By skyforbes 
This is from a BBC article about the water supply problems from South East Water.
https://www.bbc.co.uk/news/live/c208xzjx13jt
Just in case it has been updated.
In the summary list on the left the last item says:
"It will try to restore supplies today – but there will be a strict warning to not drink water unless it has been boiled for at least 10 days"
That's a long time to wait for your water.