The volunteers that form the comittee of Stormwater SA for 2022/23 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 joined the Stormwater SA committee in 2017 and has held the role of Secretary since 2020.

Michael Di Matteo

Michael Di Matteo


 Michael is a Senior Water Resources Engineer with KBR 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.

Michael has held the role of Treasurer since 2022.


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

Vice Chairperson

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.

Todd Rundle

Todd Rundle


Todd is Principal Engineer and Stormwater Modelling Lead at Southfront, specialising in urban and rural surface water modelling, drainage design and water sensitive urban design.  Todd has extensive experience in developing numerous stormwater management plans across metropolitan and regional areas and has worked on various major road and rail infrastructure projects.


Harsha Sapdhare




Harsha is a water and environmental engineer experienced in field monitoring, hydraulic modelling, water quality and environmental impact assessment. She is working as a Research and Development Manager at Space Down Under. Harsha obtained her PhD in economic and environmental impact assessment of kerb side infiltration systems from the University of South Australia. Harsha’s research interest is in the investigation of cost-effectiveness and environmental impacts of infiltration systems and other green infrastructure or WSUD tools.


 20220303 124929

Dom Mileto

Dom has a Bachelor of Mechanical Engineering from the University of South Australia and works for Geofabrics in Adelaide as a Sales Engineer. His role involves application engineering and sales of geosynthetics into the civil and water space, including stormwater. Dom is keen to provide solutions to the stormwater industry that optimise design, total lifecycle cost and constructability.



Rob de Nys

 Rob has been involved in the Stormwater industry for over 20 years through his previous employment at Rocla. His extensive experience includes Water Quality products, conduits (RCP, RCBC, SRHDPE) storage, re-use, sewer and CWMS throughout SA. His experience extends to industry organisations including CCF and local government associations. Rob recently joined Ocean Protect – a company focused on Water Quality. Rob has an Advanced Diploma in Business and a Diploma in Environmental Technology. Having Children, he is passionate about improving environmental outcomes – by encouraging “best practice” – both at home and in the broader community. Prior to the Stormwater Industry, Rob was involved in the Wine & Real Estate Industries in Regional SA.



David Trebilcock

David leads the Stormwater Management Authority, which has been established as a partnership between the South Australian Government and the Local Government Association of South Australia. Previously he has held senior state government roles in water monitoring, asset management and emergency management, and led the implementation of the State Emergency Service’s flood intelligence system.

David’s interests include integrated urban water management and improving flood resilience of communities.

 Photo AMB 1

Andrew Buggins 

Andrew has worked in the stormwater industry for over 20 years and has over 15 years’ experience with Atlan Stormwater, having worked in NSW, ACT and now looking after the SA team. Andrew has built a wealth of experience whilst working with Atlan, he finds joy in taking on the most difficult stormwater projects and engineering viable solutions. Supplying innovative approaches to green and grey stormwater infrastructure, Andrew has helped design and implement industry-leading pollution removal solutions across Australia.


Nadine Kelly

Nadine Kelly

Nadine is an environmental engineer with a passion for water, the environment and sustainability. Nadine has worked across private and government sectors in urban water and natural resource management, and is currently Program Leader for Healthy Coorong, Healthy Basin for the Department for Environment and Water. She has Bachelor Degrees in environmental engineering and environmental biology, and a PhD in ecology and engineering.  

Felicity Hewett

Felicity Hewett

Felicity has worked as an environmental engineer in watercourse rehabilitation and riparian health management for watercourses within Metropolitan Adelaide and regional South Australia since 2011. Felicity has extensive experience in modelling and managing water quality issues relating to urban stormwater and receiving water environments. She is also experienced in the design of WSUD infrastructure and watercourse rehabilitation works.