Loren represents regional and national companies at locations throughout the country in environmental regulation and litigation issues.

Loren’s environmental projects have involved hazardous waste and large multi-party toxics cleanup sites, including marine and freshwater sediment sites, landfills, and natural resource damages claims. He has also conducted extensive work obtaining permits for key facility operations. He has particularly deep knowledge of the following industries: manufactured gas facilities, regulated utilities, smelters and metals refineries, pesticide sites, and large area contamination sites.

Before entering private practice, Loren worked for the U.S. Environmental Protection Agency headquarters office as a senior policy economist. He received an agency merit award for excellent work on the development of the Agency’s hazardous waste program and its regulations.

Loren has been repeatedly recognized as one of the leading environmental lawyers in the Northwest. He is a respected leader in handling complex environmental litigation, and remediation and restoration projects under CERCLA and state “little Superfund” statutes. He helped to pioneer the successful use of technical, large-group mediation to secure more efficient resolution and cleanup of large sites impaired by hazardous substance releases. He has served as co-chair of the ADR process of one of the largest Superfund sites in the country located in the Pacific Northwest. He also has played a significant role in the development of Washington’s environmental regulatory system.


  • Bowdoin College  (A.B., magna cum laude, 1978)
    • Philosophy and Government (High Honors)
  • University of Oxford  (1984)
    • Postgraduate Study
  • Harvard University  (M.P.P., 1980)
  • Stanford University  (J.D., 1987)
    • Editor, Stanford Journal of Environmental Law

Bar Admissions

  • District of Columbia
  • Oregon
  • Washington

Court Admissions

  • U.S. Court of Appeals - Ninth Circuit
  • U.S. District Court – Western District of Washington
  • U.S. District Court – Eastern District of Washington
  • U.S. District Court – Oregon
  • U.S. Court of Appeals - D.C. Circuit

Professional Affiliations

  • American Bar Association
  • Washington State Bar Association
  • King County Bar Association
  • District of Columbia Bar Association
  • Oregon Bar Association

Honors & Awards

  • Recognition in Who’s Who Legal – Environment & Climate 2023, a publication of Lexology (2023)
  • Chambers and Partners – USA, Band 2 in Environmental Law (2005-2023)
  • The Best Lawyers in America©, a Best Lawyers® publication, recognition in Environmental Law and Environmental Litigation (2007-2024)
  • Super Lawyers, part of Thomson Reuters, Washington Super Lawyer (2006-2023)
  • The Legal 500, recognition in Environmental Litigation and Regulatory Law (2019-2023)
  • Who's Who Legal, part of Law Business Research Ltd., recognition in Environmental Law (2018-2022)
  • Lawdragon Green 500: Leaders in Environmental Law (2021-2024)