The Metropolitan Water Plan was first developed in 2004 in response to indications the drought was taking hold. The Plan was updated in 2006 due to deepening drought, and again in 2010 as part of the review cycle.
The Plan is reviewed periodically. These reviews enable us to adapt to challenges such as our highly variable climate, droughts, climate change and a growing population, and to update the plan taking account of the latest data, techniques and research.
The mix of supply and demand measures is adjusted through these reviews to ensure that growth and drought needs are met while minimising costs to the community.
When developing the water plans, the Metropolitan Water Directorate considers all costs and benefits to the community where possible, including social and environmental impacts.
Investments are made on the basis of balancing the needs of the community with the needs of the environment, and on the best available knowledge, but without locking out future innovation.
The 2010 Metropolitan Water Plan is currently being reviewed to take account of changes in demand and supply, new data and research.