HomeMy WebLinkAboutC_KCWTD_v2_Comments
Department of Natural Resources and Parks
King Street Center, KSC-NR-0500
201 South Jackson Street
Seattle, WA 98104-3854
March 18, 2026 sent via email: mkerrihard@rentonwa.gov
KC OAP Ref No.: 2421
Jill Ding
City of Renton
1055 South Grady Way
Renton, WA 98057
Dear Jill Ding:
The King County Wastewater Treatment Division (WTD) has received the Notice of Application
and Proposed Determination of Non-Significance (DNS) for VMAC Renovation and Expansion
Project (LUA26-000048, PR26-000012) located at 12 Seahawks Way that proposes the
applicant is requesting Hearing Examiner Site Plan Review, Environmental (SEPA) Review, and
a Shoreline Substantial Development Permit for the renovation and expansion of the existing
Virginia Mason Athletic Center (VMAC). The project site totals approximately 728,627 square
feet (16.73 acres) and is located within the Commercial Office Residential (COR) zone and
Urban Design District C. The proposal includes approximately 120,000 square feet of interior
renovation work and approximately 79,520 square feet of building addition. Two (2) additions
are proposed. The east addition would total approximately 65,010 square feet and would be
three (3) stories with a height of approximately fifty feet (50') and the west addition would be
limited to a third story addition totaling approximately 14,510 square feet and would result in a
height increase to approximately fifty-eight feet (58'). Parking would be provided via the existing
surface parking lot which includes 295 on-site stalls and 45 off-site stalls (located off-site to
the south of the project site). Access to the site would remain via existing curb cuts off
Seahawks Way.
A King County facility, the Eastside Interceptor 4 and South Mercer Forcemain are located
within 500 feet of the project area. (See enclosed record drawings and one line drawings
showing the location of the facility in the project vicinity).
In order to protect these wastewater facilities during construction, WTD requires that City of
Renton submit preliminary design drawings for the project, so that WTD can assess its
potential impacts. Please send drawings to:
Local Public Agency Program
King County WTD, Engineering and Technical Resources
201 South Jackson Street, KSC-NR-0503
Seattle, WA 98104-3855
(206) 477-5414 | lpa.team@kingcounty.gov
March 18, 2026
Page 2 of 2
Please contact the Local Public Agency Program a minimum of 10 working days prior to
commencing any construction to allow time for staff to arrange for a King County Inspector to
be present during construction.
King County has a permanent easement for a sewer line on the proposed development
site, and must be assured the right to maintain and repair the sewer line. In the event that
the line must be relocated, King County must be notified. Please contact King County regarding
this easement, at:
Claire Christian
Property Asset Management Supervisor
King County Wastewater Treatment Division
201 South Jackson Street, KSC-NR-5505
Seattle, WA 98104-3855
(206) 477-5452 | claire.christian@kingcounty.gov
Thank you for the opportunity to review and comment on this proposal.
Sincerely,
Emmeline Aquino
Emmeline Aquino
Environmental Planner
cc: Mari Otto, Local Public Agency Coordinator
Kimberly Foreman, Property Asset Management
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