solid waste management

Alabama SWANA Spring Meeting, Orange Beach, AL

January 24, 2023

Meet SCS Engineers professionals at our booth at the SWANA Alabama Chapter’s Spring Meeting, April 3-5, at the Perdido Beach Resort in Orange Beach, AL.

The Alabama Chapter is dedicated to advancing the practice of economical & environmentally sound solid waste management in the State of Alabama.  The Spring Meeting awards student scholarships, honors outstanding individuals, and provides continuing education opportunities.

Click for more details and registration information.


Posted by Laura Dorn at 3:44 pm

MDE Finalizes and Publishes Draft New Maryland Landfill Air Regulation

January 19, 2023

SCS Engineers Landfill Methane Capture


MDE Regulatory Alert: Maryland Landfill Air Regulation

On December 30, 2022, the Maryland Department of the Environment (MDE) published a proposed regulation addressing the control of landfill gas (LFG) methane emissions from municipal solid waste (MSW) landfills in the state. Methane is a potent greenhouse gas (GHG) with a global warming potential of more than 25 times greater than carbon dioxide. The proposed regulation is modeled after similar rules in California and Oregon, incorporates provisions from the EPA’s federal landfill air regulations under NSPS & EG 40 CFR 60 Subparts Cf and XXX and NESHAP CFR 63 Subpart AAAA, and would become among the most stringent in the US.

The new regulation will be submitted to the EPA for approval as part of Maryland’s state plan for MSW landfills (state plan). The state plan will be equivalent to or more stringent than the EPA’s NSPS & EG 40 CFR 60 Subparts Cf and XXX and NESHAP CFR 63 Subpart AAAA, and will apply to smaller and mid-sized landfills not currently subject to the EPA’s federal rules.

MDE estimates that 32 active and closed MSW landfills in the state will be subject to the proposed regulation.

Some key provisions of the rule include:

  • The rule will apply to active and closed MSW landfills that have accepted waste after 11/8/1987 and that have a design capacity greater than or equal to 2,750,000 tons and 3,260,000 cubic yards, and active and closed MSW landfills that have accepted waste after 12/31/1993 that have less than 2,750,000 tons or 3,260,000 cubic yards of waste but greater than 450,000 tons of waste in place.
  • Closed or inactive landfills, or closed inactive areas of an active MSW landfill, that have commenced installation of solar panels or arrays on or before 1/1/2024 are exempt from the rule if they meet certain requirements.
  • MSW landfills with a calculated methane generation rate greater than 8,548 tons per year must install a gas collection and control system (GCCS).
  • MSW landfills with a calculated methane generation rate between 732 tons per year and 8,548 tons per year can either install a GCCS or evaluate surface methane emission rate, the results of which would determine if a GCCS is required.
  • If required, landfills must operate the GCCS for a minimum of 15 years and until the point that the methane generation rate has reduced to below 732 tons per year.
  • Specific requirements for the use of control devices such as enclosed or open flares. The use of open flares is permitted only until 1/1/2025. The rule includes minimum control requirements for devices and initial and annual source testing.
  • Evaluation of surface methane emission rates through both instantaneous (500 ppm) and integrated (25 ppm) monitoring requirements and standards.
  • Leak monitoring and standards (500 ppmv) for GCCS components that contain LFG and are under positive pressure.

This rulemaking has been several years in development and is consistent with Maryland’s GHG Reduction Act of 2009 and the recent Climate Solutions Now Act of 2022 that requires Maryland to become “net zero” for GHG emissions by 2045, with an interim goal of achieving 60% GHG reductions by 2031 (over 2006 levels). MDE estimates that once implemented, this rule will achieve a 25-50% reduction in GHG emissions from affected landfills. MDE estimates the capital costs associated with rule compliance would range from $1 to $3 million, annual operating and maintenance costs range from $150k to $400k, and additional costs for monitoring (~ $60k annually), recordkeeping, and reporting.

MDE has scheduled a virtual public hearing on the proposed action at 10:00 am on February 1, 2023. Comments can be submitted by 5:00 pm (Eastern Time) on February 1, 2023, to Mr. Randy Mosier of MDE at .


