HomeMy WebLinkAboutSR_Walker Subaru ERC Report_wExhibits_180727.pdfCity of Renton Department of Community & Economic Development Environmental Review Committee Report
WALKER SUBARU LUA18-000305, ECF, SPR-A
Report of July 30, 2018 Page 4 of 8
ERC REPORT 18-000305
2. The applicant’s geotechnical engineer shall review the project’s construction and building permit plans to
verify compliance with the submitted geotechnical report. The geotechnical engineering shall submit a
sealed letter stating that he/she’s has reviewed the construction and buildings permit plans and in their
opinion the plans and specifications meet the intent of the report.
Additional mitigation measures related to Earth are noted below under Environmental Heath, as
contaminated have been identified on the site.
Mitigation Measures:
1. Project construction shall comply with the recommendations found in the submitted Geotechnical report
prepared by Migizi Group, dated April 17, 2018, or an updated report.
2. The applicant’s geotechnical engineer shall review the project’s construction and building permit plans to
verify compliance with the submitted geotechnical report. The geotechnical engineering shall submit a
sealed letter stating that he/she’s has reviewed the construction and buildings permit plans and in their
opinion the plans and specifications meet the intent of the report.
Nexus: SEPA Environmental Review, RMC 4-4-060 Grading, Excavation and Mining Regulations
2. Air
Impacts: It is anticipated that some temporary air quality impacts could be associated with site work and
building construction required to complete the proposed project at this site. Project development impacts
during construction activities may include dust as a result of the excavation and removal of contaminated
soils and the construction of the new building and associated parking, as well as exhaust from construction
vehicles, equipment and/or machinery. These emissions would be temporary and are anticipated to rapidly
dissipate. Dust control would be mitigated through the use of temporary erosion control measures, watering
or other best management practices as identified in the construction mitigation memo provided by the
applicant (see Exhibit 11).
No further site specific mitigation is recommended for the identified impacts from typical vehicle and
construction exhaust.
Mitigation Measures: No further mitigation recommended.
Nexus: N/A
3. Water
a. Wetlands
Impacts: A wetlands area is located just east of the subject site near Hwy 167. The wetlands is mostly
located in the WSDOT Hwy 167 right-of-way (ROW) with a small section (0.06 acres) located on the project
site. In October of 2017, a contractor hired by the property owner to clear vegetation at the east edge of the
site inadvertently continued clearing into the ROW and caused significant damage to the wetlands. The
wetlands was cleared of tree and shrubs and filled the wetlands was filled with wood chips due to the
downed trees being chipped in place. WSDOT opened a code case against the property owner in November
of 2017 and the two parties entered into an agreement for the restoration in December of 2017. Restoration
of the area will commence in late summer or early fall of 2018. Per the submitted plans, the wetlands will be
restored to match the function and classification of the wetlands prior to clearing. The wetlands restoration
would also include the small portion located outside of the ROW on the project site.
The report prepared by PBS was prepared in April of 2018 and is based on data gathered during a field visit
that took place on December 13, 2017. The wetland was delineated and classified by Katharine Lee, a
licensed Professional Wetland Scientist. Due to the disturbed nature of the wetlands caused by the illegal
clearing, the consultant supplemented the site visit with historic aerial photography in order to identify
City of Renton Department of Community & Economic Development Environmental Review Committee Report
WALKER SUBARU LUA18-000305, ECF, SPR-A
Report of July 30, 2018 Page 5 of 8
ERC REPORT 18-000305
vegetation types found within the wetlands prior to disturbance. The report identified the wetlands as a
Palustrine Forested/Scrub-Shrub Category III wetlands with a habitat score of 5.
Per RMC 4-3-050, the buffer required for a wetlands with this classification and habitat score is 100 feet with
a 15-foot setback. The applicant has proposed a reduced buffer of 75 feet. RMC 4-3-050 gives the
administrator the ability to authorize a 25% reduction in the wetlands buffer if the certain conditions are
met. The wetlands report includes a mitigation plan identifying the number and types of species proposed
for planting in the buffer. Proposed plantings in the buffer include variety of shrubs and trees with a wetland
seed mix to be spread across approximately 30,000 sq. ft. of the site (all within the 75-foot buffer). The
report notes that goal of the mitigation plan is to provide a buffer that protects and enhances the wetland
functions through planting and control of invasive species. The report concludes that the buffer would be a
significant environmental improvement when compared to the junk cars and lack of vegetation previously
present on the site. Due to the degraded condition of the wetland buffer prior to the clearing violation and
the anticipated environmental lift proposed with the re-planting plan, staff is supportive of the buffer
reduction, provided the restoration work is completed in accordance with the provided mitigation plan.
Mitigation Measures: All construction or restoration work related to the wetlands and wetlands buffer shall
be in accordance with the mitigation plan prepared by PBS, dated April of 2018, and submitted by the
applicant.
Nexus: SEPA Environmental Review, RMC 4-3-050 Critical Areas
b. Stormwater
Impacts: The applicant submitted a Technical Information Report (TIR) prepared by AHBL, dated May of
2018 (Exhibit 13) Based on the TIR, the project contains greater than 2,000 sq. ft. of replaced impervious
surface and therefore Full Drainage Review is required pursuant to the 2017 City of Renton Surface Water
Design Manual (RSWDW). Based on the City’s flow control map, this site falls within the Peak Rate Flow
Control Standard matching Existing Site Conditions. The project site is located within the Black River
Drainage basin. A Full Drainage Review was included in the report.
