Paragraph 15 Chemicals, drilling and debrisI1

Unless otherwise agreed in writing by the licensing authority, the carriage and use of chemicals in the construction of the authorised scheme must comply with the International Convention for the Prevention of Pollution from Ships of 1997.

The undertaker must ensure that any coatings and treatments are suitable for use in the marine environment and are used in accordance with recognised best practice.

The storage, handling, transport and use of fuels, lubricants, chemicals and other substances must be undertaken so as to prevent releases into the marine environment, including bunding of 110 percent of the total volume of all reservoirs and containers.

The undertaker must inform the licensing authority in writing of the time, date, location and quantities of material disposed of each month under this licence by submission of a disposal return by 31 January each year for the months July to December inclusive, and by 31 July each year for the months January to June inclusive.

The undertaker must ensure that only inert material of natural origin, produced during the drilling installation of or seabed preparation for foundations, and drilling mud is disposed of within the Order limits.

The undertaker must ensure that any rock material used in the construction of the authorised scheme is from a recognised source, free from contaminants and containing minimal fines.

The undertaker must ensure that no waste concrete slurry or wash water from concrete or cement works are discharged into the marine environment. Concrete and cement mixing and washing areas must be contained to prevent run off entering the water through the freeing ports.

The undertaker must ensure that any oil, fuel or chemical spill within the marine environment is reported to the licensing authority in accordance with the marine pollution contingency plan agreed under condition 17(1)(e)(i).