Article 15 — Investigation of potentially contaminated sites

1. Member States shall ensure that soil investigations on potentially contaminated sites identified pursuant to Article 14 are carried out in accordance with paragraph 2 of this Article and with the risk-based and stepwise approach referred to in Article 13. 2. Member States shall lay down rules concerning the timeframe, content, form and prioritisation of soil investigations. Member States shall take into account potentially contaminated sites located in areas used for the abstraction of water for human consumption in the prioritisation of soil investigations. Member States may consider baseline reports and monitoring measures implemented in accordance with Directive 2010/75/EU as well as other investigations as soil investigations, if such reports, measures and investigations meet the requirements of this Directive. 3. Member States shall establish a list of specific events that trigger a soil investigation. Soil investigations shall be carried out within the timeframe referred to in paragraph 2.