The Flood and Water Management Act 2010 included important provisions on sustainable drainage which would introduce new arrangements for approval and adoption of sustainable drainage systems.
Roedd Deddf Rheoli Llifogydd a Dŵr 2010 yn cynnwys darpariaethau pwysig ar draenio cynaliadwy a fyddai’n cyflwyno trefniadau newydd i gymeradwyo a mabwysiadu systemau draenio.