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From:notification@civiclive.com
To:Party of Record
Subject:Party of Record/Public Comments 2024-08-21 07:39 AM(PST) Submission Notification
Date:Wednesday, August 21, 2024 7:39:31 AM
Party of Record/Public Comments 2024-08-21 07:39 AM(PST) was submitted by Guest on
8/21/2024 10:39:25 AM (GMT-08:00) Canada/Pacific
Name Value
NameFile:LUA24-000202
Gender Company
Name Department of Ecology
Address:15700 Dayton Ave N
CityState:Shoreline, WA
Email nwsepa@ecy.wa.gov
Phone 206-594-0014
Party of Record Only
Comments
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 Ion Renton LLC Demolition Environmental Review project.
Based on review of the checklist associated with this project, the
Department of Ecology (Ecology) has the following comments:
Section B, Environmental Elements; Subsection 7, Environmental
Health. Please update Section 7(a)(1) of the SEPA Checklist with the
following information: The proposed project is located on a site listed
on the Model Toxics Control Act (MTCA) Confirmed and Suspected
Contaminated Sites List – Garden Plaza site (cleanup site ID 3049,
facility site ID 2475). Recent data collected in 2017 through 2021
currently indicated that the soil at the site is contaminated with
gasoline-range petroleum hydrocarbons (TPH-G), naphthalene,
carcinogenic polycyclic aromatic hydrocarbons (cPAHs), and
polychlorinated biphenyls (PCBs). Shallow groundwater is
contaminated with diesel- and heavy oil-range petroleum
hydrocarbons (TPH-D and TPH-O), dissolved arsenic, and vinyl
chloride. Groundwater was encountered at the site at depths from
approximately 5 to 14 feet below ground surface. Ecology issued a
No Further Action (NFA) determination for the Garden Plaza site in
April 2001, with a condition of a restrictive covenant. Ecology
rescinded the NFA determination after a periodic review in 2023,
based on the site soil and groundwater data collected in 2017 through
2021. Any activities that are prohibited by the 2001 restrictive
covenant need prior approval from Ecology. The SEPA Checklist and
the description of the proposed action indicated that soil will not be
excavated from or imported onto the property during the proposed
demolition of buildings and structures on the site. The February 2023
EXHIBIT 4
Docusign Envelope ID: FEBD9481-4859-4C81-802C-B1E9A63DCBBC
Period Review completed by Ecology noted the following: “No
Active monitoring wells were noted on the property. Monitoring
wells appear to have been decommissioned; however, no
decommissioning well reports were on file at Ecology.” Per the terms
of the 2001 restrictive covenant, information regarding these wells
(which are elements of the Remedial Action completed to date at the
site) must be provided to Ecology prior to initiation of the proposed
action as follows: • Evidence that all monitoring wells have been
properly decommissioned per Chapter 173-160 WAC;, or •
Identification and labeling of all existing monitoring wells, and
specification of procedures to protect these wells during the proposed
action. Please note, Ecology's approval is required before initiation of
the proposed activities per terms of the 2001 restrictive covenant. If
any soil on the site will be exposed or disturbed as part of the
proposed action, the following information must be provided to
Ecology for review and approval, prior to implementation of the site
work: • 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 proposed activities. 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 Cleanup Program at (425) 229-2565 or by email at
jing.song@ecy.wa.gov.
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To view this form submission online, please follow the link below:
https://rentonwa.gov/form/one.aspx?
objectId=20438252&contextId=17174246&returnto=submissions
Docusign Envelope ID: FEBD9481-4859-4C81-802C-B1E9A63DCBBC