Alyn CatchmentAnglesey CatchmentCarmarthenshire coastCeredigion coastClwyd CatchmentCoast from Aberthaw to Severn BridgeConwy CatchmentDyfi CatchmentDysynni CatchmentEastern CleddauElwy and Gele CatchmentGlaslyn and Dwyryd CatchmentGower penninsulaLleyn Peninsula and Cardigan Bay CoastlineLower Dee ValleyLower TaweLower TeifiLower TowyMawddach and Wnion CatchmentMid CeredigionNorth and west PembrokeshireNorth Gwynedd CatchmentNorth Wales CoastPembrokeshire coastRhondda RiversRiver Arrow in PowysRiver CadoxtonRiver CothiRiver CynonRiver ElyRiver Ewenny and Vale of Glamorgan westRiver Lugg in PowysRiver NeathRiver RhymneyRiver TaffRiver ThawRiver Usk in Monmouthshire and NewportRiver Usk in PowysRiver Wye in PowysRivers Afan and KenfigRivers Bran and GwydderigRivers Ebbw, Sirhowy and LwydRivers GwendraethsRivers in LlanelliRivers Leri and ClarachRivers Llynfi and OgmoreRivers Loughor and AmmanRivers Nant-Y-Fendrod and Nant BranRivers Rheidol and YstwythRivers Taf and CyninRivers Wye and Monnow in MonmouthshireSouth PembrokeshireSwansea Bay and the Gower coastTidal Area at CroftyUpper Dee ValleyUpper Severn in PowysUpper TaweUpper TeifiUpper Teme upstream and including KnightonUpper TowyUsk EstuaryVyrnwy CatchmentWest Anglesey CoastlineWestern CleddauWye Estuary in Monmouthshire