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Enclosure
cc: Bosair LLC / Owner(s)
September 21, 2020
David Freeman
SFA Architects
7195 Wagner Way, Ste 201
Gig Harbor, WA 98335
SUBJECT: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION
PR20-000190 BossAir Addition, LUA20-000161, ECF, SSDP, SA-A
Dear Mr. Freeman:
This letter is written on behalf of the Environmental Review Committee (ERC) to advise you that they have
completed their review of the subject project and have issued a threshold Determination of Non -
Significance-Mitigated with Mitigation Measures. Please refer to the en closed ERC Report, for a list of
the Mitigation Measures. Appeals of environmental determination are addressed in RMC 4-9-070R.
If you have any further questions, please call me at (425) 430-7219
For the Environmental Review Committee,
Alex Morganroth
Senior Planner
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
SIGNATURES:
Martin Pastucha, Administrator
Public Works Administrator
Date Anjela Barton, Fire Marshal
Renton Regional Fire Authority
Date
Kelly Beymer, Administrator
Community Services Department
Date Chip Vincent, Administrator Date
Community and Economic Development
Chair
ENVIRONMENTAL (SEPA) DETERMINATION OF
NON-SIGNIFICANCE - MITIGATED (DNS-M)
PROJECT NUMBER: LUA20-000161, ECF, SSDP, SA-A
APPLICANT: David Freeman, SFA Architects / 7195 Wagner Way, Ste 201, Gig Harbor, WA
98335 /davesfa@comcast.net
PROJECT NAME: BossAir Addition
PROJECT DESCRIPTION: The applicant is requesting Administrative Site Plan Review, Environmental (SEPA)
Review, and a Shoreline Substantial Development Permit to construct a 4,800 sq. ft. addition to an existing building. The subject project
site is located at 287 E Perimeter Road on the southeast side of the Renton Municipal Airport property (APN 0723059007). The
applicant has a ground lease agreement with airport for a section of land approximately 80,882 sq. ft. in size. The entire airport site
totals 167 acres in area and is located within the Medium Industrial (IM) zone. The applicant is proposing to expand their existing
multi-purpose aircraft hanger and corporate center for general aviation customers. The proposal includes the construction of a 4,800
sq. ft. addition to the existing 8,499 sq. ft. building facility that expands the area for maintenance offices and storage, company offices,
and flight training facilities. The addition would be located on the southwest side of the building and would include a new r olling door
system approximately 100 ft wide and 20 ft tall. The addition would be slightly taller than the existing building being added onto, but
shorter than the main building to the north. The addition would have a maximum height of approximately 35 feet above grade. No
parking would be removed as part of the proposal. In addition, no vegetation or trees would be removed as part of the proposal
according to the applicant. Access to the site would remain off of E Perimeter Road. According to COR Maps, the site is located within
a High Seismic Hazard Area as well as the Cedar River (Shoreline of the State) Reach A High-Intensity Shoreline Overlay district. A Flood
Hazard Area pursuant to the FEMA Flood Insurance Rate Maps (FIRM) is located on the subject site. The hazard area on the site , a
Special Flood Zone AE (base flood elevation determined), is classified as a 100-year flood plain. The FIRM maps indicate the base flood
elevation to be 26 feet Mean Sea Level (MSL). Due to the existing flood wall to the east of East Perimeter Rd, the proposed addition is
located outside of the 100-year floodplain area. The applicant submitted a stream assessment, floodplain map and data, geotechnical
report, and drainage report with the application.
PROJECT LOCATION: 289 E Perimeter Rd (APN 0723059007)
LEAD AGENCY: City of Renton
Environmental Review Committee
Department of Community & Economic Development
The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse
impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21C.030(2)(c).
Conditions were imposed as mitigation measures by the Environmental Review Committee under their authority of
Section 4-9-070D Renton Municipal Code. These conditions are necessary to mitigate environmental impacts identified
during the environmental review process. When the DNS-M becomes appealable, the appeal period will be 14 days.
