Soil Remediation Services NSW

Soil remediation refers to the treatment and management of contaminated soil to reduce contaminant concentrations or prevent their migration. The method used depends on the contaminant type, soil conditions, volume, and whether the treated material can be reused.

At EBH, soil remediation services cover:

• check_circleContaminated soil remediation for redevelopment and construction sites
• check_circleOnsite soil remediation solutions including bioremediation and stabilisation
• check_circleOffsite soil remediation through processing at our North Wyong facility
• check_circleHydrocarbon contamination remediation and heavy metal soil remediation
• check_circlePFAS soil remediation under current HEPA and NSW EPA guidance
• check_circleSoil decontamination services coordinated with approved disposal pathways

All remediation activities are delivered in accordance with a Remediation Action Plan (RAP) or equivalent regulatory direction. EBH does not define remediation scope or prepare RAPs; that work sits with appropriately qualified environmental consultants.

Contaminated soil remediation requires matching the right treatment to the contaminant, the soil type, and the project's reuse or disposal requirements.

EBH delivers:

• check_circleBioremediation and biopile treatment: Biological breakdown of hydrocarbon contamination using controlled windrow and biopile methods, suited to petroleum, diesel, and oil-affected soils
• check_circleStabilisation and solidification: Binding heavy metals and other contaminants within the soil matrix to reduce leachability and enable safe reuse or controlled placement
• check_circleSoil washing remediation: Mechanical separation of contaminants from soil particles, reducing the volume of material requiring disposal
• check_circleExcavation and offsite processing: Removal of contaminated soil for treatment at our North Wyong resource recovery facility, where material is processed for reuse as certified recycled products
• check_circleChemical oxidation remediation: Application of chemical agents to break down organic contaminants in soil, used where biological methods are not effective

The treatment approach is determined by the contamination profile established during the environmental site investigation (ESI) and confirmed in the remediation action plan (RAP).

Soil contamination varies in type, concentration, and risk profile. EBH handles soil affected by:

• check_circleHydrocarbons: petroleum, diesel, oils, and fuel-related contamination from underground storage tanks, fuel depots, and industrial operations
• check_circleHeavy metals: lead, arsenic, chromium, cadmium, mercury, and zinc from industrial processes, mining, and legacy land uses
• check_circleAsbestos in soil: bonded and friable asbestos requiring specialist handling under SafeWork NSW requirements
• check_circlePFAS: per- and polyfluoroalkyl substances from firefighting foam, industrial coatings, and defence site operations
• check_circleVolatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs): from chemical manufacturing and fuel storage
• check_circlePolychlorinated biphenyls (PCBs): from electrical infrastructure and industrial equipment
• check_circleAcid sulfate soils: requiring neutralisation and management during excavation
• check_circlePesticides and herbicides: from agricultural and horticultural land

Contaminant identification is established through site contamination assessment, typically completed by an environmental consultant before remediation works commence.

Not every contaminated site requires soil to leave. The decision between onsite soil remediation and offsite processing depends on contaminant type, volume, site constraints, and project program.

Onsite remediation suits projects where:

• check_circleContaminants respond to biological or chemical treatment (e.g. hydrocarbon contamination remediation)
• check_circleSufficient staging area exists for biopiles, windrows, or treatment pads
• check_circleTreated soil can be validated and reused within the project footprint

Offsite remediation applies where:

• check_circleSite constraints prevent onsite treatment
• check_circleContaminants require processing at a licensed facility
• check_circleSoil volumes are manageable for transport to EBH's North Wyong facility
• check_circleTreated material will be converted to certified recycled products

EBH coordinates both pathways, ensuring treatment aligns with the remediation action plan and validation requirements regardless of where the work takes place.

Brownfield redevelopment and civil infrastructure projects across NSW frequently encounter legacy contamination that must be addressed before construction can proceed.

EBH provides soil remediation for:

• check_circleResidential and commercial redevelopment on former industrial land
• check_circleCivil infrastructure projects including road corridors, rail, and utilities
• check_circleCouncil and government sites with historical contamination
• check_circleTransport for NSW (TfNSW) and major infrastructure programs
• check_circleDefence and regulated sites requiring EPA compliant soil remediation

Under the Contaminated Land Management Act 1997 (NSW) and SEPP (Resilience and Hazards) 2021 (Chapter 4, formerly SEPP 55), land contamination must be assessed and addressed before changes in land use are approved. EBH delivers the physical remediation works required to satisfy these obligations.

Soil remediation follows a defined sequence from scope confirmation through to site validation. Each step must be documented, traceable, and aligned with the approved remediation action plan.

This process ensures remediation outcomes are defensible, auditable, and aligned with NSW EPA contaminated land guidelines throughout delivery.

