Authors: Victor Medina & Mike Eberle | Décembre 21, 2022
Summary
Many users of Legacy C-8 Aqueous Film Forming Foams (AFFF) are considering changing to foams to minimize release of PFOA, PFOS and 8:2 FTS. Modern C-6 AFFF and fluorine free foams (FFF) are replacement options. FFF is preferable from an environmental perspective, but current FFF formulations are inferior in firefighting characteristics to legacy C-8 AFFF and modern C-6 AFFF. In replacing the legacy C-8 foam, equipment decontamination is recommended. The process should be carefully planned and PFAS contaminated residuals properly managed.
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Background
Legacy (AFFF) used for firefighting are a significant source of poly-, perfluoroalkyl substances (PFAS) in the environment. Key PFAS from these foams are discussed below:
- Perfluorooctanoic acid (PFOA) and Perfluorooctanesulfonic acid (PFOS), which are long-chain C8 PFAS, have been the initial focus of regulatory criteria setting and some states have enforceable drinking water standards ranging from 8 to 70 nanograms per liter (ng/L). In 2022, the U.S. Environmental Protection Agency (EPA) issued lifetime drinking water health advisories of 0.0004 and 0.020 ng/L for PFOA & PFOS, respectively, and the EPA is expected to propose enforceable maximum contaminant levels (MCLs) for PFOA and PFOS in the near future.
- 8:2-fluorotelomer sulfonate (8:2 FTS) is another long-chain C-8 PFAS that is currently not regulated in drinking water but readily transforms into PFOA.
AFFF is applied to fires via firefighting equipment. This includes fire extinguishers, firefighting vehicles and fixed systems (e.g., foam gun systems used to contain fires around tanks and fuel storage areas and foam dispersing systems). AFFF concentrate is placed in these devices and foam is generated by mixing the concentrate with water/air under pressure using specialized nozzles.
With current and expected regulation, many entities are exploring the process to replace their legacy AFFF (C-8) with other short-chain AFFF (C-6 fluorotelomer sulfonates) or fluorine free foams (FFF). This requires removal of the legacy AFFF and decontamination of the firefighting equipment. Cost analyses indicate that it is generally much less expensive to decontaminate firefighting equipment than it is to replace it. However, some replacement foams may differ in density/viscosity, which may require replacement of pumps, valves and/or nozzles, which would increase the decontamination costs. Very small systems and fire extinguishers would likely be less expensive to simply replace.
TRC reviewed processes and data from industrial decontamination efforts and papers/reports and studied research conducted by the Department of Defense Strategic Environmental Research & Development Program/Environmental Security Technology Certification Program (SERDP/ESTCP) to develop recommendations.
Legacy AFFF Properties
Properties of legacy AFFF that make it very effective for fire suppression include:
- The ability of the AFFF to form a thin, but stable, film on the water interface that smothers the fire. This film also prevents reignition
- Viscosity and density similar to water, allowing for easy pumping and dispersal
Replacement Foams
There are two options available to replace legacy AFFF concentrate. (1) Modern Fluorotelomer AFFF, also called C-6 foam, uses short-chain fluorotelomer sulfonates and (2) Fluorine Free Foams (FFF) that use a variety of fluorine free organic surfactants. The table below compares these replacement options and legacy AFFF.
