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Environmental
Services

We can assist you to mitigate the impact of your projects on both the built and natural environment.

Our dedicated team of in-house environmental engineers, scientists, hydrogeologists, occupational hygienists, and auditors are ready to lend their expert skills to your projects. With a proven track record, we excel in guiding clients through the complexities of regulatory frameworks, enhancing compliance across the project lifecycle.

Embracing innovation, our environmental consultants specialise in various areas, including contaminated land management (site investigation, risk assessment, site remediation, and validation), waste management, salinity and acid sulfate soils, landfill services, marine/dredging, occupational hygiene, and environmental auditing.

Waste Management

Our Waste Management Services take the burden of navigating complex environmental regulations off your shoulders, while focusing on the core objective of sustainable waste management.

We understand the challenges businesses face when it comes to handling and treating contaminated sites or hazardous materials. Our dedicated team of consultants is here to support you with cost-effective waste management solutions tailored to your specific needs.

Our comprehensive waste management services encompass:

  • Waste classification of materials (e.g. materials testing spoil or contaminated fill) under relevant regulatory frameworks.
  • Resource recovery involving assessment of wastes (e.g. surplus soils / materials) for the purpose of beneficial re-use under relevant regulatory frameworks.
  • Waste minimisation on contaminated land remediation projects via design optimisation encapsulating contaminated soils (i.e. potential waste) in-place, and/or within strategically located engineered containment cells within the proposed final landform, to minimise waste generation and disposal costs.
  • Fill / waste quantity volume forecasting utilising probabilistic methods to assess uncertainty of fill depth (and/or contaminant concentrations) between data points to provide a theoretical distribution curve forecasting a range of potential outcomes upon excavation, based on an existing dataset.
  • Hazardous waste management and advice of waste treatment options.
  • Waste management planning.
  • Testing of surplus water from construction or dam dewatering for disposal / discharge requirements.

Marine Dredging and Environmental Studies

We provide effective solutions for clients seeking assessments of marine and estuarine sediments’ environmental impact. Our specialised services cover sediment contamination in various water bodies, including inland freshwater creeks, rivers, lakes, estuarine, coastal, and harbor areas, as well as marine environments.

With expertise in analysing sediment and pore water, we offer comprehensive insights into contaminant concentrations, empowering informed decision-making. Additionally, our understanding of fluvial processes enhances clients’ awareness of sediment dynamics in water bodies.

Our range of services, backed by an innovative drilling and field services unit, include:

  • Sampling, testing and assessment of freshwater, estuarine and marine sediments.
  • Acid sulfate soil assessment.
  • Specialist elutriate, bioavailability, toxicity and bioaccumulation testing in collaboration with our laboratory sub-contractors and research entities, depending on the complexity of the project.
  • Geotechnical investigation for dredging works design.
  • Harbour reclamation studies.
  • Dredged spoil disposal advice under the National Assessment Guidelines for Dredging framework.
  • Geophysical surveys of bottom sediment type and depth in collaboration with our trusted industry partners.
  • Advanced 3-D modelling of sediment deposits using modelling/data visualisation tools (e.g., Leapfrog Geo).
  • Sediment remediation feasibility studies for capping and in situ treatment or ex situ treatment.  Concept and detailed design, in collaboration with our specialist sub-consultants, where necessary.
  • Validation of sediment remediation.