This SEA was conducted on a plan already approved by the Quang Nam PPC and MOIT – the hydropower development plan for the Vu Gia – Thu Bon River Basin 2006-2010, a components of the overall power development plan for the province. When approved in 2006, the plan included close to 40 hydropower project proposals. By the time this SEA was completed the number of proposed projects had mounted to over 60, with proposals continuing to come in to the Quang Nam DOI. All eight large hydro projects need to be managed as multi-purpose use facilities for water – to avoid future situations of acute water shortages. This will involve a strategic and co-operative long term approach, and a tactical (day by day, week by week) procedure for reservoir water release operations.