All nine core requirements and the six special requirements were discussed in the report. According to the
TIR, the project does not propose a flow control facility because the increase of peak flow rate during a
potential 100-year rain event is less than 0.15 cfs. Based on criteria in the RSWDW, the existing ground
surface is classified as an existing non-effective impervious area. As such, the applicant needs to provide an
updated Western Washington Hydrology Model (WWHM) demonstrating compliance with the exception
criteria outlined in Section 1.2.3.1.A at civil construction permit application.
The project is required to provide enhanced basic water quality treatment prior to discharge. The applicant
has proposed the use of a bio-retention cell for water in the east natural discharge basin that would
discharge to the wetlands, and a proprietary water quality filter system for the west natural discharge basin
that would connect to the existing 12-inch concrete stormwater main within East Valley Rd. The drainage
report does not identify any potential downstream flooding or erosion issues. On-site BMPs will be required
to help mitigate the new runoff created by the proposed improvements. A preliminary drainage plan,
including the application of on-site BMPs, was submitted by the applicant and identifies the use of basic
dispersion to mitigate the impervious roof area. The final drainage plan and drainage report must be
submitted with the civil construction permit application.
A Construction Stormwater General Permit from Department of Ecology is required since grading and
clearing of the site exceeds one acre. A Stormwater Pollution Prevention Plan (SWPPP) is required for this
site. All work proposed outside of the applicant’s property will require a p ermanent drainage easement to
be provided to the City and a temporary construction easement prior to any permits being issued.
It is anticipated that the City’s currently adopted 2017 City of Renton Surface Water Design Manual would
mitigate for any potential surface water impacts that could be generated by the project proposal, therefore
no further mitigation is recommended at this time.
City of Renton Department of Community & Economic Development Environmental Review Committee Report
WALKER SUBARU LUA18-000305, ECF, SPR-A
Report of July 30, 2018 Page 6 of 8
ERC REPORT 18-000305
Mitigation Measures: No further mitigation required.
Nexus: Not applicable
3. Trees and Vegetation
Impacts: The project site is primarily comprised of impervious, non-vegetated surface. Existing vegetation
in the Hwy 167 right-of-way adjacent to the project site, as well as a small portion of on the project site, was
illegally removed by a contractor prior to land use application. According to the SEPA checklist submitted by
the applicant, no additional trees or vegetation is proposed for removal as a result of the project. The
applicant submitted a conceptual landscape plan and wetlands mitigation plan proposing the installation of
42 new 2” caliper trees and a variety of native shrubs and groundcover across the site. The applicant has
proposed a reduced wetland buffer of 75 feet on the eastern portion of the site.
Mitigation Measures: No further mitigation required.
Nexus: Not applicable
4. Transportation
Impacts:
The applicant submitted a parking and traffic analysis prepared by Heath & Associates, Inc. The site
generated traffic volumes were calculated using data from the Institute of Transportation Engineers (ITE)
Trip Generation Manual, 10th Edition, (2017). Based on the calculations provided, the proposed
development would average 974 new daily vehicle trips. Weekday peak hour AM trips would generate 66
new vehicle trips, with 18 vehicles leaving and 48 vehicles entering the site. Weekday peak hour PM trips
would generate 85 new vehicle trips, with 34 vehicles entering and 51 vehicles exiting the site. As detailed in
the report the proposed project is not expected to lower the levels of service of the surrounding
intersections included in the traffic study. The closest intersection to the project site is the intersection of
East Valley Rd and SW 34th St, which according to the study has an existing level of services of A and B
depending on the direction of travel. The report does not anticipate a change in level of service for that
intersection or any others in the vicinity after completion of the proposed project. Staff has determined that
increased traffic created by the development would be adequately mitigated by payment of transportation
impact fees. Staff has determined that the development will have met City of Renton concurrency
requirements when complete (Exhibit 14).
Within the scope of work for the contamination clean up, the applicant indicates that contaminated soils
would stockpiled on the site for eventual removal via dump truck. According to the applicant, the
contaminated waste would be transported to one of two potential locations in Seattle. In order to ensure
that trucks do impact residential uses in the area, staff recommends as a mitigation measure that the
applicant be required to provide a truck route for the contaminated soils at the time of construction permit
submittal.
Mitigation Measures: The applicant shall submit a plan showing the proposed hauling route for trucks
transporting contaminated soil between the site and disposal facility. The plan shall be submitted with the
Civil Construction Permit application and subject to approval by the Current Planning Project Manager.
Nexus: SEPA Environmental Review.
