As part of the firm’s environmental practice group, Erin advises clients on regulatory and compliance issues arising under various environmental laws. She previously served as an enforcement attorney with the US Environmental Protection Agency where she gained in-depth experience in administrative law and judicial litigation.

Erin’s experience involves complex Clean Air Act (CAA) mobile source and stationary source matters, including Title V permitting and New Source Review (NSR), and matters related to new source performance standards (NSPS). She also works on aftermarket defeat device, certification, and importation compliance.

Under the Clean Water Act (CWA), Erin has provided advice and counsel related to municipal and industrial  National Pollutant Discharge Elimination System (NPDES) wastewater and stormwater permitting. She also counsels on Oil Pollution Act compliance, from oil spill litigation to oil spill prevention regulation involving facility response plans (FRP) and spill prevention, control, and countermeasure (SPCC) rules. In addition, Erin assists with regulatory and compliance matters involving the National Environmental Policy Act (NEPA), and hazardous waste management under Resource Conservation and Recovery Act (RCRA) and relevant transboundary movement protocols. On corporate transactions, she applies her wide-ranging environmental experience and knowledge to environmental aspects of mergers and acquisitions. She also counsels on the integration of environmental justice into environmental, social, and corporate governance (ESG) strategies.

Erin is admitted to practice in the District of Columbia and California.


Honors & Recognitions

  • Recognized as 2021 Environmental Group of the Year, Law360, January 2022



  • Member, American Bar Association


Events & Speaking Engagements

  • June 13, 2023
    Environmental Compliance & Permitting for Utilities: Clean Water Act, EUCI Conference for Electric Utilities
  • February 14, 2023
    Measuring Environmental Impact: Strategies for Building the E in ESG, Strafford
  • June 16, 2022
    Basics of the Clean Water Act, 2022 Environmental Law Institute Summer School




JD, University of San Diego School of Law, 2014

BA, University of California, Santa Barbara, 2005


District of Columbia


Government Services

Attorney-Advisor, Office of Enforcement and Compliance Assurance, US Environmental Protection Agency

Congressional Liaison, Water, Pesticides and Toxics, Office of Congressional and Intergovernmental Relations, US Environmental Protection Agency

Law Clerk, Council on Environmental Quality, Executive Office of the President

Law Clerk, Environment and Natural Resources Division, US Department of Justice

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