For additional information on MSW regulations and GHG emission reductions, please visit or one of SCS’s nationwide offices.








Posted by Diane Samuels at 6:00 am

2023 SWANA FL Winter Conference

January 18, 2023

Speak with SCS Engineers environmental and solid waste professionals at the 2023 SWANA FL Winter Conference, February 20-22, at the Hilton Orlando Lake Buena Vista.  SCS Engineers is a sponsor of this event.

The conference will explore “Imagine More: The Brightest Ideas in Solid Waste” and will feature industry thought leaders and the brightest minds in the solid waste industry, all in the beautiful setting of the Disney Springs area. Continuing education hours will be available.

The program will provide an interesting and educational agenda of sessions and speakers discussing the latest developments in the solid waste industry and a great way for industry suppliers and service providers to showcase their products and services.

This multi-day conference will include general sessions on best practices in the solid waste management profession, networking events and more.  The conference is attended by local, state and municipal government solid waste directors, managers, regulators, operators and coordinators, in addition to private sector consulting engineers and suppliers of materials and equipment used in the management of solid waste.

Click for Program and Registration Information


Posted by Laura Dorn at 11:24 am

EPA Alert: Fugitive Emissions Rule Granted Reconsideration

January 16, 2023

The U.S. Environmental Protection Agency (EPA) has issued a proposed rulemaking (Federal Register, Vol. 87, No. 198, Friday, October 14, 2022) that would address a 2008 Fugitive Emissions Rule that was subsequently granted reconsideration based upon a petition from the National Resources Defense Council (NRDC).  The key issue is how fugitive emissions are considered under Section 111 of the Clean Air Act (CAA), as related to the definition of modification.

Modification means any physical change in, or change in the method of operation of, a stationary source which increases the amount of any air pollutant emitted by such source or which results in the emission of any air pollutant not previously emitted. 42 U.S. Code § 7411(a)(4).

In 2008, the Bush EPA published its Fugitive Emissions Rule that sought to “reconsider” the inclusion of fugitive emissions under this language.  Fugitive emissions are defined as:

Those emissions which could not reasonably pass through a stack, chimney, vent, or other functionally-equivalent opening. 

NRDC’s petition for reconsideration argued that the Bush EPA weakened the standard for determining major modifications by excluding fugitive emissions from major Prevention of Significant Deterioration (PSD) and non-attainment New Source Review (NSR) applicability.

The proposed rulemaking would result in a formal reversion to the pre-2008 language.  EPA’s Director for its Office of Air Quality Planning & Standards (OAQPS) has indicated that the rule “would require fugitives to be counted in all new and modified major source determinations,” effectively ending the Bush-era limitations on counting of fugitive emissions.

The potential impact of EPA’s planned fugitive emissions rule may prove significant and is expected to affect a wide range of diverse industry sectors being impacted, such as power generation, oil & gas extraction, mining, paper mills, petroleum refining, chemical manufacturing, coatings operations, and solid waste facilities. In particular, both landfills and compost facilities can have significant fugitive emissions.

Based on our current understanding, the proposed rule will effectively eliminate the ability to exempt fugitive emissions under the current exemption in 40 Code of Federal Regulations (CFR) 52.21(i)(vii).  This would mean that if a source is an existing major PSD or non-attainment NSR source for ANY pollutant, and modifies, then both non-fugitive AND fugitive emissions for ALL pollutants must be counted to see if the project is a major modification under PSD/NSR.  Triggering a major modification would also mean that fugitive emissions are included in the various compliance elements of PSD or NSR (e.g., best available control technology [BACT], lowest achievable emission rate [LAER], modeling, offsets. etc.).

To add more context for landfills, as an example, if an existing landfill, which is already deemed major due to carbon monoxide (CO) or sulfur dioxide (SOx) emissions from flares (Potential to Emit [PTE] >250 tons per year [tpy]), conducts an expansion that will result in 15 tpy of new particulate matter less than 10 microns(PM10) [and/or 10 tpy of PM2.5] fugitive emissions from windblown dust, this would be a major modification under PSD, requiring BACT and modeling for fugitive PM.  This could also include BACT and other requirements for fugitive methane as a regulated greenhouse gas (GHG) or volatile organic compounds (VOCs)/non-methane organic compounds (NMOCs) from the additional fugitive landfill gas (LFG) emitted from the expanded landfill. Compost facilities can also have significant VOC emissions, which could put them at risk from this rule change.

