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Contaminant Investigation

Investigating known or suspected environmental contamination brings Envirologic’s team of experts to projects throughout Michigan and the Great Lakes Region. Our Environmental Investigation Group has decades of experience working at sites contaminated with industrial solvents, petroleum, metals, and per- and polyfluoroalkyl substances (PFAS), among other concerns. We have successfully performed projects for a wide range of market sectors including industry, manufacturing, transportation, petroleum, utilities, agribusiness, municipalities, government, and others. Project size varies greatly among our clients, from former automotive service stations less than an acre in size to massive decommissioned power plants.

Envirologic approaches each project with the client’s “end goal in mind” and works in tandem with our clients to establish project objectives upfront, so that our team can develop the appropriate investigation plan to collect impactful data. Data from the investigation is used to evaluate the feasibility of various risk management options using factors such as regulations, cost, effectiveness, duration, and risk to human health. Once the data has been analyzed, we develop a logical remediation or mitigation strategy to bring clients’ projects to completion.

Our team of scientists and engineers works with businesses in Michigan and out of state to provide boots-on-the-ground and the expertise necessary to support successful negotiations with federal, state, and local regulatory agencies. Envirologic works as your project partner through every step of the contaminant investigation process to ensure clients understand the overall process, techniques we employ, data we collect (and our interpretation of the data), and most importantly, the risk reduction and management strategy we develop for each unique project.


  • Design and implementation of contaminant investigations under the:
    • Resource Conservation Recovery Act (RCRA)
    • Comprehensive Emergency Response Compensation Liability Act (CERCLA)
    • Toxic Substances Control Act (TSCA)
    • Michigan Natural Resources and Environmental Protection Act (Public Act 451 of 1994, as amended), specifically Parts 22, 31, 111, 115, 201, and 213
  • Design and implementation of feasibility studies, corrective action plans, remedial action plans, and risk-based closures
  • Aquifer and site characterization assessments
  • State and federal cleanup sites including RCRA Part B Hydrogeological studies
  • Asbestos and hazardous material building surveys
  • Lead inspections and risk assessments
  • Radon assessments and sampling
  • PFAS assessment and sampling
  • Underground storage tank assessment, removal, and closure
  • Remediation system operation
  • Vapor intrusion assessment and mitigation
  • Environmental sampling (air/vapor, groundwater, soil, sediment, soil gas, surface water, etc.)
  • Due care investigations