The use and management of water in Goulburn Valley Key Knowledge and skills • Geographic characteristics • Distribution of water resources • Factors affecting patterns of water use • Current management policies and strategies Irrigation districts in the Goulburn Murray water region Characteristics of the Goulburn river catchment • Fertile soils • Cool winters • Warm – dry summers = an ideal agricultural climate Characteristics However……. • Rainfall is low and unreliable Therefore….. • Irrigation water is needed to take advantage of these conditions One of the most productive irrigated farming regions • ~ 200,000 people live in the catchment • Work in: – Producing – Processing – Transporting agricultural products to regions within Australia and overseas. Use of water • Irrigation uses most of the water in the Goulburn catchment while the remainder meets – urban, – industrial and – environmental demands During the recent drought water supplies were severely reduced Use of water Shepparton Irrigation Region (SIR) • Uses its water to produce $4.5 billion worth of: – Dairy foods – Wine – Grapes – Apples – Pears – Cherries – Berries and vegetables SIR • This region Contributes 25% of Victoria's export earnings. • Some of Australia's largest food processing, dairy and canning companies are located here Management of water Resources Main storages in the Goulburn Valley region include. • Lake Eildon • Goulburn Weir • Waranga Basin Movement • Water is released from these storages and distributed via channels to the Shepparton and central Goulburn irrigation districts, and to the towns in the west and north west. Management • Goulburn – Murray water is the company responsible for this regions water • It stores, manages, and delivers the water through a complex system of dams, weirs and 6300 km of distribution channels to its 24 000 customers Issues facing the Goulburn Valley region • Similar to other parts of the basin including: – loss of biodiversity, – Land degradation – Rising water tables – Dry land salinity and – Supplying amounts of water for irrigation, and – Maintaining the rivers health Issues • In 2009 – 2010 Goulburn-Murray Water began the irrigation season with zero water allocations, because of low river flows • Threatened farmers livelihood's and • Victoria's food supplies Issues • 2010 – 2011 provided the highest irrigation allocations for 5 years and allowed water to be stored • Before allocations to irrigation, sufficient supplies are required to meet: – Essential hygiene and – Domestic • Other concerns = sugarloaf pipeline • Ballarat and Bendigo receive water piped from the Goulburn Responses • To maintain high productivity must be more efficient • ~ 850 Gl of water lost annually through: – – – – leaks, seepage, inaccurate metering of water and evaporation This is nearly 9 sugarloaf’s capacity Out-dated infrastructure Northern Victoria Irrigation Renewal (NVIR) • was established in 2008 to deliver major changes to water delivery and improve infrastructure. • Measures include: – More efficient flows to farms via – Automated channel control system – Repairing leaks and lining some channels – Reducing overflows • By 2012 it was estimated that 225 GL of water will be saved • 2.3 surgarloaf’s