The site was left contaminated with radioactive waste, and an initial clean up was attempted in 1967. The McClelland Royal Commission, an examination of the effects of the minor trials and major tests, delivered its report in 1985, and found that significant radiation hazards still existed at many of the Maralinga sites. It recommended another clean up, which was completed in 2000 at a cost of AUD $108 million (equivalent to $ in ). Debate continued over the safety of the site and the long-term health effects on the traditional Aboriginal custodians of the land and former personnel. In 1994, the Australian Government paid compensation amounting to $13.5 million (equivalent to $ in ) to the traditional owners, the Maralinga Tjarutja people. The last part of the land remaining in the Woomera Prohibited Area was returned to free access in 2014.