72Moreover, it follows from the wording, scheme and purpose of Article 4 of Directive 2000/60 that, like the requirements laid down in Article 4(1)(a) in respect of surface waters, which, as the Court noted in the judgment of 1 July 2015, Bund für Umwelt und Naturschutz Deutschland (C‑461/13, EU:C:2015:433, paragraph 43), are binding in nature, those laid down in Article 4(1)(b) in respect of groundwater are also binding.
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