Depends on where you are. Due to spectacularly bad planning (is there any other sort in England) over 50% of the population choose to live with only 10% of the water.
I appreciate it's contentious (for some) but the foresight of Birmingham to secure a water supply from Wales (by a pretty funky aqueduct) that will last *another* 100 years demonstrates how far we have fallen.
I believe Liverpool is similarly blessed.
It may be an pub "fact", but I once read the Kielder Dam pours away more fresh water in a week than SE England uses in a year. Fuck HS2, why is there not a Water Main One project ?