
Complementing the Interstate Technology and Regulatory Council’s – ITRC, PFAS Technical and Regulatory Guidance, the website now has ITRC Per- and Polyfluoroalkyl Substances – PFAS, and Risk Communication Fact Sheets available. The site and updated content replace older fact sheets with more detailed information and useful for those who wish to understand the discovery and manufacturing of PFAS, information about emerging health and environmental concerns, and PFAS releases to the environment with naming conventions and federal and state regulatory programs.
SCS Engineers’ professionals recommend further reading to understand specific chemicals or subgroups of chemicals under study to comprehend PFAA behavior in the environment. There are appropriate tools to develop a site-specific sampling and analysis program and considerations for site characterizations following a PFAS release.
We combine ITRC resources and our own to compile an updated library that we hope you find helpful. You can always contact one of our local Liquids Management or Landfill professionals too.
PFAS Behavior in the Environment
PFAS Concerns
PFAS Evaluations
PFAS Remediation
The Interstate Technology and Regulatory Council (ITRC) is a state-led coalition working to reduce barriers to the use of innovative air, water, waste, and remediation environmental technologies and processes. ITRC documents and training can support quality regulatory decision making while protecting human health and the environment. ITRC has public and private sector members from all 50 states and the District of Columbia and is a program of the Environmental Research Institute of the States (ERIS), a 501(c)(3) organization incorporated in the District of Columbia and managed by the Environmental Council of the States (ECOS).
ITRC Goals
SCS Engineers
The International Solid Waste Association – ISWA, published a comprehensive report completed by SCS Engineers for ISWA under the Climate and Clean Air – CCAC, on reducing Short-Lived Climate Pollutants. A CCAC Solid Waste Emissions Estimation Tool – called SWEET, was used to investigate waste sector emissions of short-lived climate pollutants -termed SLCPs, and other greenhouse gases – GHGs.
Data was collected where multiple waste management scenarios in Tyre Caza, Lebanon. Publications on waste management in Lebanon, including an Integrated Waste Management Plan and Updated Master Plan for the closure and rehabilitation of uncontrolled dumpsites throughout Lebanon, provided data that were used in this study along with updated information provided by Lebanon’s Office of the Minister of State for Administrative Reform.
Different management options for reducing emissions of SLCPs over the short- and medium-term. Comparing emissions reductions achieved by implementing a range of programs over a meaningful time horizon provide greater clarity of vision to see which strategies produce the most climate benefits and are worth a high level of effort and the commitment of resources to achieve.
SWEET is designed to be used by solid waste planning professionals worldwide. It allows some degree of flexibility in selecting key inputs, which gives it greater control and ability to reflect local conditions but adds a level of complexity that may be difficult for some users to navigate. While offering users control of some model assumptions, SWEET includes many calculations and assumptions that are necessarily fixed and can produce unintended results given the model’s limitations. In addition, the assignment of input data that appropriately reflects actual and expected conditions can be challenging, especially when there is a large amount of information to be considered.
The reports on solid waste management in Lebanon and Tyre Caza following the waste management crisis provided multiple sources of data that required evaluation and processing before being used in SWEET.
Click here to read, share, and download the report, ESTIMATION OF WASTE SECTOR GREENHOUSE GAS EMISSIONS IN TYRE CAZA, LEBANON, USING THE SOLID WASTE EMISSIONS ESTIMATION TOOL (SWEET)
ISWA and CCAC will be sponsoring a training workshop on the use of SWEET in the future. For advice and guidance using SWEET contact Alex Stege, SCS Engineers Senior Project Advisor, and Expert on Landfill Gas Modeling.
SCS Engineers, in partnership with the Wisconsin Department of Natural Resources – WDNR, is performing a waste sort to determine what’s in the trash going into Wisconsin’s landfills. During the waste audit, SCS will collect at least 200 samples of waste from 12 waste disposal sites across the state for eight weeks.
Solid waste, recycling, and diversion planners need to differentiate between the composition and sources of waste to appropriately manage recycling and diversion programs. These programs help citizens and businesses make the most out of their waste material and help control the cost of waste management.
Waste diversion can positively impact communities’ environmental health, reduce the potential for soil and water contamination, and conserve resources while reducing landfill operation costs. Municipal solid waste, called MSW, typically contains valuable materials. The cost of manufacturing using virgin materials increases, but technology creates new avenues for reusing materials formerly thrown away. The pandemic has influenced what we are consuming and where we dispose of wastes, from home or the office, influencing materials markets.
