3 canlyniad
Rhestrir y canlyniadau yn ôl perthnasedd.
Cymraeg: trwydded gronni (dŵr)
Saesneg: impoundment licence
Saesneg: The Water Abstraction and Impounding (Exemptions) Regulations 2017
Saesneg: Water Resources (Abstraction and Impounding) Regulations 2006