SCS Events

Loading Events

« All Events

SWANA WASTECON® and ISWA’s World Congress 2017

September 25 - September 28

The World Congress is the biggest annual event organized by the International Solid Waste Association (ISWA). In 2017, WASTECON® co-locates with ISWA’s World Congress to offer two international events in Baltimore, Maryland.
ISWA World Congress & WASTECON® 2017 provide opportunities to see what’s new in collection, processing, marketing and management of compost, recyclables and solid waste. Join thousands of industry professionals and SCS Engineers for technical sessions, facility tours, exhibits, and networking opportunities. Explore a variety of new topics and expand your knowledge of what’s happening in solid waste management.

SCS professionals are speaking on a variety of topics and we always look forward to seeing our friends and peers from around the world. This year SCS is supporting these ISWA and SWANA sessions:





SCS Booth #400 – Just inside the main entrance.
Hours 6:30 pm – 9:00 pm

How to Get Published
with Panelist: David E. Ross, PE, BCEE, SCS Engineers (Associate Editor of WM&R, Baltimore World Congress 2017 Special Issue Editor)
2:00 pm – 3:00 pm

This panel discussion is targeted towards both waste management professionals and academics who are interested in publishing in the International Solid Waste Association’s academic journal, Waste Management and Research. The panel will consist of five elements: a welcome address, an introduction from panelists and initial comments, moderator questions, questions from the audience, and a wrap-up discussion. The panel will shed light on how to write a strong academic paper that fits within the aims and scope of the journal.

Following the presentation, the audience will be able to bridge the gap between both professional waste managers and academics in submissions to the journal.

Climate Change: Air Quality and GHG Regulatory Update for U.S. Landfills
3:30 pm – 4:30 pm

The panel representing the SWANA LFG/Biogas Division Rules and Regulation Committee will provide an update on the major U.S. air quality and GHG regulations affecting landfills. The focus of this presentation will be on the regulatory requirements, interpretations, deadlines, and issues related to the new NSPS and EG rules for landfills. The panel will cover key components of the rules, update the audience on ongoing interactions with U.S. EPA and state agencies, and provide an assessment of the expected impacts to industry. Guidance will be provided to promote a consistent, industry-wide approach to compliance. Additionally, the panel will cover updates to the federal GHG reporting rule, the national GHG inventory for landfills, and permit requirements for GHGs under federal and state programs. Those attending this panel presentation will be provided with the most up-to-date information on the major air and GHG regulations affecting landfills, provided by a team of industry experts. Attendees will leave the presentation with a stronger understanding of the requirements and implications of these regulations and be better equipped to achieve compliance for their facilities.


  • Patrick Sullivan, Senior Vice President, SCS Engineers
  • Amy Banister, Senior Director Air Programs, Waste Management
  • Matt Stutz, Principal, Weaver
  • Niki Wuestenberg, Manager, Air Compliance, Republic Services


Closing Open Dumps and Landfills
4:00 pm – 6:00 pm

In this panel discussion, international perspectives on the closure of open dumps and the encouragement of modern sanitary landfills will be presented, answering these questions:

European perspective. European countries have assumed a different approach to close landfills by adopting regulations that raise non-compliance fees and offer fiscal incentives for treatment, recycling, reuse and other non-landfill management systems, with heavy emphasis placed on waste to energy. How has the European experience to closing open dumps of the mid-20th century differed from the U.S. experience?
Developing Countries Current Status. Many developing countries are only now beginning down the path to closing open dumps. How are efforts being developed and implemented? What are the successes and challenges? What is needed to move this activity forward?
Closed may not be closed. Although many old U.S. dumps have been closed for many years, a new discussion is now upon us as to the perspective on post-closure and long-term care of these facilities. What have we learned about long-term management of these facilities and how might that benefit the developing countries that are only now beginning to deal with this issue? Is there a way that they can begin to determine when the landfills may no longer need additional oversight and management?