WDNR uses the waste audit data to evaluate current waste diversion programs’ effectiveness to identify and quantify additional materials that Wisconsin could divert from its landfills and serve as a baseline to measure future efforts. By comparing the new data to a previous waste composition study, WDNR can measure the impact of existing recycling and hazardous waste management programs. The comparison further helps identify waste generation trends and how the waste stream is changing.
The waste characterization study separately analyzes the waste stream generated from various sources, including residential, industrial/commercial/institutional, construction & demolition. For solid waste, recycling and diversion planners, it is vital to differentiate waste sources to target programs properly.
All of this helps make recycling more effective and identifies ways to reduce and reuse a large percentage of what is landfilled.
Many items we throw away have continued value. Cell phones and electronics contain valuable materials, like gold, for example. Cardboard is exceptionally valuable now, as citizens and businesses are taking more deliveries at home. Organics such as food and yard waste can turn into compost. Aluminum and steel cans can be recycled over and over again to make new cans. According to the Aluminum Association’s Can Committee, making a new can from recycled aluminum takes 95% less energy and releases 95% fewer greenhouse gases than creating the same can without recycled material.


Industrial stormwater discharge regulatory compliance defined by the National Pollutant Discharge Elimination System – NPDES, and the Federal Multi-Sector General Permit – MSGP, slated for implementation in January 2021, will affect state Industrial General Permits. In the states where the EPA is the regulating body (New Mexico, New Hampshire, and West Virginia), the impact will be immediate.
California on the Rise, by Jonathan Meronek and Alissa Barrow, discusses the emerging general commonalties of “lessons learned” that can help dischargers successfully manage their stormwater programs.
Jonathan and Alissa explain best practices that help businesses understand and prepare ahead of the expected changes. The strategies can streamline preparation and response to minimize risk and help prevent fines and lawsuits.
About the Authors: Jonathan Meronek is a State of California IGP Qualified Industrial Stormwater Practitioner – QISP. With SCS Engineers for over 17 years, he leads Stormwater Management in the Southwest U.S. Alissa Barrow has 10 years of experience as an environmental professional specializing in environmental assessment, remediation, and compliance. Find a stormwater professional near you.
Learn more:
President, Michele Nestor
Vice President, Denise Wessels
Secretary, Tom Lock
Treasurer, Matthew Foltz
Private Sector Directors: Jill Hamill, Carolyn Witwer
Public Sector Directors: Scott McGrath and Scot Sample
Young Professionals Director: Brandon Comer
Chapter International Board Member: Robert Watts
The Solid Waste Association of North America – SWANA organization is comprised of public and private sector professionals committed to advancing solid waste management, safety, and resource management through their shared emphasis on education, advocacy, and research. Keystone SWANA serves industry professionals through technical conferences, certifications, publications, and a large offering of technical training courses which in turn keep our communities and environmental resources healthier.
The Los Angeles County Board of Supervisors designated Alpine Village in Torrance, a Historic Landmark. The parking lot is a former landfill, and in the early ’70s, SCS Engineers designed building protection/sub-floor ventilation systems for several on-site structures. Once completed, SCS entered into contracts to monitor, maintain, prepare, and submit regulatory reports that the firm still performs well to this day.
“As we celebrate our 50th Anniversary, Alpine Village is an example of one of SCS’s oldest and longest continuously running projects,” said President and CEO Jim Walsh. We’re proud that we provide valuable environmental services to businesses and communities.”
Dave Ross, Senior VP (retired), said, “This certainly underscores SCS’s longevity and sustained superior client service. I can recall the elation when we won the first LFG [landfill gas] monitoring job there…I completed one of the earliest rounds of [air] sampling on the roof of the main building.”
Learn more about SCS Engineers and the award-winning environmental services this employee-owned firm provides.
SWANA is offering educational sessions as a webinar series with CEUs available from August through November. Register for just a few or pay one flat fee to participate in as many as you would like.
This week’s Webinar is on Thursday, October 1 at 10:00 am ET, 1 CEU.
State-of-the industry practices pertaining to the design, construction, operations, monitoring, and data analytics of LFG collection and control systems, as well as investigation of the quantity (mass flux) of fugitive (uncollected) LFG emissions.
Webinar Schedule and Registration
This 1 hour SWANA Training includes topics on Landfill Gas Emissions. Register through the VRA/SWANA Webinar Series. If you’d like to learn more about the services and technologies discussed during this session, try one of these links:
SCS periodically prepares Technical Bulletins to highlight items of interest to our clients and friends who have signed up to receive them. We also publish these on our website at https://www.scsengineers.com/publications/technical-bulletins/.
