Sarah E. Mack - Tupper Mack Wells PLLC

Sarah E. Mack

Listed in Best Lawyers since 2014
Phone: 206-493-2315

Sarah Mack’s practice focuses on water rights, project permitting and environmental review, and administrative and judicial appeals in the areas of natural resources, land use, and environmental law. Sarah represents developers of resorts, energy projects, municipal water supply facilities, and commercial projects throughout Washington. Sarah also advises public and private sector clients on proposed legislation relating to land use, water rights, and water supply planning. Sarah lectures and writes frequently on water resource law and policy issues.

Since 2000, Sarah has been included on each year’s Washington Super Lawyers® list. She has also achieved the prestigious “AV® Preeminent™” peer review rating in the Martindale-Hubbell® Law Directory.* 

*AV® Preeminent™ is a certification mark of Reed Elsevier Properties Inc., used in accordance with the Martindale-Hubbell certification procedures, standards and policies. See

University of California Santa CruzBA 1974University of California BerkeleyJ.D. 1982
Washington Water Policy Alliance

Case History

Cornelius v Dep't of Ecology, 344 P.3d 199 (2015) — In the first purported "as applied" constitutional challenge to the 2003 Municipal Water Law to reach the Supreme Court, Sarah Mack served as a Special Assistant Attorney General representing Washington State University, successfully defending the University's water rights for its Pullman campus.
R.D. Merrill Co. v. Pollution Control Hearings Bd., 137 Wn.2d 118, 969 P.2d 458 (1999) — Represented resort developer in water law appeal involving multiple issues including the public trust doctrine, relinquishment exemptions, and changes to unperfected groundwater permits--enabling development of Wilson Ranch, home of the award-winning Freestone Inn and Cabins in Mazama, Washington.
PUD No. 1 of Clark County v. Pollution Control Hearings Bd., 137 Wn.App. 150, 151 P.3d 1067 (2007) — Litigation counsel for Clark Public Utilities in successful defense of preliminary permit for groundwater testing under State Environmental Policy Act (SEPA) categorical exemption.
Tulalip Tribes v. Ecology, PCHB No. 01-106 (2002) — Litigation counsel for Snohomish River Regional Water Authority in successful defense of transfer of former industrial water right for municipal supply with innovative mitigation plan relying on TMDL model for the Snohomish River 

Office Location

2025 First Avenue, Suite 1100
Seattle, WA 98121
United States

Lawyer of the Year Awards

2017 Lawyer of the Year in Land Use and Zoning Law of the Seattle Metro Area
Sarah E. Mack has earned a Lawyer of the Year award for 2017!

Practice Areas

Administrative / Regulatory Law
Energy Law
Environmental Law
Land Use and Zoning Law
Litigation - Environmental
Litigation - Land Use and Zoning
Natural Resources Law
Water Law

Other Information

Gender: Female