EWA (of EU FRIEND) Stations are part of the Global Runoff Database and discharge data are regularly updated in the course of updates to the global database.
Since it's inception in 1985 the European Water Archive (EWA) collected long-term daily flow data and catchment information from more than 4000 river gauging stations in 30 countries. In October 2014 the EURO-FRIEND-Water meeting in Montpellier concluded that the EWA will no longer be updated and will be "frozen at its current state". The Global Runoff Data Centre (GRDC), Federal Institute of Hydrology, Koblenz, Germany, hosts the European Water Archive since 2004.