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Nossaman LLP

Edward Roggenkamp


T 202.887.1410
F 202.466.3215
1666 K Street, NW, Suite 500
Washington, DC 20006

Ed Roggenkamp is an associate in the Firm’s Environment and Land Use Practice Group.  He is a seasoned litigator focused on resolving complex environmental matters.  His practice includes cost recovery actions under Comprehensive Environmental Response, Compensation and Liability Act, toxic tort claims, challenges to environmental impact reviews under NEPA and its state equivalents, and enforcement actions and citizen suits under the Clean Air Act, Clean Water Act, Resource Conservation and Recovery Act, Surface Mining Control and Reclamation Act, and other environmental statutes.

Mr. Roggenkamp has worked extensively with technical and scientific experts to understand and remediate sites contaminated by historic industrial operations ranging from manufactured gas plants to pharmaceutical, dye, and textile manufacturers. This experience has allowed him not only to help his clients avoid liability for cleanup costs, but also to enable clients that own contaminated sites to minimize the cost of remediating their property and proactively take steps to increase the likelihood of recovering remediation costs from other liable parties.

Additionally, Mr. Roggenkamp advises clients on the environmental aspects of corporate transactions such as indemnity provisions, hazardous waste remediation, permitting, and post-transaction environmental compliance. He has been involved in various aspects of renewable energy development, transactions involving traditional fossil-fuel-fired power plants, and climate change regulation. He has also defended clients in both formal and informal enforcement actions by the federal EPA and state and local regulators. His litigation experience allows him to understand and minimize environmental risk for his clients.

Following law school, Mr. Roggenkamp served as a judicial law clerk to The Honorable Michael H. Dolinger who was the U.S. Magistrate Judge for the Southern District of New York.  There he wrote and edited orders, motion decisions, reports and recommendations, jury instructions, and internal memoranda, as well as attended trials, settlement and scheduling conferences, and oral arguments.

Representative Work

  • Next Millennium Realty v. Adchem Corp.  Served as lead associate on complex CERCLA cost-recovery litigation, and the related case State of New York v. Next Millennium Realty. Responsible for every aspect of the case from pleadings through discovery, summary judgment and appeal. Obtained dismissal of all claims against Adchem Corporation and related family-owned corporations.
  • Extensive experience with hazardous waste sites and related litigation, including supervision of environmental consultants, compliance with state brownfield cleanup regulations, negotiation of cost-sharing and indemnity agreements with private parties and insurers.
  • Performed due diligence on numerous energy transactions involving traditional fossil-fuel fired power plants and a proposed offshore wind farm.
  • Served as counsel to local governments defending challenges to land-use actions.
  • Worked directly with clients on responses to environmental enforcement actions, citizen suits, and compliance audits, in order to resolve issues that could lead to environmental liability.

Awards & Honors

SAFE Energy Security Fellow, 2018.



J.D., Harvard Law School, 2009, cum laude; Semifinalist and Team Leader, National Environmental Law Moot Court; Article Editor, Harvard Environmental Law Review

M.A., Boston University School of Law, 2007

B.A., Yale University, 2000



District of Columbia

New York

U.S. Court of Appeals, Second Circuit

U.S. District Court, Eastern District of New York

U.S. District Court, Southern District of New York

Professional Affiliations

Securing America’s Future Energy (SAFE)

American Bar Association

New York State Bar Association

American Constitution Society

Awards & Honors

SAFE Energy Security Fellow, 2018.

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