Fe gafodd yr adolygiad mwyaf i’r sector ers ei breifateiddio ei gynnal gan y Comisiwn Dŵr Annibynnol yn dilyn pryderon eang ynghylch llygredd, biliau a thâl rheolwyr.
Fe wnaeth 88 o argymhellion, gan gynnwys diddymu’r system sy’n rheoleiddio cwmnïau dŵr yng Nghymru a Lloegr a sefydlu dau gorff ar wahân ar gyfer y ddwy wlad.
Doedd yr adroddiad, dan arweiniad cyn-ddirprwy lywodraethwr Banc Lloegr, Syr Jon Cunliffe, ddim yn ystyried a ddylid ailwladoli’r diwydiant.
Ond wrth awgrymu systemau rheoleiddio ar wahân yn y ddwy wlad, mae’r Comisiwn yn cydnabod “natur wahanol ac unigryw” sector dŵr Cymru a ffactorau diwylliannol “sensitif” fel hanes boddi Cwm Celyn er mwyn cyflenwi dinas Lerpwl â dŵr.
“Mae arwyddocâd diwylliannol dwfn ynghylch dŵr yng Nghymru, ac mae’n parhau i fod yn fater sensitif, yn enwedig yn sgil digwyddiadau hanesyddol fel creu cronfa Tryweryn,” dywedodd.
Ychwanegodd bod system Cymru’n wynebu heriau gwahanol, gyda chyfran uwch o dir yn dir amaethyddol.
Y cwmni nid-er-elw Dŵr Cymru sy’n cyflenwi mwyafrif y cwsmeriaid yng Nghymru, ac mae cwmni Hafren Dyfrydwy’n gwasanaethu’r gweddill.
Mae’r Comisiwn yn “cydnabod y bydd rhai newidiadau yn gymhleth a hirfaith, gyda’r potensial i greu cryn ansicrwydd”.
BBC News
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