5. Environmental Health
Impacts: Due to the site’s previous use as an auto junk yard, contaminated soils are present on the site and
the adjacent wetland. Environmental cleanup of the site will be overseen by Stemen Environmental and will
require coordination with multiple agencies including the Army Corps of Engineers, the Washington
Department of Ecology (DOE), WSDOT, and the City of Renton. The applicant submitted various documents
prepared by Stemen Environmental including Scope of Work, Site Assessment, and a Hazardous Materials
City of Renton Department of Community & Economic Development Environmental Review Committee Report
WALKER SUBARU LUA18-000305, ECF, SPR-A
Report of July 30, 2018 Page 7 of 8
ERC REPORT 18-000305
Survey Report (Exhibit 10). In order to expedite approval for the cleanup process, the applicant has elected
to enroll in the Department of Ecology’s Voluntary Cleanup Program (VCP) under the Washington Model
Toxics Control Act (MTCA). Under the VCP, the applicant would complete the cleanup per DOE’s “Guidelines
for Property Clean-Up under the Voluntary Cleanup Program” (Publication No. 08-09-044). After the cleanup
of the site is complete, the applicant would be required to submit documentation of the cleanup to DOE in
order to obtain an opinion letter.
During the investigative stage prior to the start of cleanup, Stemen Environmental conducted a number of
soil and water-quality tests. Between March 2017 and April 2018, a total of 48 soil borings were dug across
the site at depths ranging from one to ten feet. In addition, eight (8) ground groundwater monitoring wells
were installed throughout the property using a rotary auger drill rig. Both soil and water samples found the
presence of petroleum hydrocarbons and volatile organic compounds at depths of zero to two feet below
ground surface. Contaminated plume hot-spots extending to greater depths (up to 10 feet) below ground
surface were found at a few locations on the site.
Conventional construction equipment such as excavators, dump trucks, and bull dozers would be used to
conduct the site cleanup. After the two existing structures are demolished, the excavation and removal of all
contaminated surface and subsurface soils would be removed and temporarily stockpiled on-site. The
stockpiled soils would be tarped as necessary. Contaminated soils would be loaded into dump trucks and
taken to either the Waste Management Duwamish Reload Facility (Seattle, WA) or Republic Service’s waste
disposal facility (Seattle, WA). The applicant anticipates the removal and disposal of approximately 8,500
cubic yards of contaminated soil. All removed soils would be continuously sampled at a laboratory, width
the results sent back to Stemen Environmental within 48-hours to allow for corrective actions if other
contaminants are discovered. All on-site cleanup activities would be documented in order to provide to DOE
as required under the VCP guidelines. Upon completion of the proposed cleanup, the site would entered in
the VCP for the purpose of receiving a No Further Action (NFA) letter from DOE. Staff anticipates that there
could be potential impacts to public health during construction and after construction for site occupancy if
the cleanup is not completed per the DOE MTCA standards. In order to mitigate these potential impacts,
staff recommends as a mitigation measure that the applicant shall provide the Current Planning Project
Manager a No Further Action (or equivalent) letter from the voluntary cleanup program of the Washington
Department of Ecology (WDOE) prior to any occupancy of this site and prior to the issuance of a Temporary
or Final Certificate of Occupancy for the site
Mitigation Measures: Prior to any occupancy of this site and prior to the issuance of a Temporary or Final
Certificate of Occupancy for the site, the applicant shall provide the Current Planning Project Manager a No
Further Action (or equivalent) letter from the voluntary cleanup program of the Washington Department of
Ecology (WDOE) confirming compliance with the Model Toxics Control Act and any other applicable cleanup
law.
Nexus: SEPA Environmental Review, RCW 70.150D Hazardous Waste Cleanup – Model Toxics Control Act
E. Comments of Reviewing Departments
The proposal has been circulated to City Department and Division Reviewers. Where applicable, their comments
have been incorporated into the text of this report and/or listed under Exhibit 14 “Plan Review Comments to
Applicant.”
Copies of all Review Comments are contained in the Official File and may be attached to this report.
The Environmental Determination decision will become final if the decision is not appealed within the 14 -day
appeal period (RCW 43.21.C.075(3); WAC 197-11-680).
Environmental Determination Appeal Process: Appeals of the environmental determination must be filed in writing
together with the required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057, on
or before 5:00 p.m. on August 17th, 2018. RMC 4-8-110 governs appeals to the Hearing Examiner and additional
City of Renton Department of Community & Economic Development Environmental Review Committee Report
WALKER SUBARU LUA18-000305, ECF, SPR-A
Report of July 30, 2018 Page 8 of 8
ERC REPORT 18-000305
information regarding the appeal process may be obtained from the City Clerk’s Office, Renton City Hall – 7th Floor,
(425) 430-6510.
