People living in parts of Lincolnshire, Cambridgeshire, Peterborough and Northampton will be banned from using hosepipes from April 5th.
Anglian Water announced that it was enforcing a hosepipe ban because two unusually dry winters have left reservoirs, aquifers and rivers well below normal levels.
Last month water companies warned that a hosepipe ban was on the cards as the Environment Department (Defra) declared Anglia and the South East in a state of drought.
In a statement on its website, Anglia Water said:
"Because of the extremely dry conditions we’ve been experiencing, sometimes we need to restrict non-essential water use – and that can include a domestic hosepipe ban. In fact, because of the continuous investment in our water network, we haven’t had to introduce a hosepipe ban for the last 20 years."