The volunteers that form the comittee of Stormwater SA for 2017/18 are:

Andrew King - Head Shot

Andrew King


Andrew has been on the committee of Stormwater South Australia for numerous years and has held the position of South Australian Chair for the last few years.

Through a combination of his involvement and passion in advancing best practice stormwater management, experience in design and implementation, and representation of local government and Stormwater South Australia, Andrew has been invited to be part of numerous steering and reference groups for stormwater related projects and investigations for various stakeholders. He has also presented on stormwater matter in several varying sectors of the water and related industries, again for various stakeholders.



Sarah Murphy

Sarah graduated with a Bachelor of Civil and Environmental Engineering from the University of Adelaide in 1996 before completing a Masters Degree researching the effectiveness of the Barker Inlet wetlands in improving urban water quality. Throughout her career she has worked on projects in most mainland states of Australia and spent time working overseas on flood disaster management and aid projects in Central Vietnam and North-Eastern India. Since joining Tonkin in 2015, Sarah has been working across stormwater projects and flood studies in Metro and Regional SA and environmental works and measures projects in the Riverland and South East regions. She also holds a number of internal roles across the business in the development and waste management space.

Sarah has been on the Stormwater SA committee in 2017 but is new to the role of Secretary in 2020.

Mark Page2

Mark Page


Mark graduated with a Bachelor of Civil Engineering from the University of Adelaide in 2004 and has since worked at Kellogg Brown and Root as a civil engineer. Throughout Mark’s career he has worked on a wide range of projects including local and state government infrastructure often with a particular focus on the stormwater and WSUD elements of these projects. Mark has also worked as lead civil engineer, design manager and project manager for detailed design, documentation and construction administration for and a large number of urban development projects, and has particular focus, experience and interest regarding urban renewal developments. Mark has been Treasurer for the Stormwater Industry Association of SA since the beginning of 2006.

Steve Gatti Photo

Steven Gatti


Steven has a diversity of experience in natural resources management over 30 years in the private and public sectors. A geologist by training, Steven has worked in exploration and mine geology, engineering geology, hydrogeology and water management. Working in the public sector for the last 19 years, Steven’s focus has been natural resources management, and principally water management. Working on behalf of state government Steven has been a central figure in developing the Adelaide region’s stormwater harvesting capacity over the last 10 years

Dennis Gonzalez Photo

Dennis Gonzalez


Dennis joined the Stormwater SA committee in 2015 and holds a research position with CSIRO Land and Water primarily working on water resource management and water recycling projects. He has a background in environmental science and spatial analysis and previously held applied science positions within the South Australian Government. His research interests include stormwater quality and management, and managed aquifer recharge.

 Sam Kowald Photo

Sam Kowald


Sam has completed a Bachelor Degree in Marine Science and has a personal interest in the effects stormwater can have on the marine environment. He is currently working for Urban Asset Solutions a stormwater solutions company specialising in filtration device manufacturing, designing custom solutions and maintaining stormwater assets, his role focuses on custom project solutions and product testing and compliance.


Jude Nirmalaraja

Jude Nirmalaraja is a Stormwater Engineer in the City Services of City of Onkaparinga. He has more than ten years of experience in Local Government. He worked in Broken Hill City Council and City of Marion before he joined City of Onkaparinga. He is a member of Institution of Engineers, Australia, since 1995. He has completed a Post Graduate Diploma in Local Government Engineering at University of Technology, Sydney and currently is doing Masters in Urban and Regional planning at the University of South Australia. During the last ten years, Jude has carried out various infrastructure designs and worked on many development projects from investigation, design and documentation through to construction.

Jude has applied the Water Sensitive Urban Design (WSUD) approach for many projects. In particular, he has done designs on water quality modelling of bio-retention swales and rain garden for Aldinga Beach redevelopment project.


Kate Vugts

Kate is a Civil Engineer working for Wallbridge Gilbert Aztec. She graduated from the University of Adelaide with a Bachelor of Civil Engineering, and has since worked as a design engineer on various water management, WSUD, and civil infrastructure projects.

Michael Di Matteo

Michael Di Matteo

Michael is an Environmental Engineer with Water Technology experienced in the stormwater management field including stormwater management planning, water quality assessment, stormwater quality improvement system modelling, stormwater harvesting, and multiple criteria trade-off analysis and decision support. Michael received a PhD in artificial intelligence applications for integrated urban water management from the University of Adelaide and is actively involved in research and promoting urban environment Smart Cities initiatives.

Todd Rundle

Todd Rundle


Todd graduated with a Bachelor of Engineering (Civil and Water) in 2007 and has 12 years’ professional experience in the stormwater consulting industry.  Todd works at Southfront where he is the Stormwater Modelling Lead, specialising in urban and rural surface water modelling, drainage design and water sensitive urban design.  Todd has experience in developing numerous stormwater management plans across metropolitan and regional areas and has worked on various major road and rail infrastructure projects.

Ben Nguyen

Ben Nguyen

Ben has been directly involved in the stormwater treatment industry for over 12 years and has offered high levels of product advice, design and project management to local government, developers, engineering consultants and contractors.  Ben is genuinely committed to provide fully integrated, practical and cost-efficient solutions that meets the needs and requirements of our environment.  Ben has also served in previous years as a former committee member of Stormwater Victoria and Stormwater SA.

Baden Myers Baden Myers is a Research Fellow in the School of Natural and Built Environments at the University of South Australia (UniSA). His research interests include stormwater harvesting, urban drainage, forest hydrology and water sensitive urban design. His current key project is investigating the management of water and environmental assets in plantation forests. Baden also works with the Australian Flow Management Group, a NATA accredited laboratory at UniSA which provides research and testing services for the performance of water related products including water meters, stormwater treatment systems and hydraulic structures