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Sydney – Risk Assessment Training (RAT): Expert Training in Exposure and Toxicity Assessment for Contaminated Sites

HWLE, Sydney

20 – 22 October

The Australasian Land and Groundwater Association (ALGA), in partnership with The Australasian College of Toxicology & Risk Assessment (ACTRA) are pleased to return with its joint training course in Sydney.

Earn 39.5 CPD Points with this intensive short course in Human Health and Ecological Risk Assessment (HHERA), focused on assessing the potential risks from exposure to chemicals in the environment.

The course has been developed by senior industry experts and will provide in-depth technical training, while also focusing on practical skills. Key topics to be covered include:

Developing a risk-based conceptual site model (CSM).
Identifying relevant human and ecological receptors.
Selecting appropriate exposure parameters and toxicity reference values.
Use of modelling tools for Human Health Risk Assessment (HHRA) and Ecological Risk Assessment (ERA).
Calculating intake and characterising risk.
Generating risk assessment reports suitable for third-party review.

The course will require attendees to complete a range of tutorial exercises, using case study materials provided.

The training is based on current Australian Human Health and Ecological Risk Assessment (HHERA) frameworks and guidance, including enHealth, the ASC NEPM, and ANZG, as well as international resources that are commonly relied upon when conducting a risk assessment.

The Risk Assessment Training (RAT) will provide in-depth technical training in Human Health and Ecological Risk Assessment (HHERA).
Focused on the assessment of chemicals in the environment, attendees will gain an advanced understanding of the overarching frameworks relevant to conducting a HHERA in Australia.

39.5 CPD Points for 3 days of training

23 Continuing Education (CE) points to count towards ACTRA registration / re-registration


Day 1 – Tuesday, 20 October 2026

8:45 AM – 9:00 AM
Opening & Introductions
Matthew Potter (CEO, ALGA)
Tarah Hagen (SLR Consulting, ACTRA President)

9:00 AM – 10:30 AM HHERA Framework
Key guidance and references
Overview of key HHERA components/contents of RAT
Standard HHERA report format
Victoria Lazenby (Terravale Consulting)

10:30 AM – 10.50 AM: Morning Tea

10:50 AM – 12:15 PM Tier 1 Screening Criteria 
Sources of criteria
Basis of derivation
Tutorial introduction
Victoria Lazenby (Terravale Consulting)

12:15 PM – 1.15 PM: Lunch

1:15 PM – 2:00 PM Problem Identification & Conceptual Site Model (CSM) Development
Human Health & Ecological Context
Start of ecological receptor identification
Carolyn Brumley (Senversa)

2:00 PM – 3:00 PM Vapour Intrusion Assessment
Dr Jackie Wright (EnRiskS)

3:00 PM – 3.30 PM: Afternoon Tea

3:30 PM – 5:00 PM Vapour Intrusion Modelling
Dr Jackie Wright (EnRiskS)

5:30 PM – 7.30 PM: Networking Drinks at Cabana Bar


Day 2 – Wednesday, 21 October 2026

8:45 AM – 9:30 AM Ecological Risk Assessment (ERA) – Receptor Identification
Carolyn Brumley (Senversa)

9:30 AM – 10:15 AM Ecological Risk Assessment (ERA) – Toxicity Studies
Naomi Cooper (Senversa)

10:15 AM – 10.45 AM: Morning Tea

10:45 AM – 12:00 PM Ecological Risk Assessment (ERA) – Modelling Tools
Uncertainty factors approach
Species Sensitivity Distribution (SSD) modelling
Naomi Cooper (Senversa)

12:00 PM – 1.00 PM: Lunch

1:00 PM – 2:30 PM HHRA – Exposure Assessment
Receptor identification & exposure parameters
Intake calculations
Katie Richardson (Senversa, ACTRA Vice-President)

2:30 PM – 3.00 PM: Afternoon Tea

3:00 PM – 4:30 PM HHRA – Exposure Assessment continued
Additional pathways and exposure factors (e.g. dust, food web)
Katie Richardson (Senversa, ACTRA Vice-President)

4:30 PM – 5:00 PM Panel and Q&A
All Trainers 


Day 3 – Thursday, 22 October 2026

8:45 AM – 10:30 AM HHRA – Toxicity Assessment
Threshold vs non-threshold effects
Selecting Toxicity Reference Values (TRVs)
Tarah Hagen (SLR Consulting, ACTRA President)

