Environmental Consulting

Through analysis and assessment, we can mitigate and manage all environmental impacts on your site.

Our diverse Environmental Consulting teams include scientists, contamination specialists and geotechnical professionals to cover all aspects of your environmental site management requirements.

With our range of expertise, we can provide contamination monitoring, remediation works supervision, acid sulfate soils management and a range of other various services to help design and maintain a sustainable site infrastructure.

Our integrated knowledge of scientific and engineering disciplines, ensures that we can deliver the most economical and sustainable solution for every project.

Environmental Management

  • Client & stakeholder liaison
  • Expert witness & strategic advice
  • Technical reports, investigations & strategic advice to support design & planning approvals
  • Construction and demolition management

Impact Monitoring

  • Groundwater and surface water monitoring
  • Construction noise & vibration management plans & monitoring
  • Air quality assessments – asbestos, RCS, PM10, TSP and Gravimetric Dust
  • Thermologging

Environmental Approvals & Compliance

  • Contamination register and land title searches
  • Project environmental risk management
  • Construction & operation environmental management plans
  • Regulatory compliance and project permits


  • Acid sulphate soils investigation and management
  • Erosion and sediment control
  • Hazardous building and material assessments
  • Asbestos management
  • Preliminary site investigations (PSI)
  • Detailed site investigations (DSI)
  • Contaminated land & groundwater evaluation
  • Remediation design, supervision & validation
  • Pre-acquisition & divestment due diligence
  • Waste disposal categorisation and soil disposal permits

Considering every element

Our environmental consultants are responsible for the assessment and management of land and groundwater contamination, as well as noise, vibration and dust impacts. Our environmental services team work with public and private clients across a wide range of industries including land development, oil & gas, local government and infrastructure providers.

We pride ourselves in our technical proficiency and professionalism, drawn from combined experience and integrated knowledge across disciplines. In particular the combination of technical scientific understanding with practical engineering intelligence ensures that we deliver the most environmentally and commercially viable solution for our clients.

David DethlefsPrincipal Environmental Scientist

David has experience in the investigation and implementation of a broad range of environmental disciplines. Having been involved in an extensive and diverse range of projects over 20 years, advising and assisting clients to implement construction programs and manage their program of works such that environmental approvals and environmental compliance are achieved. Fields of expertise include: hazardous materials, Contaminated Land, Landfill sites, Acid Sulphate Soils and Environmental Investigations (CLID’s) and Construction Environmental Management Plans. Liaising with contractors to develop programs to control and manage environmental criteria identified on site or in the workplace. David’s extensive experience on large scale projects with key skills including: - Preliminary Site Investigation (Contamination) - Detailed Site Investigation (Contamination) - Implementation of Remediation Action Plans - Asbestos in Soil Remediation, Site Monitoring and Site Clearance Inspections - Air Quality Monitoring – Landfill Gas, Asbestos, Confined Space and Construction Control - Preparation and implementation of Environmental Management Plans, Health Safety and Environmental Management Plans - Acid Sulfate Soils Investigations and Management Plans - Water quality investigations and Monitoring for a broad range of impacted sites ranging from Landfill leachate assessments, Contaminated Land Monitoring and Erosion and Sediment Control / offsite water discharge. - Site Management Plans - Asbestos Remediations Control Plans - Asbestos Building Surveys - PFAS Investigations, Remediation and Validation - Knowledge of State and Federal guidelines, regulations and Acts pertaining to Environmental controls

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Craig CowperPrincipal Environmental Scientist

Craig has 24 years of experience in management of contaminated land and general environmental projects, with proven skills as a project director, technical lead and project manager. Craig is also a Certified Environmental Practitioner - Site Contamination Specialist. His experience includes contamination risk management, land transaction due diligence, and contaminated land management across the property, urban renewal, infrastructure, manufacturing, petroleum, waste and residential sectors. Craig has worked on projects across Australia, with a particular focus on metropolitan and regional areas of NSW. His work has included management of multi-disciplinary projects incorporating contaminated land, geotechnical engineering, hazardous materials, occupational hygiene, risk assessment, waste management and construction materials testing. Craig's responsibilities include providing project direction, technical advisory and project management services for clients.

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Christine HowlandSenior Environmental Engineer

Christine has over 10 years' experience as an environmental engineer with professional expertise in numerous facets of the environmental field. With practical experience stemming from industries such as construction, manufacturing, water and wastewater treatment, Christine brings a solutions based approach to the environmental needs of clients and key stakeholders. Christine's key skills include, but are not limited to: - Preliminary and Detailed Site Investigations (contamination) - Environmental health risk assessments - Water and wastewater environmental monitoring and assessments - Waste management and disposal assessments - Hazardous chemicals management - Noise and vibration assessments and implementation of associated management plans - Development and implementation of Construction Environmental Management Plans - Development and implementation of Environmental Management Systems certifiable to ISO14001 - Compliance to legislative and other obligations - Environmental auditing and assessments

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