again there would be a significant impact. How do we The biosecurity system consists of a number of central government interventions pre manage this risk? border, at the border and post border. These include an Import Health Standard for ballast water that is currently in place and by 2018; a Craft Risk Management Standard for vessel biofouling will be also enforced. Regional Government interventions assist with pest management at the post border stage in the event of incursion. In addition, there are marine pests and diseases that may be present in other parts of New Zealand which could triggers the impacts highlighted above. In that case, Regional Government plays a role in managing that risk as best it can from within its own region. Industry and public awareness contribute to readiness What more Putting in place further measures to reduce the risk of domestic transfer of pests and should we be diseases. doing? Potential for more coordination between central, regional government, industry and society. What is the future It is impossible for the biosecurity system to mitigate 100% of potential biosecurity risk? threats while enabling trade and travel. It is a question of when not if. A biosecurity risk will impact Marlborough’s economy and society at some time in the future. The likelihood of this threat increases each year. River Flood Overview Floods are probably the most commonly occurring natural hazard in Marlborough. They occur across the entire region and have caused the most damage among the hazards identified in recent times. Hazard Likelihood Floods have been responsible for numerous Civil Defence Emergencies in recent (A) history particularly the July 1983, Wairau River flood. It is possible that the protection works will be stressed at some future stage due to super-design flood discharges or landslide or dam failure incidents. It could also arise as a result of a multiple emergency situation ie; earthquake, landslide, blockage and flash floods outside the immediate area. Hazard Social: Consequence (4) • Loss of life and injury is a distinct possibility (numerous cases of both have been recorded in New Zealand). Mass evacuation of residents is also an issue in Marlborough because much of the population is situated in isolated areas which can lead to stranding as transport links are cut. • Public health is at risk from water/sewage contamination in the major settlements and the dispersal of human and farm effluent in rural areas. Many of the region’s closed landfills are also located in flood prone areas. • General social disruption can occur as schools and workplaces are closed and people are dislocated from homes – sometimes for long periods ie; Wairau Flood 1983, Tuamarina Township, 2010. Economic • Severe structural and economic damage has occurred to the major urban settlement of Blenheim, Renwick, Picton, Spring Creek and Tuamarina, Rai Valley Marlborough Civil Defence Emergency Management Plan, 2017-2022 Page 96