10:30 AM – 10.50 AM: Morning Tea

10:50 AM – 12:30 PM HHRA – Risk Characterisation
Unit risk vs hazard index (HI)
Target risk levels
Tarah Hagen (SLR Consulting, ACTRA President)

12:30 PM – 1.30 PM: Lunch

1:30 PM – 2:00 PM Further Works: Eco Risk
Carolyn Brumley (Senversa)

2:00 PM – 2:30 PM Further Works:  HH Risk
Victoria Lazenby (Terravale Consulting)

2:30 PM – 2.50 PM: Afternoon Tea

2:50 PM – 3:30 PM Case Study Wrap-Up
All Speakers

3:30 PM – 4:00 PM Panel and Q&A
All Speakers

   

 

Thank You to Our Venue Partner

   

Registrations Opening Soon

ALGA/ACTRA Member* – $1,320

Non-Member – $1,650

Concession Member** – $660

Student – Not Applicable

All prices include GST.


*ACTRA Member
To receive the member price, please contact events@landandgroundwater.com 

**Concession – must be a Member to receive this pricing.
Concession Ticket includes: Parental leave, Retired, Unemployed.
Early Career Professionals with less than 3 years of experience in the contaminated land and groundwater industry are not eligible for this event.
To receive your dedicated 50% off, please contact events@landandgroundwater.com 


Recommended for:

  • Early career risk assessors who wish to obtain formal instruction in HHERA.
  • Mid to advanced career contaminated land professionals who wish to obtain stronger skills in risk assessment.
  • Regulators or land managers who regularly engage with risk assessors and/or review HHERAs.

Attendees must have:

  • A minimum of ~3 years relevant professional or post-graduate experience.
  • A working knowledge of enHealth, the ASC NEPM, and ANZG. Attendees should be familiar with the terminology and language used in these guidance documents.
  • A general understanding of the environmental behaviours of common environmental contaminants (e.g. those chemicals which have a Health Investigation Level (HIL) or Ecological Investigation Level (EIL)).

Attendees will:

  • Gain an advanced understanding of the overarching frameworks, approaches and guidance documents relevant to conducting a HHERA.
  • Develop practical skills in Exposure Assessment – including identifying receptors, selecting exposure parameters, and calculating intake.
  • Obtain specialist training in Toxicology Assessment – focused on sourcing appropriate TRVs for use in Australian HHRAs.
  • Acquire specialist training in Ecological Risk Assessment methods relevant to Australian environments.
  • Develop an advanced understanding of reporting requirements when generating a HHERA and improve their skills in conducting critical and independent reviews of a HHERAs.

 


Join ALGA and receive the member price! Click here for more information on ALGA membership or contact membership@landandgroundwater.com.

Members of AIOH, EIANZ, and FAMANZ receive the ALGA Member price. Please select your association during registration.

ALGA reserves the right to request proof of eligibility for any discounted pricing at any time.

Keynote Speakers

Speaker

Victoria Lazenby

Director
Terravale Consulting

Victoria is an environmental health risk assessor with over 20 years of professional experience across consulting, research, academia, and government. Her primary work focuses on the assessment of the human health and ecological effects of chemicals in the environment, with a particular interest in assessing novel or emerging contaminants.

Victoria currently runs her own consulting firm, Terravale Consulting, while also being active in academia and industry roles. These additional roles currently include working on a PhD, teaching M.Sc. (Public Health) students at La Trobe and in PNG since 2013, reviewing new guidance documents for WHO, and developing risk assessment training materials for ANZ practitioners. Victoria was made a Fellow of ACTRA in 2018 and is regularly invited to present technical seminars, workshops, and training events across Australia and internationally.

Katie_Richardson

Katie Richardson

National Risk Assessment Practice Leader
Senversa and ACTRA Vice-President

Katie Richardson leads Senversa’s risk assessment practice, bringing over two decades of expertise in human health and ecological risk assessments. She has extensive recent experience in developing efficient and pragmatic assessment approaches for contaminants which accumulate in food. Katie is recognised by the Australasian College of Toxicology and Risk Assessment (ACTRA) on their Professional Register and currently serves as ACTRA’s Vice President.

