PETALING JAYA: The Sungai Semenyih Water Treatment Plant was shut down for four hours earlier Thursday (June 23) after pollution was detected at one of its water intakes.
Selangor tourism, environment, green technology and Orang Asli affairs committee chairman Hee Loy Sian said, however, supply to consumers was not affected.
“Investigations carried out by the Selangor Water Management Board (Luas), National Water Commission (SPAN), Air Selangor and the Environment Department found that the main cause of the odour contamination was solvents.
“The odour pollution reading of one TON (threshold odour number) was detected at the Jambatan Ladang Bukit Unggul water intake at 10.15am," he said.
Hee added that the odour from samples collected at the site was similar to that from a nearby factory but samples will be sent to the Chemistry Department for further testing to determine if they are the same.
“The results will take between one and two weeks.
He added that the factory had been involved in previous pollution cases that caused two water disruption incidents over the past four years.
“Luas and the other agencies will make a police report and open investigations before we look at which laws can be used to take action.
“As a long-term solution, there is a suggestion to move the factory away as it has a big effect on Sungai Semenyih," he added.
