Don’s extensive environmental counseling practice enables him to represent his clients effectively in rulemakings, enforcement, and appellate litigation.

His environmental litigation, negotiation and enforcement experience allows him to evaluate complex and nuanced environmental issues that arise in environmental due diligence and the drafting of stock and asset purchase agreements. Moreover, his experience with many federal and state environmental programs – Resource Conservation and Recovery Act (RCRA) hazardous and solid waste, state medical and infectious waste, the Clean Water Act (CWA), the Clean Air Act (CAA), Prevention of Significant Deterioration (PSD), New Source Review (NSR), minor source permitting, federal and state reporting, and others – enables him to approach and settle environmental problems—including government and citizen suit enforcement—with a holistic approach that resolves environmental and health claims, economic issues, and toxic tort and reputational concerns. 

Facilitated by his broad experience, Don provides environmental and related services to the Pharmaceutical Product Stewardship Work Group and MED-Project, consortia of pharmaceutical manufacturing companies formed to respond to and comply with over 20 local and state household unwanted medicine and sharps take-back programs in California, Washington, New York, Massachusetts, Maine, and Oregon.

He is a former member of the firm’s Management Committee and previous chair of the firm’s Environmental Practice Group.

After law school, Don moved to Washington, DC to begin his almost 40-year career in the private practice of environmental law and environmental litigation. Don has built his practice around the principle that varied experience in a wide range of substantive areas of environmental law and in multiple types of representation allows him to deliver sophisticated, innovative and cost-effective environmental and related legal services to his pharmaceutical, oil and gas, mining and mineral processing, retail, and other clients. 


  • College of William and Mary  (B.A., summa cum laude, 1979)
    • Phi Beta Kappa
  • University of Michigan  (J.D., 1982)

Bar Admissions

  • District of Columbia

Professional Affiliations

  • American Bar Association, Section of Environment and Energy Resources
    • Co-Chair, Waste and Resource Recycling Committee

Honors & Awards

  • Recognition in Who’s Who Legal – Environment & Climate 2023, a publication of Lexology (2023)
  • Who's Who Legal, part of Law Business Research Ltd., recognition in Environmental Law (2017-2020,2022)
  • The Legal 500, recognition in Environmental Law (2014-2015; 2017)