisville/Jefferson Co SewerLouisvilleKY
Water Solutions Holdings LLCCanonsburgPA
Metro Wstwater Reclamation DstDenverCO
Jersey Cy Mncpl Utilities AuthJersey CityNJ
Renewable Water ResourcesGreenvilleSC
Veolia Wtr N Amrca-Central LLCBostonMA
Alderwood Wtr & Waste Wtr DstLynnwoodWA