Alan Parkinson became the federal government’s key representative on the Maralinga cleanup project in 1993, after Britain’s atomic-weapons tests had left radioactive contamination in South Australia. According to Parkinson’s account, the original plan called for collecting contaminated soil, placing it in a 15-metre-deep trench, and treating several thousand tonnes of plutonium-contaminated debris through in-situ vitrification. By 1997, cost-cutting and disagreements over the project’s direction had intensified, and the incoming Howard government removed Parkinson from the project.
Parkinson later argued that the replacement approach was technically inadequate and amounted to burying untreated, long-lived radioactive debris. He raised the allegations through the Australian Broadcasting Corporation and published Maralinga: Australia’s Nuclear Waste Cover-up in 2007. The department retained a project manager whom Parkinson said lacked experience with vitrification; after 12 pits were treated, an explosion during work on a thirteenth severely damaged equipment. The government then cancelled vitrification, exhumed the remaining pits, and placed the material in a shallow burial site covered with clean soil. The source records a strong government rebuttal, but several central technical claims are marked citation needed, so the allegations should be treated as attributed whistleblower disclosures rather than fully independently verified findings.