North American Industry Classification System (NAICS) Canada 2017 Version 1.0

• 23 - Construction
• 237 - Heavy and civil engineering construction
• 2371 - Utility system construction

23711 - Water and sewer line and related structures construction

This industry comprises establishments primarily engaged in the construction of water and sewer lines, mains, pumping stations, treatment plants and storage tanks. The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialized trade activities related to water and sewer line and related structures construction are included. The construction of structures (including buildings) that are integral parts of water and sewer networks (e.g., storage tanks, pumping stations, water treatment plants, and sewage treatment plants) is included in this industry.