Oil-based waste blamed for pollution at water treatment plants

SHAH ALAM: The disposal of oil-based waste is suspected to be the cause of the odour pollution which forced a temporary shut down of Sungai Selangor Water Treatment Plants; Sungai Selangor Phase 1, Phase 2 and Phase 3 Water Treatment plants as well as the Rantau Panjang Treatment plant downstream.

Selangor Environment, Green Technology and Consumer Affairs committee chairman Hee Loy Sian said investigations by the Selangor Water Management Authority found that oil-based waste was found in the inlet chamber of Indah Water Konsortium’s (IWK) regional sewage treatment plant in Batang Kali, Hulu Langat.

“It was discovered at about 7am this morning when the investigation found that there was a layer of oil in the chamber of the plant. “The IWK had to close the inlet at around 9 am for cleaning this evening,” he said today.

He said the oil-based waste was believed to be dumped illegally from the nearby industrial area of the plant.

Hee said Air Selangor Sdn Bhd used six tonnes of active carbon to control the pollution.

“So far, LUAS and all relevant parties are working together to address this issue promptly,” Hee said.

It was earlier reported that all the water treatment plants involved were back to being fully operational this morning.

Yesterday, 1,133 areas in Kuala Lumpur, Petaling, Klang, Shah Alam, Kuala Selangor, Hulu Selangor, Gombak and Kuala Langat were affected by water disruptions.