SINGAPORE: The water supply in Singapore will not be affected by high ammonia levels in the Johor River, Singapore's national water agency PUB said in a Facebook post on Sunday (Oct 29).

Johor River Waterworks had to temporarily stop treatment operations at 11am on Saturday, PUB said.



While the water supply to Singapore and some parts of Johor was affected, PUB has stepped up production at desalination plants and local waterworks to meet demand.

Ammonia levels of 2.75 parts per million were recorded in the raw water on Friday night and three water treatment plants were closed down. Malaysia resident in Johor Baru, Kulai and Kota Tinggi were affected, The Star reported.

The ammonia pollution was traced to a chicken droppings processing factory close to the river.

Malaysia authorities have said that the factory, which uses manure from chickens to manufacture fertilizer, will be closed down.



PUB added that it is monitoring the raw water quality in the Johor River and will resume abstraction and treatment of raw water when the water quality is suitable.