By Stephen Eisenhammer

Rivers of gold? Maybe not, but there can be money to be made in Chinese water systems.

With the world’s largest population rapidly moving from the countryside to the city, Chinese water supplies are becoming horribly polluted and the companies wading in to clean and purify them are set to benefit.

Investors are taking an interest in water cleaning companies which are supported by the Chinese government as the country attempts to avoid a dawning crisis.

China is under increasing domestic pressure to clean up its water supplies and is promising to invest 4 trillion yuan ($650 billion) on rural water projects between 2011 and 2020.

Fen Sung, senior investment manager at the asset management fund Premier, said cleaner water would be high on the agenda for the new Chinese leadership: