Reports and papers for all of Wales or multiple sites:
Edwards, P (2021) Mine Water and the Environment in Wales - a personal insight. Mine Water and the Environment (2021) 40:813-814
The Coal Authority (2016) A Review of Priority Metal Mine Sites in Wales - Options Appraisal for Metal Mine Water Remediation. August 2016
Simkin, J (2015) A Survey of Calaminarian Grassland in Mid-Wales. Natural Resources Wales Evidence Report No:061
Mullinger, N (2004) Review of Environmental and Ecological Impacts of Drainage from Abandoned Metal Mines in Wales. Environment Agency Wales Report Ref: EATW/04/02
Environment Agency Wales (2002) Metal Mine Strategy for Wales
Gething, J (1999) A biological survey to assess the impact of abandoned metal mines on watercourses in Southwest Wales. Environment Agency Wales report TMW/99/46