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A cleaning contractor and a manager responsible for issuing confined space entry permits were on Thursday (July 16) charged over alleged workplace safety offences after two workers died while carrying out tank cleaning works at Choa Chu Kang Waterworks in MaMOM charges contractor, manager over 2024 Choa Chu Kang Waterworks toxic gas incident
A cleaning contractor and a manager responsible for issuing confined space entry permits were on Thursday (July 16) charged over alleged workplace safety offences after two workers died while carrying out tank cleaning works at Choa Chu Kang Waterworks in May 2024.The Ministry of Manpower (MOM) said in a news release on Thursday that cleaning and maintenance contractor, Stargroup, was engaged by the national water agency to carry out tank cleaning operations at the plant.On May 23, 2024, a team of four workers from Stargroup and its subcontractor carried out cleaning works at a water treatment process tank.Three of them later collapsed after entering an enclosed passage beneath the tank to close hand valves that had been opened earlier to drain water from the tank.They were taken to Ng Teng Fong General Hospital where two workers later died on May 24 and 28, with the third worker discharged after receiving medical treatment.MOM said its investigations revealed that the workers had been exposed to hydrogen sulphide gas, a toxic gas that is typically emitted when sludge is drained from water treatment tanks. Read more











