NiD_GW_Conc http://dd.eionet.europa.eu/GetSchema?id=TBL7761 http://dd.eionet.europa.eu/GetSchema?id=TBL7761 46834 CountryCode null 57916 ND_NatStatCode null string 50 57895 ND_StationType null 57910 ND_BeginDate null 57911 ND_EndDate null 32336 ND_NoOfSamples null integer 4 57914 ND_MaxValue null 58046 ND_TrendValue null 57913 ND_AvgAnnValue null