What evidence supports Air Selangor’s report on Sungai Semenyih pollution?

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Evidence Supports Air Selangor's Report on Sungai Semenyih Pollution

Police are investigating the pollution of Sungai Semenyih which led to the temporary closure of the Sungai Semenyih Water Treatment Plant (WTP). Pengurusan Air Selangor Sdn Bhd (Air Selangor) filed a report against a factory engaged in heavy machinery maintenance, alleging it caused the river's contamination. Investigations have collected various samples from the scene and the factory premises for analysis.
Forensic Water and Factory Samples Collected

The Selangor Police Contingent Headquarters (IPK) forensic team conducted investigations at the site and collected five water samples. These samples were taken from the affected river, the water treatment plant, and from within the suspected factory. Air Selangor also provided a comparative sample to the investigating officer for matching purposes. These collected samples have been submitted to the Chemistry department for further analysis.
Effluent Discharge Identified Near Factory

Lembaga Urus Air Selangor (Luas) initiated an investigation after receiving information from Air Selangor regarding an odour pollution incident. Their inquiry focused on an area near a factory performing heavy machinery maintenance. The investigation revealed a discharge of effluent containing washing liquid and oil.
Suspected Contamination Route Identified

The discharged effluent, containing washing liquid and oil, is suspected to have entered Sungai Semenyih. It is believed to have flowed into a culvert approximately 1.5 kilometres upstream from the inlet of the water treatment plant. This suspected flow path links the factory's effluent discharge to the river pollution incident.

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What evidence supports Air Selangor’s report on Sungai Semenyih pollution?

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