Waste Classification

What is waste classification?

Waste classification is the process of characterising a waste material — most commonly excavated soil, spoil, stockpiled fill or demolition material — and assigning it to a regulatory category that determines how it may lawfully be managed. For soil leaving a development, infrastructure or remediation site, classification answers two practical questions: where can this material legally go, and what will that cost?

The category is not a guess. It is established through a structured programme of sampling and NATA-accredited laboratory analysis, with the results compared against the thresholds set out in the relevant state framework. Because those thresholds differ between New South Wales and Victoria, material is always classified against the rules of the jurisdiction in which it will be disposed of or reused. A correct classification protects the landholder, the contractor and the receiving facility, and it is a document that regulators, waste facilities and auditors rely on.

Waste classification frequently follows a Detailed Site Investigation, where soil has already been shown to contain elevated concentrations of contaminants and needs to be moved. It is equally relevant to clean projects, however, where the goal is simply to confirm that surplus soil is suitable for reuse rather than defaulting to expensive landfill disposal.

When do you need waste classification?

You will generally need waste classification whenever soil or spoil must leave a site, or where surplus material is proposed for reuse. Common triggers across the region include:

• Excavation and earthworks that generate more spoil than can be reused on site — for basements, footings, dams, roads and services;
• Disposal of surplus soil to a licensed landfill or resource-recovery facility, which will not accept material without a valid classification;
• Reuse of soil on another site, where you need to demonstrate the material meets the criteria for VENM, ENM or clean fill;
• Development and infrastructure projects — subdivisions, commercial builds, roadworks and utility works — where large volumes of material must be tracked and disposed of lawfully;
• Remediation projects, where contaminated soil is excavated for off-site disposal or treatment.

For developers and civil contractors working around Albury, Wodonga, Wangaratta, Yarrawonga and Shepparton, disposal is often one of the larger and least predictable line items in a project budget. Classifying material early — before the excavator arrives — turns that uncertainty into a known cost and a defensible plan.

Waste classification in NSW

In New South Wales, waste is regulated under the Protection of the Environment Operations Act 1997, and classification follows EPA NSW's Waste Classification Guidelines (2014). The guidelines assign waste to one of several classes:

• Special waste (such as asbestos waste and certain tyres);
• Liquid waste;
• Hazardous waste;
• Restricted solid waste;
• General solid waste, either putrescible or non-putrescible.

For excavated soil, classification uses chemical analysis that measures both total contaminant concentrations and leachable concentrations (using the TCLP and SCC tests), compared against the thresholds in the guidelines. Where natural material is not contaminated, it may be managed as Virgin Excavated Natural Material (VENM) and reused without further approval. Where natural material meets specified criteria, it may be lawfully reused as Excavated Natural Material (ENM) under an EPA resource recovery order and exemption. Correctly establishing VENM or ENM status can dramatically reduce disposal costs on NSW projects around Albury, Thurgoona, Howlong, Corowa, Holbrook and the broader southern NSW area.

Waste soil categorisation in Victoria

In Victoria, waste and soil are regulated under the Environment Protection Act 2017 and the Environment Protection Regulations 2021, administered by EPA Victoria through its industrial-waste and priority waste framework. Rather than the NSW class system, Victorian contaminated soil is generally categorised — for example as Category A, B or C contaminated soil — or assessed as fill material or clean fill, with disposal categories determined in accordance with EPA guidance.

Under the Act, generators and handlers of waste carry a general environmental duty, and specific priority waste and reportable priority waste duties apply to how certain materials are classified, tracked and consigned. As in NSW, the category is established by sampling and NATA-accredited laboratory analysis against the relevant thresholds. For projects in Wodonga, Wangaratta, Benalla, Yarrawonga, Mulwala and Greater Shepparton, we assess material against the Victorian framework so it can be directed to an appropriately licensed facility or reused where the results allow.

Being based on the border, we routinely classify material for projects on both sides of the Murray and are equally comfortable with the requirements in either state. If your project straddles the two, you deal with one team that knows both frameworks.

