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Sarah J. Wightman

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Click to Email: swightman@martenlaw.com

An environmental lawyer focusing on litigation, compliance, and risk management strategies for a wide array of clients—from Fortune 500 technology companies, to state governments, to local water systems—with particular emphasis on emerging contaminants, retail and consumer product issues, and related government and internal investigations.

Sarah Wightman’s practice focuses on litigating environmental and natural resource cases, advising clients on emerging contaminants, and representing manufacturers, developers, and contractors dealing with environmental concerns. Sarah represents public and private clients in administrative and judicial cases arising under the Clean Water Act, CERCLA, MTCA, RCRA, FIFRA, and other federal and state environmental laws and regularly helps her clients navigate complex legal issues such as drinking water contamination, environmental cleanup, hazardous waste regulations, product safety and stewardship, stormwater management, land use and zoning issues, and renewable energy development.

Sarah earned her Juris Doctor from the University of Michigan Law School, where she was the Editor-in-Chief of the Michigan Journal of Environmental and Administrative Law. While at the University of Michigan Sarah also earned a Master of Science in Natural Resources and Environment, specializing in environmental policy and planning. In addition, Sarah worked as a law clerk for the U.S. EPA, Earthjustice, National Wildlife Federation, Graham Sustainability Institute, and the cities of Flint and Detroit.

Prior to law school, Sarah wrote and managed a watershed-based plan as part of a multi-year, multimillion-dollar federal grant, ensuring the project's regulatory compliance with federal and state agencies. Sarah earned her Bachelor of Science, summa cum laude, from the University of Kentucky in natural resource conservation and management.


  • Associate, Marten Law LLP, Seattle (2016-present)
  • Legal Intern, City of Detroit Planning and Development Department, Detroit (2016)
  • Legal Researcher, University of Michigan Taubman College and City of Flint Department of Planning and Development, Ann Arbor (2015-2016)
  • Law Clerk, United States Environmental Protection Agency, Philadelphia (2013)


  • J.D., University of Michigan Law School (2015)
  • M.S., University of Michigan School of Natural Resources and Environment (2016)
  • B.S., Natural Resource Conservation and Management, University of Kentucky, summa cum laude (2010)

Admitted to Practice

  • Washington
  • U.S. District Court for the Western District of Washington

Professional Activities

  • Environmental and Land Use Section; Litigation Section – Washington State Bar Association
  • Women in the Environment


  • Co-Author, “Contaminants of Emerging Concern: A New Frontier for Hazardous Waste and Drinking Water Regulation,” Natural Resources & Environment (Spring 2018)
  • Co-Author, Chapter 8: Underground Storage Tanks, Real Property Deskbook (2017 Supplement)
  • Author, “Energy Developments in Washington,” Pratt’s Energy Law Report (February 2017)
  • Co-Author, “High Volume Hydraulic Fracturing in Michigan, Integrated Assessment Final Report,” Graham Sustainability Institute (September 2015)


  • “Emerging Contaminants: Per- and Polyfluoroalkyl Substances as a Case Study,” 30th Annual Texas Environmental Superconference, Aug. 2, 2018, Austin, TX