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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:
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:
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.
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To view this form submission online, please follow the link below:
https://rentonwa.gov/form/one.aspx?
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