Join SCSers John Tabella, PG, and Kerim Temel, PE, in attending the VWEA 2025 Industrial Waste & Pretreatment Conference on March 3-4 in Harrisonburg, Virginia. Hosted by the Virginia Water Environment Association, this event discusses the latest in Industrial Waste in the Commonwealth. With the theme, “Back to the Source”, the program boasts workshops and seminars that explore topics such as Brewery Wastewater, PFAS Regulatory Updates, A Sewer Lawyer’s Perspective on Pretreatment Basics, and more. Register now!
The Association for Environmental Health and Soils (AEHS) is hosting the 40th Annual International (East Coast) Conference on Soils, Sediments, Water, and Energy in Amherst, Massachusetts from October 21 to 24, 2024. This AEHS conference integrates a variety of topics for the environmental science community and regulators. It offers an opportunity to stay updated on recent techniques and technologies for addressing environmental issues and solutions. SCS Engineers technical advisors and environmental professionals are attending the 2024 AEHS conference and are available to answer and discuss solutions for the covered topics.
PFAS
Per- and polyfluoroalkyl substances, called PFAS, is a major topic covered during the sessions. Three workshops and several presentation sessions are addressing various aspects of PFAS challenges. Sessions will cover an overview of methods and materials for field sampling activities and published sampling protocols, guidance, and procedures. They will also address various analytical methods for evaluating PFAS in drinking water, wastewater, solids, and biosolids, as well as the best practices for field collection and the available analytical methods and their applicability.
PFAS Treatment
Another significant topic will be PFAS treatment and remediation. One session covers an innovative approach combining foam fractionation with supercritical water oxidation to eliminate PFAS from various waste streams. Destructive technologies, including electrical discharge plasma treatment, thermal destruction, enhanced oxidation, and sonolysis, have shifted from the laboratory bench to the field. Therefore, one of the presentations will cover the various mechanisms used to destroy PFAS, compare early performance data to determine effectiveness and highlight successes and obstacles that may occur as these technologies move from pilot scale to full-scale implementation.
Metals Remediation and VOCs
Other topics include metals remediation, such as an in-situ chemical fixation process that co-precipitates arsenic via the formation of an iron-arsenic oxyhydroxide complex, and the remediation of lithium, molybdenum, boron, and arsenic at coal combustion residual sites. The investigation and remediation of chlorinated volatile organic compounds (cVOCs) will also be discussed in various sessions, covering the use of real-time 3-dimensional data visualization and analysis during a high-resolution site characterization, investigation using the membrane interface hydraulic profiling tool for the delineation of cVOCs and remediation using emulsified zero-valent iron for direct source mass destruction.
Regulations and Adapting Technologies for Emerging Contaminants
Other topics include bioremediation, vapor intrusion, statistics, sustainable remediation tools, climate change and resiliency, managing environmental data, in-situ remediation, and environmental security. The event dedicates one session to emerging environmental contaminants in drinking water, such as microplastics, nanomaterials, and PFAS. This session will also discuss the current status of United States regulations and provide a forecast of the potential trajectory of regulations and the corresponding legal landscape over the next one to two years.
AEHS also organizes a similar West Coast conference. The West Coast 34th Annual International Conference on Soil, Water, Energy, and Air Conference will be held March 17-20, 2025, in San Diego, California.
Additional Resources:
Join SCS Engineers at the 2024 Illinois Manufacturers’ Association Environment & Energy Conference. The event will be held October 22 at the Tinley Park Convention Center in Tinley Park, IL. This event is great for Illinois manufacturers to gain critical insights from state environmental and energy experts. Designed for CEOs, plant managers, safety officers, legal teams, and environmental professionals, this one-day program will delve into compliance, regulations, permitting, sustainability, and future legislative developments. Attendees will hear directly from state officials, regulators, and industry leaders on the most pressing environmental and energy-related issues.
As a proud Lunch Sponsor, SCS Engineers invites you to visit our booth to discuss your environmental compliance challenges and explore solutions tailored to your upcoming needs. Don’t miss this opportunity to connect with our experts on site! Register today.
Join SCS Engineers at the 2024 SWANA North Carolina Chapter Fall Conference in Wilmington, North Carolina. The agenda for this event is robust with programming including a tour of the new Hanover Landfill, sessions on a range of the most prevalent topics in solid waste, young professional events, Garby award presentations, and ample networking opportunities. Seize this opportunity to spend a week with your fellow SWANA colleagues to increase your understanding of the industry and stay informed on the latest developments.
Act now and take advantage of early registration discounts and room blocks. Register for the NC SWANA 2024 Fall Conference today!
Join SCS at the 24th Annual Joint Fall Conference, September 4th – 5th, hosted by the Pennsylvania Waste Industries Association (PWIA) and the SWANA Keystone Chapter at the Hilton Harrisburg in Harrisburg, Pennsylvania. Billed as Pennsylvania’s premier solid waste management event, this year’s conference features a welcome reception, program, and trade show. The technical program includes live learning and networking opportunities for industry professionals, and engaging topics on emerging technologies, PFAS, and financial considerations for energy projects.
