Natural Resources Wales is responsible for dealing with large-scale, serious and organised illegal dumping incidents which pose an immediate threat to human health or the environment.
Cyfoeth Naturiol Cymru sy’n gyfrifol am ddelio ag achosion mawr, difrifol a chyfundrefnol o dipio anghyfreithlon sy’n golygu bygythiad uniongyrchol i iechyd pobl neu’r amgylchedd.