Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Wadden Sea' has mentioned 'Drainage' in the following places:

Occurrence Sentence	Text Source
As the property is surrounded by a significant population and contains human uses, the continued priority for the protection and conservation of the Wadden Sea is an important feature of the planning and regulation of use, including within land/water-use plans, the provision and regulation of coastal defences, maritime traffic and drainage.	UNESCO