Public comment on the rulemaking ends on February 14, 2023, which is an extension of the previous deadline. The solid waste industry will provide comments through the Solid Waste Association of North America (SWANA) and the National Waste and Recycling Association (NW&RA). This will be the last chance to have any effect on the rulemaking. Otherwise, landfills and possibly compost facilities could face more stringent requirements under the PSD and NSR programs when it comes to fugitive emissions.


Landfill and compost facility owners and operators may direct their questions pertaining to specific facilities to their Project Managers or .







Posted by Diane Samuels at 9:21 am

Wisconsin Integrated Resource Management Conference (WIRMC), Green Bay

January 5, 2023

SCS Engineers is a Silver Sponsor of the Wisconsin Integrated Resource Management Conference (WIRMC) to be held February 22-24 at the Hyatt Regency in Green Bay.

The conference will feature numerous networking opportunities, exhibitors, field trips, and several tracks exploring the latest solid waste management trends and practices.

The following SCS professionals will be presenting at the conference:

Vice President Betsy Powers is co-presenting in “Getting Up to Speed: Effectively Onboarding People for Success”
with Analiese Smith of Waukesha County and Karin Sieg of Recycling Connections
[Track Session II, Thursday, February 23 at 2:30]

Abstract: Solid waste organizations are looking to hire, and the waste business doesn’t have the glamor some other companies can offer. With a tight talent pool available, organizations with good onboarding programs can help attract good talent by highlighting the organization’s culture, reduce the time for a new employee to become a productive employee, boost employee engagement and help build a stronger company culture. We don’t often talk about topics like this, but building and maintaining a strong work force in our field is important. So let’s start talking about it!

Betsy Powers will also co-present on “How One MN Waste Processing Facility is Tackling 75% Diversion”
with Nate Klett of Foth
[Track Session V, Friday, February 24 at 10:30 am]

Abstract: Ramsey and Washington Counties recognize that there is often value to the items that people put in the trash. R&E sees the waste stream as a resource stream. This resulted in the 2016 purchase of the Recycling & Energy Center (R&E Center), located in Newport, Minnesota. All trash generated by individuals and businesses in the two counties is delivered to the R&E Center, where R&E works to recover value. The R&E Center is permitted to process 500,000 tons of trash per year. Trash is processed to recover recyclable metals and make fuel for producing electricity. In 2019, nearly 90% of the waste from the two counties was diverted from landfill because of the processing that occurs at the R&E Center. After researching and evaluating options to recover recyclables in the trash, R&E has targeted residential food scraps and remaining recyclables in trash as the next resources to recover from the mixed waste stream. The R&E Center is adding equipment to recover residential organics placed in durable compostable bags that are comingled with trash. Additional equipment upgrades will recover high-value recyclables such as metals, plastics and cardboard. Research is also under way to partner with private industry to utilize anaerobic digestion to recover value from the organics recovered at the R&E Center. We’ll discuss the research and reconnaissance as well as the design and installation of these systems and touch on the technologies that are being considered for recovering additional value from the byproducts.


The Wisconsin Integrated Resource Management Conference is the #1 place to market your business to Wisconsin solid waste and recycling professionals at the Exhibit Hall.

The Wisconsin Integrated Resource Management Conference is jointly hosted by the Associated Recyclers of Wisconsin (AROW), the Solid Waste Association of North America (SWANA) – Badger Chapter, the Wisconsin Counties Solid Waste Managers Association (WCSWMA) since 2000, and Recycling Connections, allowing professionals from all aspects of the solid waste & recycling industry to collaborate and learn from one another.

Click for more conference details and registration information




Posted by Laura Dorn at 7:03 pm

AAEES Webinar – Plastics: Hero or Villain When We Manage Their Afterlife?

