The purpose of this obligation is to reduce the risks of uncontrolled releases of water, which may lead to loss of life occurring, to an acceptable level.
Diben y rhwymedigaeth hon yw lleihau’r risgiau, hyd lefel dderbyniol, y gallai dŵr gael ei ryddhau mewn modd nad yw’n bosibl ei reoli, a allai beryglu bywydau pobl.