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Home My WebLink AboutM_SEPA DNS_241023_v1.pdf SERVICE | EXCELLENCE | EQUITY 7812 S 124th St., Seattle, Washington 98178-4830 | p.425.204.4403 | f.425.204.4476 CAPITAL PLANNING AND CONSTRUCTION SEPA DETERMINATION OF NONSIGNIFICANCE (DNS) Hazen High School Modernization Proponent and Lead Agency: Renton School District (RSD) The official project file containing the SEPA checklist and related plans and documents is available for public review during normal business hours at the following location: Contact: Matthew Feldmeyer Executive Director of Capital Planning and Construction Renton School District 7812 South 124th Street Seattle, WA 98178 capitalprojects2@rentonschools.us Phone: (425) 204-4403 Description of Proposal: Renton School District (RSD) is proposing site and building improvements at the Hazen High School campus including the addition of a 500 square foot security vestibule near the existing main entrance, seismic upgrades, water heating system upgrades, replacement of the existing HVAC system, re-roofing of the main building, renovation of classrooms, commons and library, fencing, and various other interior improvements. Exterior improvements include a below grade electrical vault, the installation of synthetic turf and field lighting for a baseball and multipurpose field. The District is also proposing to install an underground geothermal heating system. An existing 10,000-gallon underground storage tank will be abandoned in place in accordance with Dept. of Ecology requirements. Location of Proposal: 1101 Hoquiam Ave NE, Renton, WA; King Co. Parcel Nos. 1023059278, 1023059057, 1023059201, 1023059277, 1023059094, 1023059292, 1023059084, 1023059072 Public and Agency Comments: This SEPA Threshold Determination is based on the public record, including comments from agencies, tribes, property owners, and other interested parties via mailings, publications and postings conducted by RSD. RSD issued notice of the SEPA Checklist for comment on September 19, 2024 requesting the submittal of comments by October 3, 2024. Comments were received from Department of Ecology, Department of Archaeology and Historic Preservation and the Duwamish Tribe. They have been integrated into the findings and mitigation measures. Hazen High School SERVICE | EXCELLENCE | EQUITY 7812 S 124th St., Seattle, Washington 98178-4830 | p.425.204.4403 | f.425.204.4476 CAPITAL PLANNING AND CONSTRUCTION FINDINGS OF FACT: 1. Earth - The high school campus is approximately 33.3 acres in size and relatively flat, with some slopes (15-25%) on the perimeter. This proposal will add 25.7% additional impervious surfaces, mostly due to the addition of synthetic turf to some of the athletic fields. There will be approximately 8,500 CY of cut and 1,200 CY of fill. RSD will also be installing a geothermal heating system under the surface level, the earth work for that portion of the project is not included in these calculations. Both a TESC plan and a Geotechnical Report have been prepared. The recommendations within the Geotechnical Report shall be followed. 2. Air – Best Management Practices will be employed to minimize dust-related emissions during construction. After construction, no additional emissions to air are anticipated to result from the proposal. 3. Water – There are no surface water bodies on the site. Stormwater design is based on the requirements of the 2022 City of Renton Water Design Manual. Best Management practices will be implemented. 4. Plants – The natural turf in the ball fields will be removed. The ball fields will receive new synthetic turf for the proposal. Per the Duwamish Tribe’s recommendation, only native plantings will be used in new landscaping. 5. Environmental Health – In 2011, a leaking 12,000-gallon heating oil underground storage tank (UST) was removed and replaced with a 10,000-gallon diesel UST. Subsequent investigations and remedial actions were carried out to assess and address the soil and groundwater conditions. The site remains listed by Ecology with an “awaiting cleanup” status due to incomplete characterization of the site, particularly, related to groundwater. The UST will be abandoned in place. The timing of future soil and/or groundwater cleanup is undetermined. The interior of the building is known to contain asbestos, PCBs, lead- containing paint and mercury-containing light bulbs. All these materials will be removed or remediated in accordance with federal, state and local regulations. Dept. of Ecology, Puget Sound Clean Air Agency and/or Washington State Department of Labor & Industries will be applied as necessary. 6. Noise – Temporary, short term noise impacts will occur typical of construction activity. Construction is anticipated to occur during the summer months of 2025 and between the hours of 7:00 am and 5:00 pm. Otherwise, school-related noise will be similar as existing. Noise typically heard during summer evenings from field use will also be audible during winter evenings due to extended hours for field use. 7. Land and Shoreline Use – The current use of the site is the existing Hazen High School. Adjacent uses are largely residential; there is a church to the south and playfields to the west. The use will not change as a result of the proposal, nor will the proposal increase impacts to nearby or adjacent properties. The site is not within a critical area or the vicinity of a shoreline of the state. No increase in staffing or enrollment is anticipated. 