Outlook on Singapore’s Water Adequacy and Possibility of Water Rationing Exercises

As the Member rightly pointed out, some cities in the region have conducted water rationing in recent months. In Thailand, rice farmers were affected by the worst drought in a decade and were forced to queue up for water for irrigation. In the Philippines, residents of Metro Manila faced water supply interruption due to falling dam water levels. In Malaysia, water rationing was conducted in certain parts of Johor in September and October, as several dams were affected by critically low water levels due to dry weather.

Singapore has also been affected by the dry weather from July to September. The water level at Linggiu Reservoir fell below 50% in September 2019, as PUB had to discharge more water from the Linggiu Reservoir to supplement water flowing in the Johor River, in order to meet the total abstractions of both Malaysia and Singapore from the Johor River. If the Linggiu Reservoir fails, the Johor River may suffer low water levels, which will compromise Singapore's right to abstract our full entitlement of 250 million gallons of water per day under the 1962 Water Agreement. So, if the Linggiu Reservoir water levels fall, Johor River may suffer low water levels. We are following up with Malaysia on identifying appropriate and timely measures, including additional schemes, to increase the yield of the Johor River. In Singapore, Members may also recall photos on social media showing the falling water levels at the Botanic Gardens Eco Lake and Bedok Reservoir due to the dry spell.

That said, there has not been a need for nationwide water rationing in Singapore since 1964. This did not happen by chance. Over the years, Singapore has developed a robust and diversified supply of water, as a result of our early and consistent investments in water infrastructure and research and development. We have augmented our water supply with weather-resilient sources, namely NEWater and desalinated water. Along with water from local catchment and imported water, they make up Singapore's "Four National Taps". However, the production of NEWater and desalinated water is energy intensive and costly. While PUB continues to invest heavily in technology to reduce the energy consumption, we call on everyone to use water prudently and avoid wastage.

To drive home the water conservation message, PUB conducts water rationing exercises with schools and the community. Earlier this March, over 100 schools undertook water rationing exercises in support of the GoBlue4SG movement, as part of the Singapore World Water Day celebration. In addition, PUB has been encouraging homes and industries to use water more efficiently, including the use of more efficient fittings and appliances, implementing water recycling projects and adopting water conservation practices. PUB refreshed its "Make Every Drop Count" campaign to profile the hard work involved in water treatment and to remind Singaporeans that every drop of water must be used wisely. The sustainability of our water resources can only be assured if all of us treat water as a precious resource and are committed to save water as a way of life.

With climate change, Singapore has and will experience more extreme weather patterns, and prolonged dry spells will affect us. Even as the Government continues to invest in infrastructure and technologies to tackle the challenges posed by climate change, everyone must play their part to conserve water. Together, we can "Make Every Drop Count".