Global Environment Centre (GEC) river care coordinator Dr K Kalithasan, meanwhile, said through the ROL-POP 5 initiative, his organisation has been educating the public to get to know their ‘river address’ based on the map and location of their residence. It’s important for the people to get to know their river address, particularly those living near rivers. They must know where the source of their water supply is and where the wastewater from their homes flows into.