Water Supply

**Exclusions/References:** - Units mainly engaged in - (a) the construction or repair of water storage dams, mains, pumping stations or water filtration plants are included in Class 3109 Other Heavy and Civil Engineering Construction; - (b) operating sewerage or drainage systems or sewage treatment plants are included in Class 2812 Sewerage and Drainage Services; - (c) the purification and bottling of water for retail sale are included in Division C Manufacturing; and - (d) operating irrigation systems are included in Class 0529 Other Agriculture and Fishing Support Services. **Primary Activities:** - Dam operation (water supply) - Desalination plant operation - Mineral water supply from the ground - Water distribution by pipeline - Water filtration plant operation - Water reservoir operation - Water supply for irrigation - Water supply pumping station operation - Water supply system operation