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Home My WebLink AboutEx14_Department_of_Ecology_CommentsCAUTION: This email originated from outside the City of Renton. Do not click links, reply or open attachments unless you know the content is safe. From:notification@civiclive.com To:Party of Record Subject:Party of Record/Public Comments 2022-06-22 07:58 AM(PST) Submission Notification Date:Wednesday, June 22, 2022 7:58:25 AM Party of Record/Public Comments 2022-06-22 07:58 AM(PST) was submitted by Guest on 6/22/2022 10:58:14 AM (GMT-08:00) Canada/Pacific Name Value NameFile:LUA22-000197 Gender Ms. Name Kelli Sheldon Address:PO Box 330316 CityState:Shoreline, WA Email nwsepa@ecy.wa.gov Phone 206-594-0014 Party of Record Only Thank you for the opportunity to provide comments on the State Environmental Policy Act (SEPA) notice of application utilizing the optional determination of nonsignificance (ODNS/NOA) process for the Blue Origin DaVinci Building project. Based on review of the checklist associated with this project, the Department of Ecology (Ecology) has the following comments: TOXICS CLEANUP PROGRAM Jing Song, (425) 229-2565, jing.song@ecy.wa.gov Section B, Environmental Elements; Subsection 3, Water; Subsection b, Ground Water: Data from monitoring wells at the adjacent property indicated depths to groundwater at 3 to 6 feet below ground surface (bgs). Is dewatering anticipated during soil removal and construction? If yes, please add dewatering protocols. Section B, Environmental Elements; Subsection 7, Environmental Health: The proposed project is located immediate north of one site listed on the Model Toxics Control Act (MTCA) Confirmed and Suspected Contaminated Sites List – Waste Management Rainer site (cleanup site ID 9556, facility site ID 52815133) at 316 SW 15th Street. The Waste Management Rainer site has petroleum hydrocarbons in soil and groundwater. Cleanup has been started for this site but not completed. Petroleum- contaminated soil (PCS) remained along the boundary between the Waste Management Rainer site and the proposed project property, with a diesel concentration up to 3,000 milligrams per kilogram (mg/kg) at 4 feet bgs (PI-N-4), and a heavy oil concentration up to 750 mg/kg at 6 feet bgs (NSW-2-6). The extent of the PCS was not yet determined. PCS may have extended to the SEPA project property. Shallow groundwater may also be contaminated with petroleum hydrocarbons. If subsurface work planned at the proposed project location has the potential to encounter soil and groundwater contamination, describe mitigation measures to address the following: EXHIBIT 14 DocuSign Envelope ID: 0C50F956-C05E-4AB3-B622-213397BAE02B Comments • Hazardous waste operations worker training, health/safety plan, and site control requirements, per WAC 296-843. • Management of contaminated soil encountered during excavations, including sampling, containment, and disposal at a permitted facility. • Management of contaminated ground water, if encountered, including sampling, containment, and disposal at a permitted facility. TOXICS CLEANUP PROGRAM Eva Barber, (360) 999-9593, eva.barber@ecy.wa.gov This proposed project is located in an area that may have been contaminated with heavy metals due to the air emissions originating from the old Asarco smelter in north Tacoma (visit Ecology’s Tacoma Smelter Plume map search tool: https://apps.wa.gov/ecy/dirtalert/). Soil contamination from the former Asarco smelter poses a risk to human health and the environment. Children are at especially high risk from direct exposure to contaminated soil. Construction workers, landscapers, gardeners, and others who work in the soils are also at risk. Ecology recommends that the lead agency include the following as conditions of approval, prior to the issuance of any site development permits or the initiation of grading, filling, or clearing: • Sample the soil and analyze for arsenic and lead following the 2019 Tacoma Smelter Plume Guidance. The soil sampling results shall be sent to Ecology for review. • If lead or arsenic are found at concentrations above the Model Toxics Control Act (MTCA) cleanup levels (Chapter 173-340 WAC); the owners, potential buyers, construction workers, and others shall be notified of their occurrence. The MTCA cleanup level for arsenic is 20 parts per million (ppm) and lead is 250 ppm. • If lead, arsenic and/or other contaminants are found at concentrations above MTCA cleanup levels, the applicant shall: 1) Develop soil remediation plan and enter into the Voluntary Cleanup Program with Ecology. For more information on the Voluntary Cleanup Program, visit Ecology website at: https://ecology.wa.gov/Spills-Cleanup/Contamination- cleanup/Cleanup-process/Cleanup-options/Voluntary-cleanup- program. 2) Obtain an opinion letter from Ecology stating that the proposed soil remediation plan will likely result in no further action under MTCA. The applicant shall provide to the local permitting agency the opinion letter from Ecology. 3) Prior to finalizing site development permits, provide to the local land use permitting agency “No Further Action” determination from Ecology indicating that the remediation plans were successfully implemented under MTCA. • If soils are found to be contaminated with arsenic, lead, or other contaminants, extra precautions shall 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 (Chapter 173-350 WAC). For information about soil disposal contact the local health department in the jurisdiction where soils will be placed. The link below provides a fact sheet that explains more how the arsenic and lead clean-up levels were set and why Ecology sees that they are protective for human health: DocuSign Envelope ID: 0C50F956-C05E-4AB3-B622-213397BAE02B https://fortress.wa.gov/ecy/publications/SummaryPages/1109095.html. Thank you for considering these comments from the Department of Ecology. If you have questions or would like to respond to these comments, please contact one of the commenters listed above. Prefer US Mail To view this form submission online, please follow the link below: https://rentonwa.gov/form/one.aspx? objectId=18657993&contextId=17174246&returnto=submissions