Contaminated Land

Our highly skilled and experienced practitioners (including CEnvP-SC Suitably Qualified Environmental Practitioners) provide the best available technical and practical advice.

We support and guide our clients through the complexities of contaminated land management including emerging contaminants in New Zealand. We have built a reputation as the industry leader at the forefront of legislation, guidance, and industry best practices across the sector.

Services that we provide:

Preliminary Site Investigations (PSI) and Detailed Site Investigations (DSI) in accordance with the National Environmental Standard (NES) Soil Contaminant Standards.

PSIs to determine contamination sources from past and present land use activities
Detailed Site Investigations (DSI) involving intrusive site investigations of soil, ground gas, groundwater, air, sediment and surface water conditions
Pre-purchase/due diligence contaminated land property assessments
Advice on optimise soil management and disposal options to assist with all land development projects

Environmental Monitoring and Contaminant Modelling

Monitoring of contaminants in air, groundwater, ground gas and surface water
Fate and Transport contaminant modelling

Risk Assessment

Conceptual Site Models to assess risks to human health and the environment
Detailed Tier 2 and 3 risk modelling of environmental and human health riss

Regional Consents, NESCS Consents and HAIL Assessments

Preparation of resource consent applications under the NES Regulations, territorial and regional authorities
Assessment of environmental effects (AEE)
Identification of Hazardous Activities and Industries List (HAIL) land uses
Provision of expert evidence for hearings, District Court and the Environment Court
Independent technical peer review of consultant reports

Remediation and Management

Preparation of Remedial Action Plans and Site Management Plans
Design, construction and supervision of remedial works (e.g. excavation, land farming, encapsulation, stabilisation, pumping and treating of groundwater)

PFAS and other Emerging Contaminants

Leading experts in the investigation and management of PFAS in the New Zealand environment
Full service from desktop assessment, sampling investigations, contaminant modelling, remedial options assessment, through to remediation, management and long term monitoring
Independent technical peer review of consultant reports

Asbestos building and ground contamination

Licenced Asbestos Assessors, building surveyors, professional advisors.
Asbestos management, demolition and refurbishment surveys, Asbestos removal management plan review, Asbestos remedial assessments, monitoring, and clearances including clearance certificates.
Risk assessment and remediation management of asbestos contaminated soils
Asbestos awareness training

Related projects

MfE Waste Composition and Landfill Gas Assessments

Completion of tailored SWAP surveys including visual surveys and sort-and-weigh audits at Class 2, 3 and 4 landfills to provide a real-time assessment of incoming waste composition.

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Environmental Assessment at Service Station Site

PDP was commissioned to undertake an environmental assessment following the discovery of contamination in soils located immediately adjacent to an operating service station.

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