Replacement Foams Versus Legacy AFFF | |||
---|---|---|---|
Characteristics | C-8 Legacy AFF | Modern C- 6 AFFF | FFF |
Environmental Concerns | High environmental concerns. Contains PFOA/PFOS or compounds that may transform to these compounds. | Uncertain environmental concern. Does not contain or transform to PFOS/PFOA. Can transform to perfluoroheptanoic acid (PFHpA) that is regulated in several states. | Very little environmental concern associated with PFAS but foam contains higher concentrations of hydrocarbon surfactants that could pose a risk if released to surface water. Overall concerns much lower than C-8 Legacy or C-6 AFFF. |
Effectiveness of Suppressing Fuel/ Chemical Fires | Excellent | Comparable to C-8 Legacy AFFF | Inferior to C-8/C-6 foams |
Ability of Foams to Prevent Fire Reignition | Excellent | Comparable to C-8 Legacy AFFF | Inferior to C-8/C-6 foams |
Compatibility of Foams with Existing Firefighting Equipment | Fully Compatible | Highly compatible. Similar density and viscosity to C-8 Legacy AFFF |
Low compatibility. Most have high viscosity and greater density. Existing pumps, valves and nozzles may need to be replaced. |
From an environmental perspective, FFFs are preferential because of the uncertainty of the toxic characteristics of shorter chain C-6 PFAS compounds. In terms of fire suppression, modern C-6 fluorotelomer AFFF performs comparably to that of the C-8 legacy foams. FFFs may have utility for sites with isolated chemical fire hazards where longer extinguishing times are acceptable. However, most chemical fires will require replacement foams with extinguishing characteristics that C-6 fluorotelomer foams exhibit. There is substantial investment into the development of FFF, so it is possible that improved products will be available in the future. When switching foams, check for compatibility to existing pumps, valves and nozzles.
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Foam Removal and Decontamination
Foam removal and decontamination should be carefully planned. This includes estimating waste volumes (AFFF concentrate, flushes and rinsates), worker protection, sufficient storage capacity for residuals, leak minimization processes and eventual management and disposal of collected residuals.
The first step for replacement is removal of the legacy foam from the equipment. The foam can be removed via drains at low points in the system, and the removal should be carefully managed to minimize accidental releases.
There are currently no existing requirements for the decontamination of firefighting equipment at the federal level. TRC recommends that decontamination be conducted because residual C-8 foam in the system could result in mixing with the replacement foam and the subsequent release of C-8 PFAS to the environment when the new foam is applied. After draining the entire system of AFFF concentrate:
- Conduct a foam flush, which is a rinse, or series of rinses, until foaming is no longer found in the rinsate.
- Remove and replace disposable elements like bladders and hoses.
- Consider conducting detailed, focused cleaning of valves, elbows, flanges and other elements that may be resistant to the flushing process or removing and replacing these.
- Conduct triple or quadruple rinse to remove the majority of legacy PFAS contaminants. Each rinse should recirculate from 45 minutes to 1 hour before discharging and collecting.
- The foam flush and rinsate water could be treated onsite to reduce the volume needed for disposal. Potential treatments include granular activated carbon (GAC), ion exchange (IX) or foam fractionation (FF).
- Take care to minimize any leaks or accidental releases of the foam flush/rinsate. Collected rinsates should be stored with secondary containment prior to treatment or disposal.
- Laboratory analysis of the final rinsate is an option, but is often not practical because of the need to return the firefighting equipment to service. Further, there are no established standards or advisories to meet.
- Contaminated residuals (AFFF concentrate, rinsates, spent treatment media, etc.) should be managed appropriately.
Studies have shown that legacy PFAS can partition on surfaces in the firefighting equipment, including stainless steel materials. These can be released over time, causing “rebound.” If this is a concern, consider the following:
- Commercially available additives can be used to improve the AFFF decontamination.
- Solvents like methanol/ethanol or non-foaming surfactants could also be used to enhance decontamination efficiencies, although added solvents must be considered in the evaluation of disposal options.
- For legacy C-8-based foams, heated water can be used to improve the mass transfer from the surfaces to the rinsate water.
Flushing Process Options
Disposal of Residuals
Responsible disposal of the residuals should be conducted. As part of the planning process, discussed in the Foam Removal and Decontamination section, volumes of residuals should be estimated as part of the planning process and these estimates can be used to estimate disposal costs. Approaches for residuals management include incineration and landfilling with onsite methods under development. TRC can assist with making appropriate selections.
How Can TRC help?
If changeout of C-8 foam is desired, then TRC can assist in recommending a suitable foam replacement and develop plans for foam removal and equipment decontamination. TRC can assist in finding a quality contractor to conduct the foam removal and equipment decontamination and can develop plans to manage residuals from legacy foam removal and equipment decontamination. Contact our experts below to learn more.
