TagNEPA(463)

Exhibit 3-2 from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects, prepared by Landrum & Brown, dated October 2024 (Draft). The map depicts the General Study Area boundary (shown in blue) encompassing the airport property (shown in gray) and surrounding neighborhoods, oriented within the street grid of the SeaTac/Des Moines area.

Exhibit 3-1 from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects, prepared by Landrum & Brown, dated October 2024 (Draft). The map depicts existing land use classifications across the airport environs, including surrounding municipalities such as SeaTac, Burien, Des Moines, Tukwila, Renton, Kent, Auburn, and Federal Way, with the airport property boundary delineated.

Exhibit 3-28 from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects, prepared by Landrum & Brown (October 2024 Draft), depicting 100-year and 500-year floodplains within the General Study Area. The map references FIRM panels effective 8/19/2020 and shows Des Moines Creek, near-term project locations, and airport property boundaries.

Exhibit 3-27 from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects (Draft, October 2024), prepared by Landrum & Brown. The map shows delineated and confirmed wetlands, streams, ditches, and a Wellhead Protection Area near the airport, including named features such as Lake Keba, Tub Lake, Iota Lake, and Stout Pond, overlaid on an aerial photograph of the study area.

A draft October 2024 exhibit from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan (SAMP) Near-Term Projects, prepared by Landrum & Brown. The aerial map (Exhibit 3-26, Detail Sheet #2) shows delineated and confirmed wetland boundaries, estimated wetlands, tributaries, and other Waters of the United States in the area south of the airport's runway environment, with a note that formal delineation was completed only in areas where impacts would occur.

Exhibit 3-25 from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects, prepared by Landrum & Brown, dated October 2024 (Draft). The aerial map identifies delineated, confirmed, and estimated wetland boundaries, streams, ditches, and Wellhead Protection Areas in the vicinity of Sea-Tac Airport, including named wetlands (e.g., Wetland G12, Wetland DMC2) and the West Fork of Des Moines Creek.

Exhibit 3-24 from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects, prepared by Landrum & Brown, dated October 2024 (Draft). The aerial overview map shows delineated wetlands, confirmed and estimated wetland boundaries, culverts, ditches, and wetland protection areas within and around the airport study area, with three detail sheet insets highlighted.

This map, from the Seattle-Tacoma International Airport Environmental Assessment for the Sustainable Airport Master Plan Near-Term Projects (Draft, October 2024), shows the percentage of population under age 18 by census block group within the General Study Area. Prepared by Landrum & Brown for the Port of Seattle, the map uses a purple color gradient to indicate concentrations ranging from under 10% to 30.1–40% children, with the airport property and study area boundary overlaid.

Port of Seattle infographic (August 2018, page 34) summarizing Sea-Tac Airport's economic impact on Federal Way, Washington, including 3,900 jobs, $440 million in economic activity, $183 million in total compensation, and a breakdown of Federal Way employment by sector showing services at 54% (16,660 jobs). The document notes that 13% of Federal Way's total jobs are supported by Sea-Tac Airport.

Port of Seattle infographic (August 2018, Page 32) showing Normandy Park's airport-driven economic activity for 2017, including 200 jobs, $15 million in economic activity, $7 million total compensation, 5% estimated GDP contribution, 100 airport employees living in Normandy Park, and $0.1 million in local taxes. Includes maps and charts showing where Normandy Park residents work and employment by sector, noting 18% of 840 total local jobs are supported by Sea-Tac Airport.