Environmental Risk Assessment Consulting Expertise Nationwide

Solutions to support better site decision-making.

Our environmental risk assessment consultants design and implement engineering, administrative and institutional controls that protect human health and the environment, reduce liabilities and optimize tailored solutions to your unique challenges.

We integrate our proven techniques into your existing needs and offer unique benefits such as:

  • Extensive regulatory knowledge: TRC maintains an industry-leading knowledge base and thorough understanding of the ever changing regulatory environment. At the conclusion of our assessment, we deliver an actionable plan to mitigate risks and enhance compliance across all areas of your operations.
  • Innovative risk management: We develop risk management guidelines that fit your unique site and operational requirements. This minimizes the need for changes to your plans while still ensuring your staff stays safe and efficient.
  • Certified support staff: TRC’s practitioners and assessors are certified in CPR, first aid, AED and OSHA, among others, adding an extra layer of safety to your operations. We are further certified in a number of industry-specific licenses that allow us to work as an addition to your team throughout every project stage.
  • Comprehensive project support: From initial evaluations through design, implementation and ongoing maintenance, our tested practitioners will be by your side to ensure site safety and proper application of regulations and restrictions.

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Integrated Environmental Risk Assessment Services

We recognize that the completion of a human health or ecological risk assessment is a significant milestone in the pathway to issue resolution. Using risk assessment and risk management tools, we can significantly reduce the cost of cleanup and help to effectively and efficiently close a site.

In addition to preparing site-specific and community-based risk assessments, our staff of toxicologists, health scientists and engineers understand that risk communication and community relations are often integral to solving real-world challenges posed by environmental toxins.

Our services Include:

  • Site specific human health evaluation
  • Vapor intrusion assessment
  • Multi-pathway combustion risk assessment
  • Odor evaluation/lab testing
  • Emerging contaminant risk evaluation
  • Environmental consequence analysis
  • Ecological screening and baseline risk assessment
  • Risk communication
  • Litigation support
  • Soil leaching to groundwater evaluation

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Related Materials

Gain insight into the industry’s challenges and opportunities by reading our research reports.

Advance Your Project With TRC’s Risk Assessment and Toxicology Experts

Reach out to our tested practitioners to learn more.

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Sharing Our Perspectives

Our practitioners share their insights and perspectives on the trends and challenges shaping the market.

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News

TRC acquires Paustenbach & Associates, a Leader in Toxicology, Exposure Science and Risk Assessment

August 27, 2024

Paustenbach & Associates will expand TRC’s capabilities in the areas of health hazard assessments and litigation support.

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Resources

LNAPL Recovery Tips For Unconsolidated Media

August 20, 2024

Light Non-Aqueous Phase Liquid (LNAPL) is a groundwater contaminant that is not soluble in water.

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Regulatory Updates

EPA Reduces Residential Soil Screening Level for Lead

February 12, 2024

The U.S. Environmental Protection Agency Office of Land and Emergency Management released the Updated Residential Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities

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Insights

The Effects of PFAS on Human Health

February 1, 2024

Understanding what PFAS do to the body is vital, as they can negatively affect human health. Learn more about PFAS health effects with TRC Companies today.

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Resources

Solvent Plume Dechlorination

December 13, 2023

Anaerobic dechlorination is a biological process that occurs in the absence of oxygen and is primarily used to remediate chlorinated compounds, such as chlorinated solvents.

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Insights

Quality Assurance vs. Quality Control: What’s the Difference and Why Does it Matter?

November 17, 2023

TRC’s Quality Assurance system incorporates Quality Control tools such as routine Data Validation (DV) and Data Usability Assessments (DUA).

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Insights

Data Validation versus Data Usability Assessments

October 19, 2023

Collecting environmental data is a process that involves various steps and phases

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Regulatory Updates

EPA Issues Clarification of Free Product Removal Requirements

June 20, 2023

EPA recently clarified requirements for LNAPL recovery and remediation.

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Regulatory Updates

EPA Finds Trichloroethylene Presents Unreasonable Risk in Final Risk Evaluation

April 6, 2023

On Jan 9, 2023, the United States Environmental Protection Agency (EPA) revised the Toxic Substance Control Act (TSCA) to reflect a new risk determination for trichloroethylene (TCE).

