| Ddisgrifiad / Description | Llanfairfechan, Penmaenmawr, Cowlyd Valley works, Communication pipes, Lomax Cowlyd Valley, Coastal area supply, Marl Hall, P & A.Bonus Scheme, Proof of Evidence, Penmachno, Trefriw. Coastal area.
Plans: Dulyn Trunk mains from Plas Dulyn to Llandudno Drg No.T2/01/71. Cowlyd Trunk Mains Dolgarrog to Glan Conwy Corner. Drg. No. TC/11/60. |