A scientific committee that advises state and federal governments on coal mines has warned that South32's revised proposal to expand its Dendrobium project will still have severe and irreversible impacts.
Under a worst-case scenario, it will take Engie 35 years to fill the Hazelwood coal mine pit with water, but the company is aiming to do it over 10 to 20 years, new documents show.
Sydney Water breached an environmental obligation and a duty of care by allowing treated effluent to erode downstream creek banks, the Chief Justice of NSW's environment court has held.
Regulations that require new developments to have "no net impact" on water quality in Great Barrier Reef catchments have survived a disallowance motion.
A utility is seeking EPA approval to install water recycling technology never before used in Australia in a housing estate that will consume 70% less potable water than a typical development and use half the energy.