Cooperative Research Centre for Water Quality and Treatment, Australian Water Quality Centre, SA Water Corporation, Salisbury, SA, Australia. paul.rasmussen@sawater.com.au|Cooperative Research Centre for Water Quality and Treatment, Australian Water Quality Centre, SA Water Corporation, Salisbury, SA, Australia. paul.rasmussen@sawater.com.au|Cooperative Research Centre for Water Quality and Treatment, Australian Water Quality Centre, SA Water Corporation, Salisbury, SA, Australia. paul.rasmussen@sawater.com.au