Mid-Glamorgan Water Board, Glamorgan River Authority and Welsh National Water Development Authority/Welsh Water Authority.
Llanharry [also spelt 'Llanharri'] Pumping Station, sewer tunnel, and Iron Ore Mine, including proposed opencast coal working, Llanilid site, and Llanharri Secondary School surface water drainage; Llantrisant New Town including industrial waste disposal, Tythegston Quarry; Pwllwy Source Works and Pumping Station; River Ogmore Abstraction Scheme: Proposed pumped storage reservoir sites and site investigation, and Cefn Hirgoed Reservoir.
Correspondence, plans, maps, reports including joint Morton and Rowe, diagrams, rainfall figures, photographs and negatives (including Tythegston Quarry), contract documents, borehole records, test data, etc.
Also Ogwr Borough Council correspondence re proposed waste disposal sites, 1975-1978, under the Control of Pollution Act 1974, Refuse Disposal.
(Morton was recommended to Ogwr Borough Council as a consultant by the Mid-Glamorgan Water Board).