CITY OF RENTON
DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT
STAFF REPORT TO THE ENVIRONMENTAL REVIEW COMMITTEE
EXHIBITS
Project Name:
Walker Subaru Dealership
Project Number:
PR18-000212
Date of Meeting
July 30, 2018
Staff Contact
Alex Morganroth,
Associate Planner
Project Contact/Applicant
Matt Weber, AHBL
2215 N 30th St Suite 300
Tacoma, WA 98508
Project Location
3400 East Valley Road
Renton, WA 98057
The following exhibits are included with the ERC Report:
Exhibit 1 Environmental Review Committee Report
Exhibit 2 Neighborhood Detail Map
Exhibit 3 Site Plan
Exhibit 4 Elevations
Exhibit 5 Conceptual Landscape Plan
Exhibit 6 Drainage Plan
Exhibit 7 Utilities Plan
Exhibit 8 Traffic Study prepared by Heath & Associates, Inc (dated April of 2018)
Exhibit 9 Wetlands Assessment prepared by PBS (dated April of 2018)
Exhibit 10 Voluntary Clean-up Scope of Work prepared by Stemen Environmental (dated April 23,
2018)
Exhibit 11 Construction Mitigation Description
Exhibit 12 Geotechnical Report prepared by Migizi Group, Inc (dated April 27, 2018)
Exhibit 13 Technical Information Report (TIR) prepared by AHBL (dated May of 2018)
Exhibit 14 Traffic Concurrency Memo from Brianne Bannwarth, Development Engineering
Manager
Exhibit 15 Advisory notes to Applicant
4,800
400
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not be
accurate, current, or otherwise reliable.
None
4/24/2018
Legend
2720136
THIS MAP IS NOT TO BE USED FOR NAVIGATION
Feet
Notes
272
WGS_1984_Web_Mercator_Auxiliary_Sphere
Information Technology - GIS
RentonMapSupport@Rentonwa.gov
City and County Boundary
Parcels
300 ft
PROJECT
SITEEAST VALLEY ROADSW 34th St
3400 East
Valley Road
NEIGHBORHOOD DETAIL MAP
3330 East
Valley Road
3100 East
Valley Road
3051 East
Valley Road
3351 East
Valley Road
3401 East
Valley Road
3412 East
Valley Road
3600 East
Valley Road
3211 Talbot Rd S
Parcel
3023059062
(no address)
Parcel
3023059026
(no address)
Parcel
3023059124
(no address)SR 1671 INCH
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 2
T EAST VALLEY ROADS.R. 167SW 34TH ST 12%6%24 22 23
118
DISPLAY DISPLAY DISPLAY
DISPLAYDISPLAY 2
44
SERVICE/EMPLOYEESERVICE/EMPLOYEE10 DISPLAY
14
DISPLAY
DISPLAY
22
DISPLAY
20
DISPLAY
20
7
DISPLAY11 DISPLAY6
CUSTOMERSERVICE DRIVE
CAR
WASH
2
13
DISPLAY3
8CUSTOMERSIGN BIKERAMP UP6
3
DISPLAY
SERVICE/EMPLOYEESERVICE/EMPLOYEESERVICE/EMPLOYEEFENCE TO BE REMOVED
25'
27'
ROOF OVERHANG
ROOF
OVERHANG
30'
190'
5'
24'
24'
117.32'
TRASH/RECYCLING
ENCLOSURE
PARCEL #3023059027CONNECT TO EXISTING WALK
EXISTING UTILITY POLE
EXISTING FIRE HYDRANT
ARCHITECTURAL
STRUCTURE
ROOF OVERHANG
24'
95.5'
25'
18'
DEALERSHIP SIGN
REPLACE DRIVEWAY ACCESS
EXISTING TRANSFORMER
6' SIDEWALK
8' PLANTER
22' LANDSCAPE
EXISTING UTILITY POLE
EXISTING FIRE HYDRANT
80.65' R.O.W.
24'
20' (TYP.)
9' (TYP.)
EXISTING PAVEMENT
TO BE REMOVED
FENCE TO BE REMOVED
ASPHALT PAVEMENT (TYP.)
PARCEL #3023059090
9' (TYP.)
40' (TYP.)
9' (TYP.)
20' (TYP.)
24'
24'124.52'
TRASH/RECYCLING
ENCLOSURE
DISPLAY
TOWER
EXISTING BUILDING
TO BE DEMOLISHED
PROPOSED BUILDING
FOOTPRINT: 47,535 SF
TOTAL: 64,935 SF (NOT INCLUDING ROOFTOP PARKING)
250'
24.33'
WETLAND BUFFER
WETLAND
BOUNDARY
75'
WETLAND
BUFFER
137'
56.05'
24'
26'
50'
69.42'
150.3'
PARCEL #3023059067
EXISTING SIDEWALK
TO BE REMOVED
EXISTING CURB TO REMAIN
REPLACE
DRIVEWAY
ACCESS
30'
CONNECT TO
EXISTING
SIDEWALK
NEW DRIVEWAY
ACCESS
30'
BIKE RACK
41.37'
HALF
R.O.W.
REPLACE RAMP
REPLACE RAMP R.O.W1
2
3
4
TEL FAX www.ahbl.comWEBTELFAXwww.ahbl.comWEBTELFAXwww.ahbl.comWEB
2215 North 30th Street, Suite 300 Tacoma, WA 98403
253.383.2422TEL 253.383.2572FAX www.ahbl.comWEB
TACOMA SEATTLE SPOKANE TRI-CITIES
Know what's below.
before you dig.Call
R
3
STKMKWBEB
MAY 2, 2018
SITE PLAN REVIEW
2180100.10
601 ST. HELENS AVENUE
TACOMA, WA98402
ROGER HANSEN
HHJ
ARCHITECTS, PLLC
WALKER AUTO
DEALERSHIP
A PORTION OF THE NW 1/4 OF THE SE 1/4 OF SEC. 30, TWN. 23 N., RGE. 05 E. W.M.
