The impacts of agricultural use are ubiquitous, but often vary from place to place. In some places it is linked to fertilisation and pesticides, in others it may be linked to over abstraction or to excessive drainage (e.g. urban flood risk linked to disappearance of floodplains). In 2014, Eau de Paris put in place an information campaign and concrete actions to promote organic agriculture for the preservation of w'ater and natural resources.3 There are also contracts between the municipality of Paris, authorities in the hinterland and farmers for developing a tighter co-operation between supplying areas in terms of water resources and the urban core (see Box 5.9 in the section on stakeholder engagement).