Our Staff

The Environmental Integrity Project is made up of a team of attorneys and analysts, as well as community outreach, communications, development, and administrative staff. Our team works out of Washington, DC, Texas, and remotely across the country to bring about our vision of a healthy regulatory and physical environment.


Eric Schaeffer
Executive Director

Eric has served as Executive Director since he co-founded the organization in 2002. Previously, Eric served as director of EPA’s Office of Civil Enforcement from 1997 to 2002, where he received a Presidential Rank Award, as well as the John Marshall award from the Justice Department for his leadership in negotiating an industry-wide cleanup of petroleum refineries. Eric’s career at EPA began in 1990, and included an appointment as special assistant to the Deputy Administrator. Prior to his service at EPA, Eric worked as an environmental attorney for two and a half years at Morgan, Lewis & Bockius, and spent six years on Capitol Hill working for various members of Congress. Eric received his law degree from Georgetown University, and his B.A. from Vanderbilt University.

Ilan Levin
Associate Director

Ilan joined EIP in 2004, after practicing environmental law with a firm where he litigated water issues on behalf of landowners and conservation groups. He previously played a key role in developing and drafting Texas anti-pollution laws. Ilan received his law degree from University of Texas, and his B.A. from University of Texas at Austin.

Mary Greene
Deputy Director

Mary has been with EIP since 2013 after many years of teaching and practicing environmental law.  She has previously worked for the Florida Attorney General’s Office and the U.S. EPA where she specialized in complex CWA, RCRA, and CERCLA cases. Mary holds both a law degree and B.S.B.A. from University of Florida.

Tom Pelton
Director of Communications

Tom is also Co-Director of the EIP Center for Environmental Investigations. He joined EIP in 2014 after working as a journalist for The Baltimore Sun, where he was twice named one of the best environmental reporters in America by the Society of Environmental Journalists. He is author of the book, The Chesapeake in Focus: Transforming the Natural World, published by Johns Hopkins University Press. He hosts the weekly public radio program and podcast, The Environment in Focus. He is a graduate of Georgetown University (B.A.) and the University of Chicago (M.A.) Email: Tom@environmentalintegrity.org

Christine Hoch
Director of Administration and Development

Christine joined EIP in March of 2016. With 20 years of experience in nonprofit organizations, she previously worked as Director of Development at Children and Adults with Attention-Deficit Hyperactivity Disorder (CHADD). She founded the Center for Safer Wireless and served as Vice President of Finance and Development at the National Center for Family Philanthropy. Christine was also Executive Director of the Autism Society of America, Northern Virginia Chapter. For nine years Christine worked at the National Safety Council’s Environmental Health Center as a Senior Program Leader and Grants Administrator. She holds a BA in Economics and International Studies from American University.

Courtney Bernhardt
Director of Research

Courtney is also Co-Director of EIP’s Center for Environmental Investigations. She leads EIP’s team of dedicated analysts who develop our data-rich and ground-breaking reports. Her work ranges from managing our online database of coal ash groundwater pollution (www.Ashtracker.org), conducting citizen air monitoring in southwest Baltimore and on the Eastern Shore of Maryland, diving into spreadsheets of state and federal government data to identify the nation’s biggest polluters, and analyzing scientific articles and government records. Courtney joined EIP in 2013 after earning a Master of Environmental Management and a certificate in geospatial analysis from Duke University’s Nicholas School of the Environment. Before then, she spent several years working on CERCLA and CWA lawsuits as a paralegal at the U.S. Department of Justice’s Environment and Natural Resources Division. She holds a B.A. in public policy from St. Mary’s College of Maryland.

C. Esther Mbaka
Finance Director

Esther joined EIP in 2019. She previously worked as an accountant or consultant for nonprofits in Boston, New York City, and Washington. She holds a B.S. in Business Administration (with concentrations in Accounting, Marketing, and Economics).


Natalia Cabrera

Natalia joined EIP in 2019 and works on permitting and enforcement matters to protect the Chesapeake Bay. Prior to joining EIP, Natalia worked for the law firm Vorys, Sater, Seymour and Pease, out of its Cleveland, Ohio office, where she handled various litigation matters and assisted with environmental compliance and transactions. Natalia graduated cum laude from Boston College Law School in 2015. During law school, Natalia served as an executive editor of the Boston College Environmental Affairs Law Review and interned with U.S. EPA Region III, Office of Regional Counsel. Natalia graduated magna cum laude from Case Western Reserve University in 2012, with a B.A. in Economics and Environmental Studies.

Gabriel Clark-Leach
Senior Attorney

Gabriel Clark-Leach joined EIP as a Fellowship Attorney in 2010 after completing two post-graduate public interest clerkships with EIP. Prior to joining EIP, he was a law clerk at the Caddo Lake Institute, and Lowerre, Frederick, Perales, Allmon & Rockwell. Gabriel graduated from the University of Texas School of Law with honors where he was a member of the Texas Environmental Law Journal. He also graduated with a M.A. in Interdisciplinary Humanities from SUNY, Buffalo.

