2022 Universal Registration Document

Soc i al , env i ronmental and soc i etal respons i b i l i ty i nformat i on 4 Lead the environmental transition of the airport and support that of air transport

The ZIN (Net Zero Waterproofing) trajectory for new projects is an approach that is the result of a voluntary commitment by Aéroports de Paris SA to strive for zero impact from its activities on the environment, particularly for its new projects (construction and/or development). This commitment is rooted in: ◆ compliance with its regulatory requirements and, in particular, the water law decrees; ◆ the necessary work that ADP must implement to improve its resilience to reduce its dependence on an abundant and quality water resource; ◆ potentially polluting activities carried out on its platforms and its policy of preventing polluted sites and soils; ◆ the permanent adaptation and rigorous management of its rainwater and wastewater collection/management/treatment systems; ◆ reconciliation with its development needs; ◆ requirements to reduce the artificialisation of land, particularly with a view to reducing the impact of development projects on biodiversity; ◆ meeting its biodiversity objectives (surfaces preserved for biodiversity and improvement of the biodiversity index of the platforms). Groupe ADP’s objective in France through its Net Zero Waterproofing commitment is to reconcile its economic development objectives with its goal of zero impact on the environment. For this, projects must avoid as much as possible their waterproofing (reduction of built/developed surfaces, build “when really necessary”, densify existing neighbourhoods/ developments, etc.), reduce the resulting waterproofing (use techniques that do not waterproof the soil, verticalize buildings, return water to the plot, etc.) and reduce the impact on nature, or even contribute to improving the biodiversity index of platforms (use techniques based on Nature, fight against urban heat islands, fight against the scarcity of water resources, etc.). Once all these steps have been completed, off-plot compensation systems will be taken into account to manage the waterproofing impacts that could not be managed on the plot (for questions of the need to treat rainwater contaminated with winter products or due to technical impossibility due to the presence of structures buried underground, for example). This compensation will be done by setting up infiltration systems at the scale of a neighbourhood, or even at the scale of a watershed. Although limited, the potential for long-term waterproofing of existing structures (car parks, roads, etc.) will also be studied. MAIN ACTIONS IN 2022 In 2022, Aéroports de Paris SA launched studies that will lead in 2023 to the establishment of its Net Zero Waterproofing trajectory for its new projects. An ambitious and unique project on the scale of large international airports the size of Paris-Orly and Paris-Charles de Gaulle, it will result in redefining the doctrine of rainwater collection and treatment before surface water discharge into the natural environment by a doctrine allowing a better distribution of runoff to surface water and groundwater,

carbon compared to a “traditional” project (-78%). However, the additional cost of the equipment used is significant (approximately +50% in rental costs) but is mainly due to the fact that this equipment is still scarce. The company that carried out this project on behalf of ADP (SOGEA Groupe VINCI Construction) expects a drastic decrease in the cost of renting this equipment over the next five years due to growing demand and greater availability in future of this type of gear. In addition to the savings on carbon emissions, having electrical equipment has many advantages for the acceptance of construction sites, particularly in a situation of high population density: no emission of fine particles or atmospheric pollutants, no noise frommachine engines, no risk of accidental fuel spillage during refuelling, etc. However, this implementation requires special training for staff (useful for the “construction sites of tomorrow”) and a good understanding of the hydrogen supply chain to avoid any disruption. The implementation of Groupe ADP’s hydrogen strategy (see Chapter: “Commitment 2.1: Bringing together the conditions for transitioning technologies (Sustainable Aviation Fuel) and technological breakthroughs (hydrogen and electric)”) should help on this last point. INDICATORS ◆ Percentage of projects for which the cost of investment, studies and construction is > €5 million applying a specific site charter: the advantage of this indicator is to give visibility on the importance of integrating the application of a specific site charter for the Group’s major projects. Commitment 4.3: Improve the ecological value of our sites, ensure ecological continuity and aim for Net Zero Waterproofng, as part of our project management responsibility POLICY/OBJECTIVES To achieve these objectives, Aéroports de Paris defines development, landscape and biodiversity blueprints for its Paris Charles de Gaulle, Paris-Le Bourget and Paris-Orly airports. These documents are based on biodiversity diagnostics and aim to reconcile the development of the airports with the preservation, then the strengthening, of biodiversity. They are being rolled out into operational strategies: that of Paris-Charles de Gaulle was finalised in 2021, and that of Paris-Orly is underway and should be finalised in early 2022. Aéroports de Paris is committed to limiting new waterproofed surfaces by prioritizing infiltration as much as possible and, failing this, by compensating for unavoidable waterproofing by means of studied and adapted systems for restoring natural environments (river, groundwater). Accordingly, under the guidelines, zoning defining rainwater management rules by area and thresholds that limit leakage flow rates have been established to promote infiltration. Through the new act4nature international commitments, and in anticipation of regulatory changes concerning artificialisation, we are now focusing on our trajectory of Net Zero Waterproofing.

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AÉROPORTS DE PAR I S / UN I VERSAL REG I STRAT I ON DOCUMENT 2022