  • Lanier Hickman, former SWANA Executive Director
  • NC Vasuki, former ISWA President, former Delaware Solid Waste Authority CEO
  • James Law, Project Director, SCS Engineers
  • John Skinner, former ISWA President, and former SWANA Executive Director
  • Luis Marinheiro, Senior Environmental Engineering Consultant, Chair of the Working Group on Landfill of the International Solid Waste Association (ISWA)
  • Derek Greedy, retired, ISWA National Member, United Kingdom
  • Agamuthu Pariatamby, Research Associate, Institute of Biological Sciences, Faculty of Science, University of Malaya, Malaysia
  • Dr. Sahadat Hossain, Ph.D., P.E., Professor, Department of Civil Engineering Director, Solid Waste Institute for Sustainability University of Texas at Arlington
  • Jeremy O’Brien, Director of Applied Research, SWANA
  • Anastasia Welch, Vice President/Project Director, SCS Engineers

Smart Technologies and Their Impact on Collection and Transportation of Waste
with Marc Rogoff
5:15pm – 6:00 pm

Smart technologies have a big impact on funding solid waste infrastructure. Learn how to get started using smart technologies to operate more sustainably. Dr. Marc Rogoff is a nationally recognized expert in the financial modeling of solid waste management systems. With more than 30 years of experience in solid waste management as a public agency manager and consultant, he has managed more than 100 Pro Forma Modeling and rate assessments throughout the U.S. on all facets of solid waste management. They include waste collection studies, facility feasibility assessments, asset valuations, transfer station versus long-haul transport evaluations, fleet management and vehicle acquisition planning, MRF contract assessment and operations, and waste conversion feasibility.

Dr. Rogoff has directed Independent Engineer’s Feasibility Reports for nearly two dozen major public works projects totaling more than $1.2 billion in project financings. His work has included the development of detailed spreadsheet rate models establishing the financial feasibility of each project’s long-term economic forecasts, cash flow and IRR analysis, the cost of service, financial assurance, and projected rate impact upon project users and customers. He has written widely in the field and is the author of several noted textbooks covering the topics of financial forecasting and project feasibility.



SCS Booth #400 – Just inside the main entrance.
Hours 10:00 am – 2:00 pm

Climate Change: Quantifying GHG Emissions Reduction from Waste and Resource Management Techniques
with Alex Stege, Senior Project Advisor, SCS Engineers
8:00 am – 8:30 am

Life-cycle analysis (LCA) models evaluate the full benefits of waste management decisions and provide the perspective needed to guide long-term planning decisions for achieving environmental sustainability. LCA’s main limitations arise from the spatial and temporal scale of analysis, which makes it less precise in defining time-dependent landfill methane emissions that dominate waste sector GHG emissions in many countries.

This paper explores the effectiveness of LCA for guiding local solid waste management decisions in developing countries in light of uncertainties caused by the temporal and spatial scales of LCA and by its assumptions of linearity and heavy reliance on good waste composition data. To evaluate GHG emissions in developing countries where landfill methane dominates, and to monitor progress in emissions reduction from benchmark levels, city planners need models that provide realistic estimates of annual landfill methane emissions by accounting for ever-changing conditions at specific disposal sites. LCA’s scale of analysis is appropriate for setting goals, but compounds the large uncertainties in landfill emissions estimates, and is unable to evaluate the achievements of interim steps towards reaching sustainability that developing countries will need to undergo, including the closing and remediation of existing dump sites, and the collection and destruction of landfill methane.

LCA’s scale of analysis is appropriate for setting goals, but compounds the large uncertainties in landfill emissions estimates, and is unable to evaluate the achievements of interim steps towards reaching sustainability that developing countries will need to undergo, including the closing and remediation of existing dump sites, and the collection and destruction of landfill methane.

Following this presentation, participants will be able to understand the limitations of LCA, including the effects of the temporal and spatial scales of analysis, on its effectiveness for guiding local solid waste management decisions in developing countries.