Colin Cox

Colin joined EIP in June of 2020. Prior to joining EIP, he spent three years on Lone Star Legal Aid’s Environmental Justice Team, focusing on air quality and civil rights issues along the Gulf Coast. He received his J.D. from University of Texas School of Law. While in law school, Colin worked for the Environmental Law Clinic, clerked for Texas Rio Grande Legal Aid, and served on the editorial board of the Texas Environmental Law Journal. He also holds a B.A. in Philosophy from Rice University.

Patton Dycus
Senior Attorney

Patton focuses on enforcement of environmental statutes and other environmental litigation.  Before joining EIP, he was a litigator at two large law firms in Atlanta, where he worked on lawsuits at the trial-court and appellate level in state and federal courts across the country. Patton graduated magna cum laude from the University of Georgia School of Law, where he served on the Georgia Law Review. He holds a B.A. from Rhodes College.

Leah Kelly
Senior Attorney

Leah Kelly joined EIP in 2011. Prior to joining EIP, she spent three years working at a small public interest oriented law firm in upstate New York, focusing on land use and environmental matters. Leah graduated from Boston College Law School in 2007 with a Certificate in Land Use and Environmental Law. During law school, Leah worked as an intern with Alternatives For Community and Environment, as a summer law clerk with the Southern Environmental Law Center, and as a student attorney with the Boston College Legal Assistance Bureau. She graduated cum laude from the University of Massachusetts, Amherst, in 2002 with a B.A. in English.

Adam Kron
Senior Attorney

Adam came on board with EIP in 2011. He previously worked as a staff attorney at Defenders of Wildlife in Washington, DC, where his work focused on freshwater aquatic species, climate change, and energy development. Adam has worked on a variety of water quality issues in Georgia and Alabama. He holds a J.D. from Harvard Law, where he served as managing editor of the Harvard Environmental Law Review, as well as a B.A. from University of Virginia.

Sylvia Lam

Sylvia joined EIP in 2015 and works primarily on litigation relating to Clean Water Act statutory and enforcement matters as well as the Freedom of Information Act. She holds a J.D. from the University of Southern California Gould School of Law. During law school, Sylvia interned for EIP, the Environmental Law Institute, U.S. EPA Region III’s Office of Regional Counsel, and the Land Law Section of the California Office of the Attorney General. Prior to law school, she worked for an environmental consulting firm, where she analyzed the implications of climate change on U.S. military operations. Sylvia also holds a B.A. in Political Science and East Asian Area Studies, with honors, from the University of Pennsylvania.

Sunny Lee

Sunny joined EIP in 2018 after receiving his J.D. and LL.M in Environmental Law from Georgetown University Law Center. During law school, he clerked at EIP, the GULC Institute for Public Representation, the North Carolina DOJ’s Environmental Division, and the Texas Civil Rights Project. He graduated from Davidson College in 2011 with a B.S. in Psychology.

Ryan Maher

Ryan works to reduce greenhouse gas emissions from the natural gas industry and landfills, with a focus on Maryland and West Virginia. He signed on with EIP in 2019 and operates out of the D.C. office. Ryan migrated south from Vermont, where he clerked for the Environmental Division of the Vermont Superior Court. Before clerking, he earned his J.D. at the University of Chicago Law School. He holds a B.S. in Environmental Science from the University of Vermont. 

Abel Russ
Senior Attorney

Abel works on litigation and research related to coal ash, agricultural sources of water pollution, and risk assessment.  He joined EIP in 2010 after graduating from Vermont Law School, where he served as an editor of the Vermont Journal of Environmental Law and as a clinician with the Environmental and Natural Resources Law Clinic. Prior to law school, Abel worked in the field of human health risk assessment as a research associate and as a toxicologist. He graduated from Clark University and received his M.A. in Environmental Science & Policy from Clark in 2000.

Lisa Widawsky Hallowell
Senior Attorney

Lisa has worked to reduce pollution from coal ash disposal sites in Pennsylvania and nationally since she joined EIP in January 2009. She graduated cum laude with a Certificate in Environmental and Natural Resources Law from Lewis & Clark Law School, where she was a student clinician with the Pacific Environmental Advocacy Center, served on the editorial board of the Environmental Law Journal, participated in the Environmental Moot Court Program, and was inducted into the Cornelius Honor Society.  Lisa graduated magna cum laude from Colgate University with a B.A. in Environmental Geography and a focus on Environmental Policy Analysis.


Mariah Lamm
Research Analyst

Mariah joined EIP in 2018. Prior to her work with EIP, she was a project manager for the Maryland Pesticide Education Network’s community outreach programs. She holds a B.A. in Environmental Studies with a minor in Public Health from Goucher College.

