1. Member States shall ensure that the risks to human health and the environment of potentially contaminated sites and contaminated sites are identified, managed, and kept at acceptable levels, taking account of the environmental, social and economic impact of the soil contamination and of the risk reduction measures taken pursuant to Article 16(4). Those risks may be evaluated taking into account the current and planned land use during each of the steps referred to in paragraph 2 of this Article.
Member States shall establish a hierarchy of responsibility to determine the party or parties responsible for the site-specific implementation of paragraph 2, points (b) and (c), of this Article.