The Department of Construction of the northern port city of Hai Phong has proposed an investment capital estimated at over VND25 trillion (over $958.7 millon) to construct and upgrade infrastructure systems and centralized clean water production plants from now until 2040.

The goal is to ensure a stable clean water supply for residents and address the issue of over 25% of the suburban population still relying on substandard mini water plants.

An assessment by the City Department of Health found that 94.4% of the rural population currently uses water from water plants, with 20% relying on mini water plants that operate at moderate to poor standards.

Additionally, 5.6% use water from small-scale sources where quality is not monitored.

To improve water infrastructure, Hai Phong plans to construct two new water plants—the Le Thien Water Plant in An Dương district and the Luu Kiem Water Plant in Thuy Nguyen city—while increasing the capacity of 10 existing water plants from 436,150 m³/day to 1,349,600 m³/day.

The Vinh Bao 2 Water Plant will be converted into a booster pumping station, and a synchronized water supply system will be built for Cat Hai island, with a total estimated cost of over VND4.848 trillion (nearly $186 million).

The Construction Department also proposes allocating around VND2.387 trillion ($91.5 million) to build a network of 23 booster pumping stations, ensuring sufficient water resources for densely populated areas and industrial zones.

To further safeguard water quality, Hai Phong will invest in constructing salinity control dams on the Thai Binh, Van Uc, Lach Tray, and Hoa rivers to prevent saltwater intrusion and secure freshwater sources upstream.