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Regulatory Updates

Proposed MCLGs and MCLs for PFAS

March 15, 2023

Final Regulatory Determination for Contaminants on the Fourth Drinking Water Contaminant Candidate List

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Resources

Risk Communication Challenges for Emerging Issues

February 8, 2023

Risk communication is the exchange of real-time information, advice and opinions between experts and people facing threats to their health, economic or social well-being.

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Resources

ASTM Phase I Environmental Site Assessment Updates

February 1, 2023

Environmental due diligence is the first step in identifying potential environmental liabilities prior to the acquisition of real estate or business transfers.

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Resources

VaporSafe™ Continuous Air Monitoring Technology

January 9, 2023

VaporSafe™ continuous air monitoring technology can be used as a sustainable solution to identify a vapor intrusion pathway.

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Insights

PFAS on the Move: Fate and Transport in Sediment

January 3, 2023

PFAS tend to sorb to sediment particles and organic matter, which settle at the bottom of a waterbody, creating a reservoir of PFAS that can cycle in the environment for decades.

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Insights

Equipment Decontamination and Replacement of Legacy Aqueous Film Forming Foams

December 21, 2022

Legacy AFFF used for firefighting are a significant source of PFAS in the environment. With current and expected regulation, many entities are looking for replacements.

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Resources

Advanced NAPL Site Characterization Tools

December 14, 2022

Advanced NAPL site characterization tools can improve site understanding and remediation performance.

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Resources

What is TSCA and Why Should I Care?

December 1, 2022

This presentation provides a historical background on TSCA, regulatory requirements, regulated industries and regulated substances.

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Insights

Preparing Your RMP Facility for a Future of Extreme Weather

November 29, 2022

Facilities dealing with hazardous materials must prepare for extreme weather events that pose a risk to their operations and the community.

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Regulatory Updates

Washington State Establishes PFAS Cleanup Levels

September 21, 2022

The Washington State Department of Ecology (Ecology) recently published a list of 6 PFAS compounds that now have soil and groundwater cleanup levels

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Regulatory Updates

New National Emerging Contaminants Research Initiative

September 12, 2022

The Executive Office of the President of the United States announced a National Emerging Contaminant Research Initiative

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Regulatory Updates

EPA Issues Proposed Rule Designating PFOA and PFOS as Hazardous Substances

September 7, 2022

The EPA has issued a pre-publication version of a proposed rule to designate two PFAS compounds as hazardous substances under CERCLA.

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Insights

About Endotoxins

September 1, 2022

Levels of endotoxins have been associated with indoor air quality complaints and certain respiratory diseases in many types of buildings. Learn more.

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Insights

How to Prevent Infectious Disease in the Workplace

September 1, 2022

There are various ways infectious diseases can spread throughout the workplace. Learn how they spread and what to do next to prevent ill-health.

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Insights

PFAS Forensics – Identify the Source of PFAS

July 8, 2022

Forensics and source identification is necessary to detect the unique PFAS chemical signatures

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Regulatory Updates

EPA Announces Updated Drinking Water Health Advisories for Four PFAS Chemicals: PFOS, PFOA, PFBS, & GenX

June 24, 2022

On June 15, 2022, the EPA released updated Health Advisory Levels for four per- and polyfluoroalkyl substances (PFAS) in drinking water

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Resources

TPH Risk-Based Strategies

May 2, 2022

This presentation discusses recent developments in Total Petroleum Hydrocarbons (TPH) risk-based strategies.

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Videos

PFAS Compounds & Toxics Release Inventory

April 26, 2021

The National Defense Authorization Act of 2020 added 172 PFAS compounds to the list of chemicals that must be evaluated for reporting.

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Ecological Risk of PFAS from AFFF-Impacted Sites

June 30, 2020

The facts on evaluating exposure to wildlife

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TRC’s Reporting Tool Can Help Identify New PFAS under the TRI

May 19, 2020

While utilities often work in technical silos, NERC auditors are trained to cross check compliance evidence and data between interrelated standards.