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Utilisation proposée d’un indice de danger pour le Règlement national sur l’eau potable primaire (NPDWR) sur les SPFA
avril 4, 2023
La LCM et la MCLG proposées pour les quatre SPFA, LE PFNA, le PFHxS, le GenX et le PFBS considèrent leur toxicité comme additif. L’EPA a proposé un IH de 1,0 en tant que MCL et MCLG pour les quatre SPFA combinés.
PFAS Groundwater Sampling
mars 28, 2023
Per- and Poly-fluoroalkyl substances are a diverse group of man-made chemicals and are becoming an increasing environmental concern.
Proposed MCLGs and MCLs for PFAS
mars 15, 2023
Final Regulatory Determination for Contaminants on the Fourth Drinking Water Contaminant Candidate List
QA and Chemistry Services
février 23, 2023
TRC offers many QA and Chemistry services including data usability assessments, limited and full data validation reports, quality assurance project plan preparation, selection of appropriate analytical methodologies and laboratory audits.
PFAS Fate and Transport
février 23, 2023
Understanding PFAS properties and behavior is key to effective detection and remediation.
PFAS Fate and Transport: Conceptual Site Models
février 23, 2023
The conceptual site model describes site-specific sources, release and transport mechanisms, exposure media, exposure points, exposure pathways and routes and potential human and/or ecological receptor populations.
PFAS: Data Collection and Analysis Part 2
février 23, 2023
There are many PFAS-related challenges, such as changing regulations, toxicology, fate and transport, analytical methods, remediation, public perception and more.
PFAS: Sampling and Analysis Part 1
février 23, 2023
Sampling and analysis of Per- and poly-fluoroalkyl substances (PFAS) requires specific techniques and analytical tools to ensure data quality.
EPA Announces $2 Billion in Funding to Address Emerging Contaminants in Drinking Water
février 14, 2023
Environmental Protection Agency Administrator Michael Regan announced $2 Billion in infrastructure funding to help the nation’s rural water supplies.
EPA Publishes Effluent Guidelines Program Plan 15
février 14, 2023
The EPA announced updated effluent limitations guidelines under Plan 15, focusing on the evaluation and rulemaking process for per- and polyfluoroalkyl substances (PFAS) discharges.
PFAS: Remedial Approaches
février 8, 2023
Remediating Per- and poly-fluoroalkyl substances (PFAS) from the soil and water requires effective techniques and innovative technologies. TRC’s experts are well versed in several remediation strategies intended to remove PFAS and prevent re-exposure.
PFAS in Air: The Basics
février 8, 2023
Per- and poly-fluoroalkyl substances (PFAS) are a group of synthetic chemicals resistant to heat, water and oil. PFAS are widely detected in air as well as water and soil.
TRI PFAS Reporting Requirements Continue to Expand
janvier 25, 2023
The list of PFAS for TRI reporting has increased to a total of 189 for reporting year 2023.
Emerging Contaminants- Microplastics, HABs and Cannabis
janvier 9, 2023
Microplastics, harmful algal blooms (HABs) and cannabis/hemp can present health and safety concerns.
Chlorinated Solvents 101
janvier 9, 2023
Chlorinated solvents are present in industrial chemicals and can post risks to the environment and human health.
PFAS on the Move: Fate and Transport in Sediment
janvier 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.
Equipment Decontamination and Replacement of Legacy Aqueous Film Forming Foams
Décembre 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.
PFAS Discharges in NPDES Permits
Décembre 19, 2022
In a follow-up to the EPA Office of Water’s April 28, 2022 memo, EPA released “Part 2″, providing guidance for the NPDES permitting/pretreatment program as it relates to restricting discharges of PFAS to water bodies.
PFAS: The Basics
Décembre 14, 2022
Per- and poly-fluoroalkyl substances (PFAS) are a group of synthetic chemicals resistant to heat, water and oil. These persistent chemicals have been found to be ubiquitous toxins in our environment.
Petroleum Hydrocarbons 101
Décembre 14, 2022
This presentation defines petroleum hydrocarbons and covers the range of products and constituents that comprise petroleum hydrocarbons.
Advanced NAPL Site Characterization Tools
Décembre 14, 2022
Advanced NAPL site characterization tools can improve site understanding and remediation performance.