Our most recent Bulletin summarizes the
This Bulletin provides information on these revisions, as follows:
“An ounce of prevention is worth a pound of cure.” We’ve all heard that proverb before, and it’s true – it’s generally easier to stop something from happening than to repair the damage after it has happened.
This is almost always the case when it comes to environmental incidents – it is cheaper to prevent the incident from occurring than paying for the cleanup and impacts the incident caused. Many of SCS’s service areas are specifically focused on prevention and optimization – doing the job in ways that are better, safer, and more protective of human health and the environment.
Environmental insurance is a product that most SCS clients likely have in place in some form to protect their facilities, employees, and neighbors from the harmful impacts of incidents that can introduce contamination into the air, soil, groundwater, or surface water. The types of coverage provided by environmental insurance policies vary in both extent and cost, and many factors, one of which being risk, drive those costs. When an insurance company is underwriting coverage for a new or existing client, the risk associated with that coverage is carefully evaluated. What the client (insured) does, how they do it, their safety record, their history of previous environmental issues, and other factors are all taken into consideration when writing an environmental insurance policy and the associated premium and deductible are determined.
To reduce the up-front costs (the premium) associated with carrying the necessary and appropriate amount of environmental insurance, the insured can do several things. One is to increase their deductible, but in the event of an incident, that could end up costing the insured more on the back end (i.e., costs expended to investigate and remediate an incident). Insureds, their brokers, and the insurers will work closely to balance premium costs and deductibles so that the costs associated with addressing an incident are not detrimental.
An insured shouldn’t reduce the type and amount of coverage – that could put them in a bad financial (and legal!) position. A more prudent choice, one that has many potential positive aspects and makes sound business sense, is reducing risk and therefore the costs associated with an environmental insurance policy that is based on coverage and risk.
SCS Engineers develops proprietary remote monitoring and control software for landfills, manufacturing, and industrial facilities called SCS RMC®. The software provides remote real-time viewing, analysis, and control of equipment and systems critical to safe operations and production. A network of sensors and Machine-to-Machine (M2M) applications enable operations teams to be alerted immediately (via cell phones, computers, tablets) of any operational issues that could potentially result in an environmental incident.

The application reduces reaction time, labor costs, and potential associated impacts. In this case, SCS RMC® puts the client’s decision-making in front of a problem rather than reacting to potential aftermaths, proactively reducing the potential environmental risks of their operations.
SCS’s service areas, including those listed here, are particularly focused on providing our clients with assistance in designing, building, and maintaining sustainable solutions, reducing risk, and helping to foresee and adapt to environmental, social, and regulatory changes:
SCS’s professionals are available to assist our clients in their discussions with brokers and insurers regarding how our environmental services and technologies can potentially reduce risks associated with their operations. We do this by providing creative and cost-effective solutions and guidance that can prevent environmental incidents from occurring and reducing the nature and extent of associated impacts.
We can help you select and implement the “ounce of prevention” so that you won’t have to face the “pound of cure.” This will proactively reduce operational risks, which can, in turn, help facilitate the positive brokering of more favorable environmental insurance coverage, premiums, and deductibles.

Shown here COMM22, developed by BRIDGE-Housing, is an award-winning mixed-use, mixed-income, transit-oriented development located at Commercial and 22nd streets in San Diego. SCS’s environmental remediation of the property to ensure human health and the environment were protected as cost-effectively as possible enabled the four-phase development project; supporting both the social and business goals of our client and the community.
Local governments and non-profits use Brownfields grants to complete environmental assessments, redevelopment planning, and environmental cleanup. The grant opportunities available now are as follows:
Brownfields Assessment Grant– for Brownfields inventories, environmental assessment, redevelopment planning, and cleanup planning. Funding amounts of $300,000 for community-wide and $600,000 for coalitions.
Brownfields Cleanup Grant– for environmental cleanup of a specific property or properties, currently owned by the applicant. Funding amounts up to $500,000
Brownfields Multi-Purpose Grant-for a range of activities including redevelopment planning, inventories, environmental assessment, and environmental cleanup. Funding amounts up to $800,000.
SCS Engineers has provided grant writing and implementation services for over $10 million in successful Brownfields grant applications including an 80% success rate for first-time applications and over 90% success rate for second round applications. Our Brownfields team is ready to support your grant application effort too. We will work with you to understand the EPA Brownfields grant opportunities and support your development of a successful proposal.
SCS Engineers is a national environmental consulting and contracting company with local experts. We serve as Brownfields’ consultants for many public and private sector clients. Find more inspiration and economic redevelopment successes across our nation:




Find a Brownfields consultant near you, try our staff directory where you can search by specialty, city, and state.