Singapore, 7  Feb  2017 PUB, Singapore’s national water agency, put up a Request for Proposal (RFP) today for the development of Singapore’s fifth desalination plant. To be built on Jurong Island under a Design-Build-Own-Operate (DBOO) arrangement by 2020,the plant will  add  another 137,000  cubic  metres,  or  approximately 30 million  imperial gallons of desalinated water (mgd) a day to Singapore’s water supply, enhancing water supply resilience.