Announced Allocations
Medium Priority
Allan Tannock Weir
Water Pricing
Fees and Charges 2021-2022
Fees and Charges 2020-2021
Fees and Charges 2019-2020

Scheme information


The Cunnamulla Scheme sources its water from the Allan Tannock Weir for irrigation and urban purposes.

How the scheme works
  • The weir is a sheet piling and concrete construction with a fixed crest spillway.
Water uses
  • Irrigation water for landholders along the ponded area of Allan Tannock Weir
  • Urban water supply for Cunnamulla.

Scheme Management

Sunwater aims to achieve the efficient delivery of water to customers in the Cunnamulla scheme that best meets their needs.  To manage this water delivery, arrangements for taking of water within the Scheme have been developed in consultation with its Irrigator Advisory Committee.

Taking water from the scheme

The water ordering system assists Sunwater in delivering water to its customers in an efficient and timely way, enabling them to plan and manage their water use.

Before taking any water, customers should place a water order so that Sunwater can release sufficient water and minimise losses.

Customers who take water without ordering may reduce Sunwater’s ability to supply customers who have ordered according to the above requirements.

To place an order

Customers can place their orders via:

Further information about ordering water is detailed in Cunnamulla’s Rules and Targets.

Stopping or restricting supply

Sunwater may suspend or restrict supply in a number of circumstances, including:

  • during maintenance of Sunwater’s assets
  • during a peak demand period, when rosters or rations may apply
  • when the demand for water is so small it is impractical to supply it
  • when there is a need to make special releases to maximise efficiency at times of limited supply
  • during rain shutdown
  • infrastructure limitations which make delivery impractical
  • if supply could cause Sunwater to break the law
  • when operating under special notices or regulations issued by the Department of Natural Resources and Mines {e.g. Water Amendment Regulation (No.3) 2006}.
Weather events and emergency shutdowns

Sunwater asks that customers notify their duty Water Officer, as soon as possible, of any rain event or other circumstances that substantially lessens their water requirements. When wide spread general rain exceeds 40 mm in a day over the Cunnamulla Water Supply Scheme, the duty Water Officer may shut the system down.

Customers are also asked to cancel orders if they no longer require ordered water.

For more information contact

If you experience an equipment or power failure emergency, please give immediate notice to Sunwater by calling Sunwater Customer Support on 13 15 89 (24 hours a day, 7 days a week).

Announced Allocations

Water Year: 2020/2021
Medium priority: 100% (previously 84%)

Announced Allocations effective 1 March 2021 and will be applicable until revised and communicated by Sunwater.

Customers are advised to obtain information about their remaining water allocation balance by accessing SunwaterOnline.

For more information or enquiries, phone 13 15 89 or email

History of Announced Allocations

AA History

Operational reports

Sunwater releases periodic operational reports detailing Announced Allocation levels and individual storages’ breakdowns within each scheme, the latest of which can be found below.

Operational Report

effective 1 March 2021

Operational Report

effective 1 October 2020

Operational Report

effective 1 July 2020

Operational Report

effective 19 February 2020

Operational Report

effective 1 October 2019

Operational Report

effective 1 July 2019


Service and Performance Plans

Sunwater prepares an annual Service and Performance Plan (S&PP) for each irrigation service contract area. S&PPs replace the former annual Network Service Plans and annual Performance Reports.
For further information about this service, please visit the Service and Performance Plan page.

Cunnamulla Bulk Supply

2022 Draft Service and Performance Plan


Cunnamulla Bulk Supply

2021 Service and Performance Plan

Cunnamulla Bulk Supply

2020 Network Service Plan


Scheme news

EOWY Newsletter



EOWY Newsletter



Scheme history

Water supply is vital to areas of the State’s south-west, supporting graziers and crops
Water supply is vital to areas of the State’s south-west, supporting graziers and crops.
Image courtesy of Natali Fogerty and Goondiwindi Regional Council

Cunnamulla Water Supply Scheme

Allan Tannock was a long-time resident of Cunnamulla and in his role as a stock and station agent he saw first-hand the ravages of drought and damage caused by flooding. The town’s weir on the Warrego River is named after him.

While only a relatively small piece of infrastructure in a sparsely populated region, the weir is vital for agriculture, town water and recreation. Built in 1991 with a storage capacity of 4770 ML, it serves fewer than 30 bulk customers, mostly farmers growing grapes and fodder crops.

It is, however, a drawcard for tourists who descend on the weir and the river to spot abundant birdlife and try their luck at fishing.