A more recent edition of NAICS is available.
2017 Edition

national industry 221320

Sewage Treatment Facilities

Overview

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

The immediate parent of national industry 221320 is international industry 22132: Sewage Treatment Facilities

2017 NAICS Edition Cross References

  • 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.

Sub-Descriptions

  1. 221320 - Collection, treatment, and disposal of waste through a sewer system
  2. 221320 - Sewage disposal plants
  3. 221320 - Sewage treatment plants or facilities
  4. 221320 - Sewer systems
  5. 221320 - Waste collection, treatment, and disposal through a sewer system

History

The NAICS editions in which this code was present are indicated below. In the event that a code was changed from the prior edition the equivalent value in that edition is provided for reference.

Edition Existed Equivalent Value
2002 221320
2007 221320
2012 221320
2017 221320
2022 221320

Standard Industrial Classification (SIC) Mappings

  1. 4952 - Sewerage Systems

Insurance Industry Mappings

The US Property and Casualty Insurance Industry may use the following classification descriptions which might encompass national industry 221320, Sewage Treatment Facilities:

  1. municipal sewer system existence
  2. municipal sewer system operation
  3. pipeline operation non flammable
  4. pipeline operation non flammable utility
  5. sewage disposal plant operation
  6. sewage disposal plant operation not otherwise classified
  7. sewage treatment facility
  8. sewage treatment plant
  9. sewer
  10. sewerage system
  11. utility
  12. water sewage and other system

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