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3701 Water Supply This class consists of units mainly engaged in the storage, purification or distribution of water, by pipeline or carrier. It includes the operation of irrigation systems concerned with the supply of water to the farm, and the supply of steam or hot water. Exclusions / References
(b) the construction or repair of water storage dams, mains or pumping stations are included in Class 4122 Non-Building Construction n.e.c.. Dam operation (water supply); Desalination plant operation (water supply); Filtration plant operation (water supply); Mineral water supply (from the ground); Pumping station operation (water supply); Reservoir operation (water supply); Water supply system operation 3702 Sewerage and Drainage Services This class consists of units mainly engaged in operating sewerage or drainage systems or sewerage treatment plants. Exclusions / References Primary Activities
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