The State of Kelantan seems to be having a huge problem converting raw river water into clean drinking water to end consumers that meet international standards. However, this is not a question of luxury but a necessity given the demands of the growing population. It is a basic need of everyone. This is why it is very important to plan & manage these natural resources well.
Image source: Ahmed, Minhaz & Mokhtar, Mazlin & Alam, Lubna & Mohamed, Che Abd Rahim & Choo Ta, Goh. (2019). Non-carcinogenic Health Risk Assessment of Aluminium Ingestion Via Drinking Water in Malaysia. Exposure and Health. 11. 10.1007/s12403-019-00297-w.