Wastes and Toxics

ERG provides a full suite of services to help clients design, implement, and assess strategies and programs to prevent, reduce, and manage wastes and toxic releases. Our engineers and scientists characterize solid and hazardous wastes, conduct solid waste audits, and evaluate diverse technologies to inform site-specific remediation strategies. Their cutting-edge research and technical support on emerging issues includes PFAS investigations in all media and substrates. They also evaluate industrial processes and products to identify toxic releases and associated human and environmental exposures. To help clients understand options for reducing the volume and toxicity of waste streams, our engineers and life cycle analysts assess alternative manufacturing processes; identify green engineering, green chemistry, and treatment technology options; and evaluate recycling and end-of-life management strategies. Complementing this work, ERG program development and outreach specialists support government agencies in designing, implementing, and managing voluntary green purchasing, recycling, and waste reduction programs. For clients interested in understanding the value of regulatory or voluntary efforts, ERG economists evaluate the cost-benefit of waste or toxics management, reduction, and prevention programs.

Hazardous Waste
  • Hazardous waste characterization
  • Evaluation of hazardous waste treatment technologies
  • Pollution prevention assessments and feasibility studies
  • Identification of emerging hazardous waste issues and trends
  • Risk-based targeting at the sector and facility level
  • Hazardous waste regulatory development and analysis
  • Waste management guidance and training
  • Hazardous waste program evaluation
  • Groundwater research 
Solid Waste
  • Solid waste characterization and waste flow assessments
  • Life cycle analyses
  • End-of-life management evaluations
  • Solid waste audits
  • Recycling program design and implementation
  • Outreach, promotion, and education
  • Data analysis, performance metrics, and tracking
Toxic Substances
  • Industrial process analysis
  • Identification of chemical releases and occupational exposures
  • Chemical release modeling
  • Exposure assessments and modeling
  • Fate and transport assessments and modeling
  • Screening-level risk assessments
  • Risk and hazard ranking tool development
  • Green engineering, green chemistry, and Design for the Environment (DfE) analyses
  • Economic assessment of supply chains associated with chemical manufacturing, processing, and use
  • Market data collection and analysis


Service Area Leads

Shanika Amarakoon

As an immigrant, issues of race, equity, and inclusion have always been central to my lived experience and values. As an environmental engineer and policy analyst, I feel grateful to align my convictions with my experience and to lead ERG’s environmental and climate justice solutions practice.

Shanika Amarakoon

Photo of Sam Arden

Solving today’s complex environmental challenges is a daunting task. It requires the delicate balancing of many competing factors, from cost and convenience to public health protection and resource allocation. At ERG, I am fortunate to be able to work on projects that get to the core of this balance, surrounded by clients and colleagues who are equally passionate about finding mindful, objective solutions for our complex world.

Sam Arden

Julie Blue Bio

I feel fortunate to work with so many dedicated researchers at EPA and other agencies on remediating contaminated water sources, adapting to climate change, and providing decision-support in related areas. While my particular expertise is groundwater, I’ve had the opportunity to lead projects in urban planning, coral reefs, climate change resilience, emergency response, stormwater, modeling, and more. Multi-disciplinary approaches are helpful for tackling all these issues, and I’m always learning.

Julie Blue

Photo of John Carter

In my experience, effective climate action requires invested leadership, multidisciplinary expertise to address all sources of greenhouse gas emissions, and equitable stakeholder engagement to guide and successfully implement new policies and strategies. I have had the pleasure of managing several climate action plan projects, guiding both municipalities and universities through the process of developing and implementing their unique plans, and I’m proud of the positive benefits those plans have brought to stem the effects of climate change.

John Carter

Photo of Susan Day

I always appreciate when our government clients ask us to help them quantify the benefits and costs of actions they are considering. The more complex assignments, such as accurately characterizing behavioral changes under multiple compliance scenarios, put a premium on our creativity and experience.

Susan Day

Photo of Laura Harwood

ERG’s commitment to respect, kindness, and compassion has given me an incredible foundation to serve our clients and help preserve the environment to the best of my abilities.

