SINGAPORE - An unmanned drone will soon be a common sight at six reservoirs here, as part of national water agency PUB's efforts to leverage technology for its daily operations. A drone will first be deployed at MacRitchie and Marina reservoirs at the end of this month, with four others to be deployed at Serangoon, Kranji, Lower Seletar and Lower Peirce reservoirs in the third quarter of this year. In a statement on Thursday (May 27), PUB said that the drones are equipped with remote-sensing systems and a camera for near real-time video analytics. These features allow the drones to help observe water quality and also monitor water activities like fishing and paddling. The six reservoirs were chosen based on the agency's operational needs, as well as other factors like the size and accessibility of the reservoirs and the presence of water activities, said a PUB spokesman. For instance, Marina and MacRitchie reservoirs are popular for fishing and water activities, and using a drone there will allow PUB to monitor such activities more effectively, the spokesman added. Currently, PUB officers conduct patrols daily, during which they look out for excessive growth of aquatic plants and a...