Paragraph 35 Prevention of pollutionI1

The undertaker must not in the course of constructing a specified work or a protective work or otherwise in connection therewith do or permit anything which may result in the pollution of the waterway or the deposit of materials therein (unless otherwise permitted by the Order or the protective provisions in this Part of this Schedule) and must take such steps as the engineer may reasonably require to avoid or make good any breach of its obligations under this paragraph.