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Goulburn-Murray Water (G-MW)

This was the final allocation announcement for this season, all late season resource improvements are now being reserved to secure water supplies in 2009/10.

The Minister for Water temporarily qualified rights to water in the Murray, Goulburn, Broken, Campaspe, Loddon and Bullarook systems to make sufficient water available for essential urban and farming needs.

Normal allocation rules resumed on the Goulburn and Murray systems during November when allocations reached 20%. The qualification on the Broken, Loddon, Bullarook, and Campaspe systems will remain in place until 30 June 2009.

G-MW released the first seasonal allocation outlook for the 2009/10 season on 16 February 2009.

All systems are expected to have zero seasonal allocation on 1 July 2009.

The following tables list estimated future allocations (as a percentage of high reliability water share), under a range of inflow scenarios.

Outlook for Monday 17 August 2009

Outlook for Thursday 15 October 2009

Outlook for Monday 15 February 2010

Average inflow conditions would result in above zero allocations occurring in all systems on 17 August 2009. A continuation of the severe drought conditions, such as those experienced this season, would result in zero allocations for the 17 August 2009.

Inflows between July and November 2009 will be critical to providing irrigation allocations in the 2009/10 season. Continued poor inflows during this period would prevent improvement in seasonal allocations across most of the northern Victorian water systems.

Goulburn-Murray Water will update the allocation outlook for 2009/10 on 15 May 2009.

Coliban Water

On 15 September, Coliban Water announced a 0% allocation on the Coliban Rural System.

Recycled water is available to customers on the Ascot, Axe Creek and Cockatoo Hill channel systems up to 40% of licence volume. Elsewhere in the rural system, a qualification of rights is in place to provide significant commercial operators with emergency supplies up to 30% of licence volume.

Wimmera Mallee Domestic and Stock Supply System

The Grampians storages were at 3.7% of capacity at the end of April.

Irrigation allocations remain at zero.

Towns and farms in Supply Systems 1 and 2 are receiving full supply from the pipeline. The pipeline for Supply System 5 has been installed and is supplying River Murray water to Nullawil, Berriwillock and Culgoa and 834 farms within the supply zone.

Trunk installation in Supply Systems 3 and 4 is now complete between Taylors Lake and Lubeck, with emergency water supplies available as meters are installed. Construction of pump stations and storages are on target for completion by the end of 2009. The winter channel run supplied towns and some large supply-by-agreement customers adjacent to the major channels in this area. Other needs are being met by carting.

There is not enough water for a channel run this year in Supply System 6. However, GWMWater is carting domestic water to farms with dams that have emptied or have poor water quality. Over 150 kilometres of pipeline has been installed to date in this section and the construction of the Brimpaen storage has commenced.

The remaining pipelining of the Wimmera Mallee system is estimated for completion by the end of 2009.

Southern Rural Water

Macalister Irrigation District (MID)

At the end of April, Lake Glenmaggie, the principal source of water for the MID, was at 26.3% of capacity. This is a decrease of 15.9% over the month.

Irrigation deliveries have been high because of low rainfall over spring and summer.

In April, Southern Rural Water increased the irrigation allocation for high reliability entitlements to 100% and low reliability entitlements to 10%, for all irrigators within the MID and for diverters on the Thomson River, Macalister River and Rainbow Creek. 

Latrobe System

At the end of April, storage levels in Blue Rock Lake were at 74.1% of capacity.

The irrigation share of Blue Rock was 189 ML. SRW licence holders downstream on the Latrobe and Tanjil Rivers can pump up to their licence volume, but this is subject to the availability of unregulated river flows (which normally contribute approximately 70% of entitlements).

Werribee Basin

SRW’s share of the Werribee storages was at 3% of capacity at the end of April.

The seasonal allocation remained at 5% high reliability water share for the Werribee and Bacchus Marsh irrigation districts. This allocation applies until 30 June 2009. Irrigators are continuing to use water remaining from the 2,000 ML transferred from the SRW drought reserve in Thomson Reservoir.

Irrigators in the Werribee area continue to rely on the recycling scheme as their principal water source while the river flows are very low. The recycling scheme is now providing about 60 ML/day, and approximately 95% of Werribee growers are participating.

SRW is preparing its Western Irrigation Contingency Plan for the 2009/10 season.

Maribyrnong Basin

The storage volume in Rosslynne Reservoir remained very low, at 2.7% of capacity at the end of April.

With inflows well below average, SRW diverters have another season of zero allocations.