What is TSCA and Why Should I Care?
Décembre 1, 2022
This presentation provides a historical background on TSCA, regulatory requirements, regulated industries and regulated substances.
Washington State Establishes PFAS Cleanup Levels
septembre 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
New National Emerging Contaminants Research Initiative
septembre 12, 2022
The Executive Office of the President of the United States announced a National Emerging Contaminant Research Initiative
EPA Issues Proposed Rule Designating PFOA and PFOS as Hazardous Substances
septembre 7, 2022
The EPA has issued a pre-publication version of a proposed rule to designate two PFAS compounds as hazardous substances under CERCLA.
EPA PFAS Strategic Roadmap: Where Are We?
août 3, 2022
In 2021, the United States Environmental Protection Agency (EPA) announced the Agency’s PFAS Strategic Roadmap.
PFAS Forensics – Identify the Source of PFAS
juillet 8, 2022
Forensics and source identification is necessary to detect the unique PFAS chemical signatures
Five New PFAS Added to EPA Regional Screening Levels (RSLs)
juin 24, 2022
EPA announced the addition of five new PFAS to the list of Regional Screening Levels (RSLs)
EPA Announces Updated Drinking Water Health Advisories for Four PFAS Chemicals: PFOS, PFOA, PFBS, & GenX
juin 24, 2022
On June 15, 2022, the EPA released updated Health Advisory Levels for four per- and polyfluoroalkyl substances (PFAS) in drinking water
Integrating Sustainability, Digital Connectivity and Design Optimization in Wastewater Treatment Systems
juin 20, 2022
Some organizations rarely think about water and wastewater treatment, until there is a problem. American industry depends on the ability to treat wastewater discharges while complying with regulatory standards and addressing emerging contaminants. If wastewater treatment fails, our environment is negatively impacted, and companies are exposed to shutdowns, delays and fines.
Webinar Reply: Minnesota’s PFAS Monitoring Plan
juin 13, 2022
Minnesota’s PFAS Monitoring Plan: Other Test Method (OTM) 45 for Measuring PFAS Air Emissions
Worst Case Discharges of Hazardous Substances – Proposed Rule
mai 25, 2022
In compliance with the Clean Water Act (CWA), the U.S. Environmental Protection Agency (EPA) recently proposed a new rule for onshore non-transportation-related facilities requiring specified facilities to plan for worst case discharges (WCDs) of CWA hazardous substances that could cause substantial harm to the environment.
PFAS Discharges and NPDES Permits
mai 25, 2022
On April 28, 2022, the U.S. Environmental Protection Agency’s (EPA) Office of Water released a memo addressing the use of National Pollutant Discharge Elimination System (NPDES) permits to restrict per- and poly-fluoroalkyl substances (PFAS) discharges to water bodies.
EPA Proposes Aquatic Life Criteria for PFOA and PFOS
mai 25, 2022
On May 3, 2022, under the Clean Water Act (CWA), the United States Environmental Protection Agency (USEPA) proposed the first aquatic life criteria for both short-term and long-term toxic effects from Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonic Acid (PFOS).
SEC Releases New Proposed Rules Requiring Public Companies to Disclose Climate Risks
avril 12, 2022
On March 21, 2022, the U.S. Securities and Exchange Commission (SEC) issued its proposed rules for The Enhancement and Standardization of Climate-Related Disclosures for Investors which would require public companies in the U.S. to disclose information in their annual financial reports.
Per‐ and Polyfluoroalkyl Substances in Environmental Sampling Products: Fact or Fiction?
mars 29, 2022
Can per‐ and polyfluoroalkyl substances (PFAS) be transferred from the common field and other commercial products during sampling?
Evaluation of the Effects of PFAS Soil Adsorption and Transformation
mars 29, 2022
A study to to evaluate the effect of divalent cations on the adsorption of per- and polyfluoroalkyl substances (PFAS) onto soil particles.
PFAS Experts Symposium 2: An Update on Advances in Chemical Analysis of PFAS
mars 23, 2022
A recap of how the analysis of per‐ and polyfluoroalkyl substances (PFAS) has evolved since the first PFAS Experts Symposium in 2019.
