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Water supply to be restored in 24 hours — minister

BESTARI JAYA (Oct 19): Water supply to about five million consumers affected by the closure of phases 1, 2, and 3 water treatment plants (WTPs) in Sungai Selangor as well as the WTP in Rantau Panjang due to pollution of raw water is expected to be restored in another 24 hours.

Environment Minister Datuk Seri Tuan Ibrahim Tuan Man said the incident was due to odour pollution, which caused the four WTPs to be closed early this morning but the situation had improved as at 1.30pm.

To overcome odour pollution, Tuan Ibrahim said the Selangor Water Management Authority released 285 million litres per day (MLD) from HORAS 600 and pumped 336 MLD of water from alternative ponds to dilute the water in Sungai Selangor.

"We are expecting the four WTPs to resume operations in another one or two hours, thereby restoring water supply to about five million consumers in 24 hours," he told a press conference after visiting the phase 2 WTP in Sungai Selangor here today.

Also present was Selangor Environment, Green Technology, Science, Technology and Innovation and Consumer Affairs Committee chairman Hee Loy Sian.

Tuan Ibrahim added that the Rantau Panjang WTP stopped operations at about 12.30am following a level-one threshold odour number (TON) pollution at the surface of the plant intake point while WTPs 1, 2, and 3 halted operations after odour pollution at level-three TON was detected at the surfaces of their intake points.

"Initial investigation by the authorities found solvent as the source of the odour pollution this morning.

"The smell of solvent was similar to the incident in early September, which is still under investigation," he said and added that the ministry had identified several industrial areas as the source of the pollution.

Tuan Ibrahim said the ministry has not ruled out the dumping of solvent by illegal factories operating around Selangor.

"If the factories hold licences issued by the ministry, they would be frequently inspected for compliance with the licensing conditions and for licence renewals," he said.

This morning, 1,196,457 Air Selangor accounts involving 1,292 areas in the Klang Valley again experienced water-supply disruption after four Sungai Selangor WTPs halted operations following pollution to the raw-water source.

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