December 19, 2022

AAEES and SCS Engineers


AAEES Webinar Plastics: Hero or Villain When We Manage Their Afterlife?

Wednesday, January 11, 2023
12:00 PM Eastern | 9:00 am Pacific
1 hour and 30 minutes (approximate)
$40 for non-members | FREE for all AAEES Members

American Academy of Environmental Engineers & Scientists (AAEES) presents an interactive session with “live chat” capability. The session is open to environmental engineering and science professionals across all sectors and career stages. Our objective is to offer special insights on leading-edge solutions for graduate and undergraduate students and early to mid-career environmental professionals considering specialty certification.

AAEES Board Certified Individuals: Attend this event and earn 1.5 PDHs towards your PDH requirements for maintaining your specialty certification.

Webinar Summary

Plastics have always had a rocky reputation. Fifty years ago, the Kinks sang “Plastic Man” as a paean to their superficiality. Now they are blamed for a wide array of problems ranging from marine debris, environmental injustice, negative health impacts, and fraudulent recycling. Yet their use has transformed the products we use in our daily life and what we do with those products when we are through with them. In 1960, plastics were less than half of a percent of America’s trash. Today, they are one-eighth of the garbage we generate. Their impact is significant.

This webinar will look at the rise of plastics in our waste. It will examine the collection, disposal (whether energy recovery or landfill), and recycling along with the extent to which plastics have led to less waste to manage. This webinar will teach you more about plastics’ pervasiveness in our society and how we can best manage their afterlife.

About the Presenters

Bob Gardner holds B.S. and M.E. degrees in civil engineering from the University of Virginia. He is a Senior Vice President of SCS Engineers and has been with the firm since 1980. He serves on the firm’s Board of Directors and oversees SCS’s nationwide solid waste management practice. His expertise is in solid waste management and environmental engineering. He provides consulting and engineering services to municipal and private clients throughout the United States and abroad. Bob is involved with the Environmental Research and Education Foundation Research Council. He is a past Director of the Solid Waste Association of North Americas Landfill Management.

Chaz Miller is a fifty-year veteran of the waste and recycling industry. He was part of EPA’s original Resource Recovery program, is a recipient of a Lifetime Achievement Award from the National Recycling Coalition, chaired the Aiming for Zero Waste Task Force in his home county in Maryland and writes an award-winning column for Waste360 magazine.

Click to Regster





Posted by Diane Samuels at 6:00 am

A&WMA/ASME Waste Information Exchange, Arlington, VA

December 15, 2022

Meet SCS Engineers professionals at the A&WMA/ASME Waste Information Exchange, April 11-12, 2023, at the Doubletree Hilton Washington DC-Crystal City Hotel, in Arlington, Virginia.

This conference will cover the latest on a broad range of waste-related topics including regulations and research in an interactive, discussion-focused format. This is an excellent learning and networking opportunity to hear directly from experts at EPA, NGOs, industry, and academia who are working together to develop solutions to creating a cleaner and healthier environment.  The technical program will cover policy updates and regulatory changes, as well as current and late-breaking research on hot topics such as:

• Solid Waste
• Biosolids
• Landfill Issues and Greenhouse Gas Emissions Monitoring
• Reuse/Recycling
• Resource Management
• Waste-to-Energy
• PFAS Emissions and Controls
• Environmental Justice
• RCRA Requirements for Open Burning

Managers, practitioners, policymakers, and researchers involved in waste management, public works, operations, maintenance, manufacturing, transportation, technology, compliance, collections, and other environmental roles will benefit from the technical content and networking available at this conference.

Sponsorship and display opportunities are available at this conference! Discover how your company can maximize exposure, generate leads, and support the industry.

Visit for registration information and evolving conference details.



Posted by Laura Dorn at 6:09 pm

SWANA Evergreen 2023 NW Symposium, Tulalip, WA

November 9, 2022

The Washington Evergreen Chapter of SWANA is hosting the 2023 Northwest Regional Symposium at the Tulalip Resort Hotel (Tulalip, WA), April 18-20, 2023. SCS Engineers/SCS Field Services is a Bronze Sponsor of the event. SCS Engineers is also a Meal Sponsor.