PFAS Experts Symposium: Regulations and Technologies
mars 23, 2022
The scientific, engineering, regulatory, and legal communities assembled for the PFAS Experts Symposium in Arlington, Virginia to discuss issues related to per‐ and polyfluoroalkyl substances (PFAS).
Draft Environmental Protection Agency (EPA) Method 1633: A Data User’s Perspective
mars 15, 2022
A review of Draft EPA Method 1633, Analysis of Per‐and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC‐MS/MS
PFOA & PFOS As CERCLA Hazardous Substances: What Does This Mean and How Can You Be Prepared?
février 17, 2022
A plan to designate two per- and polyfluoroalkyl substances (PFAS) as “hazardous substances” under CERCLA was recently submitted by the EPA.
New Phase I ESA Standard Will Affect Environmental Due Diligence
janvier 25, 2022
After years of review, revisions and discussions, the new ASTM E1527 Phase I Environmental Site Assessment (Phase I ESA) standard has been published. The new standard includes updates to definitions, clarifications on processes and requirements, and guidance for emerging contaminants.
Fifth Unregulated Contaminant Monitoring Rule Lists 29 PFAS
janvier 21, 2022
EPA published fifth Unregulated Contaminant Monitoring Rule as required every five years and 29 of the 30 contaminants listed are PFAS.
Need help collecting PFAS samples for NJDEP deadline December 15?
octobre 7, 2021
NJDES Category B or L Industrial Permit holders – If you haven’t obtained your first PFAS sample yet, time is running out. All New Jersey Pollutant Discharge Elimination System (NJDES) Category B or L Industrial Permit holders are required by the New Jersey Department of Environmental Projection (NJDEP) to collect two representative effluent samples, taken 30 days apart, to be analyzed for PFAS by an approved laboratory and submitted to them by December 15, 2021.
Interpretation of “Waters of the United States” (WOTUS) Reverts to Pre-2015 Regulatory Definition
septembre 29, 2021
Environmental Protection Agency (EPA) and U.S. Army Corps of Engineers (ACOE) revert to pre-2015 regulatory program definition of “Waters of the United States.”
EPA Solicits Comments on PFAS Discharges in Five Point Source Categories
septembre 23, 2021
EPA solicits comments in five point source categories (PSCs) in the manufacture, use, treatment and discharge of PFAS.
PFAS Air Emissions Standards and Trends for Summer 2021
août 17, 2021
Environmental impacts of PFAS in ambient air leads to states implementing PFAS air-related thresholds.
Cryptocurrency: The Environmental Threats and Opportunities
août 9, 2021
Cryptocurrency (also known as crypto) is taking the fintech industry by storm, despite the economic experts who still dismiss it as a viable form of currency. Although often criticized for this volatility, whistleblowers are also further shining a light on the severe toll that these digital currencies are taking on the environment.
TRC Colorado PFAS Regulatory Update
juillet 21, 2021
Update on Colorado’s recent policies and plans to regulate new and historical discharges of per- and polyfluoroalkyl substances (PFAS) into the environment.
2021 EPA TRI Reporting Requirements for Natural Gas Processing Facilities
juillet 12, 2021
Indication EPA finalizing a rule to add natural gas extraction or processing plants to EPCRA Toxics Release Inventory (TRI) reporting.
Implementing bioremediation at environmental cleanup sites: TRC experts weigh in at leading industry conference
mai 17, 2021
TRC experts make several presentations at the Battelle conference about innovative approaches they have developed for implementing and monitoring bioremediation and the use of naturally-occurring or deliberately-introduced micro-organisms to break down environmental pollutants.
PFAS Compounds & Toxics Release Inventory
avril 26, 2021
The National Defense Authorization Act of 2020 added 172 PFAS compounds to the list of chemicals that must be evaluated for reporting.
PFAS Sampling Advisory on Aqueous Samples
avril 1, 2021
Advisory on collecting aqueous samples (e.g., groundwater, wastewater, stormwater, etc.) for PFAS analysis.