CITY OF RENTON, KING COUNTY, WASHINGTON.
WALKER AUTO DEALERSHIP
DATE: April 27, 2018 FILENAME: Q:\2018\2180100\10_CIV\CAD\_Site Plan Review\2180100-SH-COVR.dwg
C0.1
1
SITEPLAN
N
GRAPHIC SCALE
0 30 60
1" = 30 FEET
15
SITE ADDRESS
3400 EAST VALLEY RD
RENTON, WA 98057
PARCEL #3023059067
PARKING SUMMARY
REQUIRED:
1 SPACE/5,000SF = 13 CUSTOMER SPACES
PROVIDED:
(REFER TO FLOOR PLAN FOR ROOFTOP PARKING)
14 CUSTOMER SPACES PROVIDED
55 SERVICE/EMPLOYEE SPACES PROVIDED
266 DISPLAY SPACES PROVIDED
335 TOTAL SPACES PROVIDED
05/01/2018
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 3
Exhibit 4
CRITICAL AREAS WITHIN WSDOT RIGHT OF WAY WILL
BE MITIGATED PER WSDOT STANDARDS.
PROPOSED
BUILDING
S.R.176 R.O.W.APPROXIMATE LOCATION
OF S.R. 167 SOUND BARRIER
WALL
1
2
3
4
TEL FAX www.ahbl.com WEBTELFAXwww.ahbl.com WEBTELFAXwww.ahbl.com WEB
2215 North 30th Street, Suite 300 Tacoma, WA 98403
253.383.2422 TEL 253.383.2572 FAX www.ahbl.com WEB
TACOMA SEATTLE SPOKANE TRI-CITIES
Know what's below.
before you dig.Call
R
2
SSKGKG
APRIL 30, 2018
SITE PLAN REVIEW
2180100.10
601 ST. HELENS AVENUE
TACOMA, WA98402
ROGER HANSEN
HHJ
ARCHITECTS, PLLC
WALKER AUTO
DEALERSHIP
A PORTION OF THE NW 1/4 OF THE SE 1/4 OF SEC. 30, TWN. 23 N., RGE. 05 E. W.M.
CITY OF RENTON, KING COUNTY, WASHINGTON.
WALKER AUTO DEALERSHIP
DATE: April 26, 2018 FILENAME: Q:\2018\2180100\40_LAN\CAD\SITE PLAN REVIEW\2180100-SH-PLANTING.dwg
L1.0
1
PRELIMINARY
PLANTING PLANN
GRAPHIC SCALE
0 30 60
1" = 30 FEET
15
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 5
TREES CODE BOTANICAL NAME COMMON NAME CONT QTY
AC ACER CIRCINATUM VINE MAPLE 2 GAL 17
AR ALNUS RUBRA RED ALDER 2 GAL 24
CW CORYLUS CORNUTA WESTERN HAZELNUT 2 GAL 10
MP MALUS FUSCA OREGON CRAB APPLE 2 GAL 9
PE PRUNUS EMARGINATA BITTER CHERRY 2 GAL 9
PD PSEUDOTSUGA MENZIESII DOUGLAS FIR 2 GAL 12
SS SALIX SITCHENSIS SITKA WILLOW 2 GAL 9
TP THUJA PLICATA WESTERN RED CEDAR 5 GAL 12
SHRUBS CODE BOTANICAL NAME COMMON NAME CONT QTY
CR CORNUS SERICEA RED TWIG DOGWOOD 1 GAL 15
MN MAHONIA NERVOSA OREGON GRAPE 1 GAL 29
PM2 POLYSTICHUM MUNITUM WESTERN SWORD FERN 1 GAL 31
RN ROSA NUTKANA NOOTKA ROSE 1 GAL 41
RP ROSA PISOCARPA CLUSTERED WILD ROSE 1 GAL 24
SD SPIRAEA DOUGLASII WESTERN SPIREA 1 GAL 17
SA SYMPHORICARPOS ALBUS COMMON WHITE SNOWBERRY 1 GAL 41
SOD/SEED CODE BOTANICAL NAME COMMON NAME CONT SPACING QTY
WB WETLAND BUFFER SEED MIX BUFFER SEED MIX HYDROSEED 29,041 SF
WW WETLAND SEED MIX WETLAND SEED MIX HYDROSEED 10,215 SF
PLANT SCHEDULE RESTORATION
TREES CODE BOTANICAL NAME COMMON NAME CONT QTY
AB ACER RUBRUM `BOWHALL`BOWHALL MAPLE 2" CAL.13
AP AMELANCHIER X GRANDIFLORA `PRINCESS DIANA`PRINCESS DIANA SERVICEBERRY 2" CAL.10
LS LIQUIDAMBAR STYRACIFLUA `SLENDER SILHOUETTE`COLUMNAR SWEET GUM 2" CAL.19
SHRUBS CODE BOTANICAL NAME COMMON NAME CONT QTY
CK CORNUS STOLONIFERA `KELSEYI`KELSEY DOGWOOD 2 GAL 99
RH RHODODENDRON X `HERBERT`HERBERT RHODODENDRON 2 GAL 24
TE THUJA OCCIDENTALIS `EMERALD`EMERALD ARBORVITAE 2 GAL 37
VO VACCINIUM OVATUM EVERGREEN HUCKLEBERRY 3 GAL 136
VD VIBURNUM DAVIDII DAVID VIBURNUM 2 GAL 187
GROUND COVERS CODE BOTANICAL NAME COMMON NAME CONT SPACING QTY
FL FRAGARIA CHILOENSIS `LIPSTICK`BEACH STRAWBERRY 1 GAL 24" o.c.979
LH LAWN MIX HYDROSEED HYDROSEED LAWN MIX HYDROSEED 11,471 SF
PM PRUNUS LAUROCERASUS MT. VERNON MT. VERNON LAUREL 1 GAL 24" o.c.1,090
PLANT SCHEDULE ON SITE
1
2
3
4
TEL FAX www.ahbl.com WEBTELFAXwww.ahbl.com WEBTELFAXwww.ahbl.com WEB
2215 North 30th Street, Suite 300 Tacoma, WA 98403
253.383.2422 TEL 253.383.2572 FAX www.ahbl.com WEB
TACOMA SEATTLE SPOKANE TRI-CITIES
Know what's below.
