ANOTHER water pollution was detected at the alternative water resource pond outlet named KL-Larut, which channels water into Sungai Selangor.
Located in Bestari Jaya, the pollution there was detected by the Air Selangor Sdn Bhd (Air Selangor) team at 11.20am on Monday (April 27).
Patches of oil were detected in the water and it is believed that the oil is hydraulic oil discharged by a nearby factory.
A site visit by Lembaga Urus Air Selangor (Luas) officers found that the iron factory had stopped operations since the movement control order (MCO) took effect on March 18.
A check there further showed empty oil barrels and a pool of used oil waste on site.
"We immediately fixed an oil-boom and oil-pad at the respective drainage nearby to prevent the remaining oil from flowing into Sungai Selangor.
"Air Selangor on the other hand, fixed oil-booms at Sungai Selangor Fasa 1 (SSP1), Sungai Selangor Fasa 2 (SSP2), and Sungai Selangor Fasa 3 (SSP3) water treatment plants," said Luas in a statement.
Indah Water Konsortium Sdn Bhd (IWK) is also in the process of removing the oil waste from the water.
Luas has also requested the factory owner to install an oil barrier at their diesel storage tank to reduce the risk of future spillage.
A notice has also been issued by the Selangor Environment Department to the owner to store all empty oil barrels in an enclosed area.
"Thanks to this close monitoring and fast response, the treatment plants did not have to be shut," said Luas.
Last week, two other pollution incidents were detected at Sungai Langat thanks to a round-the-clock surveillance at the river.
Had it gone undetected, these two incidents would have caused the Sungai Semenyih water treatment plant to shut down and cause water supply disruption to millions of residents in Klang Valley.
The first contamination detected was an increase of ammonia at Sungai Pajam, believed to be caused by a fish farm nearby while the second is green-coloured water flowing into the drains of the Hi-Tech 6 industrial area before entering Sungai Semenyih believed to be caused by a printing factory.
Meanwhile, on April 17, there was an unscheduled water disruption in several areas in the state due to odour pollution caused by a fish farm which was illegally operating on government land.
The fish farm was then demolished by Luas and its operators were told to carry out pollution control and rehabilitation works at the site.
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