Drains Llwydcoed
Penywaun Cwmdare Hirwaun Aberdare Abernant Aberaman Cwmbach Cefn-coed-y-cymmer Penderyn Cwmaman Merthyr Tudful Maerdy Rhigos Abercanaid Treherbert Ferndale Mountain Ash Treorchy Pontneddfechan Troedyrhiw Dowlais Pont Sticill Aberfan Cwmparc Llanwonno Ystradfellte Glynneath Llwynypia Fochriw Clydach Vale Blaengwrach Tonypandy Blaengwynfi Glyncorrwg Abergwynfi Treharris Rhymney Nant-y-moel Quakers Yard Rhondda Price Town Abercynon Porth Deri Blaengawr Nant-y-bwch Trehafod Tirphil Croeserw Evanstown Coelbren Ogmore Vale Onllwyn Nelson New Tredegar Cymmer Gilfach Goch Pontycymer Dinas Resolven Sirhowy Tredegar Bargoed Hendreforgan Gelligaer Tonyrefail Pen-y-cae Pontypridd Aberbargoed Seven Sisters Duffryn Ebbw Vale Bedwellty Victoria Ystrad Mynach Pengam Maesteg Hengoed Garth Blackmill