In 1999, per capita domestic consumption in Penang was 255 litres/capita/day (LCD). In 2020, it reached 299 LCD. In comparison, the national average was 240 LCD in 2020. There is a direct correlation between high per capita domestic consumption and low domestic tariffs for the first 35,000 litres per month. PBAPP’s average tariff for this band of domestic consumption (as at May 2021) is RM0.32 per 1,000 litres, as compared to the 2018 national average of RM0.71 per 1,000 litres (Malaysia Water Industry Guide 2019).