• Considerable costs from the repair and clean-up of sewerage effluent. • There are significant costs in transporting water and the additional disinfection and testing. • There may be an impact on the aquaculture and leisure industry of wastewater pollutants entering the environment. • Fire-fighting capability could be greatly reduced. Built: • The potential exists for local contamination of property. Natural Environment: Waterways and coastal areas which can affect local ecosystems for a certain period of time. How do we Power loss is one of the most likely causes of disruption. The main sewerage pump manage this risk? stations in Blenheim and in Dublin Street Picton and Waikawa all have backup generators available and/or on site. The other stations have external plugs and an emergency plan to be serviced with portable pumps in the event of prolonged power outage. Mobile pumps can also be deployed to ‘over pump’ across a blockage but there are only a limited number of pumps with sufficient capacity available in the District. Blenheim and Picton have more than one source of water, treatment plants and a limited number of ‘critical’ mains. This provides some protection to complete failure. The other areas are more vulnerable but there is an active risk management programme and contingency arrangements. What more Council is planning to upgrade the water supplies into Havelock and Seddon. Recent should we be liquefaction research around Blenheim suggests that there may be issues similar to doing? those experienced in Christchurch, with their underground assets being disturbed during an earthquake. Damage arising from the Kaikoura 2016 earthquake has also indicated the vulnerability of sewerage systems and hence, the potential for drinking water contamination.. What is the future As the networks become more resilient the likelihood of failures will reduce over time. risk? Food Supply Overview The transportation links which provide fast moving consumer goods are vulnerable to storms and earthquakes causing road closures through flooding, landslides and structure damage. The vast majority of these goods are transported from Christchurch warehouses on a daily basis via State Highway 1. This link has been closed by major slips and flooding in the past and the alternative route over the Lewis Pass is equally vulnerable, particularly in winter. Goods from Nelson have to pass over two saddles which can be closed during severe events. Because of the nature of these goods and the daily delivery Marlborough could very quickly run out of key supplies of foodstuffs and most supermarkets hold a minimum level of stock in-store. The majority of the population also do not carry large quantities of food in case of an emergency. Marlborough Civil Defence Emergency Management Plan, 2017-2022 Page 104