Mike Johns

Mike is an aquatic toxicologist and ecologist with 40 years of experience investigating contaminated sediments, conducting ecological risk assessments, and directing regulatory compliance. He has broad knowledge of the effects of toxic pollutants on aquatic organisms; risk-based cleanup that reflects regulatory policy, site-specific conditions, and background conditions; and compliance with landmark federal and state regulations. Mike provides strategic leadership on complex projects, including natural resource damage assessment processes, and frequently engages with regulatory agencies to resolve technical disputes. He also supports clients in regulatory reform, liability management, and litigation, serving as an expert witness on ecological risk, recovery, and cost allocation at industrial, mining, and port sites.