The Dniester River covers about 57% of the country. It rises in Ukraine and forms the border between Ukraine and Moldova.
The Danube River basin covers about 35% of the country. The Prut River, a tributary of the Danube, rises in Ukraine and forms the border between Moldova and Romania before flowing into the Danube.
According to National Scientific-Practical Centre of Preventive Medicine 47% of the population has no access to safe drinking water and 54.8% of the population has no access to drinking water supply system mostly in small settlements in rural areas.
There are few natural lakes in Moldova. The largest one is Lake Beleu in the Prut valley with a surface area of 6.3 km2. There are 2,519 artificial ponds in Moldova, constructed for irrigation purposes, flow regulation, and fishing pools.