Lembaga Urus Air Selangor ( LUAS) stated that they received complaints around 4.30pm on Sep 4 that Sungai Semenyih and Sungai Langat were with the trace of the smell of carcasses.
A total of 309,687 consumer accounts in the Petaling, Hulu Langat, Kuala Langat and Sepang districts suffered unscheduled water supply disruptions due to the shut down of the two water treatment plants.
Bau seakan2 bangkai. Punca dikenal pasti di sekitar kawasan perindustrian Sg Batang Benar, Negeri Sembilan. Lokasi sebenar masih sedang disiasat. pic.twitter.com/4gHPWY2v06
— Dato' Sri Tuan Ibrahim Tuan Man (@titm_official) October 4, 2020
LUAS posted the statement on social media yesterday, that water sample taken from Sungai Semenyih measured at 4 TON (threshold odour number) while Bukit Tampoi measured 3 TON at 4.30pm yesterday.
According to The Star, Environment and Water Minister Datuk Seri Tuan Ibrahim Tuan Man said water sample taken from Sungai Semenyih at 9 pm it had increased to 11 TON.
“So it is difficult for us to predict whether it (TON) will increase further, as long as the root cause has not been identified and stopped. The colour (of the river water) is also turning murky,” he said.
“Currently, we have to wait for the odour pollution to subside before the plant can operate again. As of now, we are not sure how long (it will take) because we are still investigating the cause,” he said.