Water treatment plants still closed

THE Cheras 11th Mile water treatment plant in Hulu Langat and the Salak Tinggi water treatment plant in Kampung Ginching, Sepang, are still closed after ammonia contamination incidents that occurred eight days apart.

Operations at the Salak Tinggi plant halted on July 6 while the Cheras 11th Mile plant was shut down on July 14, affecting 20,000 consumers. Puncak Niaga (M) Sdn Bhd operates both plants.

However, disruptions to water supply were minimal as water to the affected areas were supplied instead through the Sungai Semenyih and the Sungai Langat treatment plants.

The Salak Tinggi plant supplies water to Kampung Ginching, Kampung Labu Lanjut, Kampung Salak Tinggi, Ginching Hulu, Ginching Hilir, Kampung Lembah Paya and Pekan Salak, while the Cheras 11th Mile plant supplies water to Balakong and Cheras.

When contacted, Kampung Baru Batu 11 Cheras Federal Village Safety and Development Committee (JKKKP) chairman Raymond Chen said there were a few complaints from residents in the new village.

“Residents said the water pressure dipped at night and stayed that way for a few hours but they were able to cope,” he added.

In contrast, Taman Indah Phase 2 residents said they had been plagued with low-water pressure problems even before the Cheras 11th Mile water treatment plant closure.

Taman Indah Phase 2 Residents Association vice-president Datuk Hamzah Dol Mat said he resorted to taking showers downstairs as the water pressure was too low for the upstairs bathrooms.

Another resident, only known as Tan, said the water often trickled from pipes and that pressure used to be good.

Kajang municipal councillor Lee Ah Seng said pressure was also low in parts of Balakong.

The source of contamination at the Salak Tinggi plant has been identified as industrial effluent from the Nilai Industrial Area dumped into Sungai Nilai which merges with Sungai Labu, the raw water source for the plant.

In the case of the Cheras 11th Mile plant, high ammonia levels were detected in the raw water supply from Sungai Langat.

Meanwhile, a source said routine checks at the intake points still showed high ammonia content.

With no rain in Cheras, there is little chance of diluting the potent concentration of ammonia.

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