SEPA Water System Plan Checklist 20250128 Signed

Note: This SEPA Checklist is to review the potential environmental impacts of Port of Seattle adoption and Washington State Department of Health approval of SEA’s Water System Plan (Limited Update). A separate project-specific environmental review of each recommended capital improvement selected for design and construction would be conducted in compliance with applicable regulations and policies. A. BACKGROUND 1. Name of proposed project, if applicable: Approval and Adoption of the SEA Water System Plan (Limited Update) 2. Name of applicant: Port of Seattle (Port) 3. Address and phone number of applicant and contact person: Port of Seattle P.O. Box 68727 Seattle, WA 98168 Contact: Steve Rybolt, Senior Environmental Program Manager Telephone/Email: (206) 787-5527, Rybolt.S@portseattle.org 4. Date checklist prepared: January 28, 2024 5. Agency requesting checklist: Port of Seattle – SEPA File Number 2025-01 6. Proposed timing or schedule (including phasing, if applicable): Implementation of the Water System Plan Limited Update1 (or Plan update) at Seattle-Tacoma International Airport (SEA) is expected to occur as follows: • Washington State Department of Health (WDOH) approval of Plan update 2025 • SEA adoption of Plan update 2025 • Plan implementation period: 2025-2028 7. Do you have any plans for future additions, expansion, or further activity related to or connected with this proposal? If yes, explain. If the Plan is approved by WDOH, maintenance activities and projects at SEA would adhere to the Plan. The Port and the Federal Aviation Administration (FAA) are currently conducting an environmental review of the proposed Sustainable Airport Master Plan (SAMP)…
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