NAICS Code Description

221320 - Sewage Treatment Facilities

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

DC Water and Sewer AuthorityMetro Water Recovery
Hampton Roads Sanitation DstRenewable Water Resources
Metroplitan St Louis Sewer DstVeolia Wtr N Amrca-Central LLC
Sewerage & Wtr Bd New OrleansAlderwood Wtr & Waste Wtr Dst
Louisvlle Jffrson Cnty Rgnal SDelaware Cnty Rgnal Wtr Qlty C

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;
  • Operating water treatment plants and/or operating water supply systems--are classified in Industry 221310, Water Supply and Irrigation Systems;
  • Pumping (i.e., cleaning) cesspools, portable toilets, and septic tanks or renting portable toilets--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
221320221320221320221320Collection, treatment, and disposal of waste through a sewer system
221320221320221320221320Sewage disposal plants
221320221320221320221320Sewage treatment plants or facilities
221320221320221320221320Sewer systems
221320221320221320221320Waste collection, treatment, and disposal through a sewer system