Sustainable Airport Master Plan (SAMP) Near-Term Projects (NTP) environmental review briefing and request for additional funds

The Port of Seattle requested $3.4 million in additional funding to complete environmental review studies required under federal (NEPA) and state (SEPA) law for planned near-term expansion projects at Sea-Tac Airport. The cost increase was driven by a two-year planning delay, expanded public engagement in multiple languages, additional technical analyses including aircraft noise, air quality, and environmental justice studies, and a decision to produce two separate review documents instead of one combined report. The contract with aviation environmental consulting firm Landrum & Brown brings the total project cost to $6.4 million.

Notes

This Commission agenda memorandum requests authorization for the Executive Director to amend the existing SAMP Environmental Review personal services agreement with Landrum & Brown, increasing the contract by $3,400,000 for a new total of $6,400,000. The additional funding is needed to complete NEPA and SEPA environmental review documentation due to a two-year planning extension, expanded public engagement, additional technical analyses, and the decision to prepare separate NEPA and SEPA documents. The memo outlines four primary reasons for the cost increase and notes the contract’s Small Contractors and Suppliers utilization rate exceeds the required seven percent.

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