The biggest single cost in contaminated soil management is disposal. Every tonne sent to landfill incurs classification-dependent tipping fees, transport costs, and levy charges. For large civil projects, these costs compound quickly.

Soil remediation offers an alternative. Where contaminants can be reduced through treatment, the soil can often be reclassified to a lower waste category or processed into certified recycled products: road base, bedding sand, aggregates, and engineered fill.

Treatment may be the right path when:

• check_circleContaminants respond to biological, chemical, or physical treatment
• check_circleSoil volumes are large enough to justify treatment infrastructure
• check_circleTreated material can be reused onsite or processed for recycled products
• check_circleThe project benefits from reduced transport and disposal costs

Disposal is required when:

• check_circleContaminant concentrations exceed treatment thresholds
• check_circleHazardous classification prevents onsite handling
• check_circleRegulatory conditions specify removal and disposal
• check_circleTime constraints prevent treatment turnaround

EBH operates at both ends of this decision. Where soil can be treated and reused, our North Wyong facility processes it into certified products that re-enter the supply chain. Where disposal is the only compliant option, our soil disposal services ensure it reaches the correct facility with full documentation. The cheapest tonne is the one that never goes to landfill.

Soil remediation costs are driven by several factors, and understanding them early helps manage budget exposure.

These key cost drivers include:

• check_circleContaminant type and concentration: Hydrocarbons are generally less expensive to remediate than heavy metals or PFAS. Higher concentrations increase treatment time and complexity.
• check_circleVolume: Larger volumes may justify onsite treatment infrastructure. Smaller volumes are often more cost-effective to process offsite.
• check_circleTreatment method: Bioremediation is typically the most economical approach for organic contaminants. Stabilisation and soil washing carry higher input costs but suit contaminants that resist biological breakdown.
• check_circleTransport distance: Offsite remediation costs are affected by the distance between the project site and the treatment facility.
• check_circleFacility acceptance fees: Processing fees at licensed facilities vary by classification and material type.
• check_circleValidation and reporting: Projects with complex regulatory requirements or multiple validation rounds incur additional documentation costs.

Early engagement with soil classification and remediation planning reduces the risk of cost overruns once excavation begins.

Successful soil remediation is measured by regulatory closure, not just excavation completion.

EBH supports remediation compliance with:

• check_circleRemediation documentation aligned with the approved RAP
• check_circleValidation sampling coordination with the project's environmental consultant
• check_circleChain of custody records for all soil movements between site, treatment, and disposal
• check_circleEnvironmental compliance documentation suitable for site audit and regulatory review
• check_circleReporting structured to support Site Audit Statements (SAS) under the Contaminated Land Management Act 1997

Remediation works are delivered in accordance with the National Environment Protection (Assessment of Site Contamination) Measure 1999 (NEPM) and NSW EPA contaminated land guidelines. Validation and verification reporting confirms that remediation objectives have been met and the site can proceed to construction or regulatory sign-off.

To confirm remediation scope and pricing, EBH typically requires:

• check_circleApproved Remediation Action Plan (RAP) or regulatory direction
• check_circleEnvironmental site investigation (ESI) reports with contaminant profiles
• check_circleSoil classification and waste codes
• check_circleEstimated volumes and excavation schedules
• check_circleSite access, staging, and sequencing details
• check_circleValidation and reporting requirements

Have a RAP already? Send it with your site investigation report and we can confirm the remediation approach, treatment pathway, and pricing. Contact our team.

Our soil remediation services support:

• check_circleCivil contractors delivering infrastructure and earthworks on contaminated land
• check_circleProperty developers managing brownfield and redevelopment sites
• check_circleEnvironmental consultants with active RAPs requiring a remediation contractor
• check_circleUtilities companies managing network upgrades across contaminated corridors
• check_circleLocal councils addressing legacy contamination on public land
• check_circleTransport for NSW (TfNSW) and government agencies on regulated projects
• check_circleSite auditors requiring documented, defensible remediation outcomes

EBH delivers soil remediation services across New South Wales, with our resource recovery facility based at North Wyong on the Central Coast.

We service projects across:

• check_circleCentral Coast: Berkeley Vale, North Wyong, Gosford, Tuggerah, and surrounding areas
• check_circleSydney and Greater Sydney: Western Sydney, South-West Sydney, Northern Beaches, and metro corridors
• check_circleHunter and Newcastle: Hunter Valley, Maitland, Cessnock, and Port Stephens
• check_circleIllawarra and Wollongong: Wollongong, Shellharbour, Kiama, and Shoalhaven
• check_circleRegional NSW: Projects requiring offsite soil treatment or specialist remediation coordination

For projects outside these areas, contact our team to discuss logistics and treatment options.