AUCKLAND IN PERSON BRANCH EVENT - Soil Aggressivity in New Zealand – A Panel Discussion | ALGA
Building leaders in the sustainable management of contaminated land and groundwater

AUCKLAND IN PERSON BRANCH EVENT - Soil Aggressivity in New Zealand – A Panel Discussion

Who Knew your Soils were so Aggressive | Perspectives and Case Studies

Aggressive soils can be the result a complex range of factors, including natural processes (acid sulphate soils) or presence of contaminants in soils. Learning to identify and appropriately manage soil aggressivity is a critical on many project where we break ground, specifically in regard to the design of sub-surface infrastructure. In New Zealand, the understanding and management of soil aggressivity issues is inconsistent.

As part of this event you will hear from a panel of speakers providing a range of perspectives on what aggressive soils are, the regulatory context in New Zealand, building code considerations, laboratory perspectives, and case studies, followed by a facilitated panel discussion with the audience. This is an event you will not want to miss.

Drinks and Nibbles will be served during the networking session.

If you have any issues at all during the registration process, please email for assistance.

About the Speakers:



Jonathan Caldwell
Senior Scientist



Dr Jonathan Caldwell is a Senior Scientist (Environmental Chemist) in the Science section at Waikato Regional Council. He provides science support for the Council’s air quality, contaminated land and diffuse contaminant monitoring programmes and provides advice on environmental chemistry matters in general. Jonathan started with Waikato Regional Council in January 2007. Prior to this he worked for seven years as a keratin fibre research scientist at the Wool Research Organisation in Lincoln. He has a DPhil in Chemistry from the University of Waikato.


Simon Hunt
Technical Director
EHS Support



Simon Hunt – over 30 years of international contaminated land experience gained in industry and as a consultant. Simon is a Chartered Geologist and Certified Environmental Practitioner-Site Contamination Specialist. He has been working with contaminated land and natural aggressive ground conditions since the mid-1980s.




Andrew McMenamin
National Technical Director



Andrew McMenamin is a graduate of the University of Canterbury, and he has practised as a consulting structural engineer since 1997. Andrew is chartered in both the UK and New Zealand, and his experience covers bridges, civil infrastructure and buildings; constructed with steel, concrete and timber; in New Zealand, Australia and the United Kingdom. Andrew is currently a principal shareholder and technical director with GHD, based in Christchurch.




Andrew Rumsby
Principal Environmental Consultant
EHS Support



Andrew Rumsby is an environmental chemist with over 20 years’ experience investigating contaminated sites and water discharges. His expertise includes assessing the ecological and human health impacts of chemical exposures, environmental fate and transport modelling and use of environmental forensic techniques to identify the source of contaminants. Andrew also has experience in advanced geochemical, eco-toxicological, acid sulfate soils assessments, environmental fate and speciation modelling, and bioavailability assessments.




Myles Clark
Acid Sulphate Soils Supervisor


Myles is an Acid Sulfate Soil scientist of more than 17 years with experience in both Acid Sulfate Soils and Acid Rock (mine) Drainage methods and projects. He has been involved with Acid Sulfate Soils, Laboratories setups, training, consulting and sample testing in Australia, Asia, Europe and North America and Africa. He specialises in both, Commercial Acid Sulfate Soil Testing as well as research projects for clients who may have difficult/sensitive sites and samples matrices that affect standard testing.

 His passion is to produce quality results and support people before during and after testing with any information required.


Thank you to our Partner!

Tuesday, March 21, 2023
5:15pm - 7:30pm

Level 2, GHD Centre - 27 Napier Street,
Freemans Bay, Auckland 1011,
New Zealand

FEES (incl. GST):
ALGA Member NZ$40.00
ALGA Student Member NZ$15.00
Branch Welcome Attendee: NZ$25.00
Non-Member NZ$80.00

Monday, 20 March 2023

Up to 1.5 CPD points

Michael Rossi
+61 490 802 518

ALGA Industry Directory

ALGA Partners

P.O. Box: 3199, Robertson, NSW 2577
+ 61 2 4885 1136


ACN 151 172 735
ABN 70 240 612 745
IRD 116 017 768

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