commiss decis decemb amend annex council decis eec decemb establish common procedur exchang inform qualiti surfac fresh water commun eec commiss european commun regard treati establish european econom commun regard council decis eec decemb establish common procedur exchang inform qualiti surfac fresh water commun amend regul eec articl thereof request receiv franc itali portug feder republ germani amend annex council decis commiss satisfi amend fulfil requir articl decis eec adopt decis articl annex decis eec amend respect sampl measur station list annex decis articl decis address member state brussel decemb commiss carlo ripa di meana vice presid oj oj annex list amend annex decis eec sampl measur station involv exchang inform franc sampl measur station list river melun st sein replac ponthierri bridg st sein roann villerest bridg upstream roann st loir replac brienon downstream pouilli sou charlieu bridg rn st loir orléan downstream orléan st loir replac orléan upstream orléan st loir nant upstream nant st loir replac la possonièr sncf bridg downstream la possonièr st loir mulatièr upstream confluenc rhône st rhône replac lyon upstream confluenc rhône mazaryk bridg st rhône pont carnot downstream lake geneva upstream génissiat dam st rhône replac pont de pougni point rhône enter franc st rhône lyon downstream confluenc saôn chass sur rhône st rhône replac lyon upstream confluenc saôn poincaré bridg st rhône itali sampl measur station list river pont adig km upstream mouth adig replac bronzolo pont vadena km upstream mouth adig subbiano km upstream mouth arno replac buon riposo km upstream mouth arno san giovanni alla vena km upstream mouth arno replac calcinaia km upstream mouth arno portug sampl measur station list river porto station douro replac barragem de crestuma station douro barca alva station douro replac pinhão station douro miranda douro station douro delet feder republ germani sampl measur station list river goch km upstream confluenc meus nier replac duisburg km upstream confluenc rhine ruhr