Water Science & Technology Vol 65 No 9 pp 1692–1695 © IWA Publishing 2012 doi:10.2166/wst.2012.069

Microbiological risks of recycling urban stormwater via aquifers

D. Page, D. Gonzalez and P. Dillon

With the release of the Australian Guidelines for Water Recycling: Managed Aquifer Recharge (MAR), aquifers are now being included as a treatment barrier when assessing risk of recycled water systems. A MAR research site recharging urban stormwater in a confined aquifer was used in conjunction with a Quantitative Microbial Risk Assessment to assess the microbial pathogen risk in the recovered water for different end uses. The assessment involved undertaking a detailed assessment of the treatment steps and exposure controls, including the aquifer, to achieve the microbial health-based targets.

Keywords: managed aquifer recharge; microbial health-based targets; quantitative microbial risk assessment; urban stormwater

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