Universal Registration Document 2024

4 SUSTAINABILITY REPORT ENVIRONMENTAL MATTERS

For example, issues relating to the availability of water resources and, in particular, the policy of reducing the use of rainwater in development projects, as well as flooding and water saving, are monitored under the CSR policy (and, in particular, its environmental pillar), but also in dedicated bodies that are shared with local residents (Water Law Committee, Rencontres biodiversité et territoires events, technical monitoring meetings with water authorities, exchanges with local partners, discharge agreements with tenants of land owned by ADP SA, contracts, etc.). 4.2.2.3.3. Progress approach Mapping of the initial state of impervious/permeable surfaces was carried out for all Paris hubs in 2022. This makes it possible to define and formalise the reference level against which stormwater projects are to be phased out. Aware of its responsibility towards water resources (see Controlling our water discharges), soil (see section 4.2.2.3. Limiting pollution of soil and groundwater – linked to the Vigilance Plan and biodiversity matters (see section 4.2.3.1. Limiting pressure applied on biodiversity), the Group has undertaken to pursue this policy for its new projects in order to return seepage water to nature. This policy will reduce pressure on water resources and improve the biodiversity index of Paris hubs. It is due to be defined during 2025 for the Paris airports. 4.2.2.4 Limiting pollution of soil and groundwater 4.2.2.4.1. Description of specific duty of vigilance risks Soils are the support of life on earth and are at the centre of all natural cycles (water, carbon, oxygen, nitrogen, etc.). Their preservation is vital for nature, human health and, consequently, for economic activity. It is because this matter is interrelated with other material matters that Groupe ADP has deemed it appropriate to make its cross-disciplinary approach clear. Groupe ADP has been committed for many years to the preservation of soil, subsoil and groundwater. Groupe ADP does not hold any authorisation to release pollutant substances into the ground, and it does not make any regular discharges into the ground. It is therefore not possible to establish a pollutant discharge assessment. On this basis, the IRO analysis of this matter was deemed non material. However, airports are industrial hubs, and in the event of an incident or failure to comply with safety regulations, unforeseeable spills can occur on a one-off or widespread basis. In this case, there is a risk of soil and groundwater pollution that could spread to targets such as protected natural environments or drinking water wells. For this reason, Groupe ADP has, over many years, implemented an internal policy for the prevention, detection, warning and remediation of accidental and chronic pollutant impacts that may be detected at its airports. In France, in accordance with the applicable regulations and the National Methodology for Polluted Sites and Soils, this internal policy is linked in particular with the environmental authorisations available to the Group on the subjects of water and pollution covered by ESRS E2, "Controlling our discharges into water".

Groupe ADP's objective for its Paris airports through this commitment is to reconcile its economic development objectives with its goal of zero impact on the environment. Projects must avoid soil sealing: u reduce the amount of land built and developed, new buildings, the densification of neighbourhoods, existing developments, etc.; u reduce the amount of related waterproofing: use of techniques that do not waterproof the soil, vertical construction, returning water to the plot, etc.; u reduce the impact on nature, and even help to improve the biodiversity index of hubs: use of nature-based techniques, combating urban heat islands, combating the increasing scarcity of water resources, etc. (see ESRS E4); u off-plot compensation schemes to manage any residual waterproofing impact that cannot be managed on the plot. These systems are designed to treat rainwater contaminated with winter products or underground structures. This compensation will be done by setting up infiltration systems at the scale of a neighbourhood, or even at the scale of a watershed; u study of the potential for the reversing of waterproofing of existing structures (car parks and roads). The main risks of accidental chemical pollution of the soil on our land are linked to potentially polluting activities carried out by Groupe ADP and third-party operators, in particular: u the storage and distribution of paraffin for aircraft operated directly or indirectly by Groupe ADP; u various industrial activities classified as ICPE, located in specific areas of the airport hubs (use of petroleum hydrocarbons, chemicals such as PFAS, old disused industrial sites, etc.). 4.2.2.4.2. Actions for mitigation and prevention POLICIES AND COMMITMENTS Since 2012, Aéroports de Paris SA has had an internal soil pollution prevention policy and procedure for its Paris hubs, and has called on specialist firms certified by the French Ministry of Ecology to support it in its remediation and prevention efforts. These procedures and this organisation are made necessary by the operation of Installations Classified for the Protection of the Environment (ICPE) (Installations Classées pour la Protection de l'Environnement) at airports, whether operated by Aéroports de Paris SA or third-party tenants. These documents, which were updated in 2022 on the basis of feedback from hubs in the Paris region, ensure that skills and prevention and response mechanisms are maintained in the event of an incident polluting soil and groundwater.

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AÉROPORTS DE PARIS w UNIVERSAL REGISTRATION DOCUMENT 2024