Paragraph 22 I1

If by reason of the construction of any specified work or of the failure of any such work the efficiency of any drainage work is impaired, or that drainage work is otherwise damaged, such impairment or damage shall be made good by the undertaker to the reasonable satisfaction of the consenting authority and if the undertaker fails to do so, the consenting authority may make good the same and recover from the undertaker the expense reasonably incurred by it in so doing.