before you dig.Call
R
2
SSKGKG
APRIL 30, 2018
SITE PLAN REVIEW
2180100.10
601 ST. HELENS AVENUE
TACOMA, WA98402
ROGER HANSEN
HHJ
ARCHITECTS, PLLC
WALKER AUTO
DEALERSHIP
A PORTION OF THE NW 1/4 OF THE SE 1/4 OF SEC. 30, TWN. 23 N., RGE. 05 E. W.M.
CITY OF RENTON, KING COUNTY, WASHINGTON.
WALKER AUTO DEALERSHIP
DATE: April 26, 2018 FILENAME: Q:\2018\2180100\40_LAN\CAD\SITE PLAN REVIEW\2180100-SH-PLANTING.dwg
L1.1
2
PRELIMINARY
PLANT SCHEDULE
T EAST VALLEY ROADS.R. 167SW 34TH ST 12%6%24 22 23
118
DISPLAY DISPLAY DISPLAY
DISPLAYDISPLAY 2
44
SERVICE/EMPLOYEESERVICE/EMPLOYEE10 DISPLAY
14
DISPLAY
DISPLAY
22
DISPLAY
20
DISPLAY
20
7
DISPLAY11 DISPLAY6
CUSTOMERSERVICE DRIVE
CAR
WASH
2
13
DISPLAY3
8CUSTOMERSIGN BIKERAMP UP6
3
DISPLAY
SERVICE/EMPLOYEESERVICE/EMPLOYEESERVICE/EMPLOYEE2020201819212121212020
20
21 2121222221
2
0
74 LF 1
2
"
C
P
E
P
@
0
.
5
0
%
113 LF 12" CPEP @ 0.49%108 LF 12" CPEP @ 0.49%
88 LF 12" CPEP @ 0.50%
87 LF 12" CPEP @ 0.50%60 LF 12" CPEP @ 1.45%116 LF 12" CPEP @ 0.49%
48 LF 12" CPEP @ 0.30%
97 LF 12"
C
P
E
P
@
0
.
4
1
%
14 LF 18" CPEP @ 0.25%
DISCHARGE
ADJACENT TO
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132 LF 12" CPEP @ 0.30%78 LF 12" CPEP @ 0.30%78 LF
12"
CPEP
@
0
.30%80 LF 12" CPEP @ 0.30%41 LF 18" @ 0.25%400 LF
BIORETENTION CELL
2' WIDTH
0.5' PONDING DEPTH
WETLAND
BOUNDARY
WETLAND
BUFFER
75.00'
WETLAND
BUFFER
PROPOSED BUILDING
FINISHED FLOOR: 22.0
PROPRIETARY TREATMENT UNIT
FOR ENHANCED TREATMENT
IE: 15.60 18" (E)
IE: 12.59 18" (SW)
CB #12
RIM: 20.84
IE: 17.79 12" (S)
CB #4
RIM: 20.74
IE: 16.02 12" (NW)
IE: 16.02 12" (SW)
CB #6
RIM: 20.62
IE: 16.49 12" (N)
IE: 16.49 12" (SW)
CB #10
RIM: 20.58
IE: 18.53 12" (W)
CB#1
48" TYPE 2 CB
BIORETENTION
OVERFLOW STRUCTURE
RIM: 20.50
IE: 17.87 12" (E)
CB #2
RIM: 20.48
IE: 15.63 12" (N)
IE: 16.52 12" (E)
IE: 15.63 18" (W)
CB #9
RIM: 20.31
IE: 18.00 12" (W)
IE: 18.00 12" (E)
CB #8
RIM: 20.28
IE: 17.45 12" (E)
IE: 17.45 12" (W)
CB #14
RIM: 20.09
IE: 17.79 12" (W)
CB #11
RIM: 19.81
IE: 16.92 12" (E)
IE: 16.92 12" (N)
IE: 16.92 12" (W)
CB #13
RIM: 19.79
IE: 17.35 12" (E)
IE: 17.35 12" (W)
CB #3
RIM: 19.54
IE: 15.78 12" (NE)
IE: 15.78 12" (S)
CB #5
RIM: 19.43
IE: 16.25 12" (NE)
IE: 16.25 12" (SE)
CB #7
RIM: 18.93
IE: 16.88 12" (E)
IE: 16.88 12" (S)
OUTLET
IE: 17.50 12" (W)R.O.W1
2
3
4
TEL FAX www.ahbl.comWEBTELFAXwww.ahbl.comWEBTELFAXwww.ahbl.comWEB
2215 North 30th Street, Suite 300 Tacoma, WA 98403
253.383.2422TEL 253.383.2572FAX www.ahbl.comWEB
TACOMA SEATTLE SPOKANE TRI-CITIES
Know what's below.
