FAQ

Envirogreen accepts a wide range of contaminated soils, sediments, sludges, and solid industrial waste materials for thermal desorption treatment. All materials must be solid or semi-solid, without free liquids, physically and chemically stable, and characterized by representative analytical laboratory data.

Envirogreen only accepts solid or semi-solid waste materials. Materials containing free liquids, including fuels or oils, are not accepted and must be removed or stabilized prior to shipment. Bulk liquid waste is also not accepted.

Yes. Waste material must be stackable and able to maintain its structure when offloaded. Slurries, wet mud, or sludges may require stabilization using absorbent or bulking agents before transport.

Materials containing debris or organic matter are assessed on a case-by-case basis. Oversized materials are screened upon receipt, and additional handling or disposal costs may apply depending on volume and type.

Thermal desorption is best suited for contaminants that can be volatilized and destroyed by heat, including hydrocarbons, volatile organic compounds (VOCs), semi-volatile organic compounds (SVOCs), and polycyclic aromatic hydrocarbons (PAHs), as well as certain trace organics such as PFAS and pesticides such as dichlorodiphenyltrichloroethane (DDT), depending on concentration and material conditions.

Contamination is identified through analytical laboratory testing that measures exceedances of regulatory standards for hydrocarbons, VOCs, SVOCs, PAHs, PFAS, and heavy metals. Materials that exceed these standards are considered contaminated and may require specialized handling and management.

Representative analytical laboratory data must accurately reflect the material being shipped and include contaminant concentrations determined by an accredited laboratory using approved testing methods. This typically includes total and leachable results, as applicable, for extractable petroleum hydrocarbons (EPHs), benzene, toluene, ethylbenzene, and xylene (BTEX), as well as hydrocarbons, VOCs, PAHs, and metals.

Waste characterization is the process of assessing the physical and chemical properties of a material. Physical properties include state, such as solid, liquid, or gas, moisture content, and substrate type, such as gravel, sand, or sediment. Chemical properties include hydrocarbon content, pH, flammability, and reactivity.

Waste characterization ensures materials meet Envirogreen’s acceptance criteria and regulatory Permit requirements by confirming their physical and chemical properties before shipment as part of its quality assurance and quality control process. Only materials that are properly characterized and meet acceptance criteria are approved for receipt.

The waste generator is responsible for waste characterization, which may be completed directly or with support from a consultant or agent. Envirogreen staff are also available to provide guidance as needed.

The waste generator is responsible for submitting the Waste Approval Application. Consultants or agents may assist with preparing the submission, and Envirogreen staff are available to support the process.

Envirogreen operates under a Permit issued by the BC Ministry of Environment and treats materials to meet Hazardous Waste Regulation and Contaminated Sites Regulation standards. Materials are verified through laboratory testing to confirm they are no longer hazardous, where applicable, and meet the required standards for the contaminants of concern.

Envirogreen verifies treatment through post-treatment sampling and laboratory analysis as part of its quality assurance and quality control program. Analytical results are compared to applicable standards to confirm the material has been effectively treated.

Envirogreen can provide a Certificate of Destruction once treatment has been verified.

Envirogreen can coordinate a Certificate of Disposal if treated material is directed to an authorized landfill, which is issued by the receiving facility. This may be requested by the customer where landfill disposal is preferred over beneficial reuse in land reclamation.

Treated soil is blended with amendments and reused in land reclamation projects, supporting landfill diversion and beneficial reuse of materials.

Yes. Contaminants liberated during thermal treatment are oxidized by combustion, and the resulting energy is reused to support the ongoing treatment process.

Envirogreen’s process supports sustainable waste management through landfill diversion, energy recovery, and beneficial reuse of treated materials.

Envirogreen can coordinate transportation through licensed and approved partners for both hazardous and non-regulated waste materials.

Pricing is provided on a project basis and depends on material type, contamination level, and volume. Pricing is subject to an approved Waste Approval Application.

Waste approval can take as little as one to two days when complete documentation and analytical data are provided.

Once approved and billing information has been confirmed, material is scheduled into the facility based on availability and project timelines.