Planning 2017-06-22 Item 4 - Foster High School Expansion and Birth to Kindergarten - Attachment D: SEPA Mitigated Determination of Nonsignificance by Tukwila School District (5/9/2017)

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Land and Shoreline Use 19. The properties are located in a neighborhood made up primarily of single family residential, with a mix of some high- density residential and institutional uses. To the west of the sites there are two apartment complexes and Foster Library. To the south, land uses are primarily single - family residential. To the east, land uses are primarily single - family residential and the Tukwila School District Administration Building. To the north of the sites, uses are primarily single- family residential and a large church property. 20. The sites are zoned as low density residential (LDR). A Public Recreation Overlay (PRO) covers a portion of the Foster High School and Showalter Middle School sites, and encompasses the Birth -to- Kindergarten site. 21. The Comprehensive Plan's Capital Facilities Chapter requires adequate public facilities to service development in the City, which would include facilities for public schools. The Tukwila Comprehensive Plan calls for growth, and new school facilities are needed to accommodate that growth. Capacity at the Foster High School site could grow (but is not forecasted for several years), and the proposed Birth -to- Kindergarten Center would provide service for up to 440 students. 22. Current employment at Foster High School and Showalter Middle School is 83 and 73, respectively, and will remain unchanged. The Birth -to- Kindergarten Center is expected to employ a staff of 46. Eighteen employees currently work at the onsite technology building, which will be demolished and relocated across the street at 4060 South 144th Street. As a result of this project, the overall school campus will have a net gain of 28 employees. Housing 23. There is no housing component to the projects. Aesthetics 24. Aesthetic enhancements include contextually sensitive building materials and increased interior and perimeter landscaping on all sites. The City of Tukwila's Board of Architectural Review will evaluate the architectural and site design attributes prior to approving the Conditional Use Permits. The projects will be required to adhere to the City's Design Standards. 25. Portions of Foster High School additions will be up to 35 feet; 5 feet above the maximum height allowed in the underlying Low Density Residential zone. Portions of the existing building are up to 65 feet in height. The applicant has applied for a zoning variance as part of the Conditional Use Permit. Light and Glare 26. Some light and glare are produced by lighting of the parking lot, pedestrian walkways, and sports fields after dark. Light fixtures will be shielded and cast downward. Lighting fixtures will be shielded and lighting will be cast downward to reduce light and glare impacts to adjacent properties. 27. Exterior lighting control system will utilize an astronomic timeclock based lighting control panel. To meet the Washington State energy code exterior lighting requirements, all exterior lights will be programmed to turn on at 100% light output from Dusk and will be automatically reduced to 50% light output during preselected time period or after midnight. 28. A photometric analysis was prepared which demonstrates that no more than 1 (one) footcandle of light will spill onto adjacent residential properties. Recreation 29. No recreational uses will be displaced. The existing baseball fields located on what will be the Birth - to- Kindergarten Center will be relocated to the Foster High School campus and will accommodate both baseball and softball uses. The existing tennis courts on the Foster High School campus will be repositioned onsite. Historic and cultural preservation 30. Foster High School was originally constructed in 1992 and has not had a significant renovation since. Showalter Middle School was originally built in 1936, with several additions and renovations since. 106