Court of Justice 4 May 2017, Case C-502/15: Judgment of the Court (Ninth Chamber) of 4 May 2017 — European Commission v United Kingdom of Great Britain and Northern Ireland (Failure of a Member State to fulfil obligations — Directive 91/271/EEC — Articles 3 to 5 and 10 — Annex I, Sections A, B and D — Urban waste-water treatment — Collecting systems — Secondary or equivalent treatment — More stringent treatment of discharges into sensitive areas)

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