Slight water disruption expected in Klang Valley following odour pollution (updated)

PETALING JAYA: Water supply in the Klang Valley will face unscheduled disruptions Friday (April 17) after odour pollution was detected at the raw water source in Sungai Selangor last night (April 16).

Four water treatment plants were temporarily shut down and measures taken to flush out the contaminated water, Air Selangor Sdn Bhd (Air Selangor) said in a statement.

Although the water treatment plants resumed operations at 6.30am Friday, unscheduled water supply disruption is expected in seven regions following decreased water levels in the main reservoirs in the areas.

Air Selangor has announced that the water supply will be fully restored beginning noon Friday.

Air Selangor Sdn Bhd (Air Selangor) corporate communications head Abdul Halem Mat Som said the affected regions were Kuala Lumpur, Petaling, Klang and Shah Alam, Kuala Selangor, Hulu Selangor, Gombak dan Kuala Langat, involving 1,292 areas with 1.2 million households.

“The water treatment plants in Sungai Selangor (LRA), Phase 1 (SSP1), Phase 2 (SSP2), Phase 3 (SSP3) and Rantau Panjang had to be shut down at 11pm Thursday (April 16), following odour pollution detected at the raw water source in Sungai Selangor.

“However, swift action to release raw water through the alternative reservoir pumping operation (Opak) at Bestari Jaya has helped with the flushing out of contaminated water downstream of Sungai Selangor and no more odour pollution was detected at the intake source of all four water treatment plants, ” he said in a statement on Friday.

It is learnt that Selangor Environment, Green Technology and Consumer Affairs committee chairman Hee Loy Sian is visiting the Rantau Panjang treatment plant downstream this morning.

Air Selangor will give further updates on the areas of supply disruption through all communication channels such as Twitter, Facebook, Instagram and its website at

Consumers can also download the Air Selangor app on Google Play Store or App Store for the latest water supply update.

Air Selangor also called on consumers to use water prudently.

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