Laura Harwood

Photo of Daryl Hudson

The synergy between my enforcement and chemical evaluation work is invaluable. Because of the overlap, I routinely apply my skills and knowledge from one field to the other. This makes my work more efficient and enables me to approach it more holistically.

Daryl Hudson

Photo of Cheryl Keenan

Sustainability has been a central theme throughout my career. As an engineer, I particularly enjoy crafting approaches and tools to efficiently reduce chemical and energy inputs, guided by lessons learned from sustainability initiatives worldwide.

Cheryl Keenan

Dena Krichinsky

Each year, Americans generate millions of tons of waste and consume increasing amounts of resources. Educating and helping the public and organizations learn how they can reduce, reuse, and recycle has been a major focus of my career. I take great satisfaction in applying my extensive waste reduction knowledge to help my clients design and implement strategies to reduce the impact that waste has on the U.S. environment.

Dena Krichinsky

Photo of Susan McClutchey

I came to ERG an optimist with a thirst for learning, collaboration, and problem solving. Reflecting on my years with ERG, while progress may be incremental, I have found that the benefits of our work are irrefutable. My optimism for the future remains intact and stems from having colleagues and clients who are relentlessly dedicated to improving the world for every person in it.

Susan McClutchey

Photo of Mike McFadden

Through my experience operating water systems, I have come to appreciate how dedicated utility staff are to ensuring that communities have safe drinking water. Whether I’m providing technical assistance or conducting a compliance inspection that may call out an issue, I have great respect for all who strive to protect human health under whatever site-specific challenges they may be working with.

Mike McFadden

Photo of Will Morgan

Environmental science—especially figuring out how and where chemicals move through the environment—is continually challenging and endlessly fascinating. It’s extremely rewarding to know that our work helps protect human health and make sites safer for future generations.

Will Morgan

Photo of Joy Onasch

I am driven to apply pragmatic, preventive approaches to preserve and protect our environment for the next generation. I enjoy seeing project results that lead to improved worker health and safety and a cleaner environment.

Joy Onasch

Diana Pietri

Designing equitable solutions for sustainable environmental conservation and management efforts is a constantly challenging, rewarding endeavor. I love collaborating closely with our clients to develop strategies that promote environmental and climate resilience and justice—including evaluating environmental program effectiveness and identifying innovative best practices for coastal and ocean planning.

Diana Pietri

Kurt Rindfusz

Bringing regulators and the regulated community together, educating them on each other’s concerns, and helping to find environmentally preferable and economically feasible solutions are some of the most enjoyable parts of my work.

Kurt Rindfusz

Photo of Jason Rose

Until recently, we have too often taken an “out-of-sight, out-of-mind” approach to waste disposal and overlooked the connection between surface and ground water, leading to contamination and depletion of both. We have to climb out of this history of environmental exploitation to a path of sustainability. I enjoy all my work to help get us there, including groundwater remediation, reducing sanitary sewer overflows, ensuring proper operation of injection wells, aquifer storage and recovery systems, and design of new water production wells.

Jason Rose

Photo of Jason Sese

Development of innovative assessment tools and methods is essential for protecting human health and the environment. At ERG, I’m excited to be at the forefront of these advancements.

Jason Sese

Photo of Alex Swain

My passion for protecting the natural world stems from a childhood spent enjoying the outdoor expanses and natural beauty of Colorado. Now, I channel that passion into developing innovative approaches for collecting and analyzing large environmental datasets to help address many of the most pressing environmental challenges we face today. I am incredibly fortunate to collaborate with amazing colleagues and clients in pursuit of creative solutions for monitoring and protecting our environment.

Alex Swain

Joe Watson

I find that field work is the best way to understand compliance issues. By seeing process operations firsthand, we can help EPA get to the root of issues and support the agency in determining the best ways to minimize waste generation and disposal across industrial sectors.

Joe Watson

Photo of Ben Young

Both companies and the public sector have to assess environmental tradeoffs in the face of limited resources. LCA is a great tool for assessing those tradeoffs and making choices consistent with values. By generating high-quality public data and LCA tools, we provide the underlying data necessary for effective decision-making.

Ben Young