319   Compensation for interference or damage

(1)  If:

(a)  a person does, or causes to be done, any work that interferes with, or damages, any property of a water supply authority, and

(b)  there was reasonable cause to believe that the interference or damage would result from the doing of the work,

      the person is liable to compensate the water supply authority for the interference or damage.

(2)  A water supply authority is not entitled to compensation both under this section and another provision of this Part for the same interference or damage.