Semenyih water treatment plant resumes operations after three consecutive 0 TON readings

PETALING JAYA: The Sungai Semenyih Water Treatment Plant (WTP) has begun operating again after three consecutive zero threshold odour number (TON) readings were recorded at its raw water source, says Air Selangor.

However, it did not give any indication when water supply would be fully restored.

"Air Selangor would like to announce that a reading of 0 TON was recorded three times in a row at Sungai Semenyih as at 6am Saturday (Sept 4)," it said in a tweet posted at 7.38am Saturday.

Air Selangor also said that it was in the process of resuming water treatment operations at the WTP.

On Friday (Sept 3), Air Selangor had announced that 463 areas in five regions in the Klang Valley would experience unscheduled water disruptions due to a shutdown of the Sungai Semenyih WTP, following odour pollution.

“The Sungai Semenyih WTP had to be shut down at 5.15pm on Friday (Sept 3), following an odour pollution incident detected in the Sungai Semenyih raw water source,” Air Selangor had said in a Facebook post.

“The disruption will affect five regions - Petaling (172 areas), Hulu Langat (54 areas), Sepang (194 areas), Putrajaya (23 areas) and Kuala Langat (20 areas).”

The post did not indicate when the water supply would resume.

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