RAS have collaborated with Manchester Airport Storage and Hydrant Company (MASHCo) on an airport transformation project over the last 10 years. The expansion of terminals led to an 80% increase in fuel storage capacity resulting in the site becoming a top-tier COMAH facility. RAS and MASHCo delivered milestone achievements including Management of Change, a hazard study facilitation, quantitative safety risk assessment, environmental risk assessment, training in emergency response plus many more human factors. RAS achieved process safety performance and the entire project was delivered while the airport remained operational. A brilliant North West project delivered collaboratively.