William (Bill) Rish, Ph.D.
Principal Engineer


Phone(614) 602-6080
Address31 College Place
Suite B118
Asheville, NC 28801



Professional Profile

Dr. William (Bill) Rish is a Principal Engineer with ToxStrategies, and is based in Dublin (Columbus), Ohio. He has more than 35 years’ experience in engineering, site assessment and remediation, risk assessment, and probabilistic uncertainty analysis. He has prepared hundreds of risk assessments and managed numerous large, complex site investigations and remediation projects, and has been active for many years in the development of federal and state rules, guidance, and policy. Dr. Rish was a pioneer in the development of probabilistic methods for evaluating environmental liability (costs), and applies these methods for environmental reserve estimation, insurance settlements, merger and acquisition due diligence, and other business decisions.

Dr. Rish has worked across the nation for responsible parties managing sites subject to CERCLA, RCRA Corrective Action and Closure, and state orders and voluntary action. He also has worked on Department of Energy and Department of Defense projects. In addition, he has a strong background in systems failure and accident analysis, including chemical and nuclear systems. Recently, he has been providing services and workshops to regulators, attorneys, and industry on communicating environmental risk to the public.

Dr. Rish actively participates in working groups and committees. He is past chairman of the Health Risk Subcommittee of the Marcellus Shale Coalition; is a member of the Induced Seismicity Workgroup of state oil and gas regulators and co-author of their primer for state regulators; and is on the Operational Excellence & Sustainability Committee of the Ohio Chemistry Technology Council. Dr. Rish is a regularly invited speaker on a wide range of topics related to risk assessment, uncertainty analysis, risk communication, and liability analysis.