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DETERMINATION OF NON-SIGNIFICANCE – MITIGATED
(DNS-M) MITIGATION MEASURES AND ADVISORY NOTES
PROJECT NAME: Washington State Auto Dealers Association Parking Lot
APPLICANT/CONTACT: Vicki Giles Fabre, 621 SW Grady Way, Renton, WA 98057
LAND USE FILE NUMBER: LUA18-000384, ECF, SPR-A
PROJECT SUMMARY: The applicant is requesting an Environmental Threshold
Determination (SEPA) for the construction of a standalone surface parking lot on a vacant site at 620 SW
12th St (APN 3340404805). The 14,500 square foot property is zoned Medium Industrial (IM) and is
located within the Automall Overlay District B. The property has a Comprehensive Plan Land Use
designation of Employment Area. The new parking stalls would serve as an auxiliary parking lot for
visitors to the Washington State Auto Dealers Association located on a parcel adjacent to the project
site. The proposed surface parking lot would consist of 32 parking spaces, two bio -retention areas, and
the associated landscaping. Twelve (12) stalls on the north side of the site would have direct access to
the alley. Access to the other 21 stalls would be via existing curb cuts on SW 12th St and the public alley
to the north of the site. A High Seismic Hazard is mapped on the project site. The applicant has proposed
the removal of one (1) significant tree. The applicant submitted a Geotechnical Report, a Drainage
Report, and an Arborist Report with the application.
PROJECT LOCATION: 621 SW Grady Way, Renton, WA 98057
LEAD AGENCY: The City of Renton
Department of Community & Economic Development
Planning Division
MITIGATION MEASURES:
1. The applicant shall provide an analysis demonstrating how the project complies with the following
landscaping requirement: interior parking lot landscaping. This analysis shall be provided to the
Current Planning Project Manager for review and approval at the time of construction permit
review.
2. An arborist shall be present on the site during construction of the off-site tree drip lines in order to
ensure proper techniques are used.
3. A lighting plan including fixture details shall be submitted at the time of Construction Permit review
for review and approval by the Current Planning Project Manager prior to construction permit
issuance.
4. The applicant shall submit a revised site plan that moves one of the two driveways to west end of
the site in order to create a center drive aisle that does not have a dead end in the parking lot. The
applicant may also provide justification for the current design and/or the reason(s) why moving the
driveway would not be feasible, subject to concurrence by the Current Planning Project Manager.
ADIVISORY NOTES:
The following notes are supplemental information provided in conjunction with the administrative
land use action. Because these notes are provided as information only, they are not subject to the
appeal process for the land use actions.
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
Page 1 of 4 LUA18-000384
ADVISORY NOTES TO APPLICANT
The following notes are supplemental information provided in conjunction with the administrative land use
action. Because these notes are provided as information only, they are not subject to the appeal process for
the land use action.
Planning:
(Contact: Alex Morganroth, 425-430-7219, amorganroth@rentonwa.gov)
1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless
otherwise approved by the Development Services Division.
2. Commercial, multi-family, new single family and other nonresidential construction activities shall be
restricted to the hours between seven o’clock (7:00) a.m. and eight o’clock (8:00) p.m., Monday through
Friday. Work on Saturdays shall be restricted to the hours between nine o’clock (9:00) a.m. and eight
o’clock (8:00) p.m. No work shall be permitted on Sundays.
3. Within thirty (30) days of completion of grading work, the applicant shall hydroseed or plant an
appropriate ground cover over any portion of the site that is graded or cleared of vegetation and where
no further construction work will occur within ninety (90) days. Alternative measures such as mulch,
sodding, or plastic covering as specified in the current King County Surface Water Management Design
Manual as adopted by the City of Renton may be proposed bet ween the dates of November 1st and
March 31st of each year. The Development Services Division’s approval of this work is required prior to
final inspection and approval of the permit.
4. A National Permit Discharge Elimination System (NPDES) permit is required when more than one acre is
being cleared.
5. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or
fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the
area defined by the drip line of any tree to be retained.
6. The applicant shall erect and maintain six foot (6') high chain link temporary construction fencing around
the drip lines of all retained trees, or along the perimeter of a stand of retained trees. Placards shall be
placed on fencing every fifty feet (50') indicating the words, “NO TRESPASSING – Protected Trees” or on
each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups
of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the
applicant shall provide supervision whenever equipment or trucks are moving near trees.
7. This permit is shall comply with the Bald and Golden Eagle Protection Act. The permitted is responsible
for adhering to the U.S. Fish and Wildlife Service National Bald Eagle Management Guidelines (2007) and
/or your U.S. Fish and Wildlife Service permit.
Development Engineering:
(Contact: Rohini Nair, 425-430-7298, rnair@rentonwa.gov)
1. See Attached Development Engineering Memo dated July 13, 2018
Building:
(Contact: Craig Burnell, 425-430-7290, cburnell@rentonwa.gov)
1. Recommendations of the geotechnical report must be followed as a condition of building permits.
Exhibit 8
DocuSign Envelope ID: A1A5CB90-0A7E-460D-AE8F-8B6BD4FFA2B8
ADVISORY NOTES TO APPLICANT
Page 2 of 4 LUA**-000***
DEPARTMENT OF COMMUNITY
& ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: 7/13/2018
TO: Alex Morganroth, Planner
FROM: Rohini Nair, Civil Plan Reviewer
SUBJECT: Utility and Transportation Comments for WSADA Paarking Lot
Parcel 3340404805
LUA 18-000384
I have reviewed the application for the WSADA Paarking Lot parking lot Parcel ID 3340404805 and have the following
comments:
EXISTING CONDITIONS
The site is approximately 0.33 acres in size and is rectangular in shape. The site is currently vacant without ant buildings.
