Manila, Philippines (BBN)- The Asian Development Bank’s (ADB’s) Board of Directors has approved a $1 billion financial support facility that will help improve clean water access for three million families in Viet Nam, including half a million poor households who will receive their own piped water connection for the first time.

The assistance is part of a nearly $2.8 billion investment program involving ADB, the Government of Viet Nam, development partners and water company financiers, an ADB announcement said on Tuesday.

The program will help water companies improve and expand clean water supply in some of Viet Nam’s largest cities through the installation of new pipelines and the repair and extension of existing networks. In addition to infrastructure improvements, the program will enhance the operational management and commercial viability of water companies.

Currently, four in every ten families living in Viet Nam’s largest cities are not connected to a central water supply system, and only one in three towns have any form of piped water supply.

Many piped water systems in urban areas urgently need upgrades, with as much as 30 percent to 40 percent of water lost before it reaches the end consumer, due foremost to leaky pipes. Water loss contributes to intermittent service from low pressure.

One goal of the water investment program is to reduce water loss in urban areas to less than 20 percent by 2020, bringing Viet Nam’s cities in line with affluent Asian cities such as Seoul.

ADB is providing $138 million for the program’s first project in Ho Chi Minh City, where many poor households are not yet connected to piped water systems, and are paying almost twice the official water tariff.

The Ho Chi Minh City project, which will be implemented by the Saigon Water Corporation, will improve pressure and coverage for over half a million city residents, and provide almost 20,000 families with their first household water connections. The project is expected to increase water availability in Ho Chi Minh City to over 64 million cubic meters per annum over the next decade.

BBN/SSR/AD-22Feb11-2:19 pm (BST)