SCS Experts are excited to present on the following topics this year.
LFG Recovery Forecasting Uncertainty on the Effects of Organics Diversion Presenter: Christopher Woloszyn, Senior Project Professional.
Drones, Lasers and Satellites, Oh My! Remote Methane Monitoring Techniques and Landfill Air Regulatory Update Presented by: Josh Roth and David Hostetter.
SCS is proud to be a sponsor and exhibitor for this exciting event, bringing together leaders and organizations across the solid waste industry.
The 32nd Fall Conference, October 23-25 is an opportunity to hear from leading practitioners and to learn about the challenges and opportunities shaping environment, energy, and resources law. During the conference, you will be able to leverage professional development opportunities, connect with industry experts such as SCS Engineers, and stay informed about the latest trends.
The conference features engaging discussions with leaders in environmental, energy, and resources law, including state and federal regulators, leading scholars, and in-house counsel. Each day will kick off with a plenary session, such as exploring the emergence of AI and its implications for environment, energy, and resources law, and the impact of recent Supreme Court decisions.
The conference agenda is diverse, providing updates on the Clean Water Act and Clean Air Act. A hypothetical industrial accident will focus on managing key roles in responding to the accident. Attendees will gain an understanding from energy practitioners as they delve into environmental justice considerations and the permitting process for energy and environmental projects and the strategic siting of renewable energy projects. Climate change remains a pressing concern, and panel discussions will explore recent climate litigation and the ramifications of climate change on water availability. Hear from panelists as they address Tribal considerations in the areas of treaty rights and co-management of state and federal lands and natural resources. Additional topics to be examined include dam removal developments, contaminated waterways cleanups, the impacts of regulatory requirements on supply chain logistics, the emergence of contaminants such as microplastics and 6PPD, and the evolving landscape of Environmental, Social, and Governance (ESG) and climate disclosure practices.
Experience firsthand this enriching event, where you’ll gain insights from top practitioners, build valuable connections, and be inspired by peers in the environmental, energy, and resources law community. We’ll see you in Seattle!
SCS Engineers’ professional staff, located according to their knowledge of regional and local geography, regulatory policies, and industrial or scientific specialty, are available nationwide. SCS professionals are technical experts and have been admitted as expert witnesses and supported legal counsel in a variety of environmental and regulatory litigation matters. We are always available to discuss:
SCS Engineers is again hosting our popular half-day Solid Waste Seminar in Harrisburg, Pennsylvania on June 5. Lunch is included.
This annual seminar covers the latest regulatory, policy, and technology developments in solid waste, landfill, landfill gas, and sustainable materials management. It is designed for solid waste management professionals, landfill managers, waste/recycling managers, supervisors, and operators.
This year’s presentations will be
Please see the flyer for registration information. We hope to see you there!
Join SCS Engineers at the SWANA SC Spring Conference, hosted at the Hilton DoubleTree in Myrtle Beach, South Carolina. SCS’s own J Morgan, PE, SWANA SC Palmetto Chapter President, and the planning committee prepared an engaging agenda of technical sessions, including PFAS analytical methods, landfills and earthquakes, and environmental justice. Attendees will enjoy the annual spring golf outing, held at the Aero Club Short Course, and fun networking opportunities during Casino Night.
SCS experts are expected to present this year, with more details to come!
Registration is open to SWANA Members and non-members. Register today!
In response to its PFAS Strategic Roadmap, the Environmental Protection Agency (EPA) initiated two regulatory actions under the Resource Conservation and Recovery Act (RCRA) to tackle PFAS pollution. Once implemented, these measures will empower federal and state agencies with advanced tools for PFAS remediation.
The initial proposed regulation intends to designate specific PFAS as “hazardous constituents” within RCRA’s framework, making them subject to detailed scrutiny and cleanup actions at sites handling hazardous waste.
The second proposed rule aims to affirm that new contaminants, including certain PFAS that are not currently classified as “hazardous wastes” yet align with the definition of “hazardous waste” in RCRA section 1004(5), should be managed equivalently to traditional hazardous wastes in the context of corrective actions. Listing these PFAS as RCRA hazardous constituents does not make them, or the wastes containing them, RCRA hazardous wastes.
On February 8, 2024, the EPA proposed to add nine PFAS compounds to the list of “hazardous constituents” to be considered “in RCRA facility assessments and, where necessary, further investigation and cleanup through the RCRA corrective action process.” Appendix VIII to Part 261 – Hazardous Constituents shown at right.
If finalized, this hazardous constituent listing would form part of the basis for any future action the EPA may take to list these substances as hazardous waste.
