Nelson Environmental Remediation, Geraldton gold mine PCB soil remediation, Geraldton, Ontario, Canada: Nelson mobile thermal desorption system deployed at the Geraldton, Ontario gold mine site for PCB and hydrocarbon destruction.

Nelson Environmental Remediation, Geraldton gold mine PCB soil remediation, Geraldton, Ontario, Canada: Restored ground at the Geraldton, Ontario gold mine site following PCB and hydrocarbon remediation, regraded and ready for natural revegetation.

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Case Study

PCB Remediation at Remote Canadian Gold Mine

Mobile thermal treatment of separate PCB and petroleum-soil streams at a remote Geraldton, Ontario gold mine.

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PCB Remediation at Remote Canadian Gold Mine

A seven-month program

Capability Applied

Mobile Thermal Desorption→

PFAS & PCB Destruction→

Case Study Reel

Watch Canadian gold mine PCB remediation →

Site background and contamination

Legacy mine operations left PCB- and petroleum-hydrocarbon-impacted soil. Incoming PCB concentrations were 5 to 10 ppm, requiring a contaminant-specific treatment and verification program.

Site

Remote gold mine, northern Ontario

Contaminants

PCBs at 5 to 10 ppm, plus petroleum hydrocarbons

Nelson’s role and treatment selection

Nelson supplied project management, the RS-45 and operations alongside the remediation contractor, consultants, analytical providers and mine owner. On-site mobile thermal desorption addressed the organic contaminants at the remote site.

Nelson role

Thermal remediation contractor under the Ontario approval

Equipment, handling and logistics

PCB-impacted and hydrocarbon-impacted soil were segregated and treated against their respective criteria. Mobilization and operating support had to accommodate the remote mine setting.

Equipment

RS-45 mobile direct-fire thermal desorption unit

Sampling, permits and verification

The mobile on-site treatment program operated under an Ontario Environmental Compliance Approval. PCB results were assessed against site-specific treatment criteria rather than a generic limit for all mine soils.

Documented outcomes

The material comprised 24,000 tonnes of PCB soil and 36,000 tonnes of hydrocarbon soil. Post-treatment PCB concentration was 0.3 mg/kg. The treated ground was regraded for natural revegetation.

Material quantity

60,000 tonnes handled: 24,000 t PCB and 36,000 t hydrocarbon soil

Result

PCBs at 0.3 mg/kg. Soil returned and the site regraded for revegetation

Last updated · September 2026

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Remediation Strategy Navigator

Start from a site like this one

Run the same diagnostic our engineers ran here. Five questions on contaminant, matrix, site context, driver, and scale, and the Strategy Navigator shows which treatment path your conditions point toward.

· A shortlist of treatment paths ranked against your answers

· The reasoning behind every technology that surfaces

· A shareable link that reopens the same strategy

· A downloadable strategy brief at the end

Open the Strategy Navigator

Outputs are indicative. Reach out for site-specific refinements.

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