Sampling and laboratory analysis

A classification is only as good as the sampling that supports it. We design a sampling and analysis plan that reflects the volume and variability of the material, the history of the site, and the guideline being applied. The number of samples is scaled to the tonnage or the size of each stockpile, with a higher sampling density where the material is heterogeneous or contamination is suspected.

For each characterisation we typically:

• Review the site history and any earlier investigation to target the right analytes;
• Collect representative samples from in-situ soil or from formed stockpiles, following a documented pattern;
• Analyse for the relevant suite — which may include heavy metals, total recoverable hydrocarbons, BTEX, PAHs, OCPs/OCPs, asbestos and, where warranted, PFAS;
• Run leachate testing (TCLP/SCC) in NSW where total concentrations approach the relevant thresholds;
• Compare results against the applicable NSW classes or Victorian categories.

All laboratory testing is undertaken by a NATA-accredited laboratory, and results are interpreted by an experienced environmental scientist, not read off a spreadsheet. Where a stockpile returns a mixed result, we can advise on segregation so that clean material is not penalised by a small volume of impacted soil.

Disposal and reuse pathways

The purpose of the exercise is to identify the most lawful and cost-effective destination for every parcel of material. Depending on the results, the likely pathways are:

• On-site reuse — clean material retained and reused within the project, avoiding haulage entirely;
• Off-site reuse as VENM or ENM (NSW) or fill material (Victoria) — the lowest-cost off-site option where the material qualifies;
• Disposal to a licensed landfill at the appropriate class or category — general solid, restricted solid or, for impacted material, a higher-order facility;
• Specialist disposal or treatment for hazardous, asbestos-affected or PFAS-affected material at a facility licensed to receive it.

Because disposal cost rises steeply with each higher classification, an accurate result frequently pays for the assessment many times over. Just as importantly, it gives contractors and landholders confidence that material has been managed lawfully and can be traced if questions are ever asked.

Our methodology

Every Jones Environmental waste classification follows a structured, defensible methodology:

1. Scoping. We confirm the volume and location of material, review site history and any prior investigation, and identify the jurisdiction and guideline that apply.
2. Sampling plan. We prepare a sampling and analysis plan scaled to the material and designed to meet the relevant NSW or Victorian requirements.
3. Field sampling. Using our in-house field capability, we collect representative samples from in-situ soil or stockpiles under documented procedures.
4. Laboratory analysis. Samples are submitted to a NATA-accredited laboratory for the agreed analytical suite, including leachate testing where required.
5. Classification. Results are compared against the applicable classes or categories, and each parcel of material is assigned a classification.
6. Reporting. You receive a clear classification report identifying lawful disposal and reuse pathways, suitable for waste facilities, auditors and regulators.

Why choose Jones Environmental Consulting

Jones Environmental Consulting is an owner-operated environmental consultancy based in Albury Wodonga, on the NSW–Victoria border. Waste classification sits alongside our contaminated land and monitoring work, and every assessment is carried out by a qualified environmental scientist.

Patricia Jones, our Principal Environmental Scientist and Director, brings around two decades of environmental consulting experience across the region, spanning contaminated land, groundwater and waste characterisation for local government, state agencies, developers and landholders. Russell Jones, Senior Environmental Scientist and Field Operations Manager, has around fifteen years of field experience and runs our in-house drilling and soil-sampling capability — which means faster mobilisation and tighter control over the quality and timing of sampling.

Clients choose us because we offer:

• Regulatory fluency on both sides of the border — NSW waste classes and Victorian soil categories, one team, no gaps;
• Cost-focused advice — we work to keep material at the lowest lawful classification and to unlock reuse wherever the results allow;
• In-house field capability — our own sampling equipment means quicker turnaround, even on tight sites;
• Direct senior involvement — you deal with the scientist doing the work, from first call to final report;
• Defensible reporting — clear documentation that waste facilities, auditors and regulators can rely on.

If your project involves excavated soil that has to move, talk to us before it does. A classification obtained early protects the budget, the programme and everyone in the chain. Where the material forms part of a wider contamination issue, our contamination assessment service can address the site as a whole, and where ongoing water quality needs to be tracked, our groundwater monitoring team can carry the work forward.