8. Aesthetics – This proposal includes new field lighting with poles that will vary from 60 to 80 feet in height. SERVICE | EXCELLENCE | EQUITY 7812 S 124th St., Seattle, Washington 98178-4830 | p.425.204.4403 | f.425.204.4476 CAPITAL PLANNING AND CONSTRUCTION 9. Light and Glare – No safety hazards or light or glare impacts are anticipated from the proposed field lighting. The lighting has been carefully designed to reduce lightspill to adjacent neighborhoods. New LED fixtures will be full cut-off type and shielded. The lights will be turned off each evening prior to 10 pm. 10. Recreation – The proposal will extend use of the ball fields later in the evenings during the dark and wet season, which will enhance the athletic and recreational uses for the school. 11. Historic and cultural preservation –The site is modeled as being of moderately low risk for discovery of artifacts. There will be an inadvertent discovery plan in place during construction at the request of the Duwamish Tribe and the Department of Archaeology and Historic Preservation (DAHP). Per the Duwamish Tribe’s recommendation, only native plantings will be used in new landscaping. 12. Transportation – Frontage improvements to be made include targeted ADA improvements and crossing upgrades along Hoquiam Ave NE and upgrades to a portion of NE 10th Street, including a new sidewalk. The proposal is not expected to affect traffic levels. Peak volumes would continue to occur in the morning and afternoon around bell times. THRESHOLD DETERMINATION: In reaching the Threshold Determination, the Responsible Official reviewed the completed environmental checklist, environmental information on file with RSD, City of Renton, and public/agency comments, relying on the information therein to exercise substantive authority under the Washington State Environmental Policy Act, pursuant to RCW 43.21C.060. This Determination of Nonsignificance (DNS) is issued under the Washington Administrative Code (WAC) 197-11-340 and pursuant to the criteria and procedures of WAC 197-11-300 through 197-11-340 and 197-11-390. The Responsible Official has determined that the proposal does not have a probable significant adverse impact with adherence to local, state, and federal regulations. 1. An Inadvertent Discovery Plan shall be implemented during all ground disturbing activity. If any cultural resources surveys or archaeological investigations occur, the Duwamish and Muckleshoot Tribe shall be notified in advance. 2. Project will utilize only native plant species in all areas feasible. If necessary, based upon project limitations, beneficial climate adapted drought tolerant species suitable for the Pacific Northwest region will be selected. 3. Field lights shall be turned off by 10:00 PM each evening. 4. The recommendations provided in the Sept. 2024 UST Closure Report prepared by PBS Engineering and Environmental LLC shall be followed for the UST abandonment. 5. Removal or abatement of hazardous building materials shall be completed following the recommendation provided in the PBS Hazardous Materials Survey Report. Any asbestos-containing materials that would be affected by demolition shall be abated in accordance with the applicable local, state and federal regulations. Any construction work impacting lead-containing paint will be performed according to Washington State Department of Labor & Industries regulations. Any fluorescent lights will be carefully recycled or disposed of in accordance with L&I regulations. CAPITAL PLANNINGentonANDCONSTRUCTION SERVICE |EXCELLENCE |EQUITY 6.If during construction,soils are found to be contaminated with arsenic,lead,or other contaminants,extra precaution will be taken to avoid escaping dust,soil,erosion,and water pollution during grading and site construction.Contaminated soils generated during site construction shall be managed and disposed of in accordance with state and local regulations,including the Solid Waste Handling Standards regulation (WAC Chapter 173-350) 7.Allimported fill must be clean fill utilizing an approved source. 8.A Construction General Stormwater permit,if required,is to be obtained prior to clearing,grading,or excavation activities. The lead agency will not act on this proposal for 14 days from issue date (issue date:October 28, 2024).Comments must be submitted by 5:00 pm on November 11,2024.Comments can be mailed or emailed to the address listed above.There is no agency appeal of this DNS;appeals are governed by RCW 43.21C.075. Responsible Official: Ve,CDi fl panneERE .Wb He,\o/244 /24 Matthew Feldmeyer,Executivé Director of Date Capital Planning &Construction Renton School District Published in the Seattle Times:October 28,2024 SERVICE |EXCELLENCE |EQUITY 7812 S 124St.,Seattle,Washington 98178-4830 |p.425.204.4403 |f.425.204.4476