DATE OF DECISION: September 21, 2020
DocuSign Envelope ID: 8AC0BCC4-38CC-49BF-993D-8D4EEDD86E1A
9/21/2020 | 4:02 PM PDT
9/21/2020 | 1:45 PM PDT9/21/2020 | 3:24 PM PDT
9/21/2020 | 3:54 PM PDT
DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT
Planning Division
1055 South Grady Way, 6th Floor | Renton, WA 98057 | 425-430-7200, ext. 2
www.rentonwa.gov
If you would like to be made a party of record to receive further information on this proposed project, complete this form
and return to: City of Renton, CED – Planning Division, 1055 So. Grady Way, Renton, WA 98057.
Name/File No.: PR20-000190 BosAir Addition / LUA20-000161, ECF, SSDP, SA-A
NAME:
MAILING ADDRESS: City/State/Zip:
EMAIL: ______ TELEPHONE NO.: ___
I prefer to receive project information and documents in hard copy via US mail
OF ENVIRONMENTAL DETERMINATION
ISSUANCE OF A DETERMINATION OF
NON-SIGNIFICANCE - MITIGATED (DNS-M)
POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION
DNSM: THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED
ACTION HAS PROBABLE SIGNIFICANT IMPACTS THAT CAN BE MITIGATED THROUGH MITIGATION MEASURES.
DATE OF NOTICE OF ENVIRONMENTAL
DETERMINATION:
September 21, 2020
PROJECT NAME/NUMBER: PR20-000190 BosAir Addition / LUA20-000161,
ECF, SSDP, SA-A
PROJECT LOCATION: 289 E Perimeter Rd (APN 0723059007)
APPLICANT/PROJECT CONTACT PERSON: David Freeman, SFA Architects / 7195 Wagner Way, Ste 201, Gig Harbor,
WA 98335 /davesfa@comcast.net
LOCATION WHERE APPLICATION MAY BE
REVIEWED:
Applicant documents are available online through the City of Renton
Document Center website. See also https://cutt.ly/oo3Opcp
PROJECT DESCRIPTION: The applicant is requesting Administrative Site Plan Review, Environmental (SEPA)
Review, and a Shoreline Substantial Development Permit to construct a 4,800 sq. ft. addition to an existing building. The sub ject
project site is located at 287 E Perimeter Road on the southeast side of the Renton Municipal Airport property (APN 0723059007).
The applicant has a ground lease agreement with airport for a section of land approximately 80,882 sq. ft. in size. The entire airport
site totals 167 acres in area and is located within the Medium Industrial (IM) zone. The applicant is proposing to expand their existing
multi-purpose aircraft hanger and corporate center for general aviation customers. The proposal includes the construction of a 4,800
sq. ft. addition to the existing 8,499 sq. ft. building facility that expands the area for maintenance offices and storage, company
offices, and flight training facilities. The addition would be located on the southwest side of the building and would includ e a new
rolling door system approximately 100 ft wide and 20 ft tall. The addition would be slightly taller than the existing building being
added onto, but shorter than the main building to the north. The addition would have a maximum height of approximately 35 feet
above grade. No parking would be removed as part of the proposal. In addition, no vegetation or trees would be removed as part of
the proposal according to the applicant. Access to the site would remain off of E Perimeter Road. According to COR Maps, the site is
located within a High Seismic Hazard Area as well as the Cedar River (Shoreline of the State) Reach A High -Intensity Shoreline Overlay
district. A Flood Hazard Area pursuant to the FEMA Flood Insurance Rate Maps (FIRM) is located on the subject site. The hazar d area
on the site, a Special Flood Zone AE (base flood elevation determined), is classified as a 100-year flood plain. The FIRM maps indicate
the base flood elevation to be 26 feet Mean Sea Level (MSL). Due to the existing flood wall to the east of East Perimeter Rd, the
proposed addition is located outside of the 100-year floodplain area. The applicant submitted a stream assessment, floodplain map
and data, geotechnical report, and drainage report with the application.
When the DNS-M becomes appealable, the appeal period will be 14 days.
NOTICE