North American Industry Classification System (NAICS) Canada 2012
2213 - Water, sewage and other systems
This industry group comprises establishments primarily engaged in operating water, sewage and related systems.
22131 - Water supply and irrigation systemsUS
This industry comprises establishments primarily engaged in operating water collection, treatment and distribution systems for domestic and industrial needs. Establishments primarily engaged in operating irrigation systems are included.
22132 - Sewage treatment facilitiesUS
This industry comprises establishments primarily engaged in operating sewer systems and sewage treatment facilities that collect, treat and dispose of wastewater.
22133 - Steam and air-conditioning supplyUS
This industry comprises establishments primarily engaged in the production or distribution of steam and heated or cooled air.
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