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The Top500-Lexicon

The lexicon of the top500 ( The Encyclopedia for Classification Codes ) explains the codes and definitions in the world of economical classifications.

NAICS Code 221320 Sewage Treatment Facilities

The NAICS Code 221320 is described as
Sewage Treatment Facilities
  • 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

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

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.


It belongs to the code group
NAICS Code 22132 (Inofficial Code)

To this Code "221320" belongs the sub codes
(No direct sub codes available)

The equivalent ISIC Code (Rev. 3.1) is
9000: Sewage and refuse disposal, sanitation and similar activities
  Assainissement et enlèvement des ordures; voirie et activités similaires

The nearest NACE Code (Rev. 1.1) is
90.01: Abwasserbeseitigung - Abwasserbeseitigung
90.01: Collection and treatment of sewage - Collection and treatment of sewage
90.01: Collecte et traitement des eaux usées
90.01: Raccolta e depurazione delle acque di scarico
90.01: Recogida y tratamiento de aguas residuales
90.01: Afvalwaterinzameling en -behandeling
90.01: Opsamling og behandling af spildevand

The equivalent CPC Code (Rev. 1.1) is
xxxx: No Code defined

Translation of the Code description
221320: Sewage Treatment Facilities

Alternative Spellings (synonyms): Facility
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