Hanoi, April 16 -- Vietnam will need to invest 20-30 billion USD on water supply and drainage to make sure that 100% of the population has access to clean water , according to experts.

The Ministry of Natural Resources and Environment forecasts that water use demand by 2030 is about 122.47 billion cubic metre per year.

Urban development, discharge of untreated industrial wastewater, and use of fertilisers and pesticides in agriculture, are putting great pressure on river basins, affecting clean water sources. This is particularly the case for large cities where clean water sources are a concern.

Chairman of the Vietnam Water Supply and Sewerage Association Nguyen Ngoc Diep said Vietnam is a water-abundant country but it still confronts...