1. Environmental Health Officer, Hunter New England Population Health, Wallsend, Australia
2. Statistician, Hunter New England Population Health, Wallsend, Australia
3. Manager Water Unit, Environmental Health Branch, NSW Health, Sydney, Australia
4. Public Health, University of Newcastle, Wallsend, Australia
5. Health Promotion, School Health Medical and Applied Sciences, Division Higher Education, Centre for Indigenous Health Research Equity, Central Queensland University Australia, Bundaberg Qld, Australia
6. Chemistry, College of Science and Engineering, James Cook University, Townsville, Australia