A state of emergency's still in place in Southland, Clutha and Kaikoura - and boil-water notices remain for Greymouth and Clutha.
PowerNet is warning thousands of people in Southland and Otago could be without power until next week.
Fonterra South Island Regional Head Mat Cullen, says teams are working hard to get milk collection back up and running.
He says Fonterra's trying to operate a business at usual approach, to any milk quality or animal welfare issues - so if farmers in those circumstances should give them a call.