Where a duty is imposed by section 110L(2), or by virtue of a direction given under section 110L(3), in respect of any premises, any breach of the duty which causes the owner or occupier of the premises to sustain loss or damage is actionable at the suit of that owner or occupier.
But in any proceedings brought against a sewerage undertaker or sewerage licensee in pursuance of subsection (1), it is a defence for the undertaker or licensee to show that the undertaker or, as the case may be, the licensee took all reasonable steps and exercised all due diligence to avoid the breach.
For the purposes of section 110L, premises which are outside a sewerage undertaker's area are to be treated as being within that area if they are provided with sewerage services using the undertaker's sewerage system.
In subsection (3), the reference to the undertaker's sewerage system is to be construed in accordance with section 17BA(7).
Section 110K(2) and (3) apply to a notice served under section 110L(6)(b)(iii) as they apply to a notice served under section 110K.