Interim Guidance on Destruction and Disposal of PFAS & Materials Containing PFAS
février 19, 2021
Interim Guidance from EPA identifies 6 materials that use or manufacture PFAS and approaches for disposal.
EPA Issues PFAS Air Emissions Draft Test Method OTM-45
février 5, 2021
First Air Emissions Draft Test for the Measurement of Selected Per- and Polyfluorinated Alkyl Substances from Stationary Sources
Microplastics Fate and Transport
janvier 31, 2021
This presentation discusses the fate and transport of microplastics and provides case studies of microplastic sampling projects.
EPA continues to aggressively address PFAS wastewater with two new strategies
janvier 4, 2021
EPA takes steps toward PFAS wastewater and storm water permitting, and analytical methods for testing.
PFAS at Metal-Plating Facilities: Environmental Management and Regulatory Developments
novembre 13, 2020
TRC is a national leader in per- and poly-fluoroalkyl substances (PFAS) characterization, research and technical consulting.
TRC Companies Inc. Acquires 1Source Safety and Health
novembre 11, 2020
TRC Companies (« TRC”), a leading technology-driven provider of end-to-end engineering, consulting and construction management solutions, has acquired 1Source Safety and Health, a firm that provides management consulting services in areas such as indoor air quality, asbestos management, industrial hygiene and safety management systems.
Ecological Risk of PFAS from AFFF-Impacted Sites
juin 30, 2020
The facts on evaluating exposure to wildlife
TRC’s Reporting Tool Can Help Identify New PFAS under the TRI
mai 19, 2020
While utilities often work in technical silos, NERC auditors are trained to cross check compliance evidence and data between interrelated standards.
World Health Organization Examines Danger of Microplastics in Drinking Water
novembre 5, 2019
There’s growing concern that microscopic plastic particles could be having a detrimental effect on drinking water quality.
Michigan Steps Up Fight Against PFAS Contamination
mai 8, 2018
Michigan is cracking down on PFAS contamination with a pair of new regulatory actions aimed at protecting the state’s water supply.
Environmental Impacts of Tire Wear: The Issue of 6PPD-Q
octobre 3, 2023
The best management practices for preventing 6PPD-Q from entering nearby streams include street sweeping, flow control through mitigation techniques and treatment.
Le rapport 2023 sur le taux d’eau et d’eaux usées en Virginie est maintenant disponible
juillet 24, 2023
La réussite d’une évaluation technique de l’impraticabilité est la collecte de données solides, la documentation et la communication efficace des conditions du site et du potentiel de restauration des eaux souterraines.
EPA Issues Clarification of Free Product Removal Requirements
juin 20, 2023
EPA recently clarified requirements for LNAPL recovery and remediation.
Microplastics ITRC Guidance Document and Training Available Soon!
février 23, 2023
Microplastic particles have been found in nearly every corner of the globe, but health effects and toxicity are only beginning to be understood. Because of their ubiquitous nature, microplastics present a challenge in both accurate sampling and source attribution. Microplastics are emerging as an environmental issue that regulators and industry will be increasingly focusing on in the coming years.
Vapor Intrusion Assessment and Mitigation Case Study
février 23, 2023
Keys to a successful technical impracticability evaluation are sound data collection, documentation and effective communication of site conditions and groundwater restoration potential.
QA and Chemistry Services
février 23, 2023
TRC offers many QA and Chemistry services including data usability assessments, limited and full data validation reports, quality assurance project plan preparation, selection of appropriate analytical methodologies and laboratory audits.
Odor Evaluation Services
février 23, 2023
TRC is nationally recognized as an expert in the field of odor measurement, identification, modeling and control engineering. This presentation includes an overview of odor properties, odor evaluation, modeling and odor thresholds and outlines the four sensory properties: detectability, intensity, character and hedonic tone.
PFAS Fate and Transport
février 23, 2023
Understanding PFAS properties and behavior is key to effective detection and remediation.
PFAS Fate and Transport: Conceptual Site Models
février 23, 2023
The conceptual site model describes site-specific sources, release and transport mechanisms, exposure media, exposure points, exposure pathways and routes and potential human and/or ecological receptor populations.
