Header image

Session 2A

Mine Waste and Tailings
Tuesday, July 29, 2025
11:00 AM - 12:50 PM
Sponsored By:

Speaker

Agenda Item Image
Ms Rachel James
Senior Scientist
Geosyntec Consultants

Session Chair

Biography

Rachel James is a principal geoscientist with over 18 years of experience in project management and aqueous geochemistry within the mining sector. Based in Toronto with Geosyntec Consultants, Rachel specializes in leading multidisciplinary teams to deliver technically rigorous, regulatory-compliant solutions for mine development, closure, and tailings management. Her portfolio includes managing multi-year, technically complex programs, with notable achievements such as guiding clients through meeting Global Industry Standard on Tailings Management (GISTM) timelines and objectives. Rachel brings deep expertise in mine environmental management, closure strategy, decision analysis, and alternative water treatment technologies. She is committed to helping clients navigate evolving global best practices and emerging guidelines, with a focus on risk-informed decision-making and sustainable outcomes.
Mr Bradley Tiver
Principal Tailings Engineer
WSP Australia

Case Study: Engineer of Record transition process at a complex site

11:00 AM - 11:10 AM

Abstract

Biography

Brad is a Principal Tailings Engineer at WSP in Adelaide. Brad has 15 years of experience working as a consulting engineer for Golder and WSP, and is the regional leader of WSP's Mine Tailings group for South Australia and Victoria. He has a strong background in geotechnical engineering and design of TSFs with lead engineer and project management roles. Brad is Engineer of Record a two sites with Very High consequence category TSFs.
Mr Martin Rojas
Geotechnical Engineer
Red Earth Engineering

Enhancing Quality Assurance in the Construction of Tailings Storage Facilities through Automated Workflows

11:10 AM - 11:20 AM

Abstract

Biography

Martin joined Red Earth Engineering’s Perth office in early 2024 as a Geotechnical Engineer. His work in mine waste includes certification of construction of tailings dams, stability analysis, experimental studies on waste dump stability, and support with construction documentation and implementation of guidelines such as GISTM. He previously worked for three years in transport engineering consultancy and, during his master’s studies, researched airblast hazards in underground mining through numerical modelling.
Agenda Item Image
Ms Jodie Kilpatrick
Principal Engineer – Geotechnics and Mine Waste Engineering
SLR Consulting

The role of Critical Controls in Safe Tailings Management

11:20 AM - 11:30 AM

Abstract

Biography

MEng (Civil), GDp (Metallurgy), BSc (Adv)(Hons) Hydrology, CPEng NER IntET (Aus), RPEQ, MAusIMM Principal Engineer – Geotechnics and Mine Waste Engineering Jodie demonstrates a record of high achievement within both technical and mining operational environments over her 10 years of experience. Jodie has a strong foundation in tailings and water management, with experience ranging from the direct operation of tailings facilities (and water dams) to the coordination of engineering assessments and dam designs. Jodie has experience in the technical review of dam facilities through dam safety reviews, integrity inspections, and remedial designs. Jodie has experience with leading a team of tailings and water dam engineers, with a key goal to translate technical information into an operational language (to allow successful implementation of industry best practice for dams). Jodie is proficient in risk management tools, critical controls, and procedures in the context of water and tailings dam infrastructure. Jodie undertakes a multidisciplinary approach to tailings and dam management, also containing experience in mine water management, including water balance modelling through the use of Goldsim, Flood modelling (TuFLOW), and GIS packages.
Agenda Item Image
Dr Peter Chapman
Technical Director (tailings)
WSP

A Competency Based Development Framework for Current and Future Engineers of Record

11:30 AM - 11:40 AM

Abstract

Biography

Peter is a Technical Director (Tailings) based in WSP’s Perth office. He has over 20 years of experience in geotechnical engineering, specialising in tailings management solutions. His main role is technical direction of projects ranging from scoping studies through to feasibility studies and detailed engineering, with a strong focus on risk management and the journey to safe closure.
Agenda Item Image
Ms Rachel James
Senior Scientist
Geosyntec Consultants

Q&A with Session Chair

11:40 AM - 11:55 AM

Biography

Agenda Item Image
Dr GV Price
Senior Staff Consultant
KCB Australia Pty Ltd

The challenge of GISTM adherence for smaller mining operations in remote parts of the world

11:55 AM - 12:05 PM

Abstract

Biography

Dr GV Price “GV” has over 45 years of experience in geotechnical engineering, managing complex projects and leading specialized teams. He has directed four consulting firms in southern Africa, two of which he founded. GV holds an MSc and PhD in Engineering Geology from the University of Pretoria, focusing on rockmass characterization for tunnelling. He has extensive experience in the engineering geological and geotechnical engineering fields including mining open pit rock mechanics, tailings dams, GISTM assessments, rock slope assessment and stabilization, water and hydro dam investigations; rock and soil aggregate materials engineering, roads and rail transit systems including mega-bridge construction. GV has worked across Africa, Australia, Ireland, Afghanistan, and Indonesia. In 2020, he received the SAIEG Gold Medal for his contributions to engineering geology. He is a senior staff consultant at KCB Australia and resides in Brisbane with his family.
Agenda Item Image
Mr Pepe Moreno
Principal Consultant - Director
Tailex Pty Ltd

Revisiting Probability of Failure vs. Factor of Safety: A Screening Tool with Limitations

12:05 PM - 12:15 PM

Abstract

Biography

Pepe Moreno is a civil-geotechnical engineer with more than 30 years of experience in the tailings industry. With a career spanning a variety of operational and environmental contexts worldwide, Pepe contributes as both a technical lead in design while also serving in a range of governance capacities. Through his leadership at Tailex, Pepe aims to support clients with rational assessments of tailings risks and a thoughtful balance between safety, performance, and the operational realities in the mining industry
Agenda Item Image
Mr Walter Weinig
Discipline Leader, Hydrogeology & Mine Closure
Stantec

Monitoring Over the TSF Life Cycle: A Structured Approach

12:15 PM - 12:25 PM

Abstract

Biography

Walter is the Hydrogeology and Mine Closure Discipline Leader for Stantec's Australian operation. With technical expertise in hydrogeology and over 30 years’ experience, Walter works with teams serving clients in the Australia-Pacific region and the Americas focusing on projects related to legacy tailings assessment and remediation, mine closure, and mine water issues. Walter’s experience includes evaluation of water-related impacts, monitoring programs, and closure options for tailings storage facilities in semi-arid, subtropical, temperate, and mountain environments. He recently led the design of an instrumentation program that is being installed at a closed tailings pile in the USA and has conducted audits of instrument and data-management systems for active TSFs in Queensland and Mongolia. Walter is a member of AusIMM and a Fellow of the Australian Institute of Geoscientists.
Mr Stephen Darmawan
Principal Engineer
Geotesta Pty Ltd

TailingsIQ: An AI-enhanced tool for improving tailings storage facility oversight and risk management

12:25 PM - 12:35 PM

Abstract

Biography

Agenda Item Image
Ms Rachel James
Senior Scientist
Geosyntec Consultants

Q&A with Session Chair

12:35 PM - 12:50 PM

Biography

loading