Water Management Act 2000

If—

a water supply authority, in order to exercise its functions, needs an alteration to be made in the position of a conduit owned by another person, and

the alteration would not permanently damage the conduit or adversely affect its operation,

A notice must—

specify the alteration needed, and

require the alteration to be made within a reasonable time stated in the notice, and

include an undertaking by the water supply authority to pay the reasonable cost of the alteration.

If the alteration is not made as required by the notice, the water supply authority may make the alteration in such a manner as not to damage the conduit permanently or adversely affect its operation on completion of the alteration.

In this section, conduit means anything that is in or under a public road (or any other land on which no building or other structure is located) and is used for the conveyance of a substance, energy or signals.