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Alyssa A. Moir

Fax +1.206.370.6134

Alyssa is a partner in the firm’s Seattle office. Her practice focuses on regulatory compliance and litigation related to air quality, water resources, land use, greenhouse gas regulation, Washington’s model toxics control act and cercla. Alyssa works closely with agricultural, viticultural, beverage producers and energy clients to evaluate and secure water rights in both the near- and long-term. Alyssa also advises clients in permitting strategies for large infrastructure projects in a range of industries, including renewable energy facilities, natural gas-fired facilities, energy export facilities, data centers, and beverage producers. She has represented individuals, municipalities, and corporations before state regulatory agencies, administrative hearings boards and in state courts, working within the frameworks of the Washington state clean air act and the federal clean air act, the national environmental policy act, the Washington state environmental policy act, the Washington shorelines management act, and the clean water act.

Representative Experience

Water Quality and Water Rights

  • Advising a multinational corporation on complex water rights exchange to facilitate siting a multimillion dollar water bottling facility;
  • Advising private landowners on water rights concerns related to property exchanges;
  • Counseling developers in permitting strategies under the Clean Water Act.

Air Quality and Air Permitting

  • Defending air quality permits granted to three multinational corporations’ data centers under state and federal air quality regulations resulting in successful summary judgment before administrative hearings board; continued defense in superior court;
  • Advising on air quality matters related to various proposed energy export facilities including coal, LNG and LPG;
  • Counseling on air quality matters related to proposed water bottling facility.

CERCLA and MTCA Mediation and Cost Recovery

  • Represented small business owners in successful mediation to recover cleanup costs incurred under MTCA;
  • Represented multinational paper products corporation in successful mediation to allocate cleanup costs incurred under MTCA and CERCLA;
  • Continued advising to multinational paper products corporation in cleanup and sale of former mill property;
  • Represented a multinational corporation in negotiating a Consent Decree under MTCA and CERCLA governing cleanup of former aviation site.
  • Advising railroad on cost allocation for multiple cleanup sites governed by MTCA and CERCLA.

Land Use and Zoning

  • Advising multinational corporation on local land use and zoning requirements related to siting multimillion dollar water bottling facility;
  • Advising real estate developer on zoning and wetlands compliance
  • Advising private land owner in compliance concerns related to wetlands, critical areas, steep slopes, endangered species, drainage, and equestrian uses on Whidbey Island;
  • Advised private landowner in vegetation management and steep slope concerns within the City of Seattle;
  • Advised private landowner in re-zoning concerns within the City of Medina.

Professional Background

Prior to private practice, Alyssa was a judicial clerk to the Honorable Marlin J. Appelwick of the Washington State Court of Appeals, Division 1. During law school, Alyssa interned for the Environmental Protection Section of the City of Seattle, and worked for the Rural Development Institute, now Landesa, which advises developing countries in land law and policy.


  • Named to the Washington Rising Stars list, as selected by Super Lawyers, 2013-2016

Professional/Civic Activities

  • YMCA of Greater Seattle Camping Services Board of Managers Member, 2008-2015; continuing pro bono work
  • YMCA of Greater Seattle, Partners with Youth volunteer, 2004-present
  • King County Legal Services Clinic Volunteer, 2008-2009
  • Habitat for Humanity Volunteer, Tucson, Arizona, January 2001

Speaking Engagements

  • The (proposed) Clean Air Rule and Clean Power Plan: What Do They Mean for the Future of Carbon Regulation in Washington?, King County Bar Association Environmental Law and Land Use Section CLE, January 28, 2016
  • Air Quality Permitting Fundamentals, Northwest Environmental Conference and Trade Show, Business Competitiveness, Responsibility, and Success, December 4-5, 2012, Portland, Oregon
  • Guest Lecturer, University of Washington School of Marine Affairs, Environmental Law and Policy, November 2011, 2012, and 2013, Seattle, Washington