This is a relatively new conservation measure, and several councils are watching the outcome of this plot project closely.1 In addition, there are many projects on implementing new water policies in different programmes, especially in the field of synergy between water and spatial planning. These projects are part of research programmes but are executed by consortia in which ministry, provinces, municipalities and the private sector are working together on new practices. In Korea, public facilities and public residential complexes are encouraged and some municipalities voluntary recycle rainwater by using rainwater management facilities. On the one hand, the basin perspective makes it easier to integrate physical, environmental, social and economic influences on water resources. On the other hand, the decentralisation of water governance has increased the number of relevant (administrative) boundaries and organisations.