SEPA DETERMINATION OF NON-SIGNIFICANCE (DNS) OF PROPOSED ACTION
 
Seattle-Tacoma International Airport (Sea-Tac Airport)
North Satellite (NSAT) Terminal Expansion
 
The Port of Seattle has completed an environmental analysis, including review of pertinent and available environmental information and preparation of a State Environmental Policy Act (SEPA) Checklist for the North Satellite Terminal Expansion project. 
 
Description of Proposed Project Action:
Renovate and expand the existing 91,500 square foot (213,500 gross square feet) North Satellite Terminal footprint to 154,500 square feet (395,000 gross square feet). This project includes the following:

• Seismic reinforcement;
• Renovation of all impacted infrastructure (i.e. mechanical, electrical, lighting, plumbing, data, communications and security systems);
• Optimization of existing twelve airplane gates and addition of eight new airplane gates in the 63,000 square foot building expansion footprint (181,500 gross square feet), for a total of twenty contact gates;
• Construction of the rooftop shell for AAG’s Board Room as a tenant improvement;
• Vertical circulation (i.e. elevator and stair) in the expansion area to support dual-door aircraft operations;
• Construction of in-flight service and ramp operations offices; and
• Improve and increase the number of passenger amenities (i.e. more conveniently located and enlarged public restrooms, charging stations for electronic devices, voice paging system, etc.).


Location of Proposed Action: The project will be located at Seattle-Tacoma International Airport, within the airport’s fence line. The physical address is 17801 Pacific Highway South, Seattle, WA 98158.

Lead Agency: Port of Seattle (SEPA File Number 14-11)

Determination: The Port of Seattle has completed an environmental evaluation including review of the proposed North Satellite Terminal Expansion project, including review of pertinent and available environmental information, following the provisions of the Washington State Environmental Policy Act (SEPA) under Chapter 43.21C, Revised Code of Washington (RCW), Chapter 197-11, Washington Administrative Code (WAC), and Port Commission Resolution 3650, Port of Seattle SEPA Policies and Procedures. On December 8, 2014 as lead agency, the Port determined the proposed project would not have a probable significant adverse impact on the environment. Therefore, an Environmental Impact Statement (EIS) is not required under RCW 43.21C.030(2)(c). Any action to set aside, enjoin, review, or otherwise challenge such action on the grounds of noncompliance with the provisions of Chapter 43.21C RCW (State Environmental Policy Act) shall be commenced within 21 days from the date of last newspaper publication of the notice or be barred. Port Commission Resolution 3650 contains the procedures for appealing a SEPA decision of the Port of Seattle.

Supporting Information: Information used to reach this determination and applicable State laws and Port of Seattle polices, regulations, and procedures are available for public review at the Environmental Program Department, Second Floor, Pier 69, 2711 Alaskan Way, Seattle. Any questions relating to this determination or to the proposed actions should be referred to Steve Rybolt, Port of Seattle, Aviation Environmental Programs, P.O. Box 68727, Seattle, Washington 98168. Telephone 206.787.5527. Email Rybolt.S@portseattle.org. The document is also available for review online at http://www.portseattle.org/Environmental/Environmental-Documents/SEPA-N…. 
 
Public and Agency Comment: No action will be taken on the proposed project until after the 14-day public comment period expires on 4:00 PM on December 29, 2014, after which the port will (1) formally adopt this Determination of Non-Significance; (2) clarify or review the proposal; or (3) complete additional environmental analyses, as appropriate. The Port will accept public and agency comments until 4:00 PM on December 29, 2014. Please refer any questions relating to this determination or to the proposed actions to Steve Rybolt, Port of Seattle, Aviation Environmental Programs, P.O. Box 68727, Seattle, Washington 98168. Telephone 206.787.5527. Email Rybolt.S@portseattle.org or the Port of Seattle electronic mail Internet address at SEPA.p@porteattle.org. Include your mailing address when submitting comments to the electronic Internet address.
 
Appeals: This SEPA DNS determination may be appealed by filing a writ of review in King County Superior Court within twenty-one (21) days of the date the Port formally adopts this determination pursuant to Port of Seattle Resolution No. 3650 and RCW 43.21C.080.