before you dig.Call
R
3
STKMKWBEB
MAY 2, 2018
SITE PLAN REVIEW
2180100.10
601 ST. HELENS AVENUE
TACOMA, WA98402
ROGER HANSEN
HHJ
ARCHITECTS, PLLC
WALKER AUTO
DEALERSHIP
A PORTION OF THE NW 1/4 OF THE SE 1/4 OF SEC. 30, TWN. 23 N., RGE. 05 E. W.M.
CITY OF RENTON, KING COUNTY, WASHINGTON.
WALKER AUTO DEALERSHIP
DATE: April 27, 2018 FILENAME: Q:\2018\2180100\10_CIV\CAD\_Site Plan Review\2180100-SH-STRM-GRAD.dwg
C1.1
4
GRADING AND
DRAINAGE PLAN
N
GRAPHIC SCALE
0 30 60
1" = 30 FEET
15
1
-
1 NOT TO SCALE
BIORETENTION CELL
EARTHWORK QUANTITIES
CUT:600 CY
FILL:14,300 CY
NET: 13,700 CY IMPORT
NOTE:
THE ABOVE QUANTITIES ARE ESTIMATES ONLY
INTENDED FOR THE PERMITTING PROCESS.
DO NOT USE FOR BID PURPOSES. THE
QUANTITIES DO NOT HAVE STRIPPING,
COMPACTION, OR CUT OR FILL ADJUSTMENT
FACTORS APPLIED TO THEM.
NOTE: FILL MATERIAL SHALL BE STRUCTURAL
FILL PER GEOTECHNICAL ENGINEER'S
RECOMMENDATIONS. UP TO 20,000 CY OF
CONTAMINATED MATERIAL WILL BE REMOVED
FROM THE SITE. REFER TO SEPARATE
REMEDIATION PLAN.
PROJECT AREAS
PARCEL AREA: 247,713 SF (5.69 AC)
DISTURBED AREA: 209,808 SF (4.82 AC)
8'2'
1
31'
BOTTOM OF
BIORETENTION
CELL
OVERFLOW
ELEVATION
WASHED
ROCK
PERFORATED
UNDERDRAIN
BIORETENTION
SOIL MIX (BSM)
1.00
1.5'
1
3
CATCH BASIN
OVERFLOW
STRUCTURE
1
3
1'
GRAVEL
SECTION
WHEELSTOP
PARKING LOT
2'
05/01/2018
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 6
T EAST VALLEY ROADS.R. 167SW 34TH ST 12%6%PROPOSED BUILDING
FINISHED FLOOR: 22.0
SSCO #1
RIM: 21.95
IE: 18.50 6" (W)
SSCO #3
RIM: 21.95
IE: 18.50 6" (S)
SSCO #2
RIM: 21.88
IE: 18.44 6" (E)
IE: 18.44 6" (W)
SSCO #4
RIM: 20.66
IE: 17.15 6" (E)
IE: 17.15 6" (W)
IE: 17.15 6" (N)
SSCO #6
RIM: 21.25
IE: 13.36 6" (S)
IE: 13.36 6" (NW)
SSCO #5
RIM: 20.72
IE: 15.53 6" (E)
IE: 15.53 6" (N)
SSCO #7
RIM: 20.23
IE: 12.73 6" (SE)
2 LF 6" PVC @ 2.00%
2 LF 6" PVC @ 1.13%
105 LF 6" PVC @ 1.23%
131 LF 6" PVC @ 1.23%
176 LF 6" PVC @ 1.23%
47 LF 6" PVC @ 2.84%
50 LF 6" PVC @ 1.25%
CONNECT TO EXISTING WALK
EXISTING UTILITY POLE
EXISTING FIRE HYDRANT
18'
DEALERSHIP SIGN
EXISTING TRANSFORMER
6.00' SIDEWALK
8' PLANTER
22' LANDSCAPE
EXISTING UTILITY POLE
EXISTING FIRE HYDRANT
80.65' R.O.W.
EXISTING SIDEWALK
TO BE REMOVED
EXISTING CURB TO REMAIN
REPAIR ROADWAY AS
REQUIRED FOR UTILITY
CONNECTION 30'
CONNECT TO
EXISTING
SIDEWALK
WATER METER
FDC
PIV
WATER SERVICE CONNECTION
FIRE SERVICE CONNECTION
OIL/WATER
SEPARATOR
15.00' WATER EASEMENT (TYP.)
