This framework will be managed by the Risk Manager and supported by the executive management team. Under the guidance of the Council’s Risk Manager and the O & M Engineer a joint assessment of the hazards associated with bot the stormwater and wastewater operation is undertaken on an annual basis. The hazards are risk assessed on the standard Likelihood/Consequence matrix to establish a risk profile. The controls for each risk are considered and an action plan is prepared to either augment the controls or manage the residual risk. The risk profile is reviewed and updated every year. The risk profile is included in Appendix 1 – Operations and Maintenance – Stormwater/Wastewater Risk Profile. The risks are also be separated on a network basis. For example the risks on the steep valleys of the PIcton system have different characteristics to the urban Blenheim system. The risk management process is included in the Standard Operating Procedures and Emergency Management Plans. They have been developed from two perspectives – all hazards that may affect individual sites ie; a chemical spillage at a site and specific events that may affect multiple sites eg; a storm event. During 2010 the stormwater risk assessment was reviewed and rationalised to ensure there was a rational and consistent approach to each reticulated area and the asset group. The risk assessment was re-organised to follow a flow-path from ‘source to sea.’ The risks associated with stormwater drainage are considered in order; starting from the stormwater inlet, pipes, channels, pumps and outlets. Also included are managerial risks such as – reputation, financial, legislation, etc. At each annual review the flow path is followed and risks reviewed. New hazards are added or redundant ones removed. All risks are evaluated against any changes to ensure comprehensive assessment. Emergency Response Planning - The risk assessment and mitigation process of existing hazards; the consideration and implementation of future controls and the management of the residual risks provides a structured framework for emergency response planning. For example power failure is a significant risk to the operation of stormwater pumps. The risk treatments may include– alternative back-up connections to the power network, installation of permanent emergency generators, deployment of mobile generators, provision of additional storage, etc. The preferred solution is selected and implemented and the outcome reviewed. Critical Assets - The criticality of particular components of the stormwater infrastructure is recognised in the risk assessment process. Generally critical assets are those whose failure would cause widespread loss of service, serious public health risk or serious environmental damage. In each of the stormwater systems the critical assets are • The major trunk mains • Terminal pump stations Individual pipes or assets may be added to the list as the Stormwater Action Areas are developed further. The criticality rating will be recoded in AMIS for future reference. The Assets and Services Department is an active participant in the Marlborough Engineering Lifelines Group and regularly contribute to coordination meetings and civil defence exercises to prepare and test for major events. Engineering Lifelines facilitate the exchange of information and planning between the utilities such as Marlborough Lines, Marlborough Roads, telecommunications companies, major transport hubs and other stakeholders. 4.3 Routine Operations and Maintenance Plan The operation and maintenance plan of the stormwater system sets out the procedures and tasks necessary to deliver the agreed level of service to the stakeholders whilst ensuring the Page 44