EPA’s criteria for listing substances as hazardous constituents under RCRA require that they have been shown in scientific studies to have toxic, carcinogenic, mutagenic, or teratogenic effects on humans or other life forms.
Entities potentially affected by the proposed rule include hazardous waste treatment, storage, and disposal facilities (TSDFs) with solid waste management units (SWMUs) that have released or could release any of the PFAS proposed to be listed as RCRA hazardous constituents. EPA has identified 1,740 such facilities, which could be subject to additional corrective action requirements. “Waste Management and Remediation Services” had the highest number of facilities (359) with a high likelihood of handling PFAS.
The primary goal of the suggested amendment is to update 40 CFR 264.101 so that it accurately mirrors the requirements for corrective action cleanups at hazardous waste Treatment, Storage, and Disposal Facilities (TSDFs) as specified by RCRA sections 3004(u) and (v). The modifications are designed to clarify that the management of hazardous waste releases, including those not categorized as hazardous under current regulations but fitting the broader definition in RCRA section 1004(5), should adhere to the established protocols for hazardous waste under the corrective action program. Focusing on Per- and Polyfluoroalkyl Substances (PFAS), this regulatory action is a crucial part of the EPA’s PFAS Strategic Roadmap.
Should this proposed regulation be adopted, it would mean that PFAS would be specifically included as hazardous constituents to be considered during facility assessments and, where necessary, further investigation and cleanup under the RCRA corrective action process at hazardous waste TSDFs.
The proposed regulation states that “solid waste disposal facilities, such as those for municipal waste or construction and demolition debris, would not be subject to RCRA corrective action requirements unless they also function as hazardous waste TSDFs.”
Subtitle D of RCRA covers non-hazardous solid waste management, including municipal solid waste landfills, which are subject to different regulations than hazardous waste facilities (regulated under Subtitle C).
Although the recent proposal by the EPA to revise RCRA does not aim at mandating corrective actions at municipal solid waste (MSW) landfills, it sets the stage for probable future amendments under Subtitle C that might classify certain PFAS-containing waste streams, currently considered non-hazardous, as hazardous waste (e.g., listed or characteristic wastes).
While it is premature to predict the impact of future hazardous waste regulations on MSW landfills, it is appropriate to begin collecting information on PFAS waste and assessing potential effects now. Landfills that have implemented special waste review programs (for example, for non-hazardous industrial wastes like wastewater treatment sludge) are advised to expand their waste characterization efforts within these programs to include requests for data on the presence and concentration of the nine PFAS constituents highlighted in the proposed RCRA rule. Additionally, landfills without such review programs are encouraged to consider establishing them.
Additional Resources/Legislation:
About the Authors: Connect with our authors and experts at
Jeff Marshall, PE, is a Vice President of SCS Engineers, Environmental Services Practice Leader for SCS offices in the Mid-Atlantic region, and our National Expert on Emerging Contaminants and Innovative Technologies. His four decades of experience include a diversified project engineering and management background, emphasizing environmental chemistry, hazardous materials, waste, and human health risk issues. Focus areas include environmental permitting, regulatory compliance, and hazardous materials treatment and remediation. He is a licensed professional engineer in Virginia, Maryland, West Virginia, North Carolina, and South Carolina.
Proposed PFAS Hazardous Constituents Under RCRA
The Environmental Protection Agency (EPA) is proposing to amend its regulation under the Resource Conservation and Recovery Act (RCRA) by adding nine specific per-and polyfluoroalkyl substances (PFAS), their salts, and their structural isomers to its list of hazardous constituents. EPA’s criteria for listing substances as hazardous constituents under RCRA require that they have been shown in scientific studies to have toxic, carcinogenic, mutagenic, or teratogenic effects on humans or other life forms.
Entities potentially affected by this action include hazardous waste treatment, storage, and disposal facilities (TSDFs) with solid waste management units (SWMUs) that have released or could release any of the PFAS proposed to be listed as RCRA hazardous constituents. EPA has identified 1,740 such facilities, which could be subject to additional corrective action requirements (under RCRA section 3004(u) and (v)) to address releases not already subject to corrective action under EPA’s corrective action regulations.
The nine PFAS and common uses are as follows:
EPA will collect comments on this PFAS to RCRA’s hazardous constituents proposal for 60 days once published in the Federal Register. Read a prepublication copy of this proposal.
Submit your comments on the Federal eRulemaking Portal: https://www.regulations.gov and identified by Docket ID No. EPA-HQ-OLEM-2023-0278.
As a result of this proposed rule, if finalized, when imposing corrective action requirements at a facility, these PFAS would be among the hazardous constituents expressly identified for consideration in RCRA facility assessments and, where necessary, further investigation and cleanup through the RCRA corrective action process at RCRA treatment, storage, and disposal facilities. Contact SCS Engineers for guidance about your facility at .
Additional Resources:
For additional information regarding EPA’s proposed RCRA PFAS rules, see:
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