The flooding incident at the Walham substation (discussed in Chapter 9) featured multiple agencies working on a shared task at the same location (i.e. the construction of flood defences and the drainage of floodwater from the site). By the consolidation phase of an incident, the responding agencies would (in theory) normally be involved in distinct tasks. During the defence of Walham, there was therefore a requirement for agencies to closely co-ordinate their activities to prevent them from working at cross-purposes.