PFAS: Data Collection and Analysis Part 2
février 23, 2023
There are many PFAS-related challenges, such as changing regulations, toxicology, fate and transport, analytical methods, remediation, public perception and more.
PFAS: Sampling and Analysis Part 1
février 23, 2023
Sampling and analysis of Per- and poly-fluoroalkyl substances (PFAS) requires specific techniques and analytical tools to ensure data quality.
EPA Announces $2 Billion in Funding to Address Emerging Contaminants in Drinking Water
février 14, 2023
Environmental Protection Agency Administrator Michael Regan announced $2 Billion in infrastructure funding to help the nation’s rural water supplies.
PFAS: Remedial Approaches
février 8, 2023
Remediating Per- and poly-fluoroalkyl substances (PFAS) from the soil and water requires effective techniques and innovative technologies. TRC’s experts are well versed in several remediation strategies intended to remove PFAS and prevent re-exposure.
PFAS in Air: The Basics
février 8, 2023
Per- and poly-fluoroalkyl substances (PFAS) are a group of synthetic chemicals resistant to heat, water and oil. PFAS are widely detected in air as well as water and soil.
Metals 101
février 8, 2023
Metals are naturally occurring elements in the Earth’s crust that enter the environment through natural processes. They can be found in groundwater, soil and sediment. The trophic transfer of these elements in aquatic and terrestrial food chains has important implications for wildlife and human health.
Risk Communication Challenges for Emerging Issues
février 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.
Green and Sustainable Remediation
janvier 9, 2023
Green and sustainable remediation (GSR) can optimize remedial activities, minimize environmental footprints and reduce social and economic impacts.
Emerging Contaminants- Microplastics, HABs and Cannabis
janvier 9, 2023
Microplastics, harmful algal blooms (HABs) and cannabis/hemp can present health and safety concerns.
Chlorinated Solvents 101
janvier 9, 2023
Chlorinated solvents are present in industrial chemicals and can post risks to the environment and human health.
Equipment Decontamination and Replacement of Legacy Aqueous Film Forming Foams
Décembre 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.
PFAS: The Basics
Décembre 14, 2022
Per- and poly-fluoroalkyl substances (PFAS) are a group of synthetic chemicals resistant to heat, water and oil. These persistent chemicals have been found to be ubiquitous toxins in our environment.
Petroleum Hydrocarbons 101
Décembre 14, 2022
This presentation defines petroleum hydrocarbons and covers the range of products and constituents that comprise petroleum hydrocarbons.
Advanced NAPL Site Characterization Tools
Décembre 14, 2022
Advanced NAPL site characterization tools can improve site understanding and remediation performance.
New National Emerging Contaminants Research Initiative
septembre 12, 2022
The Executive Office of the President of the United States announced a National Emerging Contaminant Research Initiative
Webinar Reply: Minnesota’s PFAS Monitoring Plan
juin 13, 2022
Minnesota’s PFAS Monitoring Plan: Other Test Method (OTM) 45 for Measuring PFAS Air Emissions
PFAS Experts Symposium 2: An Update on Advances in Chemical Analysis of PFAS
mars 23, 2022
A recap of how the analysis of per‐ and polyfluoroalkyl substances (PFAS) has evolved since the first PFAS Experts Symposium in 2019.
The Best Process for Transforming Thermal Generation Power Plants
février 9, 2022
Faced with an aging fleet, stricter environmental regulations, reduced costs for natural gas and competition from renewables, more than 600 power plants have been decommissioned in the last 20 years, a pace that will increase with the announced closure of nearly 350 additional plants by 2025.
Blast from the Past: How TRC Helped a Small UK Village Remove WWII Grenades and Mines from Playground
Décembre 11, 2021
When an straightforward remediation project came to a screeching halt after work crews unearthed live grenades, officials in Weedon Bec turned to TRC.
TRC Colorado PFAS Regulatory Update
juillet 21, 2021
Update on Colorado’s recent policies and plans to regulate new and historical discharges of per- and polyfluoroalkyl substances (PFAS) into the environment.
