Businesses in the construction of water projects build and upgrade infrastructure used to store, move, treat or manage water. Work can include reservoirs, dams, water-treatment and wastewater-treatment works, pumping stations, pipelines, sewerage systems, drainage networks, canals and flood-defence structures. Projects may serve homes and businesses, support agriculture or industry, or help manage river and coastal flood risk. Typical services include site preparation, excavation, groundworks, piling, concrete construction, pipe laying and the installation of pumps, gates, screens and other mechanical equipment. Contractors may also carry out repairs, refurbishment and extensions to existing assets, along with temporary works, environmental protection and testing before facilities are brought into service.