DocuSign Envelope ID: 0C50F956-C05E-4AB3-B622-213397BAE02B June 22, 2022 Clark H. Close, Principal Planner Department of Community & Economic Development, Planning Division City of Renton 1055 South Grady Way, 6th Floor Renton, WA 98057 Re: Blue Origin DaVinci Building File# PR22-000181/LUA22-000197, Ecology SEPA# 202202914 Dear Clark H. Close: Thank you for the opportunity to provide comments on the State Environmental Policy Act (SEPA) notice of application utilizing the optional determination of nonsignificance (ODNS/NOA) process for the Blue Origin DaVinci Building project. Based on review of the checklist associated with this project, the Department of Ecology (Ecology) has the following comments: TOXICS CLEANUP PROGRAM Jing Song, (425) 229-2565, jing.song@ecy.wa.gov Section B, Environmental Elements; Subsection 3, Water; Subsection b, Ground Water: Data from monitoring wells at the adjacent property indicated depths to groundwater at 3 to 6 feet below ground surface (bgs). Is dewatering anticipated during soil removal and construction? If yes, please add dewatering protocols. Section B, Environmental Elements; Subsection 7, Environmental Health: The proposed project is located immediate north of one site listed on the Model Toxics Control Act (MTCA) Confirmed and Suspected Contaminated Sites List – Waste Management Rainer site (cleanup site ID 9556, facility site ID 52815133) at 316 SW 15th Street. The Waste Management Rainer site has petroleum hydrocarbons in soil and groundwater. Cleanup has been started for this site but not completed. Petroleum-contaminated soil (PCS) remained along the boundary between the Waste Management Rainer site and the proposed project property, with a diesel concentration STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Northwest Regional Office  PO Box 330316  Shoreline, Washington 98133-9716 (206) 594-0000 711 for Washington Relay Service  Persons with a speech disability can call 877-833-6341 DocuSign Envelope ID: 0C50F956-C05E-4AB3-B622-213397BAE02B Clark H. Close June 22, 2022 Page 2 up to 3,000 milligrams per kilogram (mg/kg) at 4 feet bgs (PI -N-4), and a heavy oil concentration up to 750 mg/kg at 6 feet bgs (NSW -2-6). The extent of the PCS was not yet determined. PCS may have extended to the SEPA project property. Shallow groundwater may also be contaminated with petroleum hydrocarbons. If subsurface work planned at the proposed project location has the potential to encounter soil and groundwater contamination, describe mitigation measures to address the following:  Hazardous waste operations worker training, health/safety plan, and site control requirements, per WAC 296-843.  Management of contaminated soil encountered during excavations, including sampling, containment, and disposal at a permitted facility.  Management of contaminated ground water, if encountered, including sampling, containment, and disposal at a permitted facility. TOXICS CLEANUP PROGRAM Eva Barber, (360) 999-9593, eva.barber@ecy.wa.gov This proposed project is located in an area that may have been contaminated with heavy metals due to the air emissions originating from the old Asarco smelter in north Tacoma (visit Ecology’s Tacoma Smelter Plume map search tool: https://apps.wa.gov/ecy/dirtalert/). Soil contamination from the former Asarco smelter poses a risk to human health and the environment. Children are at especially high risk from direct exposure to contaminated soil. Construction workers, landscapers, gardeners, and others who work in the soils are also at risk. Ecology recommends that the lead agency include the following as conditions of approval, prior to the issuance of any site development permits or the initiation of grading, filling, or clearing: • Sample the soil and analyze for arsenic and lead following the 2019 Tacoma Smelter Plume Guidance. The soil sampling results shall be sent to Ecology for review. • If lead or arsenic are found at concentrations above the Model Toxics Control Act (MTCA) cleanup levels (Chapter 173-340 WAC); the owners, potential buyers, construction workers, and others shall be notified of their occurrence. The MTCA cleanup level for arsenic is 20 parts per million (ppm) and lead is 250 ppm. • If lead, arsenic and/or other contaminants are found at concentrations above MTCA cleanup levels, the applicant shall: DocuSign Envelope ID: 0C50F956-C05E-4AB3-B622-213397BAE02B Clark H. Close June 22, 2022 Page 3 1) Develop soil remediation plan and enter into the Voluntary Cleanup Program with Ecology. For more information on the Voluntary Cleanup Program, visit Ecology website at: https://ecology.wa.gov/Spills- Cleanup/Contamination-cleanup/Cleanup-process/Cleanup- options/Voluntary-cleanup-program. 2) Obtain an opinion letter from Ecology stating that the proposed soil remediation plan will likely result in no further action under MTCA. The applicant shall provide to the local permitting agency the opinion letter from Ecology. 3) Prior to finalizing site development permits, provide to the local land use permitting agency “No Further Action” determination from Ecology indicating that the remediation plans were successfully implemented under MTCA. • If soils are found to be contaminated with arsenic, lead, or other contaminants, extra precautions shall 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 (Chapter 173-350 WAC). For information about soil disposal contact the local health department in the jurisdiction where soils will be placed. The link below provides a fact sheet that explains more how the arsenic and lead clean- up levels were set and why Ecology sees that they are protective for human health: https://fortress.wa.gov/ecy/publications/SummaryPages/1109095.html. Thank you for considering these comments from the Department of Ecology. If you have questions or would like to respond to these comments, please contact one of the commenters listed above. Sincerely, Kelli Sheldon SEPA Coordinator Sent by email: Clark H. Close, cclose@rentonwa.gov ecc: Jing Song, Ecology Eva Barber, Ecology DocuSign Envelope ID: 0C50F956-C05E-4AB3-B622-213397BAE02B