Water costs vary depending on a number of factors and can change from year to year. View our Schedule of Tariffs, Miscellaneous and Other Charges 2025/26, and are based on our 2023-28 Water Plan.
All drivers must slow down to 40 km/h when passing stationary or slow-moving vehicles (under 10 km/h) that have flashing lights or sirens.
This includes:
• GWMWater vehicles with flashing lights
• Emergency vehicles
• Tow trucks
• Road maintenance vehicles
To find out information on this business case or to express an interest click here.
GWMWater is pleased to announce that its project, GWMWater's First Fully Off-Grid Facility, The Elmhurst Water Treatment Plant, has won the Infrastructure Project Innovation Award (Regional) at the 2025 Australian Water Awards.
For the latest update on the East Grampians Rural Pipeline, click here.
Construction of a new solar farm and battery at Nhill is now complete and has successfully connected to the electricity grid – supplying cheap renewable energy to power operations at Grampians Wimmera Mallee Water (GWMWater).
GWMWater is pleased to advise that the blue-green algae warning for Lake Lonsdale has been lifted.
Recent testing indicates that the water in the lake is safe for recreational activities, including swimming, boating, fishing and other water sports.
GWMWater will continue to regularly monitor the water quality at Lake Lonsdale.
To keep up-to-date with blue-green algae alerts at GWMWater’s reservoirs and lakes, please visit gwmwater.org.au/bga
GWMWater is a step closer to trialling a community energy initiative in Donald thanks to $400,000 in funding from the State Government.
Funding from the 100 Neighbourhood Batteries Program will support the water business to progress a Donald Community Power Plant Project.
In our latest issue of 
Tapping In Edition 4 2024/25 we share updates on the Nhill Renewable Energy Facility and the launch of our new Education Program!
Don't forget to enter our competition for your chance to win $100 off your account!
For Terms and Conditions, and past winners of our competitions please click here.
To view past Tapping In editions, click on the heading.
GWMWater has received a critical planning approval which will allow work to commence in zone four of the East Grampians Rural Pipeline Project.
Zone four will extend rural water supply to landholders in Willaura and Moyston.
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