Correction: An earlier version of this story failed to state it was just one part of Selwyn affected by the boil water notice.
The Selwyn District Council has issued a boil water notice for some residents as a result of wild weather across the region.
Residents who are on the Acheron Water Supply are advised to begin boiling water.
Authorities say they can't be confident the water is safe to drink but say no E.coli has been found
The council is instructing residents to boil water sufficiently to kill all bugs and if they can't boil water, add one teaspoon of household bleach per 10 litres of water and leave for 30 minutes before consuming.
The boil water notice is expected to be in place for several days.
- State Highway 1 from Hundalee to Kaikoura parts closed
- Inland Road open until 6pm until closing overnight
- Surface flooding on State Highway 82 between Waimate and Kurow
- State Highway 1 flooding on road near Rakaia
Authorities urge caution on all roads across Canterbury.
State Highway 1 south of Kaikoura remains closed
State Highway 1 south of Kaikoura is likely to remain closed overnight.
Heavy rain has caused mudslides which have blocked the highway in recent days.
At least five slides have blocked the road in different areas of the highway.
Repairs on the highway have been on-going since the November earthquake that closed the road indefinitely.
Wild weather has covered Canterbury on Thursday with heavy rain closing roads and flooding communities while 50cm of snow has been dumped on Mt Hutt.
A dumping of snow is being called "impressive for this early in April" according to Mt Hutt Ski Area Manager James McKenzie.
"It's unlikely for snow to fall this early."
The access road has been blocked by the snow and transport has been halted to snowmobile until snow subsides.
"Until it stop snowing we're not going to go much higher than the base area because there will be a little bit of an avalanche risk."
Despite the early dumping, Mr McKenzie says it won't stay but is helping for preparation for the upcoming season.
Inland road between Waiau and Mt Lyford closed
The Inland road has been closed due to slips and flooding in the area.
The NZTA say crews are working in the area with sluicing and clearing material to make land safe in certain areas.
Some roads are expected to open later in the day while some roads are operational with stop/go management.
Weather brings relief for farmers
"For us, this is absolutely wonderful," North Canterbury farmer Lynda Murchison says.
"We have had some good spells of rains, a few millimetres here and there on a regular basis but it is certainly not enough to recharge the aquifers.
"This sort of volume of rain is the sort of stuff that we need."
Ms Murchison says this rain may end the drought for farms in the area who have been without heavy rain for years.
"If we keep getting patterns like this then we should be moving into a recovery.
"It's been tough in north Canterbury, we've had drought we've had earthquakes, for us to have rain like this is a real good booster."