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STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
Northwest Region Office
PO Box 330316, Shoreline, WA 98133-9716 • 206-594-0000
March 29, 2023
Clark Close, Principal Planner
Planning Division
City of Renton
1055 South Grady Way
Renton, WA 98057
Re: LivAway Renton Hotel Development
File# PR23-000050/LUA23-000066, Ecology SEPA# 202301212
Dear Clark Close:
Thank you for the opportunity to provide comments on the State Environmental Policy Act
(SEPA) notice of application utilizing the optional mitigated determination of nonsignificance
(ODNS/NOA-M) process for the LivAway Renton Hotel Development project. Based on review of
the checklist associated with this project, the Department of Ecology (Ecology) has the
following comments:
We recommend the following updates be made to the Environmental Checklist:
Section B, Environmental Elements; Subsection 3, Water; subsection b, Groundwater.
Based on Subsection 1 subsection c, “Groundwater was observed as shallow as 4 feet from
existing ground surface” at the proposed project property. Please provide information about
how deep the excavation will be conducted during the project, and if dewatering is needed to
address the shallow groundwater.
If dewatering will be conducted, please provide the details about permitting, water handling
and disposal.
Section B, Environmental Elements; Subsection 7, Environmental Health.
The proposed project is located on a site listed on the Model Toxics Control Act (MTCA)
Confirmed and Suspected Contaminated Sites List – Boeing Renton BFE Building (cleanup site ID
Clark Close
March 29, 2023
Page 2
14577, facility site ID 12083). Historically, groundwater and soil vapor at this cleanup site is
contaminated with petroleum hydrocarbons, metals and volatile organic compounds (VOCs).
The current data is available in the Revised Remedial Investigation Report, dated May 5, 2021.
Please add the contamination information in the checklist. Please 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 potential contaminated soil and groundwater encountered during
excavations, including sampling, containment, and disposal at a permitted facility.
•Impacts of the construction project on ongoing contaminant remediation at the site,
including procedures to prevent damage to site monitoring wells.
Thank you for considering these comments from Ecology. If you have any questions or would
like to respond to these comments, please contact Jing Song from the Toxics Celanup Program
at (425) 229-2565 or by email at jing.song@ecy.wa.gov.
Sincerely,
Kelli Price
SEPA Coordinator
Sent by email: Clark Close, cclose@rentonwa.gov
Uploaded to the online comment portal
ecc: Jing Song, Ecology