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Commission Defers to Greek Authorities on Natura 2000 River Diversion and Flood Risks

Environment, Energy, & Infrastructure · Environment · parliamentary_answers · 2026-04-24

Commissioner Jessica Roswall, on behalf of the European Commission, has declined to assess the compatibility of a river diversion in the Achlada area of Florina, Greece, with EU environmental directives, instead deferring to Greek authorities to ensure compliance. The diversion of the Geropotamos river, which forms the boundary of the Natura 2000 site 'Ori Varnounta' (GR1340003), has been linked to flooding events affecting roads and a bridge, raising public safety concerns. The answer, given on 24 April 2026, responds to a parliamentary question from MEP Maria Zacharia (NI), submitted on 6 February 2026.

The Commission's response outlines the legal framework but offers no concrete action. Under the Floods Directive (2007/60/EC), the Commission does not assess whether specific projects increase flood risk. For the Water Framework Directive (2000/60/EC), case-law requires that projects not jeopardise good ecological status unless an exemption under Article 4(7) applies. The Habitats Directive (92/43/EEC) mandates an appropriate assessment for projects likely to significantly affect a Natura 2000 site, with exceptions under Article 6(4). However, the Commission states it is primarily the responsibility of Greek authorities to ensure compliance, without indicating any planned investigation or enforcement.

Policy orientation and ambition: The answer is declarative and non-committal, reiterating existing legal obligations without signalling new Commission action. It avoids taking a stance on whether the diversion alters Natura 2000 boundaries or whether flood control studies are adequate. This suggests a low priority for enforcement in this case, potentially disappointing environmental NGOs and local residents concerned about the site's integrity and flood risks.

Expected institutional follow-up: No specific timeline or further steps are announced. The Commission may await a complaint or infringement procedure initiated by stakeholders or the European Parliament. MEP Zacharia could pursue follow-up questions or refer the matter to the Parliament's Committee on Petitions. The Greek authorities are now under informal pressure to demonstrate compliance, but no formal EU investigation is imminent.

Stakeholder impacts: Greek authorities face the burden of proving compliance with EU law, potentially requiring costly studies or project modifications. Local residents and environmental NGOs may see the answer as insufficient, lacking concrete protection for the Natura 2000 site and flood safety. The lignite mine operator benefits from regulatory uncertainty, as no immediate restrictions are imposed. EU taxpayers bear no direct cost, but the Commission's hands-off approach may undermine trust in EU environmental enforcement.

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