As a leader in environmental remediation solutions, we've enjoyed collaborating with our diverse clients on projects of all sizes and levels of complexity for the past 38 years.

Our dedicated team of engineers, geologists, and scientists work diligently to identify and implement focused and effective solutions for your environmental and remediation challenges.

  • DollarsWe work hard to maximize the value of every dollar spent.
  • GoalsAchieving your remediation goals is our focus and we adapt quickly to changing priorities.
  • PartnersWe stay sharp by partnering with universities, associations, laboratories, and regulators.


Meet a few of our team members who can help you achieve your site objectives. We have the expertise to select a remedial alternative to address your site's environmental and regulatory challenges in a technically sound, environmentally responsible, and cost-effective manner. We have experience implementing a variety of remedial approaches, including natural source zone depletion, monitored natural attenuation, in situ chemical oxidation, in situ chemical reduction, bioaugmentation, enhanced bioremediation, and more.

Rajib Sinha, PE

Rajib has 31 years of experience investigating and remediating contaminated sites. He is an expert in many regulatory frameworks, including the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA); Resource Conservation and Recovery Act (RCRA); Superfund Amendments and Reauthorization Act (SARA); Toxic Substances Control Act (TSCA); Ohio Environmental Protection Agency (EPA) Voluntary Action Program (VAP); and Bureau of Underground Storage Tank Regulations (BUSTR).

Ray Vaské

Ray enjoys over 28 years of experience evaluating and remediating complex sites exhibiting diverse contaminants, including chlorinated solvents, petroleum hydrocarbons, and metals. Ray's adaptive approach is geared toward effectiveness and affordability, providing an optimized balance of traditional and innovative remedies to maximize clients' return on investment.

Ron Pelle, PG, CPG

Ron is a professional geologist with over 34 years of experience helping clients develop and implement cost-effective investigation and remediation strategies to address their environmental liabilities. His areas of expertise include project & portfolio management, contamination assessment, soil & groundwater remediation, geologic site characterization, and Phase II environmental site assessments (ESAs).

Kelly Birkenhauer, PG, VAP CP

Kelly has 15 years of experience in underground storage tank investigations, remediation, and risk assessment; Ohio EPA’s VAP and Division of Environmental Response and Revitalization; and TSCA investigation and remediation. Her areas of expertise include due diligence (Phase I/II ESAs); site characterization, investigation, and remediation; soil management; regulatory interface; insurance claim preparation; and environmental compliance. 

Katie Pritchard, PG

Katie is a professional geologist with 18 years of experience in environmental science, groundwater assessment, and remediation performed under RCRA, CERCLA, SARA, the U.S. EPA Coal Combustion Residuals Rule, and Ohio VAP.  Her areas of expertise include site characterization, investigation and remediation, vapor intrusion, soil and waste management, project execution and budget management, and community stakeholder engagement.  

Chris Davis, PG

Chris is a professional geologist with over 18 years of experience with environmental investigations, environmental compliance, and remediation under RCRA, CERCLA, Kentucky Department of Environmental Protection Superfund, and Illinois EPA. His expertise includes site characterization, investigation, and remediation; soil and waste management; project management; regulatory interface; and community stakeholder engagement.  

Justin Eichert, EIT

Justin is an environmental engineer with over 11 years of experience. He leads human health and ecological risk assessments, vapor intrusion, natural source zone depletion, and automated environmental monitoring efforts at petroleum and chlorinated impacted sites across the United States. He has successfully applied monitored natural attenuation and natural source zone depletion as long-term remediation programs and has helped implement green remediation systems.

Scott Bick, PG

Scott has worked in the environmental field for 16 years, with experience in designing and implementing environmental investigations and remediation efforts. His hydrogeologic experience includes characterization of a fractured bedrock regime to understand its aquifer physical properties for groundwater quality investigations. With exceptional project management skills, Scott works effectively with various stakeholder groups, including clients, regulators, and community members, to drive project success.

Ready to get the job done?

We're excited to get to work. Get in touch with our Midwest environmental remediation team to discuss your project needs.


We're on a Mission to Exceed Your Expectations

Working with Trihydro truly feels like a partnership. Whatever the circumstance is, we are in it together to resolve the environmental task at hand. It is always about doing the right thing, which makes us always on the same page. I have learned so much from Trihydro teammates over the years and look forward to working with them for many years to come.

- Timothy Smith, Director, Facilities, Central Ohio Transit Authority