Contaminated Land
We will find the best solutions for your contaminated land issues.
Our team of highly skilled and experienced professionals consisting of Engineers and Scientists provide the best available technical and practical advice to support and guide our clients through the vast complexities of contaminated land management in New Zealand. We have built a reputation as the industry leaders at the forefront of legislation, guidance and industry best practice across the sector. Our proven track record of a quality service offering over many years and ongoing partnerships with a large range of clients through public and private sector, mean we have the strongest reputation of all providers in New Zealand. Our team comprises ‘Suitably Qualified and Experienced Practitioners’ (SQEPs), Competent People, licenced surveyors and assessors to provide assurance and necessary qualifications to sign off any project.
We investigate, assess, and provide management solutions for a diverse range of contaminated sites including for the petroleum industry, commercial/industrial and large-scale residential developments, former market gardens, horticultural and timber treatment sites, former gasworks sites, pesticide storage depots, landfills, asbestos-impacted soils and asbestos building surveys/clearances, and illicit methamphetamine laboratories with experience attained over several thousand sites.
Our team was one of the earliest specialised firms in New Zealand focusing in contaminated land and as a result we are one of the largest most experienced consultancies at the leading edge of practice in New Zealand. We maintain an edge by participating in the advancement of professional practice in New Zealand through contributions to workshops, conferences, guideline document development, membership of expert panels and submissions to consultation documents.
Services that we provide:
- Preliminary Site Investigations (PSI) to determine contamination sources from past and present land use activities
- Identification of Hazardous Activities and Industries List (HAIL) land uses
- Conceptual Site Models to assess risks to human health and the environment
- Detailed Site Investigations (DSI) involving intrusive site investigations of soil, soil/ground gas, groundwater, air, sediment and surface water conditions
- Assessment of environmental effects (AEE)
- Preparation of Remedial Action Plans and Site Management Plans
- Design, construction and supervision of remedial works (e.g. excavation, land farming, pumping and treating of groundwater)
- Fate and Transport contaminant modelling
- Pre-purchase/due diligence contaminated land property assessments
- Preparation of resource consent applications under the NES Regulations, territorial and regional authorities
- Asbestos investigations, management plans and risk assessments associated with asbestos-containing material in soils
- Asbestos building management, demolition and refurbishment surveys, Class A and B clearances, air monitoring and expert advice on asbestos issues
- Illicit methamphetamine impacted property assessments
- Monitoring of air, groundwater and surface water
- Independent technical peer review of consultant reports
- Training programmes on the management of contaminated sites
- Provision of expert evidence for hearings, District Court and the Environment Court
Bo Simkin
Technical Director - Contaminated Land
Wellington
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Bo Simkin
Technical Director - Contaminated Land
Wellington
Bo has over 10 years of multi-disciplinary experience primarily in the field of contaminated land. His academic qualifications were gained through two British universities via a specialist pathway which provides training for a career in pollution control and environmental management. Bo is a specialist in contaminated land assessment, remediation and management with experience gained from both the public and private sectors of the United Kingdom, Canada and New Zealand.
Based in Wellington, Bo currently manages PDP’s contaminated land portfolio for the central New Zealand region. Working on numerous and diverse soil and groundwater projects with a client base that includes the public, developers, planners, local and central government and multi-national companies, with investigations ranging from desk studies through to Ministry for the Environment contaminated site remediation fund projects.
Erin Richards
Technical Director - Contaminated Land
Auckland
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Erin Richards
Technical Director - Contaminated Land
Auckland
Erin is a geologist with over 20 years' of consulting experience in New Zealand. Erin’s areas of expertise relate to project management, contaminated site investigations and remediation. While she has worked on a wide variety of contaminated sites over the years, her main area of expertise is the petroleum industry, where she has completed hundreds of site investigations at service stations, terminal facilities, bulk depots and industrial sites.
Erin has extensive project management experience and is adept at delivering multiple and complex projects, which involve proposal completion, the design and implementation of field programmes, adherence to health and safety, technical input, remediation works, project management, liaison with stakeholders, peer reviews, consenting and the completion of risk assessments.
Gerard Stark
Technical Director - Contaminated Land
Christchurch
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Gerard Stark
Technical Director - Contaminated Land
Christchurch
Gerard is an environmental scientist with over 19 years of consulting experience in contaminated site investigations throughout New Zealand and Australia. Gerard has extensive experience in environmental site assessments (preliminary and detailed site investigations), site remediation projects and risk assessments for a variety of sites, including commercial/industrial redevelopments, former market gardens, petroleum sites, timber treatment sites and residential subdivisions. He has also conducted numerous asbestos building audits, inspections, identification and air monitoring as well as environmental investigations and risk assessments associated with asbestos-containing material in soils.