Closing Dumpsites: Assessing the Practicality of a Solution
Bruce Clark, Project Director, SCS Engineers
2:00 pm – 3:00 pm

In 2013, Bruce Clark traveled to an eight-hectare dumpsite on the edge of a major urban center to assess a closure project. The open dump is still there. This is his account of what was conveyed to him from the authorities and his own observations of ill-conceived plans including a WTE plant, a successful compost plant engulfed in the dump, and removal of the dump. The presentation assesses the alternate design and the regulatory design for relocation,  and the cost estimates and practicality associated with both. Mr. Clark will uncover the costs and impracticality of plans with dubious value for improving conditions for the village inhabitants, and the impacted river nearby. This session covers:

  • Examination of the technical issues of closing a dump,
  • Evaluation of the appropriate dump closure costs, and
  • Understanding the long-term post-closure care costs.

Resource Management and Waste Diversion: A Discussion of U.S. and European Recycling and Waste Reduction
2:00 pm – 3:30 pm

This session is a result of collaborative efforts by ISWA’s Working Group on Recycling and Waste Minimisation and SWANA’s Technical Division on Sustainable Material Management. Speakers will describe the similarities and differences between recycling and waste reduction policies and programs in the U.S. and Europe. Attendees will hear an overview of the basics with an international perspective and participate in an engaging crowdsourced discussion with the presenters as well as other audience members.


  • Iain Gulland, Chief Executive, Zero Waste Scotland
  • Tracie Onstad Bills, Northern California Director SMM, SCS Engineers
  • Herman Huisman, Senior Advisor, RWS, Ministry of Infrastructure and Environment


  • Jeff Cooper, former ISWA President and ISWA Working Group on Recycling and Waste Minimisation
  • Stacy Demers, Director, SWANA Technical Division on Sustainable Material Management, SCS Engineers

Getting at the Last 25 Percent 

Tracie Onstad Bills discusses how California communities are evaluating what the next step to diversion is and how they are targeting residuals as a method to achieving higher diversion. With MRFs and new organics processing systems in place, communities are pulling out as much of the recyclable or compostable material as possible. But there is still a large volume of material that gets sent to landfill. She will use case studies of three cities and two hauling companies that are targeting how to increase diversion by trying new technologies and processes to address the residual fraction. The fraction represents the last 25% of material not diverted. An overview of the different technologies being used or considered will be highlighted to round out the presentation.

By attending this presentation, participants will better be able to understand what other cities are doing with the toughest fraction of the waste stream, to learn about what technologies are being used to assist with diversion and to develop an understanding of what might work in your community.

Closing Dumpsites: Technical Problems and Challenges of Closing Open Dumps
with James Law, P.E., BCEE, LEED AP BD&C, SCS Engineers2:15 pm – 2:45 pm
2:15 pm – 2:45 pm

Open dumps remain as the main waste management and disposal method in most developing countries. The most noticeable problems at any open dumps are the widely dispersed uncovered waste that is easily contributed to air blown litter, almost no application of daily cover soil, poor access roads, open burning of waste, no compaction of waste or control of waste placement, poor recording keeping of incoming waste, scavenging at the working face, no security fence or checkpoints, presence of vermin, animals and other vectors, no odour, leachate or gas collection and treatment systems, and on top of all, no planning or engineering and monitoring measures or control systems. All these problems and issues are real challenges when closing of an open dumpsite. The presentation addresses these common problems as challenges when closing open dumps in developing countries and aims to stimulate audience participation and discussion.

Several innovative solutions and alternative closure materials usage such as bio-covers will be discussed. A traditional U.S. Subtitle D closure system may not be suitable for these developing countries, considering the material availability, cost-benefit, and overall environmental protection performance.

Resource Management and Waste Diversion: Evaluating the Impact on Waste Management caused by the Changing Waste Stream Composition
4:00 pm – 6:00 pm

Solid waste management, and in particular sanitary landfilling, is being impacted by waste composition evolution. One notable change is an overall decrease in tonnage. Reasons for the reduced quantity may be attributed to factors such as increased diversion of recyclables, increased diversion of vegetative organics, evolving diversion of food waste, changes to packaging, expansion of fresh organic foods lifestyle, expansion of fitness lifestyles, as well as other generational life choices. These changes are manifested in the continued reduction in waste requiring land disposal, a trend that began with the economic downturn of 2009-2010; current generation quantities have not fully recovered from the downturn.

