There are a whole plethora of risks that consume management time and attention at Thames Water, from trips and falls to Legionnaires Disease and the diversity of the company’s role is enormous. Thames Water has 15 million customers and represents a quarter of the UK’s water operation. Karl Simons heads the health and safety operation at Thames Water and is at the forefront of efforts to utilise a change in perception of the role of the Health and Safety manager that has occurred over the period of the last five years.