Marcia E. Williams - Director
Marcia E. Williams brings a wealth of governmental and corporate experience to Gnarus Advisors. Marcia held senior management positions in multiple US Environmental Protection Agency (USEPA) offices during her 18 years with the agency. Her work in the private sector has included top-level positions at several distinguished firms.
As an expert on solid and hazardous waste, Marcia has played a significant role in the development, implementation and enforcement of federal and state regulatory programs. She has helped regulated entities establish and strengthen EHS management programs and increase the cost-effectiveness of their implementation. Marcia has also provided expert testimony in a wide range of litigation matters, including insurance coverage cases, contract disputes, CERCLA cost recovery actions, toxic tort cases, federal and state civil and criminal enforcement matters, and NAFTA cases.
At Gnarus, Marcia’s practice focuses on regulatory expert and litigation support, environmental performance assessment and improvement, strategic environmental counseling and policy support, and environmental business risk/opportunity evaluation and mitigation. She holds a BS in Math and Physics from Dickinson College and studied Math and Physics at the graduate level at the University of Maryland.

- Graduate Work, Math and Physics, University of Maryland
- BS, Math and Physics, summa cum laude, Phi Beta Kappa, Dickinson College
Marcia E. Williams
2029 Century Park East
Los Angeles, CA 90067
Phone: 424.703.3067
Mobile: 310.486.6520
Email: mwilliams@gnarusllc.com