Alexandra Hamilton

Alexandra focuses on environmental issues across media involving regulation, compliance, enforcement and litigation.

Alexandra represents clients on matters arising under a wide range of federal environmental laws. She advises clients on the regulatory process, including preparing comments on rulemakings and guidance documents issued under the Clean Air Act (CAA) and Clean Water Act (CWA), counseling clients on regulatory compliance related to chemical and toxic substances, and assisting clients in the process of obtaining federal permits. Alexandra assists in representing clients in judicial challenges to rulemakings and federal permits before federal appellate and district courts. She also performs environmental due diligence in connection with the acquisition of energy and water infrastructure projects. Additionally, Alexandra has notable experience advising clients on civil and criminal enforcement defense matters and internal investigations under various environmental laws.

• Assists in advising electric utility regarding CERCLA remedial investigation and cleanup of river sediment site in major metropolitan area.
• Counsels clients in response to enforcement actions relating to various environmental laws, including the CWA, Safe Drinking Water Act (SDWA), Toxics Substances Control Act (TSCA), and Resource Conservation and Recovery Act (RCRA).
• Assists in representing clients in D.C. Circuit litigation over CAA rulemakings and guidance documents.
• Counseled an association of Fortune 100 companies dedicated to promoting the efficient and effective regulations under the CAA, including construction and operating permitting strategies under New Source Review (NSR) and Title V of the federal CAA and state programs.
• Advised trade association clients and prepared comments on CAA Section 112 Residual Risk and Technology Review rulemakings.
• Represented clients defending environmental permits challenged under the NEPAin federal district and appellate courts.
• Performs environmental diligence in connection with the development and acquisition of significant energy facilities and water treatment and supply systems.
• Advised clients on compliance with CWA regulatory requirements, including the National Pollutant Discharge Elimination System permit renewal process and advised clients on issues related to CAA emissions control requirements.
• Counseled clients on compliance with California’s Proposition 65.
• Maintains an active pro bono practice focused on post-conviction relief proceedings.

• Recommended for Environment: Litigation, Legal 500 United States, 2021-2024
• Selected as One to Watch for Environmental Law and Litigation – Environmental, The Best Lawyers in America, 2024
• Recognized as 2021 Environmental Group of the Year, Law360, January 2022
• 2021 and 2017 Chambers USA Environment Law Firm of the Year

• Member, Leadership Development Program, ABA Section of Environment, Energy, and Resources (SEER)