The Welsh Government is required to identify popular bathing waters in Wales, monitor their water quality and keep bathers well informed about water quality at these identified sites.
Cyfoeth Naturiol Cymru (dolen allanol) sy’n gyfrifol am orfodi mesurau diogelwch ynghylch cronfeydd Cymru a nhw fydd yn gyfrifol am nodi’r cronfeydd sydd mewn perygl.