Skip to content
Coal combustion residuals risk assessment


Our evaluation assures community and regulators that coal ash posed no health risk


  • Haley & Aldrich found a data-driven resolution to an emotionally charged dispute between power company Ameren and the community near one of its power plants.
  • To address concerns that coal ash from Ameren’s plant was impacting nearby water sources, our well-respected coal ash and risk assessment experts conducted rigorous monitoring and testing of wells, groundwater, and surface water. The data definitively indicated no adverse impacts on human health or the environment from coal ash.
  • We summarized our findings in easy-to-understand reports and presentations, helping Ameren secure the permitting to keep operating its plant.
  • We also helped Ameren develop a standard risk evaluation for use at other facilities.

For more information, contact:

Jay Peters

Principal Consultant, Risk Assessment