Universal Registration Document 2024

SUSTAINABILITY REPORT 4 ENVIRONMENTAL MATTERS

4.2.2.3.2. Actions for mitigation and prevention ACTIONS TAKEN BY THE GROUP Water consumption Reducing water stress in these areas involves rationalising the use of water at the Group's airports. At its Paris airports, Groupe ADP has implemented a water savings plan since 2023 in order to meet the following challenges: u reduction: reducing water consumption; u phasing out: "erasing” water consumption on drinking water distribution networks by substituting it with water of another type, such as rainwater; u restitution: returning to the soil the water captured by sealing; u quality: improving the quality of discharged water; u raising awareness: improving the way water matters are taken into account in governance bodies, company decisions and day-to-day actions. Reducing and eliminating these installations will reduce the consumption of drinking water in the network and, ultimately, the amount of water returned to the natural environment. Dedicated initiatives have been in place for many years at the Group's hubs and are continuing to develop. At Paris-Orly in particular, rainwater is recycled for some of the airport's fire-fighting systems, in the terminal washrooms, for cleaning surfaces and for cooling buildings. The installation of water-saving equipment has also become widespread, whether in airport buildings, tertiary buildings or even on work sites. While it does not produce any, ADP distributes drinking water at Paris airports, and has a water tower and booster at Paris-Charles de Gaulle. Paris-Orly and Paris-Le Bourget are supplied by drinking water distribution points. At the Amman Queen Alia airport, water is supplied by AIG from the water table using wells. Tanks are used to store water and a treatment unit has been set up to supply drinking water. Water from the treatment and purification station is used to irrigate the green spaces to limit abstraction. Due to its location in the middle of the Jordanian desert, Queen Alia Airport's water supply is a particularly strategic constraint for the airport's operation. Thus, in order to optimise its resilience and mitigate the risks related in particular to climate change, AIG has initiated a policy of water access to the airport. It aims to connect the airport to the national water network to guarantee supplies. In addition, a network renewal policy is in place to avert stakeholder connections to the firefighting network. This last point is implemented by joint exchange and autonomous sourcing solutions. Combating leaks is also a priority for the Group. The airports aim to achieve and maintain a network efficiency rate of over 80%, i.e. , less than 20% of the injected volume lost through leaks. At the Turkish hubs owned by TAV Airports, water is bought from local suppliers or drawn from the water table via wells and ultraviolet treatment stations.

Water stress Although it is not currently subject to the Zero Net Artificialisation (ZAN) law and its implementing decrees, Groupe ADP is aware of its responsibility in terms of water management in the areas where it operates in the Paris region. To this end, the Group has undertaken to set itself a target of reducing the waterproofing of new projects at its Paris hubs. Two main areas of work have been defined for an airport: u plot management, which is the basic option for all projects; u watershed management, which is the ultimate management method for projects that are not eligible for plot management because of: u risks of contamination of rainwater with chemicals, u plot congestion, u specific subsoil risk; non-compatible natural subsoil characteristics, particularly the soil permeability coefficient. The innovative action of water infiltration could not be tested or implemented without an adaptation of the regulatory framework governing the strict management of rainwater at Paris airports and in particular the related prefectural decrees. Flooding In France, water management at Paris-Charles de Gaulle is subject to restrictions in terms of discharge volume. The aim of this restriction is not to overload the downstream discharge environment (La Réneuse river) so that it does not experience flooding. The Renardière dam provides a water retention system. Remotely controlled dynamic volume management ensures that discharge complies with regulatory constraints at all times and that the risk of downstream flooding due to activities at the Paris-Charles de Gaulle hub is kept under control. As part of the plan to improve stormwater management at the Paris-Charles de Gaulle airport, drawn up in 2013 with the Seine-et-Marne Prefecture, Groupe ADP has approved the extension of the stormwater discharge pipe into the Marne. This project involves discharging treated stormwater from the Renardières basin into the Marne, so that a larger quantity of stormwater can be treated. Quality of water discharged into the natural environment It should be noted here that the quality of non-compliant ( i.e., polluted) water discharged into the natural surface or underground environment by the Group's airport hubs is the primary water-related risk. However, as this risk is material, it has been developed in the corresponding ESRS (see Controlling our water discharges). Monitoring system Systems for monitoring the quality of water discharges are described in the Controlling our water discharges section. However, the other issues of lesser importance to which Groupe ADP is committed on a voluntary or regulatory basis, as described above, are also subject to dedicated monitoring.

341

UNIVERSAL REGISTRATION DOCUMENT 2024 w AÉROPORTS DE PARIS