Gwydir Valley Irrigators Association

The Gwydir Valley Irrigators Association (GVIA) represents in excess of 400 water entitlement holders in the Gwydir Valley.

Our water entitlement holders are some of the most progressive in the world, actively engaged in, and innovating irrigated agriculture. From broadacre crops such as cotton to tree crops such as pecans, oranges and olives, our industry is diverse and productive. We are all acutely aware that reliability of water in the valley is low, and thus strive to Make Every Drop Count for the producer, the community and the environment.

Our vision is for the local irrigation industry, the environment and the Gwydir Valley community to have a secure, vibrant future, with the GVIA recognised as an industry leader.

The Gwydir Valley, centred around the town of Moree in north west NSW is an extremely productive agricultural region. Agriculture employs 20-30% of the population and contributes an estimate 7.8% of NSW’s total agricultural production. Irrigated agriculture is particularly important, contributing significantly to the social and economic wellbeing of the region.


Read more about The Gwydir Valley »

Latest DAM Capacity


Water Allocations

The Gwydir River System



The irrigated olive industry was initiated in the Gwydir Valley over 25 years ago. Olives are a vertically integrated industry with the nationally recognised Gwydir Grove Olives the largest local producer and processor. In recent years the number of olive trees has declined as some producers have switched from olives into pecans.

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Oranges are a new irrigation industry in the Gwydir Valley, with the majority of the trees planted since 2005. It is currently expanding with an expected area of 350Ha to be under production by 2020. The citrus industry in the Gwydir Valley is part of the locally owned and vertically integrated Grove Juice business.

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The pecan industry is an important irrigation industry for the Gwydir Valley. Trawalla, owned and operated by Stahmann Farms is the largest in the region producing approximately 90% of Australia’s pecans. Australia is the fourth largest global producer of pecans. Stahmann Farms operate the country's only commercial pecan shelling, value-adding and packing plant.

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Broadacre Cropping

The Gwydir Valley is a diverse broadacre cropping region producing a range of both summer and winter crops. The primary winter crops include; chickpeas, wheat, barley, and more recently canola. While summer plantings include sorghum, faba beans, mung beans, maize and sunflowers. The majority of the broadacre cropping area is dryland.

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Cotton is the most significant irrigated crop in the Gwydir Valley with an average of 70,000Ha. It is also an important dryland crop with an average of 79,000Ha annually. The area planted can fluctuate from year to year, being dependant on either available irrigation water and seasonal rainfall.

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Lucerne and Hay are niche crops in the Gwydir Valley covering an estimated 4,500Ha. Lucerne is produced primarily on smaller blocks and is irrigated by bore water entitlements. Hay production includes Lucerne, cereals and pastures.

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The turf industry has been a part of the irrigation industry of the Gwydir Valley for almost 20 years, but there are only two producers in the valley. It covers a very small area of only 20Ha and is irrigated by bore water entitlements. The primary species produced is Buffalo.

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The Gwydir Wetlands

The Gwydir Wetlands are a system of terminal delta wetlands, located downstream of the Gwydir River approximately 45kms west of Moree in north west NSW. They are recognised for their unique vegetation and bird breeding potential. The wetlands are estimated to consist of approximately 6,829Ha of semi-permanent wetland and 77,949Ha of floodplain wetland.

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Gwydir River - Gravesend Monitoring Gauge

WaterNSW monitor 51 river gauge locations in the Gwydir River and streams(418) using telemetry with data accessible in real time. These sites collect a range of information from flow rate, discharge volume and river heights and assist WaterNSW in their role of water delivery operators whilst providing an indication of water availability.

Water NSW Real Time Data


Water Management

All water in the Gwydir is managed by water sharing plans established progressively since 2004. Currently 19% of long term Gwydir river flows and 85% of sustainable yield of the Lower Gwydir aquifer are available for irrigation. This has been reduced over time following reforms and water recovery for environment.



Groundwater Monitoring Network

The are a number of groundwater sources including the Lower Gwydir aquifer used for irrigation and the Great Artesian Basin, including recharge zones. WaterNSW monitor levels via 26 monitoring sites with data accessible in real time.

Groundwater provides reliable irrigation water, quality drinking water for towns and properties and is one of the region’s major tourism attractions.

