The Wayaohui coal ash disposal site of the State Development and Investment Corporation’s Qujing Power Plant, in Baishui, Qujing, Yunnan province. This disposal site lacks retaining walls; coal ash is dumped freely and left to pile up. During the summer rainstorm season, these unprotected heaps of coal ash can easily collapse or even get entirely washed away. These kinds of disposal sites are quite common in southern China.