The increase in water demand coupled with severe monsoon flooding from 2009 to 2011, triggered a mass restoration of the ancient water system. Socheata Heng, who owns a guesthouse on the outskirts of Siem Reap, recalled the 2011 floods – the province's worst in 50 years. "It caused so much damage," she said. "Crops were destroyed, communities had to be evacuated and the water came pouring into my guesthouse. It was devastating."