Maintaining water quality to protect benefits
Maintaining water quality to protect benefits
Wastewater
(Domestic/Industrial/Agricultural)
Wastewater
(Domestic/Industrial/Agricultural)
Waterfront cities
Waterfront cities
"Life Below Water"
"Life Below Water"
What’s new in WEPA
Recent Activities
WEPA Partners
Water Environment Partnership in Asia (WEPA)
WEPA is a network sharing knowledge among 13 countries in Asia. The programme was established in 2004, aiming to improve the water environment in Asia by providing partner countries with relevant information and knowledge to strengthen water environmental governance.
Recent Publications
Pickup Country
Thailand
Based on geographical characteristics, Thailand can be divided into 25 river basins. The total volume of water from rainfall in all river basins is estimated at more than 800,000 million m3, of which 75% is lost through evaporation, evapotranspiration and infiltration, and the remaining 25% constitutes the runoff that flows into the rivers and streams. Of these water resources, groundwater is important as it supplies 20% of public water supply and 75% of domestic water. The groundwater system is mainly recharged by rainfall of about 40,000 million m3 and seepage from rivers. It was estimated from previous hydrological balance studies that about 12.5 to 18% of rainfall reaches aquifers.