TarahHagen

Tarah Hagen

Technical Director – Toxicologist & Risk Assessor
SLR Consulting and ACTRA President

Tarah is a certified toxicologist and fellow of the Australasian College of Toxicology and Risk Assessment (ACTRA) who has over 17 years’ experience in conducting screening and detailed human health and ecological risk assessments for a variety of industries and government. Included are industrial emissions, contaminated land and water, consumer goods and food. She has written and co-written numerous major reports, which have been influential in shaping Australian health risk assessment methodology and policy decisions in relation to environmental issues. Included are guidance documents for undertaking risk assessments, complicated risk assessments dealing with a variety of emissions to the environment, deriving the scientific basis for workplace exposure standards, interpretation of biological monitoring results for chemical exposures, toxicological reviews on various chemicals in relation to work and public health and safety, as well as research into clearance and distribution of per- and poly-fluorinated alkylated substances (PFAS) in livestock. She has also acted as an expert witness in a number of legal cases involving chemical emissions.

She is currently President of ACTRA and has been actively involved with ACTRA for over 12 years. She is a ministerial appointed member of the Industrial Chemical Environmental Management Standard (IChEMS) advisory committee and has regularly taught University Masters students in the fields of toxicology and epidemiology.

Jackie_Wright_1

Dr Jackie Wright

Director/Principal
EnRiskS

Jackie Wright is the Director/Principal of Environmental Risk Sciences Pty Ltd. She has more than 30 years of experience in human health and environmental risk assessment in Australia.

Experience includes the conduct of numerous risk assessments of varying complexity, leading and developing a national risk practice group for a major consultancy, providing professional training and direction, developing technical standards and guidance, developing appropriate risk models, and providing peer-review and expert evidence.

Jackie has been heavily involved in the development of national guidance and investigation levels as presented in the National Environment Protection Measure (NEPM) for Site Contamination (2013), CRC CARE Technical Guidance on Petroleum Vapour Intrusion and Silica-Gel Cleanup, Australian Crime Commission Assessment and Remediation of Clandestine Drug Laboratories (2011) and Australian Voluntary Code of Practice, Assessment, remediation and validation: Former clandestine drug laboratories and other methamphetamine contaminated properties.

Carolyn Brumley

Dr Carolyn Brumley

Senior Principal Risk Assessor
Senversa

Dr Carolyn Brumley is a senior principal at Senversa, specialising in human health and ecological risk assessment. She is a Fellow of the Australasian College of Toxicology and Risk Assessment and the co-chair of the ALGA Specialist Interest Group for Risk Assessment. She has focused on all things contaminant and risk-related throughout her career and is committed to using risk assessment to support overall environmental benefit.

Naomi Cooper

Naomi Cooper

Senior Associate Ecological Risk Assessor
Senversa

Naomi is an environmental toxicologist with over 20 years’ experience in private and university sectors. Naomi’s key experience has included designing and overseeing site contamination assessments on large sites and for clients with multiple sites, development of water quality guidelines, development of risk matrices, and ecological risk assessments on a range of contaminants in soil and water in both local and regional areas across Australia.

 

Getting There – Access the venue 

Venue
HWLE Sydney Office
Level 9, 5 Martin Place, Sydney NSW 2000

By Train / Metro

The venue is located directly above or adjacent to Martin Place Station, making it one of the most accessible locations in Sydney’s CBD.

Other nearby stations include:

  • Wynyard Station – approximately 8 minutes’ walk
  • Town Hall Station – approximately 10 minutes’ walk
  • Circular Quay Station – approximately 12 minutes’ walk

By Bus

Numerous bus services stop along Martin Place, Castlereagh Street, Elizabeth Street, and George Street, all within a short walking distance of the venue.

From Sydney Airport

From Sydney Airport:

  • Train: Take the Airport Link train to Central Station and transfer to a City Circle service, or continue via Metro connections to Martin Place. Travel time is approximately 25–30 minutes.
  • Taxi/Rideshare: Approximately 20–30 minutes depending on traffic.

Parking

Several public parking stations are available nearby, including facilities on Castlereagh Street, Elizabeth Street, and Phillip Street. Parking rates and availability vary.