Bad odour: The water treatment plant at Sungai Johor was closed temporarily due to ammonium pollution at Sungai Johor, which led to a lower water reserve margin and water disruptions in the area. — Bernama
PETALING JAYA: Selangor’s big water problems stem from the fact that it has a very low water reserve margin.
The water reserve margin is the difference between the production capacity of water treatment plants and the usage.