Australian Water Management Review Vol 1 2010 | Page 39

39 3. it helps to think of resource management as a problem of designing a management system to meet a set of ongoing challenges; 4. complexity, uncertainty and conflict are inherent attributes of many water management systems; 5. water management, notwithstanding its technical aspects, is largely a problem of governance; and, 6. successful resource management depends on integrating the human sciences. These lessons underpin the transformation to sustainable integrated water resources planning that is taking place in Southern California. The drought period of the late 1980s required Southern California water agencies to mandate water conservation. Since this time, integrated resource planning, which has driven legislative, policy and planning changes to see water recycling, stormwater harvesting, groundwater management and low impact development (water sensitive urban design) increasingly considered as viable alternatives, with a role to play in water supply planning. These changes have been made in the context of federal initiatives to control pollution of waterways and to share water with other economic and environmental users of water. Alongside its significant history of importing water, today, the City of Los Angeles is aggressively diversifying water supply opportunities. In May 2008, the city adopted ‘Securing L.A.’s Water Supply’ – a long-term, sustainable plan water supply plan, which has identified expanding recycled water; increasing water conservation, enhancing stormwater capture, accelerating cleanup of the groundwater basin, and expanding groundwater storage as key elements of the city’s future. Conclusion In both Australia and Southern California, there has been a shift from acceptance of supply augmentation — through ever-increasing water imports and the cleaning up, but ultimately discharging as pollution, of sewage and stormwater effluents — to a water resource-based mind-set (which advocates a variety of water products that are fit for their intended use, locally produced, and less climate dependent). Also, economic regulators in both jurisdictions have questioned whether all the alternatives for supply are given fair consideration, whilst scientists in both places adopt systems-based, risk-management approaches rather than prescriptive technological ones. These options and supporting management approaches for diversification must be further explored. However, perhaps even more interestingly, the experience of both places has highlighted a very real tension in water planning: under the pressure of critical (drought) circumstances, innovation thrives, yet, with diminishing time remaining for action, not every option remains a genuine option. Whilst criticality brings the political will to create great change, by the time a crisis point is reached several response options are already lost. The challenge for the future therefore becomes: How do we create a resonant impetus for change before crisis is upon us to maintain the integrity of the planning process? One possible means of creating part of this impetus that stands out in the Australian context is the continued development of national policy, regulatory and legislative frameworks. This is an abridged version of a paper delivered by Emma Pryor at OzWater ’10, the annual conference of the Australian Water Association.