Since 2011, up to half of Perth's drinking water in Western Australia has come from desalination (https://www.watercorporation.com.au/Our-water/Desalination htt

Since 2011, up to half of Perth's drinking water in Western Australia has come from desalination (https://www.watercorporation.com.au/Our-water/Desalination https://www.watercorporation.com.au/Our-water/Desalination). They setup solar and wind farms at the time to offset the energy required and to my knowledge there's never been any environmental issues with the brine discharge. They also recycle water here by treating wastewater and pumping it into the ground water where it blends in with water in the aquifer - some of which is later extracted. They pump into the aquifer rather than directly into the water supply because people had an "ick factor" about drinking treated wastewater regardless of how filtered it is.