Water. It’s the most precious resource on earth. As the largest manager of water in Australia, we know first hand just how vital it is.

Hydro Tasmania has a responsibility for 45 of Tasmania’s major lakes and at least 1200 km of natural creeks and rivers are influenced by our hydropower operations in some way.

That’s why we’re fully committed to the sustainable use of this shared resource.

It’s a natural balance

In practice, this means actively looking after our waterways, as well as maintaining a workable balance between electricity generation and other needs, including:

  • irrigation
  • town water supply
  • aquaculture
  • recreational use
  • angling
  • aesthetics
  • in-stream biota
  • aquatic habitat

That way, people can enjoy the beauty of our lakes and rivers today and for many years to come.

Want to know more?

Find out how we manage environmental water issues >

Find out why water levels change so often in hydro-electric lakes, in our 'what's that about' factsheet series >

If your property borders a Hydro Tasmania lake or waterway and you would like to know of any unusual changes in water level, please let us know your details by emailing us at hydro.engagementteam@hydro.com.au.

You can also update your details at any time by emailing or calling us on 1300 360 441.

View the terms and conditions for use of the information made available in the Water section of this website > Terms and conditions for use of Hydro Tasmania’s Published Water Information 


River flows and lake levels can change rapidly in Tasmania, because of rainfall and inflows throughout the state and the operational requirements of hydropower stations.

Hydro Tasmania is unable to guarantee or provide predictions about river flows or lake levels.

People using rivers and lakes for recreation should exercise caution.