North American Industry Classification System (NAICS) code 221310 is used by federal buyers for market research, set-aside size standards, and reporting. Official titles come from the Census Bureau NAICS structure.
Official definition
This industry comprises establishments primarily engaged in operating water treatment plants and/or operating water supply systems. The water supply system may include pumping stations, aqueducts, and/or distribution mains. The water may be used for drinking, irrigation, or other uses.
- Official title
- Water Supply and Irrigation Systems
- Code level
- 6
- Parent industry
- Water Supply and Irrigation Systems 22131
- Open opportunities
- 19 open · 101 active
SBA small-business size standard
$41M average annual receipts
Average annual receipts basis
Check this standard and its exceptionsExcluded or separately classified activities
Official Census cross-references identify activities that belong under another North American Industry Classification System (NAICS) code.
Establishments primarily engaged in installing lawn sprinkler systems are classified in Industry 238220, Plumbing, Heating, and Air-Conditioning Contractors;
Establishments primarily engaged in irrigation project construction (except lawn) are classified in Industry 237110, Water and Sewer Line and Related Structures Construction;
Establishments primarily engaged in lawn irrigation services are classified in Industry 561730, Landscaping Services;
Establishments primarily engaged in retailing bottled water are classified in U.S. Industry 445298, All Other Specialty Food Retailers; and
Government establishments primarily engaged in administering irrigation districts are classified in Industry 926130, Regulation and Administration of Communications, Electric, Gas, and Other Utilities.
Source and edition
2022 NAICS Manual definition and reference material from the U.S. Census Bureau.