A sewerage undertaker shall not be in breach of a duty imposed by section 98 above in relation to any locality or (in the case of a lateral drain) in relation to any premises unless—
at the place or places determined under subsection (3) below.
The period mentioned in subsection (1)(a) above may be extended—
The places mentioned in subsection (1)(b) above shall be—
A reference for the purposes of subsection (2) or (3) above may be made to the Authority for determination under section 30A above by either party to the dispute.
In this section "relevant day", in relation to a requirement to provide a public sewer for any locality or, as the case may be, a lateral drain, means the day after whichever is the later of the following—
are determined under subsection (3) above.