Hayley Ventoza


Hayley Ventoza represents private and public sector clients in matters relating to their obligations under the Clean Water Act, Model Toxics Control Act, and Comprehensive Environmental Response, Compensation, and Liability Act. She successfully defends clients against citizen suits and enforcement actions by the Environmental Protection Agency and the Washington State Department of Ecology. Hayley also represents private and public sector clients in matters related to water rights, including validity, transferability, water right changes, and contamination of water sources.  Hayley is an experienced litigator at the administrative, state, and federal court levels.

During each year since 2021, Hayley has been selected to the Washington Super Lawyers Rising Stars list for environmental litigation.

Hayley currently serves on the board for the American Water Resources Association, Washington Section, a nonprofit organization focusing on water resources management in Washington and the Pacific Northwest. When not at work, Hayley enjoys spending time in her vegetable and flower gardens and enjoying the Pacific Northwest rocky beaches with her husband, daughter, and golden retriever.

Expand/Collapse All
  • Member, Washington Trial Defense Lawyers
  • Member, Washington Women Lawyers
  • Member, Ladder Down Class of 2020
  • Member, Parks and Recreation Board, City of Burien
  • Associate Attorney, Montgomery Scarp & Chait PLLC (2017-2020)
  • Criminal Defense Attorney / Public Defender (2013-2017)
  • Legal Intern, Allen Institute for Brain Science (2012-2013)
  • Rule 9 Extern, Federal Public Defenders in the Western District of Washington (2012)
  • Rule 9 Extern, Ronald A. Peterson Law Clinic (2012)
  • Grant and Contract Specialist, Fred Hutchinson Cancer Research Center (2005-2012)
  • J.D., Seattle University School of Law, 2013, Magna Cum Laude
  • B.S., Central Washington University at Highline College, 2010
  • Washington State Bar Association
  • U.S. District Court for the Western District of Washington
  • U.S. District Court for the Eastern District of Washington

Hayley loves to spend time working in her vegetable and flower gardens as well as reading, walking with her two dogs (Cedar & Rue), and enjoying her local community.