infrastructure providing a series of treatment processes aiming to reduce the level of pollution of wastewater received to an acceptable level before discharge into the receiving waters
urban waste water treatment plant', ‘EU-funding of urban waste water treatment plants in the Danube river basin: further efforts needed in helping Member States to achieve EU waste water policy objectives’, European Court of Auditors, 2015, http://www.eca.europa.eu/Lists/ECADocuments/SR15_02/SR_DANUBE_RIVER_EN.pdf [23/03/2016]