Thames Water urgent 'do not drink' warning to hundreds of Surrey homes

Politically, this is magnificent. The Lib Dems have target seats throughout Surrey where they're typically the main challenger, they've been campaigning hard locally on water quality through most of this parliament (hasn't always got national attention but they worked out a while ago it's a very resonant issue in their target seats) and then just in time for the election Thames Water start warning people the water isn't drinkable...