Guy Knoyle
Technical Director - Contaminated Land
Christchurch
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Guy is a Contaminated Land Technical Director with over 20 years of consulting experience in environmental and contaminated site investigations. Currently, he project manages a large portion of diverse contaminated site assessments including commercial/industrial and large-scale residential developments, former market gardens, horticultural and timber treatment sites, pesticide storage depots, landfills (waste characterisation/disturbance management and landfill gas assessments), the petroleum industry, former gas works sites, asbestos impacted soils and illicit methamphetamine laboratories, with experience attained over several hundred sites.
Guy’s knowledge has also allowed him to present technical evidence on behalf of various clients, as part of a multi-disciplinary team, at District Court, Environment Court mediation, Restorative Justice and at numerous joint territorial and regional authority hearings.
Guy has also established a broad network of industry-related contacts which enables him to draw upon a wider skill set, if need be, to provide further confidence to the client that the best level of experience is being provided to them.
Guy strongly adheres to PDP’s stringent health and safety philosophy and ensures that all field staff are fully conversant with potential onsite risks before commencing fieldwork.
Hamish Wilson
Technical Director - Contaminated Land, Director
Auckland
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Hamish Wilson
Technical Director - Contaminated Land, Director
Auckland
Hamish is an environmental engineer with over 18 years of experience in the field of contaminated land assessment and remediation. He specialises in the investigation, assessment and remediation of contaminated land and has particular expertise in undertaking site investigations, assessment, remediation and site-specific human health and environmental risk assessments and detailed chemical fate and transport computer modelling. This has required Hamish to work on and manage several hundred contaminated land projects throughout New Zealand – including petrochemical storage facilities, chemical storage manufacturing and recycling plans, timber treatment sites, gas works manufacturing, leather tanneries, landfilling operations and other commercial/industrial sites.
In addition, Hamish has civil and construction engineering experience and has supervised several wastewater treatment upgrade projects with project roles including detailed design, Engineers Representative and Engineer to the Contract.
Natalie Webster
Technical Director - Contaminated Land, Director
Auckland
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Natalie Webster
Technical Director - Contaminated Land, Director
Auckland
Natalie is an Environmental Scientist with over 10 years of experience in contaminated site investigations and environmental management, for both regional authorities and consultancy. Her areas of expertise include all aspects of contaminated land management (soil, groundwater and vapour; from Preliminary Site Investigations to remediation), environmental management of industrial sites, environmental site audits, stormwater and surface water sampling, and the production of technical reports, including Assessments of Environmental Effects.
Natalie has extensive experience, both in the field and as a project manager, with organising and undertaking site investigations and environmental assessments for a wide range of environmental issues, and across many varied industry types. She is regularly involved with determining the requirements of relevant national standards, and regional and district plans, concerning environmental investigations. In addition, she has experience in the preparation of evidence and has appeared as an expert witness in District Court hearings.
Nerena Rhodes
Technical Director - Contaminated Land
Central Otago
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Nerena Rhodes
Technical Director - Contaminated Land
Central Otago
Nerena is an environmental scientist with over 17 years of experience working in the investigation, management, remediation and consenting of contaminated sites. Nerena’s experience includes managing large, complex environmental investigations and monitoring programmes to achieve excellent outcomes for clients.
Nerena’s experience includes the investigation and management of discharges from contaminated sites associated with construction, industrial and military activities and historic land use, working with a wide variety of organisations including local and central government agencies, property developers, and primary producers.
Scott Wilson
Technical Director - Contaminated Land, Director
Christchurch
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Scott Wilson
Technical Director - Contaminated Land, Director
Christchurch
Scott is an environmental engineer with over 10 years of experience in environmental and contaminated site investigations in New Zealand. He specialises in project management, contaminated site assessment & remediation investigation and design for the petroleum industry, large-scale residential subdivision developments and landfills. He particularly specialises in the petroleum hydrocarbon industry where he currently project manages jobs for a number of the major petroleum providers in New Zealand.
Susie Humphrey
Service Leader - Contaminated Land
Tauranga
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Susie Humphrey
Service Leader - Contaminated Land
Tauranga
Susie’s PDP experience extends across a broad spectrum of environmental fields, including contaminated land, environmental due diligence, environmental site audits, and environmental management of civil infrastructure and commercial/industrial site developments. She has extensive experience with managing and undertaking site investigations and environmental assessments for a wide range of environmental issues. She is regularly involved with determining the requirements of relevant national standards, and of regional and district plans, concerning environmental investigations. Since joining PDP she has also been assisting with tendering on work involving multi-disciplinary approaches.
Susie has 10 years of experience in contaminated land and is a Certified Environmental Practitioner under the Environment Institute of Australia and New Zealand. During 2018-2019 Susie was a Bay of Plenty Australasian Land and Groundwater Association (ALGA) committee member and part of her role was to help organise a regional conference and local events.