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by identifying as less sensitive areas all the coastal waters of the Island of Madeira and all the coastal waters of the Island of Porto Santo without applying the criteria laid down in Annex II to Directive 91/271/EEC, (1) in conjunction with Article 6(1) of that directive, and, in particular, without carrying out comprehensive studies indicating that the respective discharges do not adversely affect the environment, the Portuguese Republic has failed to fulfil its obligations under those provisions of Directive 91/271/EEC;

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by subjecting to treatment less stringent than that prescribed in Article 4 urban waste water from agglomerations with a population equivalent of more than 10 000, such as the agglomerations of Funchal and Câmara de Lobos, discharged into the coastal waters of the Island of Madeira, without carrying out comprehensive studies indicating that those discharges do not adversely affect the environment, the Portuguese Republic has failed to fulfil its obligations under Article 6(2) of Directive 91/271/EEC;

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by failing to ensure, with regard to the agglomeration of Albufeira/Armação de Pêra, the provision of collecting systems for urban waster water in accordance with Article 3 and treatment more stringent than that prescribed in Article 4, in accordance with Article 5 of the Directive, the Portuguese Republic has failed to fulfil its obligations under Articles 3 and 5 of Directive 91/271/EEC;

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by failing to ensure, with regard to the agglomeration of Beja, treatment more stringent than that prescribed in Article 4, in accordance with Article 5 of the Directive, the Portuguese Republic has failed to fulfil its obligations under Article 5 of Directive 91/271/EEC;

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by failing to ensure, with regard to the agglomeration of Chaves, treatment more stringent than that prescribed in Article 4, in accordance with Article 5 of the Directive, the Portuguese Republic has failed to fulfil its obligations under Article 5 of Directive 91/271/EEC;

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by failing to ensure, with regard to five agglomerations along the estuary of the River Tagus, Barreiro/Moita, Fernão Ferro, Montijo, Quinta do Conde and Seixal, the provision of collecting systems for urban waster water in accordance with Article 3; by failing to ensure, in six agglomerations discharging on the left bank of the Tagus estuary, Barreiro/Moita, Corroios/Quinta da Bomba, Fernão Ferro, Montijo, Quinta do Conde and Seixal, treatment more stringent than that prescribed in Article 4, in accordance with Article 5 of the Directive, the Portuguese Republic has failed to fulfil its obligations under Articles 3 and 5 of Directive 91/271/EEC;

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by failing to ensure, with regard to the agglomeration of Elvas, treatment more stringent than that prescribed in Article 4, in accordance with Article 5 of the Directive, the Portuguese Republic has failed to fulfil its obligations under Article 5 of Directive 91/271/EEC;

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by failing to ensure, with regard to the agglomeration of Tavira, treatment more stringent than that prescribed in Article 4, in accordance with Article 5 of the Directive, the Portuguese Republic has failed to fulfil its obligations under Article 5 of Directive 91/271/EEC;

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by failing to ensure, with regard to the agglomeration of Viseu, the provision of collecting systems for urban waster water in accordance with Article 3 and treatment more stringent than that prescribed in Article 4, in accordance with Article 5 of the Directive, the Portuguese Republic has failed to fulfil its obligations under Articles 3 and 5 of Directive 91/271/EEC;