ICNEA 7721—Water pollution control

Where 7721 sits

1. N Water conservancy, environment and public facilities management industry
2. 77 Ecological protection and environmental governance industry
3. 772 Environmental governance industry
4. 7721 Water pollution control

What 7721 includes

• Refers to the comprehensive pollution control activities of rivers, rivers, lakes, reservoirs, groundwater and surface water, excluding the collection and treatment activities of discharged sewage.
• It includes the following water pollution control activities：
• Urban water treatment services: urban water garbage removal services, urban water garbage transportation services, urban water and grass cleaning services, urban water quality degradation treatment services, other urban water treatment services;
• River and lake governance services: river and lake garbage cleanup services, river and lake water and grass cleanup services, river and lake water pollution control services, and other river and lake governance services;
• Reservoir pollution control services: reservoir garbage cleaning services, reservoir aquatic plants cleaning services, reservoir water pollution control services, other reservoir pollution control services;
• Groundwater pollution control services;
• Water pollution control services;
• Adaptive dosing system for water treatment;
• Support the engineering of large-scale lake ecological governance and restoration technology;
• Comprehensive decision-making on the prevention and control of groundwater pollution, surface water-groundwater collaborative control;
• Other water pollution control services.

What 7721 excludes

• The activities of urban domestic sewage treatment and sewage treatment plants are included in 4620 (Sewage treatment and its recycling);
• Urban sewage discharge, included in 7810 (Municipal facilities management);
• Pollution control of marine waters, included in 7432 (Marine Environmental Services);
• The activities of the environmental protection administrative department are included in 9224 (Social affairs management agency).

7721 in other systems