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Karen Hathaway

Senior Toxicologist

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Karen Hathaway has more than 28 years of experience with projects involving risk assessment, risk management and environmental compliance. She develops site-specific cleanup criteria and prepares human health risk assessments, vapor intrusion assessments, risk management plans, liability assessments, conceptual site models, no further action (NFA)/closure plans, and due diligence.

Karen has experience with many environmental remediation programs, including the Comprehensive Environmental Response, Compensation & Liability Act (CERCLA or Superfund), Resource Conservation and Recovery Act (RCRA), Toxic Substances Control Act (TSCA), and Part 201 of Michigan's National Resource and Environmental Protection Act (Act 451). Her work also includes assessing the risks associated with many contaminants including arsenic, trichloroethylene (TCE) and per- and polyfluoroalkyl substances (PFAS).


(616) 512-7015


MS, Environmental Chemical & Toxicology, University of Wisconsin - Madison

BA, Biology, Kalamazoo College


Barr Engineering Co.
4771 50th Street SE
Grand Rapids, MI 49512

Phone: 616-512-7000
Fax: 616-554-3211
Toll free: 800-632-2277