Article 6 1.

Member States shall ensure that discharges from urban wastewater treatment plants treating urban wastewater from agglomerations of 2 000 p.e. and above satisfy, before being discharged into receiving waters, the relevant requirements of secondary treatment set out in Part B and Table 1 of Annex I in accordance with the methods for monitoring and evaluation of results laid down in Part C of Annex I. Without prejudice to the possibility of using alternative methods as referred to in Part C, point 1, of Annex I, the maximum permitted number of samples which fail to conform to the parametric values of Part B and Table 1 of Annex I is set out in Part C and Table 4 of Annex I.