Contact this Expert Witness

  • Additional States: New York
  • Company: Troast Environmental, LLC
  • Phone: (540) 972-5967
  • Cell: (703) 627-3521
  • Fax: (540) 972-5541
  • Website:
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Specialties & Experience of this Expert Witness

General Specialties:

Toxicology and Environmental

Specialty Focus:

Chemical exposure hazard and risk assessments, Lead exposure from drinking water soil and paint, PFOA and PFOS compound hazard assessments from environmental releases, Pesticide hazard risk/hazard assessment


PhD, George Mason University; MS, West Virginia University; BA, West Virginia University

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

Retired Sr. Scientist at the USEPA. Fifteen years in the Superfund Program as chair of EPA review workgroups for lead and asbestos risk. Over thirty years of experience in performing toxicology and exposure reviews and risk assessments for pesticides, industrial chemicals, and waste products. Fifteen years of experience as an expert witness on issues including environmental risk and exposure to, environmental lead hazards and indoor lead paint risks to children and adults, conduct of and review of risk assessments for pesticides and industrial chemicals. Multiple depositions and court appearances for individual and class action cases. Accepted as an expert under Daubert and Frye standards. International experience in advising clients on establishing programs for international controls of hazardous materials including analytical laboratory improvements. Member of SOT and other science organizations.