Dr David Horn is a chartered professional engineer with a degree in Civil Engineering and a PhD in Environmental Engineering. He has over 25 years of professional experience in environmental, civil engineering and environmental engineering research. Dr Horn has particular technical knowledge and experience related to the water and wastewater industry, the management of water quality in lakes, rivers and reservoirs, hydrodynamics and catchment management. He held academic and research positions at the Centre for Water Research at the University of Western Australia and has published reports and articles on environmental water quality and water resource policy. Dr Horn manages the GHD environment business in Western Australia, which provides a range of environmental services.