In a Facebook post, the water concessionaire said water supply recovery had reached 14.3% as of 9am and is expected to reach 40% by 8am on Thursday, 90% by 8pm, and 100% by 8am on Friday.
It said initially discoloured water usually occurs when disrupted water supply is restored, stirring the sediment that has settled in empty main pipes.
“Consumers who experience discoloured water supply are advised to run the tap water for five to 10 minutes until it is clear before consumption.
“If the water supply remains discoloured, please contact Air Selangor at 15300 or the help centre for our inspection and follow-up,” said the company.
Air Selangor also said it was mobilising water tankers to critical premises such as hospitals, clinics, dialysis centres and funeral service centres.
“Alternative water supply assistance has also been provided at 17 local service centres.”
Yesterday, Air Selangor said seven areas in the Klang Valley – Petaling, Klang, Shah Alam, Gombak, Kuala Lumpur, Hulu Selangor and Kuala Selangor – were experiencing unscheduled water disruptions due to the temporary shutdown of four plants following odour pollution.
Selangor public health and environment committee chairman Jamaliah Jamaluddin said the odour pollution detected at several rivers was believed to have been caused by a factory processing acrylic materials for recycling.
She said checks by the Selangor Water Management Board (Luas) found that effluent from a leaking tank had caused what was believed to be scheduled polymethacrylic acid waste to overflow into drains and ditches up to Sungai Kuang.
“Luas ordered the premises to stop the discharge of waste and carry out cleaning works immediately, as the pollution poses a risk to nearby water treatment plants, including Rantau Panjang which is 29.61km away, and SSP1, SSP2 and SSP3 located 34.02km away,” she said in a statement.
She also said Luas had opened an investigation paper under Section 79(1) of the Luas Enactment 1999, and that the parties involved face enforcement action from the environment department and Selayang Municipal Council.