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--
| Go to: | No change 2002 to 2007 | No change 1997 to 2002 | 2002 Economic Census and other data sources |
| 2007 NAICS | 2002 NAICS | 1997 NAICS |
Corresponding Index Entries |
|---|---|---|---|
| 221320 | 221320 | 221320 | Collection, treatment, and disposal of waste through a sewer system |
| 221320 | 221320 | 221320 | Sewage disposal plants |
| 221320 | 221320 | 221320 | Sewage treatment plants or facilities |
| 221320 | 221320 | 221320 | Sewer systems |
| 221320 | 221320 | 221320 | Waste collection, treatment, and disposal through a sewer system |
