SA Sundowner June 2025 - Bolivar WWTP Expansion Project

YWP x YEA June Sundowner Mixer - Bolivar WWTP Expansion Project

In collaboration with the Engineers Australia SA Branch Young Engineers Australia (YEA) Committee, the SA Branch AWA Young Water Professionals (YWP) Committee invite you to take the chance to hear and ask questions about SA’s biggest WWTP, and its biggest expansion in over 20 years at this month’s Sundowner! Following on, there will be plenty of time for expanding your network over post work drinks & nibbles shared between YEAs and YWPs thanks to our sponsor GPA Engineering

South Australia’s largest Wastewater Treatment Plant (WWTP) is Bolivar WWTP. Bolivar serves over 70% of South Australia’s population with a catchment spread over 530 square kilometres, and with this catchment growing, Bolivar is undergoing a significant upgrade to its capacity. This upgrade to its capacity is focused on an expansion of Bolivar WWTP’s inlet screens, which are being more than doubled in size.

Get an inside look at Bolivar WWTP and inlet screens major capacity upgrade from those at SA Water who have managed the design and delivery of this project! A co-presentation from the SA Water/Aurecon Design Manager, Mark Stone-Wigg, and SA Water Project & Portfolio Manager, Katrina Oorloff, will provide insights into the ins and outs of this massive project.

Speaker 1:

Katrina Oorloff (Senior Project Manager – SA Water)

Senior Project Manager and Acting Portfolio Manager at SA Water, overseeing the delivery of $400M in capital works within wastewater treatment plant. Experienced across infrastructure sectors including rail, construction, and wastewater treatment, with a strong track record in complex project delivery—most recently leading the Bolivar Inlet Works upgrade

Speaker 2:

Mark Stone-Wigg (Technical Director Water – Aurecon / Lead Design Manager – SA Water)

Mark has over 38 years’ experience across water and environmental industries in Australia, the UK and other parts of the world. His experience is primarily with water and wastewater treatment plants and pumping stations, raw water and seawater pumping, and irrigation and drainage. Mark is a Technical Director in Aurecon’s Adelaide office, but currently he is a Lead Design Manager within the integrated SA Water Engineering team. After coming to Australia for the Adelaide Desalination Plant and previously been involved with significant SA Water projects at Happy Valley and Hope Valley WTPs and Glenelg WWTP, Mark has recently been predominately involved with projects at Bolivar WWTP.

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Sundowner events are open to anyone with an interest in the water industry, and present an opportunity to meet with other professionals, regardless of experience levels. This is a free event where you can grab your drink(s) of choice, however, please register your attendance. Looking forward to seeing you there!

Event Details

Date: 19^th June 2025

Time: 5:15 PM for 5:30 PM start, event concludes at 6:30 PM

Location: Some Where House, 258 Pultney Street, Adelaide, 5000

What: Light snacks provided, and a bar tab set up thanks to GPA Engineering