October 2018

The Monthly Water Report provides a summary of the status of Victoria's water resources and water supplies at the end of the reporting month. It is based on validated water resource information provided by Victoria's 19 Urban and Rural Water Corporations and the Bureau of Meteorology. Each month's report is published online the following month. For detailed, specific and up-to-date information, please contact the relevant Water Corporation or the Bureau of Meteorology. Links to these organisations are located within the Monthly Water Report.

Rainfall

October rainfall was below average in most of the State's south and east. Large parts of the south west coast, east central, and west and east Gippsland districts, had rainfall totals in the driest 10 per cent on record for October. October rainfall was close to average in most of the Mallee, Wimmera, north and north central districts.

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Streamflows

Stations recorded significantly below average streamflow across the entire state for the month of September.

[Note: October streamflow data is not available due to change of service providers].

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Storage levels

The total volume of water held in Victoria's major storages increased by 2.8% during October, ending the month at 62.4% capacity. Decreases were recorded in 47 monitored storages, with the O'Shannassy reservoir recording the largest percentage fall of 36.2%.

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Groundwater

This section contains a quarterly update on groundwater trends for July to September period. The next update is December 2018.

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Urban water restrictions

All towns are currently subject to Permanent Water Savings Rules. Permanent Water Saving Rules were also applied at the same time last year.

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Irrigation allocations

The allocations for the systems managed by the Resource Manager Northern Victoria (Goulburn-Murray Water (GMW)) were updated on 15 October 2018, with the next update on 1 November 2018.

As at end of October 2018, seasonal determination for the Werribee/ Bacchus Marsh Irrigation Districts are 30% high-reliability water shares (HRWS) and 100% HRWS for the Macalister Irrigation District. The next announcement will be made on 7 November 2018 for the Werribee/ Bacchus Marsh Irrigation Districts and on 15 December for the Macalister Irrigation District.

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Restrictions on diversions 

At the end of October, there were 52 unregulated streams subject to diversion restrictions across Victoria. This is 9 more than reported at the end of September, and 29 more than at the same time last year.

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Seasonal climate outlook

The Bureau of Meteorology (BoM) released its latest ENSO Wrap-Up on 23 October 2018. The El Niño–Southern Oscillation (ENSO) Outlook has been raised to El Niño ALERT.

BoM released its latest November to January 2018 climate outlook on 27 October 2018. The outlook indicates Victoria is likely to be drier and warmer than average.

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Water for the environment

This section of the Monthly Water Report contains monthly updates on environmental entitlements.  Environmental water use is reported quarterly by the Victorian Environmental Water Holder.

[Note: October data is not available at present and will be uploaded when available].

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Page last updated: 03/10/2018