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Copeton Dam

Copeton Dam is located on the Gwydir River upstream of Bingara on the north-west slopes of NSW. It is one of the largest inland dams in NSW with a capacity of 1,364,000 megalitres of water. It was initiated in 1966 to provide town water supplies and to boost irrigated agricultural production in the Gwydir Valley.


Latest News and Events

News |

DPE have made an allocation announcement for supplementary entitlements of 0.79 megalitres per unit share brining supplementary entitlements to 100% availability, this has come in response to the issuing of replacement floodplain harvesting licences in the regulated and unregulated water sources with water availability of 1 megalitre per unit shares.  These licences are now fully enabled.

This for the first time brings all licences into the water management framework and with 100% availability for all forms of take with general security accounts at their maximum of 150%.

I'll note Copeton Dam remains on spill operations to maintain capacity to 100%.

News |

In a milestone for water management in the region, the NSW Water and Environment Minister’s jointly amended the Gwydir’s water sharing plans to include floodplain harvesting, the take of water during floods.

This is the final form of water in the region to be licensed and has taken 20 years of delays and deliberations with licences to begin by 1 September 2022.

Zara Lowien, the Executive Officer of the Gwydir Valley Irrigators Association whose members will be the first in NSW to be licenced for this form of take said this is not a win for northern irrigators, as it's often portrayed.

"On average water users in the Gwydir are losing 30% of their long-term access to flood water which will have more than a $90 million impact to our economy through less production" she said.

"Make no mistake, this is an environmental reform like no other.”

News |

The Water Sharing Plan for the Gwydir Regulated River Water Source and the Gwydir Unregulated Water Sources were amended and made available on Friday, 29 July 2022.

The updates include the floodplain as a source of water and the new account management, access and dealing rules for replacement floodplain harvesting licences which are due to commence no later than 1 September 2022. This is a major milestone for the near completion of the Healthy Floodplains Program in our region.

Update were also made to make these plans consistent with rules for the Basin Plan. 

The regulated plan can be accessed via sl-2022-429 (

The unregulated plan can be accessed via sl-2022-430 (

News |

The Mehi River has been flowing quickly through Moree as Copeton Dam spilled to make room for recent inflows.  These flows were largely shared between the Carole Ck and the Mehi River.  The releases were then used to fulfil orders for water users who are planning to irrigate wheat and ensure on farm supplies are ready for the upcoming cotton season.  

Releases from Copeton peaked at 7,000 ML per day and have reduced to 1,600 ML per day.  Currently, there is just under 3,000ML/day visible under the bridge through town as per the picture. 

WaterNSW are actively managing Copeton Dam to 99% capacity unless water orders reduce this volume.

For more information visit WaterInsights - WaterNSW

News |

The NSW Government has released a draft Groundwater Strategy which is currently open for consultation. The Strategy is available here for review.

Public webinars are available on 25th and 28th of July to hear about the strategy and its objective and priorities. 

The Gwydir region relies on a number of groundwater sources to maintain production during droughts as well as stock and domestic use around the catchment.  Groundwater also supplies many of our towns and commercial businesses.  

The GVIA will be participating in the public and targeted information sessions prior to preparing a submission. Please click the link for more information or to register for one of the public information webinars. 

Events |

Carbon is one of the topics getting attention at present. It is important for our members to understand what it means for them. To  help we are hosting the Gwydir Regional Carbon Forum in partnership with UNE, NSW DPI and the CRDC. We are looking to provide information on Sustainable Soil Management and how this links with a productive cropping system and Carbon. 

  • What is soil Carbon: Understanding, monitoring and measuring soil carbon. What levels could be expected as a baseline? What do producers need to know before they make any changes? How can they use existing/historic soil tests?
  • Understanding and measuring emissions: What is involved in making this assessment and how should producers go about collecting the information.
  • Data management: What data do producers need, where can it be stored, how can this be easily managed over time.
  • Tools that can assist producers and agronomist easily manage the Carbon space.
When: 3rd August 2022
Where: Town and Country Club, 5 Frome St, Moree
Start: 2:00pm


Making Every Drop Count

Securing a future for the Gwydir Valley through Irrigated Agriculture.