DAILY TESTING OF WATER SAMPLES
To ensure water remains clean when it reaches households, PUB collects and tests samples daily from areas like Housing Board estates.
Building owners and town councils are required to ensure that rooftop storage tanks in their premises are properly looked after, including engaging licensed plumbers to conduct annual inspections, cleaning and certification.
“It’s important for us to ensure that these rooftop water storage tanks are properly maintained and kept in good condition to prevent contamination,” said Ms Yunita Tan, general manager of Lower Seletar Waterworks.
After PUB collects water samples, these are sent to the agency’s water quality laboratory where scientists test for indicators like acidity or the pH level, chlorine, and bacteria or E. coli levels, among others.
More than 500,000 tests are conducted yearly with the help of technology to improve data accuracy. These identify any potential issues affecting the country’s water supply.