Trihydro Corporation | Leader in Environmental & Engineering Solutions

In 1984, a geologist and a chemist with a vision and a passion for developing sustainable solutions founded Trihydro. Since then, we have advanced purposefully in environmental science, engineering, technology, and regulatory compliance to help our clients achieve their business objectives.

Today, we have more than 500 team members across the country, and we continue to push ourselves to provide effective, responsive, and safe solutions. Our culture of integrity and fairness has made us one of the nation’s top engineering and environmental firms. As we continue to grow, we won’t lose sight of doing business our way—the way our employees, partners, and clients deserve.

Solutions you can count on

We offer comprehensive environmental services, engineering expertise, and technology solutions.
We focus on how each provided service factors into the bigger picture, so our solutions fully integrate into our clients' overall visions.

Our services

People you can trust

Trihydro has 500 people dedicated to service excellence. Our mid-size means
we have the expertise and manpower to provide project solutions, while still being small
enough to prioritize our individual clients' needs.

Our team

OUR ETHICS

In 2005, we adopted a cultural ethos called the Code of the West, which influences how we “show up” every day. We’re proud of the diverse technical experts and thoughtful minds who come to work ready to tackle each day’s challenges, and the following principles underpin everything we do:

Live Each Day With Courage
Take Pride In Your Work
Always Finish What You Start
Do What Has To Be Done
Be Tough, But Fair
When You Make A Promise, Keep It

Ride For The Brand
Talk Less And Say More
Remember That Some Things Aren’t For Sale
Know Where To Draw The Line
Leave It Better Than You Found It*

- James P. Owen, Cowboy Ethics, reprinted with permission; *added by Trihydro

news & resources

EPA Issues Final MCLs for PFAS: Get Ready for Compliance

As of April 10th, 2024, the EPA has issued final Maximum Contaminant Levels (MCLs) for six per- and polyfluoroalkyl substances (PFAS). The final rule aims to place further controls on PFAS as outlined EPA’s Action Plan and Roadmap, which together aim to better prevent and manage human health and environmental impacts.

How EPA's Super Emitter Program Affects Oil & Gas Facilities

With nearly half of methane emissions stemming from a small fraction of sources in the oil & gas industry, we dive into EPA's new Super Emitter Program and how it will impact the industry.

PFAS Analytical Method 1633: The Next Generation of PFAS Sampling & Analysis

Learn about the recent advancements in PFAS analytical methods including Method 1633 and other recent methods developed to address PFAS in multiple matrices, such as on plastics and in the air.

EPA’s Risk Management Program (RMP) – Final Rule

The EPA's Risk Management Program (RMP) is now finalized. EPA RMP rule amendments include regulatory requirements and deadlines that facilities using hazardous substances need to be aware of.

EPA Proposes to List 9 PFAS as Resource Conservation and Recovery Act (RCRA) Hazardous Constituents

The US EPA has proposed listing 5 additional PFAS (PFNA, PFHxS, PFDA, PFHxA, PFBA) as Hazardous Constituents under Resource Conservation and Recovery Act (RCRA).

EPA Issues Update on PFAS Strategic Roadmap

The EPA has published the 2023 Annual Progress Report (2023-APR) to provide updates on the progress made in implementing the Roadmap. In this article, we summarize key points from the 2023-APR, including accomplishments and expectations.

EPA’s Proposed Fenceline Monitoring Requirements for Synthetic Organic Chemical Manufacturing Industry (SOCMI) and Group I and II Polymers and Resins Industries

With a final rule due any day now, learn more about the fenceline monitoring requirements and what affected facilities can do to prepare.

In First Update Since ’87, EPA Proposes New Source Performance Standards for Volatile Organic Liquid

We review key changes included in EPA's proposed NSPS Subpart Kc.

EPA Issues New TSCA PFAS Reporting Rule

We dig into the EPA's brand new TSCA PFAS reporting and recordkeeping rule. Learn more about compliance considerations.

EPA Designates PFOS and PFOA as CERCLA Hazardous Substances. What are the Impacts?

On April 19, 2024, the US EPA announced the final designation of two PFAS compounds, PFOA and PFOS, as hazardous substances under CERCLA, also known as Superfund. We cover the rule and its anticipated impacts.

EPA Designates PFOA & PFOS as Hazardous Substances

Firefighting Foam & PFAS: AFFF Replacement

While AFFF products containing PFAS are reliable for firefighting, growing concerns over PFAS in the environment have forced a fresh look into the risk-reward calculation related to AFFF use. Learn more about AFFF and potential alternatives such as fluorine-free foams.

Testimonial

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