While this description relates to the traditional composition of waste requiring landfilling, other societal factors are also changing material composition.

Oil and gas exploration and production (E&P) using hydraulic fracturing methods (fracking) generates E&P drilling waste that requires disposal. Often this material is disposed of at existing landfills, necessitating the re-evaluation of design criteria such as slope stability.

The elimination of coal combustion residual (CCR) impoundments has resulted in additional coal ash being diverted to landfills.
The European Union has mostly banned organics from landfills which change the landfilling practices throughout that sector.

These topics will be discussed, as follows:

  1. Changes in quantity and composition of U.S. MSW.
  2. The potential impact of landfill gas generation caused by organic diversion from the landfill.
  3. Stability issues that should be considered with waste composition changes, specifically E&P waste and other high moisture content “special” wastes during co-disposal.
  4. Problems in international areas with landfill failures (Asia, South America, and Africa) and what can be done to prevent the problems.
  5. The operational changes necessitated by organic diversion and its impact on a “sustainable resource management center” model.


  • Robert Schoenberger, P.E., Ph.D., Board Member, Chester County Solid Waste Authority
  • Alex Stege, Senior Project Advisor, SCS Engineers
  • James Law, P.E., BCEE, LEED AP, SCS Engineers
  • Tim Mitchell, P.E., Project Manager
  • David Dugger, S.C., Landfill Manager, City of Denton, TX

Closing Dumpsites: Management of Water in the Final Cover of Dumpsites
with Dr. Ali Khatami, Vice President, SCS Engineers
5:00 pm – 5:30 pm

Dr. Khatami’s presentation discusses the issue of collecting water from landfills final cover drainage layer. Due to significant advances in the manufacturing of geosynthetics and effectiveness of geocomposites as a drainage medium, most landfill final covers have geocomposite drainage layers directly above the geomembrane barrier layer that collect and convey water in the final cover. Rainwater that percolates into the final cover upper soil layer reaches the geocomposite drainage layer and flows down the slope to the toe of the slope. A collection system is needed to collect and remove the water from the drainage layer. An effective collection and management system that has been perfected over the past 18 years and implemented at numerous final cover projects is the subject of the presentation. The system is namely referred to as the Rainwater Toe Drain System (RTDS). The presentation begins with describing the system with simple sketches and continues with photos of construction events showing step-by-step construction of a RTDS.

Following the presentation, participants will be able to develop and design an effective collection and management system for water in the drainage layer of dumpsites final covers to maintain final cover stable and to prevent pore pressure build up in the final cover. Without an effective and properly design collection system, there will always be the possibility of failure or slippage by veneer instability of the final cover.


SCS Booth #400 – Just inside the main entrance.
Hours 1:00 pm – 5:00 pm


Fresh Kills Landfill Tour – Freshkills Park in Staten Island

On this full-day tour, participants will travel by bus to the Fresh Kills Landfill/Freshkills Park, a closed site that covered 2,200 acres in the New York City borough of Staten Island. It was once the largest landfill in the world. It was one of only two human-made structures visible from space, the other being the Great Wall of China.

In October 2008, reclamation began on a 30-year site redevelopment for use as a park, which will be three times the size of Central Park in New York City. The park is scheduled for completion in 2037 as the final closure phase by SCS Engineers continues. Participants will see a highly engineered site that is at the same time, an incredibly beautiful landscape. The infrastructure systems that manage the landfill gas and leachate will be shown as well as the initial park projects that are beginning to transform the site. Tour guides will point out particular landfill features as well as returning natural habitats.








Baltimore Convention Center
Baltimore, MD
+ Google Map


Get In Touch


Subscribe To Our Resources

Sign up to receive periodic bulletins of environmental issues of interest such as: regulatory policy, court cases, tax incentives, emission standards, and more.

By signing up you agree to the terms and conditions outlined in our Privacy Policy.