Premium Content Subscriber only Gladstone's biggest employer, Queensland Alumina Limited (QAL), and McCosker Contracting are being sued for $1.65 million after a worker's dozer tipped in the Red Mud Dam and he was washed up in the industrial waste. Jason Kerfoot filed a workplace injury lawsuit against the companies in January at the Rockhampton Supreme Court. The Statement of Claim details Mr Kerfoot was employed by McCosker Contracting as a machinery operator and he was conducting work at QAL's Red Mud Dam. The document cites an incident occurred on December 3, 2018, when Mr Kerfoot was operating a dozer. It states Mr Kerfoot was moving soil to raise the height of the back wall of the Red Mud Dam, which had slurry and manufacturing by-product behind it.