Organizers are putting together a dynamic program on The Next Normal: The Future of Solid Waste Management, and are accepting abstracts through December 9.  Suggested topics include the following:

  • The future of labor in the solid waste industry (i.e. hiring/retention amid staffing shortages, automation)
  • Safety, operations, and planning post-COVID-19
  • Innovations in landfill and facility operation
  • Organic materials management, collection, processing, and policy
  • Extended producer responsibility (EPR) policy and programs
  • Climate change and solid waste operations/emergency management
  • New and emerging materials markets
  • Alternative fuel technologies (i.e., operations, economics, emissions)
  • Integrated solid waste management planning
  • Solid waste system finance and ratemaking
  • Collection systems management

For questions about presenting or participating in a panel discussion, contact Matt Hobson, Chair of the Symposium Speakers Committee, at .

Join solid waste industry professionals and students from a wide variety of specialized fields for this 3-day information exchange and learn from technical experts about the future of solid waste management.

Check their website frequently as the conference program takes shape



Posted by Laura Dorn at 1:10 pm

Colorado SWANA 2022 Conference

October 3, 2022

SCS Engineers Environmental Consulting and Contracting
Fire mitigation planning and the impact on insurance at Colorado SWANA 2022 Conference.


Fires are occurring with increasing frequency in the solid waste and recycling industry. While fires are a serious safety risk to facility personnel and emergency responders, they pose an administrative risk as facilities struggle to keep or renew insurance policies. Learn how developing a fire mitigation plan and training can help prevent fires and keep them from escalating by identifying gaps in knowledge, resources, and communication between facility managers and emergency responders.

Jeff Phillips‘ presentation at the Colorado SWANA 2022 Conference will provide an update on fires within the industry so we can learn from other events (the good and bad). His presentation will also cover the benefits of having a fire mitigation plan, developing the plan and its components, the unique safety risks solid waste facilities pose to emergency responders, strategies to engage emergency response managers, and suggestions on how to “train the plan.”

Thursday, October 13, 2022
Breakout Session 12: Landfill Operations, 1:15pm-2:45pm




Posted by Diane Samuels at 6:00 am

Waste Expo 2023, New Orleans

September 28, 2022

Meet SCS Engineers and SCS Field Services professionals at Booth 1704 at WasteExpo 2023, May 1-4, in New Orleans.

WasteExpo is the place to be!  The conference program is your professional development opportunity of the year! The education and training that you’ll receive is guaranteed to sharpen your skills to help you do your job better. WasteExpo’s conference program is unparalleled. 2023 Conference Tracks include:

  • Operations, Fleet & Safety
  • Recycling & Landfill
  • Business Insights & Policy
  • Technology & Innovation
  • and more!


Robert Dick

A Bird’s-Eye View: Using Satellites and Drones to Detect and Monitor Emissions, Bob Dick, Sr. VP (Moderator)
Monday, May 1
8:00 AM – 9:15 AM
Room: 275
Session Number: MTECH1


Michelle LeonardWhy is Multifamily Recycling So Hard? with Michelle Leonard, Sr. VP and National Expert on SMM
Monday, May 01, 2023
8:30 AM – 9:45 AM
Room: 279
Session Number: MRECYC1


Nathan HammPFAS: Price to Fix Adulterants will Soar with Nathan Hamm, VP and National Expert on Liquids Management
Monday, May 01, 2023
10:15 AM – 11:30 AM
Room: 279
Session Number: MRECYC2


Seizing an Opportunity: The Rise of MRF Investments with Bob Gardner, Sr. VP Solid Waste
Tuesday, May 02:
12:00 PM – 1:15 PM
Room: 279
Session Number: TRECYC3


Philip CarrilloThere’s an App for That! with Phil Carrillo, RMC National Director
Wednesday, May 03: 10:45 AM – 12:00 PM
Room: 275
Session Number: WTECH2


Minimum Recycled Content: Challenges and Opportunities with Vita Quinn, National Expert on Solid Waste Finance and Rate Studies
Day and time to be announced.




Click for more conference details and registration information




Posted by Diane Samuels at 10:01 am