301   Finding source of pollution of water supply

(1)  If water supplied by a water supply authority is being polluted, the water supply authority may, after giving reasonable notice to persons likely to be affected by its action, dig up the ground and try to find the source of the pollution.

(2)  If it is found that a person given notice under this section is not responsible for the pollution, the water supply authority must bear the expenses of:

(a)  the digging, examination, repair and reinstatement of the broken ground, and

(b)  the repair of any damage caused by the water supply authority to the property of the person.

(3)  A water supply authority may recover the expenses incurred by it as a debt due to the water supply authority by any person responsible for the pollution.