There are three key water storage facilities located in the Australian Capital Territory.The fourth source of water for Canberra, Googong Dam, is in NSW.In addition, there are four smaller man-made reservoirs used for recreation and as traps for sediment and fertilizers .This does not include privately owned off-stream storage sites used for water harvesting.As of 2015[update], 44 per cent of all the dams in Tasmania were constructed for the purpose of generating hydro-electricity.