Water Water service is provided by City of Renton. The site is in the Valley service area in the 196 hydraulic pressure
zone. There is an existing 8-inch City water main located in SW 12th Street (see Water plan no. W-2798). The
approximate static water pressure is 73 psi at the elevation of 28 feet. The site is located outside of an
Aquifer Protection Area.
Sewer Wastewater service is provided by City of Renton. There is an existing 12-inch PVC gravity wastewater main
located in alley north of the site (see City plan no. S-0145).
Storm There is an existing 12–inch storm drainage conveyance in the alley north of the site (see City plan no. SW-
3657). The existing property does not contain stormwater facilities. There is no existing stormwater main
within SW 12th Street.
Streets SW 12th Street is a Collector Arterial with an existing right of way (ROW) width of 60 feet as measured using
the King County Assessor’s Map. The existing pavement width is about 24 feet without curb, gutter and sidewalk.
North of the site is a fully paved public alley with 16 feet ROW width.
CODE REQUIREMENTS
WATER
1. The information provided with the land use application of the proposed parking lot does not include any building
or any water service requirements.
2. If landscape irrigation is proposed, a separate meter will be required for landscape irrigation per COR Standard
Plan 320.1. A double check valve assembly (DCVA) is required behind the meter per COR Standard Plan 340.8.
SEWER
1. The information provided with the land use application of the proposed parking lot does not include any building
or any sewer service requirements.
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ADVISORY NOTES TO APPLICANT
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SURFACE WATER
1. A geotechnical report, dated May 2018, completed by Migizi Group, Inc. for the site has been provided. Erosion
control measures will need to be in place prior to starting construction activities on the site. Geotechnical
recommendations need to be followed during construction.
2. A Preliminary Drainage Plan and Technical Information Report (TIR), revision date July 2018, was submitted by
Sitts & Hill Engineers, Inc. for the Land Use review. Based on the City of Renton’s flow control map, the site falls
within the Peak Rate Flow Control Standard area matching Existing Site Conditions and is within the Black River
Drainage Basin. The development is subject to Full Drainage Review in accordance with the 2017 Renton Surface
Water Design Manual (RSWDM). All nine core requirements and the six special requirements have been discussed
in the Technical Information Report.
3. The project does not propose a flow control facility since the increase of peak flow rate during the 100 year event
is less than 0.15 cfs.
4. The development is required to provide enhanced basic water quality treatment prior to discharge. The water
quality treatment is proposed by the use of two Filterra units.
5. Limited infiltration is proposed to meet the requirements of Core Requirement #9 on-site BMPS.
6. Stormwater facilities and on-site BMPS shall be designed in accordance with the RSWDM that is current at the
time of civil construction permit application. Final drainage plan and Technical Information Report (TIR) report
are required to be provided with the construction permit application.
7. Surface water system development fee is $0.687 per square foot of new impervious surface, but not less than
$1,718.00. This is payable prior to issuance of the construction permit.
TRANSPORTATION
1. The proposed development fronts SW 12th Street (a Commercial and Industrial access street) on the south and a
public alley on the north. The 4.5 feet wide dedication on SW 12th Street frontage shown in the plans is acceptable.
Based on the $100,000 project cost information provided by the applicant, the project meets the frontage
improvement exemption mentioned in RMC 4-6-060.D.1 which is the exemption for projects with valuation less
than $150,000. Therefore, the applicant is not proposing the construction of frontage improvements on SW 12th
Street.
2. The traffic memo for the project prepared by Heath & Associates mentioned that traffic impact analysis is not
triggered by the project.
3. Refer to City code 4-4-080 regarding driveway regulations.
a. The maximum width of any driveway shall not exceed 30-feet.
b. Driveways shall be located a minimum of 5-feet from property lines.
c. Maximum driveway slope is 8%.
4. Paving and trench restoration shall comply with the City’s Trench Restoration and Overlay Requirements.
GENERAL COMMENTS
1. Adequate separation between utilities as well as other features shall be provided in accordance with code
requirements.
a. 7-ft minimum horizontal and 1-ft vertical separation between storm and other utilities is required with
the exception of water lines which require 10-ft horizontal and 1.5-ft vertical.
b. The stormwater line should be minimum 5 feet away from any other structure or wall or building.
c. Trench of any utility should not be in the zone of influence of the retaining wall or of the building.
2. All civil construction permits for utility and street improvements will require separate plan submittals. All utility
plans shall confirm to the Renton Drafting Standards. A licensed Civil Engineer shall prepare the civil plans. Please
visit the Development Engineering Forms page for the most up-to-date plan submittal requirements:
http://rentonwa.gov/business/default.aspx?id=42473
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ADVISORY NOTES TO APPLICANT
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3. A landscaping plan shall be included with the civil plan submittal. Each plan shall be on separate sheets.
4. Fees quoted in this document reflect the fees applicable in the year 2018 only and will be assessed based on the
fee that is current at the time of the permit application or issuance, as applicable to the permit type. Please visit
www.rentonwa.gov for the current development fee schedule.
5. * An additional technology fee will be added to each fee marked with an asterisk (*).
DocuSign Envelope ID: A1A5CB90-0A7E-460D-AE8F-8B6BD4FFA2B8