1. Andrew Speers. Industry Programs Manager, Australian Water Association, PO Box 222, St Leonards, NSW, Australia, 1590. Email: aspeers@awa.asn.au
2. Allen Gale. General Manager Technical Services, Goulburn Valley Water. 104-110 Fryers Street Shepparton, Victoria, Australia, 3630. Email: alleng@gvwater.vic.gov.au
3. Nancy Penney. Biosolids Strategist, Wastewater Treatment Branch, Process Expertise Group, Water Corporation of Western Australia, PO Box 100, Leederville, Australia 6007. Email: nancy.penney@watercorporation.com.au