commiss opinion april plan releas radioact effluent covra nv radioact wast process storag facil sloe netherland pursuant articl euratom treati euratom septemb commiss european commun receiv dutch govern accord articl euratom treati gener data plan releas radioact effluent result oper covra nv radioact wast process storag facil sloe basi data consult group expert commiss drawn opinion distanc facil nearest point territori member state case belgium kilometr normal oper condit discharg liquid gaseou effluent produc exposur popul member state signific point view health solid radioact wast result process low intermedi level wast treat store site event unplan discharg radioact effluent follow accid magnitud consid gener data dose receiv popul member state signific point view health commiss consid implement plan releas radioact effluent covra nv radioact wast process storag facil sloe normal oper event accid magnitud consid gener data liabl result radioact contamin signific point view health water soil airspac member state commiss carlo ripa di meana member commiss