Mark Johnson

Mark conducts and oversees EHS and ESG transactional due diligence and risk and liability valuations for a variety of manufacturing, industrial, and commercial properties. He draws on experience on thousands of Phase I and II site assessments and compliance audits at industrial, manufacturing, and commercial facilities across the United States, Canada, Latin America, South America, Europe, Asia, and Australia. Clients engage Mark to undertake remediation programs under enforcement programs including voluntary cleanup programs, RCRA, and CERCLA. He has supported litigation projects and insurance cost-recovery claims in many jurisdictions throughout the United States.

Industrial, commercial, and attorney clients turn to Mark for help evaluating potential future environmental remediation requirements and costs associated with industrial facilities as part of due diligence and transaction support, and insurance clients seek his support evaluating cost-recovery claims. Mark develops cost estimates for resource planning, establishing financial reserves, and for handling insurance, litigation matters, and third-party negotiations. He routinely provides his clients with environmental cost estimates based on his environmental liability valuation (ELV) services.

Mark has developed numerous remedial investigation work plans and reports, baseline human-health risk assessments, feasibility reports, and remedial-action closure reports as part of state-led enforcement programs, including underground storage tank and voluntary cleanup programs. He currently manages consulting and expert-testifying engagements on several multidistrict litigation (MDL) matters involving products liability and toxic tort.

To support clients on complex projects, Mark has designed and implemented many remedial technologies, including enhanced aerobic bioremediation, soil excavation, soil-vapor extraction, dual-phase extraction, and in situ chemical oxidation. He specializes in earth sciences, hydrogeology, and environmental engineering. Earlier in his career, he managed numerous environmental claims and ongoing litigations including toxic tort, asbestos, pollution, chemical-exposure, and hazardous-waste claims for a leading insurance carrier. Mark has experience supporting numerous government-sector site investigation and remediation projects for the United States Army Corps of Engineers and United States Environmental Protection Agency.

Contact Mark at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1-410-382-4438.