Implementing bioremediation at environmental cleanup sites: TRC experts weigh in at leading industry conference
mai 17, 2021
TRC experts make several presentations at the Battelle conference about innovative approaches they have developed for implementing and monitoring bioremediation and the use of naturally-occurring or deliberately-introduced micro-organisms to break down environmental pollutants.
TRC to Oversee $104 Million Demolition Project at Los Angeles’ Haynes Generating Station
avril 24, 2021
TRC to dismantle and remove four decommissioned generating units in Long Beach, Calif., to pave way for LADWP’s clean grid initiatives.
Breakthrough Solutions for Coal Combustion Residuals Compliance
septembre 3, 2020
TRC is your trusted partner, helping to navigate the economic, environmental and regulatory pressures as well as the rapid technological advancements impacting successful coal ash management.
Ecological Risk of PFAS from AFFF-Impacted Sites
juin 30, 2020
The facts on evaluating exposure to wildlife
TRC Brings Environmental Services to Manchester with Second UK Office
mars 5, 2020
In continuing to expand our presence in a key British market, TRC is opening our second UK office in Manchester, England
TRC and Environmental Partners, Inc. (EPI) have entered into definitive agreement for the sale of EPI’s business
novembre 25, 2019
TRC and Environmental Partners, Inc. (EPI) have entered into definitive agreement for the sale of EPI’s business
World Health Organization Examines Danger of Microplastics in Drinking Water
novembre 5, 2019
There’s growing concern that microscopic plastic particles could be having a detrimental effect on drinking water quality.
Why Coal Ash Impoundments and Landfills Make Great Solar Sites
septembre 25, 2019
Hundreds of coal ash sites are set to close over the next decade and could make ideal, low-impact locations for utility-scale solar farms.
TRC Remediation Project at Roche Nutley Site in New Jersey Wins National Grand Prize for Sustainability
mai 7, 2019
TRC was awarded the 2019 Grand Prize for Environmental Sustainability by the American Academy of Environmental Engineers & Scientists for the cleanup of the former Roche site in Nutley, N.J.
Groundwater Recharge: How It Affects Your Decisions
mai 30, 2018
Often misunderstood, groundwater recharge rate is an important consideration when assessing groundwater supply or aquifer vulnerability.
TRC Acquires Hazmat Assessment Firm American Environmental Consulting
janvier 3, 2018
TRC, a leader in engineering, environmental consulting and construction-management services, announced today that it has acquired American Environmental Consultants, Inc. of Weymouth, Mass., a hazardous materials assessment company.
EPA to Include CERCLA Sites and RCRA Facilities in Site Remediation NESHAP
juin 23, 2016
EPA has published a proposed rule that would extend the requirements of the Site Remediation National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations to previously exempt soil and groundwater remediation activities under CERCLA and RCRA.
Successful Coal Ash Pond Management
juillet 10, 2014
Regulatory requirements, plant retirements, changes to facility operational profiles, environmental liability management and political and social pressures are among the factors driving utilities to close or consider closing their coal ash ponds.
Victoria Mann
Victor an Environmental Engineer and is TRC’s Technical Director for Water and Wastewater. Victor has 30 years of experience in remediation, water and wastewater treatment. Medina has a M.S. and Ph.D. in Civil/Environmental Engineering from the University of Southern California and is currently based in Jackson, Mississippi. Victor has five patents for innovative environmental technologies and specializes in developing effective solutions to challenging environmental problems. Contact Victor at vmedina@trccompanies.com.
Michael Eberle
Michael Eberle is a Technical Director within TRC in Philadelphia, Pennsylvania. Mr. Eberle is also a member of TRC’s Centers of Research & Expertise (CORE) for in‐situ remediation and treatment train optimization. Mr. Eberle has over 30 years of environmental consulting experience, including over 27 years of experience designing, troubleshooting, and managing the operation of multiphase hydrocarbon product extraction, bioventing, and in‐situ/ex-situ groundwater remediation systems. Additionally, Mr. Eberle is tasked with lending his chemistry background to understanding, characterizing, and tracking emerging chemicals under regulatory scrutiny.