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2. World of mine tailings failures – from 1915. Retrieved January 15, 2022, from https://www.resolutionmineeis.us/sites/default/files/references/bowker-2019.pdf.
3. EARTHJUSTICE (n.d. d). Pennsylvania and coal ash disposal in ponds and landfills. Retrieved April 30, 2019, from https://earthjustice.org/sites/default/files/files/Pennsylvania-Fact-Sheet-2014-12.pdf.
4. Barker, S. (2009). Leaks, water worries shared with Pa., but TVA breach bigger. Retrieved from http://archive.knoxnews.com/news/state/leaks-water-worries-shared-with-pa-but-tva-breach-bigger-ep-410533778-359646531.html/.
5. Walton, W. H. and Butler, W. (2009). Root cause analysis of TVA Kingston dredge pond failure on December 22. 2008.