Asbestos (NZ)

ALGA established this group to meet the challenges of New Zealand’s rapidly changing regulatory landscape on the management of asbestos. It's aim is to provide a stand-alone forum for a range of professions to work collectively on nationally consistent guidelines for regulation. It is also hoping to provide opportunities for practitioners to network, as well as a mechanism for collective industry advocacy focused on asbestos related regulation.

The benefits provided are (but not limited to):

  • Promote best practice within the NZ asbestos management industry
  • Provide communication and guidance on best practice to practitioners
  • Provide an industry forum where industry practitioners can network

The group is seeking input from you on what you consider are important focus areas for the group. The current objectives of the group are:

  • Assessment, management and removing asbestos in buildings
  • Assessment, management and remediation of asbestos in soil
  • Health and safety management and compliance for industry practitioners
  • Asbestos emergency management and clean-up
  • Develop and drive consistently high-quality approaches for laboratory analysis, in particular asbestos in building material, asbestos in impacted soil and air sampling.

Please have your say here.

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If you would like be a member of this group, and you are not currently an ALGA member click here.
If you are a current member of ALGA but would like to be added to this group email now.

Current Steering Commitee Members (renewed each calendar year):


Kim Allen (Chair), CEO at Overleaf Environmental Consultants Ltd

Kim has more than 30 years’ experience in senior managerial roles. With qualifications from Loughborough University in the UK (marketing, business studies) (NVQA level 4), Kim initially worked in the oil Industry, and then in corporate business. Subsequently, he was Sales and Marketing Director in a large corporation (22 years) and has been Managing Director for several SMEs across New Zealand and Australia. Kim worked on some of the largest oil terminals and engineering projects in Europe including the installation of one of the world first oil desalters, in Flotta Orkney oil refinery in Europe.

Simon Hunt, Jacobs

Simon is an Associate at Golder, and a current ALGA Director. He has over 28 years of contaminated land management experience gained within the industry, and consulting, principally working in the UK, NZ, Australia and South-East Asia. He has extensive hands-on experience dealing with site contamination issues, remediation, demolition and site redevelopment. His relationship with asbestos began in the early 1990s excavating/redeveloping former James Hardie asbestos dumps in Auckland. He has been intimately involved in NZ contaminated site policy (including the National Environmental Standard: Contaminated Sites) and guideline development since the mid-1990s and continues to assist various government agencies with this work. Simon was also intimately involved in working with EIANZ to deliver an accreditation system for NZ contaminated land practitioners, and routinely assists EIANZ with their CEnvP accreditation process.

David Dangerfield, Principal Environmental Consultant, Greencap

David is a contaminated land and property risk practitioner with more than 15 years’ experience. He has worked across a number of jurisdictions in Australia and New Zealand and holds a special interest in the development of solutions to the vexing issue of asbestos in soils. Due to continuing developments internationally, he is keen to share and contribute to a scientifically defensible approach.

David has assisted in the development of policy and guidance for Department of Defence in Australia, Canterbury Earthquake Recovery Authority (NZ), Work Safe NZ and other agencies and regulators to promote sustainable outcomes and to reduce the overall cost burden of this issue whilst protecting human health.

Colin Jowett, Certified Environmental Practitioner, Golder Associates NZ

Colin completed his BSc in Environmental Analytical Chemistry in 1998. Colin trained as an asbestos materials building surveyor in the south of England in 2003. He worked in the South of England for 5+ years across a number of companies from small/medium-sized family operated enterprises to nationwide consultancies. Colin has been involved in diverse projects in BBC Television Centre Wood Lane, The British Embassy in Macedonia, The Archbishops Palace in Canterbury, several UK MOD Military installations and barracks, commercial office and warehouse spaces, an indeterminate number of plant rooms, pump rooms, and boiler rooms, and hundreds of public housing stock residential dwellings. Colin gained British Occupational Hygiene Society (BOHS) accredited qualifications in the field related to building material surveying, polarising light microscopy (PLM) analysis of asbestos materials, and the management and validation of safe and compliant asbestos removal. 

Before leaving the UK to immigrate to NZ, Colin was instrumental in attaining and maintaining ISO 17020 and ISO 17025 accreditation for the surveying company with which he was employed in the position of Health, Safety, and Quality manager. Colin previously worked for Geosciences in contaminated land and has revisited his specialist knowledge of asbestos for a diverse portfolio of public and private clients. In 2016 Colin joined the Golder Associates NZ team as Senior Asbestos Practitioner/Licensed Asbestos Assessor. Colin is recognised as a Certified Environmental Practitioner under the Australasian CEnvP accreditation scheme, a member of the Australasian Land and Groundwater Association (ALGA), a sitting committee member of the New Zealand Asbestos and Advisory Group (NZAAG), and he would meet the criteria of an Asbestos Assessor under the new Regulations.

