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STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
Northwest Regional Office 3190 160th Avenue SE Bellevue, Washington 98008-5452 (425) 649-7000
711 for Washington Relay Service Persons with a speech disability can call (877) 833-6341
August 28, 2019
Matt Herrera
Department of Community & Economic Development
City of Renton
1055 South Grady Way
Renton, WA 98057
Re: Cedar River Apartments
File# PR19-000306/LUA19-000161, Ecology SEPA# 201904660
Dear Matt Herrera:
Thank you for the opportunity to provide comments on the Cedar River Apartments. Based on
review of the State Environmental Policy Act (SEPA) checklist associated with this Project, the
Department of Ecology (Ecology) has the following comments:
Ecology recommends the following revisions to the SEPA Checklist dated June 13, 2019:
Section A, Background; Subsection 8. Add the following documents to the list of
environmental information:
Opinion on Proposed Cleanup, Stoneway Concrete Renton, 1915 Maple Valley Hwy,
Renton, WA 98055; July 19, 2018; Washington State Department of Ecology
Environmental Covenant, King County Tax Parcel 172305-9026, Stoneway Concrete
Renton, Ecology Facility ID 62244377; July 16, 2019; Recorded Document
20190716000692, King County, Washington.
Section B, Environmental Elements; Subsection 2, Water, c, Water Runoff. Section 2c of
the Environmental Covenant prohibits stormwater infiltration facilities in the restricted area
identified in Exhibit C of the Covenant, which also requires decommissioning of the three 48-
inch diameter dry wells. Revise this section of the SEPA Checklist and the associated
stormwater management design to be consistent with the Covenant.
Section B, Subsection 7, Environmental Health. Revise this sections as follows:
Matt Herrera
August 28, 2019
Page 2
1) On July 19, 2018, the Washington Department of Ecology (Ecolotgy) issued an opinion
under the Voluntary Cleanup Program that no further remedial action would be needed
for the site upon completion of the proposed cleanup action. The cleanup has been
completed will be completed upon issuance by Ecology of a Site No Further Action
opinion letter, which will include the recorded Environmental Covenant as an attachment.
2) Cleanup of existing contamination has been completed. The project development and
design is subject to the restrictions of the recorded Environmental Covenant. No other
hazards are expected.
5) Standard precautions would be taken to ensure the safety of the work crew. The
construction manager would be contacted by a crew member immediately upon discovery
of a spill. The construction manager would then ensure that the spill is cleaned up in the
manner dictated by the chemical use instructions and would contact the appropriate
authorities. The recorded Environmental Covenant includes a Confirmational
Groundwater Monitoring Plan and an Operation, Maintenance, and Contingency Plan to
assure that protective measures are implemented during the operating life of the project.
Thank you for considering these comments from Ecology. If you have any questions or would
like to respond to these comments, please contact Michael Warfel from the Toxics Cleanup
Program at (425) 649-7257 or by email at michael.warfel@ecy.wa.gov.
Sincerely,
Katelynn Piazza
SEPA Coordinator
Sent by email: Matt Herrera, mherrera@rentonwa.gov
cc: Kenny Booth, AICP
David Maul, Rutledge Maul Architects
ecc: Michael Warfel, Ecology