A leak occurs at a service station while a tank truck driver is transferring petrol (premium unleaded). The driver fails to properly secure the hose to the transfer valve, and the hose detaches as soon as the valve is opened. 300 litres spill onto the ground in the transfer area, onto the road and into the gutter. A safety barrier is set up. Explosivity measurements are taken in the storm water system up to the flow equalization basin located 2 km away. Sand is thrown onto the spills. At around 10:00am, the safety barrier is removed after the risk of explosion is found to have diminished.