Graham Aveyard, Principal Specialist Environmental Health - Contaminated Land Health Risk, Auckland City Council

Graham Aveyard is the former Environmental Protection Team Leader at Cheshire West Council, the fourth largest local authority in north-west England. He has 25 years of environmental protection experience including noise, contaminated land, air quality, industrial pollution control, planning enforcement, public inquiries, prosecutions and appeals; this experience includes 10 years’ strategic management experience of Contaminated Land investigation, development, remediation and consenting. Graham now works for Auckland Council with a specific interest in contaminated land health risk with particular focus on managing the perceptions and risks involving asbestos and asbestos products in the community.

Jon C John, Director, Alpha Demolition

Jon is the Director of Alpha Demolition and has 33 years’ experience in the industry working onshore, offshore, underground (demolition, decommissioning, asbestos removal, land and soil contamination) in NZ and internationally. Jon is an ISO Health & Safety, HAZMAT Auditor, Inspector - GCC Level IV Certified ISO: 9001/ 18001 / 14001.

Jon’s impressive work history includes international NGO and GO Tier One experience: Commercial Project Manager for the British Foreign Commonwealth Office, UK & US Corps of Engineers, Country Manager – Regional Director & Contractor for the US Department of Defence, Ordinance Inspector at United Nations, Mines Advisory Group, USAID & Vision Africa, and Civil Engineer at NZCE.

Mike Mechaelis, Business Development Manager, Hills Laboratories

Mike began working in the environmental industry in 1986 in Seattle, Washington, heavily focused on emergency response, spill management and industrial cleaning. He gained a Project Management certificate from the University of Washington. Mike then became a senior manager ENSR/AECOM for Washington Oregon and California USA oil and gas work. He developed a successful small business providing in situ remedial pilot testing for consulting companies. Mike provided risk based solutions to Canterbury Earthquake Recovery Authority following the Christchurch earthquakes for contaminated sites including application of the Western Australian Guidelines for asbestos in soil related work. Mike initially developed AECOM New Zealand’s Occupational Health/Hygiene team, which focuses on asbestos related projects. He was also influential in having Hill Laboratories provide independent asbestos analyses and now work for Hill as Business Development Manager. Mike was one of the founding members of the ALGA Special Interest Group New Zealand Asbestos Advisory Group and is the current Chairperson for ALGA’s Auckland branch.

Paul Dahl, Environment Canterbury Regional Council

Since the Canterbury earthquakes Paul Dahl has been intensively involved in the management of asbestos processing, handling, the disposal of this and other contaminants as part of the legacy of waste from the earthquakes. Working with WEMT (Waste Environmental Management Team), a collaborative local, regional and central government authority, he led initiatives in relation to the disposal of waste materials and managing health and environmental risks associated with the earthquakes. He has acted in the role of a Senior Enforcement Officers warranted by Christchurch City and Canterbury Regional Council to act under the Building, Local Government, Resource Management, and various suite of Bylaws covering: health, waste etc.
He has been heavily involved in developing and improving best practice and establishing extensive networks and techniques for liaising with all aspects of the associated industries and establishing compliance under the available local body legislations, in Canterbury. Paul has 30 plus years’ experience in central government roles both at operational and management levels.  He has been involved with policy and quality management systems development based around conservation and backcountry services and facilities. This has included safety and risk auditing, and the development /review of some Australian and NZ Standards for structures.

Gareth Oddy, ENGEO

Gareth Oddy is a Senior Environmental Scientist working with ENGEO in Christchurch. Gareth, originally from the UK, has over 10 years’ experience working within the contaminated land assessment sector. In addition to NZ and the UK, he has worked on contaminated land and asbestos management projects in Australia, Fiji, Samoa, Tonga, Kiribati and Tuvalu.

Ben Judge, Protec Environmental Group APME

Ben co-owned a manufacturer of Industrial Vacuum systems. He spent the early part of his career, dirty and wet, in product development designing and installing dust management equipment to improve product quality, staff safety, or minimize maintenance costs. The companies cleaning and bespoke waste management solutions are currently used by many well known and international names in, mining, hire, food and beverage and plastics industries.

His work in product commercialization and manufacturing progressed to leading the implementation of ISO quality management and LEAN initiatives. His background in information sciences, system design, process control, helped achieve compliance objectives, keep insurers and customers happy, and achieve measurable productivity improvements. Ben is driven by two things; the belief that people want to ‘do right’, and through the right tools and feedback, they can. Secondly, the burden of increasing legislative, operational, and efficiency needs will be achieved through better technology.

All enquiries can be directed to ALGA at

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