Only 28 per cent of industrial zone workers are provided with stable accommodation, while the rest have to rent houses with poor sanitation and infrastructure.
Tighter regulations are needed to ensure good quality water is sourced for years to come.
The city People’s Committee chairman Nguyễn Đức Chung told a hearing of the municipal People’s Council on Wednesday that the tap water issue was a matter many Hanoians cared greatly about.
Việt Nam had targeted breakthroughs in three prioritised areas this year but efforts have fallen short.