Beth yw costau amcangyfrifedig y Llywodraeth ar gyfer sefydlu corff rheoleiddio newydd ar gyfer dŵr yng Nghymru?
Wedi'i ateb gan Y Dirprwy Brif Weinidog ac Ysgrifennydd y Cabinet dros Newid Hinsawdd a Materion Gwledig | Wedi'i ateb ar 25/09/2025
At this stage, our priority is to work with the UK Government on water reform and to take the necessary legislative and administrative steps to enable that reform.
The full costs of establishing a new regulatory body for water in Wales will need to be considered as part of future legislation and accompanying economic impact assessment.