Fifty Years of Water Sensitive Urban Design, Salisbury, South Australia

• Published in: Frontiers of environmental science & engineering 2017-08, Vol.11 (4), p.63-72, Article 7
• Main Authors: Radcliffe, John C., Page, Declan, Naumann, Bruce, Dillon, Peter
• Format: Article
• Language: English
• Subjects: Aquifer management; Aquifers; Chlorination; Contaminants; Design; Disinfection; Drinking water; Earth and Environmental Science; Environment; Environmental risk; Flood management; Groundwater recharge; Irrigation; Low impact development; Low Impact Development and Sponge City; Managed Aquifer Recharge (MAR); Microfiltration; Pipes; Policies; Principles; Research Article; Research projects; Risk management; Storage; Stormwater; Stormwater harvesting; Urban planning; Urbanization; Water harvesting; Water quality; Water recycling drinking water; Water sensitive urban design; 公共开放空间; 南澳大利亚; 地下储存; 城市设计; 敏感; 水资源; 管理政策; 饮用水源
• ISSN: 2095-2201; 2095-221X
• DOI: 10.1007/s11783-017-0937-3

Australia has developed extensive policies and guidelines for the management of its water. The City of Salisbury, located within metropolitan Adelaide, South Australia, developed rapidly through urbanisation from the 1970s. Water sensitive urban design principles were adopted to maximise the use of the increased rim-off generated by urbanisation and ameliorate flood risk. Managed aquifer recharge was introduced for storing remediated low-salinity stormwater by aquifer storage and recovery （ASR） in a brackish aquiter for subsequent lrngatlon. Ibis paper outlines now a municipal government has progressively adopted principles of Water Sensitive Urban Design during its development within a framework of evolving national water policies. Salisbury＇s success with stormwater harvesting led to the formation of a pioneering w aterbusiness that includes linking projects from nine sites to provide a non-potable supply of 5 ×10^6 m^3 year. These installations hosted a number of applied research projects addressing well configuration, water quality, reliability and economics and facilitated the evaluation of its system as a potential potable water source. The evaluation showed that while untreated stonnwater contained contaminants, subsurface storage and end-use controls were sufficient to make recovered water sale for public open space irrigation, and with chlorination acceptable lbr third pipe supplies. Drinking water quality could be achieved by adding microfiltration, disinfection with UV and chlorination. The costs that would need to be expended to achieve drinking water safety standards were found to be considerably less than the cost of establishing dual pipe distribution systems. The full cost of supply was determined to be AUD$1.57 m ＂ for non-potable water for pubhc open space lrngatlon much cheaper than mares water, AUD $3.45 m at that time. Producing and storing potable water was found to cost AUDS1.96 to $2.24 m .