Keene Kelderman
Senior Research Analyst

Keene joined the Environmental Integrity Project in 2016. Before joining EIP, Keene biked across the country from Washington, D.C. to Seattle, WA, where he and two friends raised money for Conservation International. He has also earned a B.A. in Chemistry from St. Mary’s College of Maryland.

Benjamin Kunstman, E.I.T

Benjamin joined EIP in 2016, and works as a staff engineer. Benjamin’s focus area is environmental engineering, including research in water quality, air quality, and the energy sector. He previously has worked at the Environmental Biotechnology Group at the University of Michigan, as well as the National Renewable Energy Laboratories. Benjamin graduated with a M.S.E. in Environmental Engineering and a M.S. in Natural Resources from the University of Michigan, and also has a B.S. in Environmental Engineering from the University of Colorado. Email: benjamin@environmentalintegrity.org

Alexandra Shaykevich
Research Analyst

Alexandra joined EIP in 2019 and primarily supports our Oil and Gas Program. Prior to joining EIP, she worked as a Research Assistant for the Gas Exporting Countries Forum, an intergovernmental organization based in Doha, Qatar. Alexandra holds a M.S. in Environmental Sciences from the University of Copenhagen and a B.S. in Environmental Studies from the University of North Carolina at Chapel Hill.

Communications and Outreach

Ari Phillips

Ari joined EIP in 2018 after working as an environmental reporter and editor for ClimateProgress, Univision’s Project Earth, and Gizmodo Media’s Earther. He’s also freelanced for a number of outlets. He has masters degrees in journalism and global policy studies from the University of Texas at Austin and a B.A. from UC-Santa Barbara.

Lisa Graves-Marcucci
Pennsylvania Coordinator, Community Outreach

Lisa has been a community advocate for over 20 years. Since joining EIP in 2009, her efforts to protect human health from power plant and oil and gas pollution have grown from the community to the regional and national level. Lisa has conducted extensive reviews of permit files for EIP, helped to identify violations, and organized citizen testimony at numerous public hearings before local, state and national agencies. Lisa was invited to speak before the National Academy of Sciences in October of 2004 in Washington, D.C., advocating for more effective regulation of coal combustion waste disposal. Ms. Graves-Marcucci is a lifelong resident of Pittsburgh’s Monongahela Valley and is a graduate of Duquesne University.


Linda Solomon
Human Resources and Operations Administrator

Linda joined EIP in 2018 and has over 15 years of nonprofit administration and management experience. She has worked among teams on the leading edge of such issues as women’s equality in intercollegiate sports, disability rights, reproductive rights, identifying and eliminating food deserts, and revitalizing neighborhoods. For nine years, she was part of Social Compact, an organization that worked with the Washington, D.C., Office of Planning to revitalize D.C.’s historic Columbia Heights neighborhood by negotiating to bring retailers such as Harris Teeter, Target and TJX Companies into the District for the first time. She is working on her B.A. in Business Administration with a minor in Information Technology.

Griffin Bird
Legal Assistant

Griffin joined EIP in 2019. Prior to his work with EIP, Griffin interned with the media team at the Sierra Club and worked as a policy intern with the BlueGreen Alliance. He holds a B.A. in Public Policy and Environmental Policy from The College of William & Mary.

Vincent Bregman
Executive Assistant and Scheduler

Vincent previously worked at Earthjustice as a development services assistant in their San Francisco office. Prior to that, he was an Intake coordinator with Genentech, a biotech company. He graduated from U.C. Santa Cruz in June 2016 with a B.A. in history (European concentration) and minor in political science.

Of Counsel

Keri Powell

Keri N. Powell is the Director of Powell Environmental Law and works with the Environmental Integrity Project on investigations and legal issues concerning air pollution from the rapidly growing wood pellet industry. Keri is widely recognized as one of the nation’s leading Clean Air Act permitting experts, with 20 years of experience litigating state and federal cases with Earthjustice and New York Public Interest Research Group. From 2010 to 2016, Keri served as Senior Clean Air Act Attorney for U.S. EPA’s Region 4 office in Atlanta. In 2017, she started Powell Environmental Law and founded the Wood Bioenergy Project with Environmental Integrity Project. Keri holds a B.A. in Earth Science from Trinity University in San Antonio, Texas, and a J.D. from New York University School of Law. She is a native of Macon, Georgia, and calls Decatur, Georgia, her home.

Patrick Anderson

Patrick J. Anderson is an attorney with Powell Environmental Law who works with EIP in scrutinizing air pollution from the wood pellet industry. Patrick earned his J.D., magna cum laude, from Georgia State University College of Law in May 2017. He joined Powell Environmental Law and the Wood Bioenergy Project in late August 2017. While in law school, Patrick interned for GreenLaw and the U.S. Department of the Interior. In addition to his J.D., Patrick holds a BFA in Writing from The School of the Art Institute of Chicago.