This section applies where—
the appropriate agency has sought to enter into arrangements acceptable to it under section 20 or 20A above, but is satisfied that the other party is unwilling to enter into such arrangements or to do so on terms appearing to the appropriate agency to be reasonable; or
having entered into such arrangements, the appropriate agency has sought to renew or vary them but is satisfied that the other party is unwilling to do so or to do so on terms appearing to the appropriate agency to be reasonable.
Where this section applies, the appropriate agency may refer to the Secretary of State the question (as the case may be)—
whether such arrangements should be entered into, and if so, on what terms; or
whether the arrangements should be renewed or varied (as the case may be), and if so, on what terms.
If the Secretary of State determines that arrangements should be entered into or (as the case may be) renewed or varied, such arrangements on the terms determined by the Secretary of State shall be enforceable—
by civil proceedings by the Secretary of State for an injunction or for any other appropriate relief; and
where the other party is a water undertaker, also under section 18 of the Water Industry Act 1991 (enforcement orders) by the Secretary of State.
The functions of the Secretary of State under subsection (2) above shall be treated for the purposes of section 114 of the 1995 Act (delegation or reference of appeals) as if they were functions to which paragraph (a) of subsection (1) of that section applied.