REPAIR ROADWAY AS
REQUIRED FOR UTILITY
CONNECTION
DOMESTIC SIDE SEWER CONNECTION
SEWER CONNECTION
FOR CAR WASH AND
SERVICE BAYS
10" DUCTILE
IRON WATER
MAIN (TYP.)
STORMWATER
BIO-RETENTION CELL
CONNECT TO
EXISTING
SEWER STUB
HYDRANT HYDRANT
R.O.WHYDRANT
HYDRANT
1
2
3
4
TEL FAX www.ahbl.comWEBTELFAXwww.ahbl.comWEBTELFAXwww.ahbl.comWEB
2215 North 30th Street, Suite 300 Tacoma, WA 98403
253.383.2422TEL 253.383.2572FAX www.ahbl.comWEB
TACOMA SEATTLE SPOKANE TRI-CITIES
Know what's below.
before you dig.Call
R
3
STKMKWBEB
MAY 2, 2018
SITE PLAN REVIEW
2180100.10
601 ST. HELENS AVENUE
TACOMA, WA98402
ROGER HANSEN
HHJ
ARCHITECTS, PLLC
WALKER AUTO
DEALERSHIP
A PORTION OF THE NW 1/4 OF THE SE 1/4 OF SEC. 30, TWN. 23 N., RGE. 05 E. W.M.
CITY OF RENTON, KING COUNTY, WASHINGTON.
WALKER AUTO DEALERSHIP
DATE: April 27, 2018 FILENAME: Q:\2018\2180100\10_CIV\CAD\_Site Plan Review\2180100-SH-UTIL.dwg
C1.0
3
UTILITY PLAN
N
GRAPHIC SCALE
0 30 60
1" = 30 FEET
15
SITE ADDRESS
3400 EAST VALLEY RD
RENTON, WA 98057
PARCEL #3023059067
05/01/2018
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 7
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 8
Full document
available in
Laserfiche
Submittals Folder
314 WEST 15TH STREET
VANCOUVER, WA 98660
360.695.3488 MAIN
866.727.0140 FAX
PBSUSA.COM
Critical Areas Report for the Dale Walker Property
3400 East Valley Road
Renton, WA 98057
June 2018
PBS Project No. 41482.000
RECEIVED
07/26/2018
amorganroth
PLANNING DIVISION
Exhibit 9
Full document
available in
Laserfiche
Submittals Folder
STEMEN ENVIRONMENTAL, INC.
P.O. BOX 3644
LACEY, WASHINGTON 98509-3644
CONTR. LIC. #STEMEEI081J9
Telephone 360-438-9521 Fax 360-412-1225
April 23, 2018
RE: REMEDIAL AND CORRECTIVE ACTIONS PROJECT FOR THE COMMERCIAL
PROPERTY LOCATED AT 3400 VALLEY ROAD, RENTON, WASHINGTON.
TAX PARCEL #302305-906
A. OVERVIEW
The subject property is composed of 5.65 acres (246,114 square feet) of commercially developed
property located at 3400 East Valley Road, Renton, Washington. The King County Assessor’s
Office lists the subject property as Tax Parcel #302305-9067.
Based on the review of aerial photos, Polk Street Directories, knowledgeable individuals, and
information obtained from the King County Assessor's Office, it appears that for approximately
64 years the subject property has been primarily occupied by an automotive wrecking yard
and/or radiator shop.
All automobile wrecking yard and/or radiator shop related operations have ceased on the subject
property. All disabled vehicles, automotive parts, storage trailers and related equipment have
been removed from the property. Currently the subject property and the on-site building are
unoccupied.
Recent environmental investigations of the surface and shallow subsurface soils on the subject
property have confirmed the presence of total petroleum hydrocarbons, and/or volatile organic
compounds at levels exceeding MTCA Method A Clean Up Levels for Industrial Properties.
Primarily the adversely impacted soils are present at depths of 2 feet below ground surface
(b.g.s.) or less on most of the property. The contaminated soils plume extends to greater depths
on selected portions of the property.
Initial groundwater samples obtained, using a truck mounted sampling probe, from selected
locations on the subject property confirmed the presence of total petroleum hydrocarbons,
volatile organic compounds and/or MTCA 5 Metals at MTCA Method A Clean Up Levels for
Industrial Properties.
A total of eight (8) groundwater monitoring wells were installed at selected locations throughout
the subject property using a truck mounted rotary auger drill rig operated by Licensed Resource
Protection Well Drillers.
Discreet groundwater samples were obtained from the groundwater monitoring wells on two (2)
seasonal groundwater monitoring events. Laboratory analyses results for the discreet
groundwater samples report no presence of the contaminants of concern at levels exceeding
MTCA Method A Clean Up Levels for Industrial Properties.
RECEIVED
06/29/2018
amorganroth
PLANNING DIVISION
Exhibit 10
2
Based on groundwater elevation measurements obtained in the dryer season (lower groundwater
elevations) the direction of groundwater flow is to the west, based on the elevations obtained
during the wetter season (higher groundwater elevation) the direction of groundwater was to the
northwest. Refer to Figures 1A and 1B for the Groundwater Elevation Maps.
The purpose of the proposed remedial and corrective actions project is to excavate and remove
all on-site soils that are adversely impacted by the contaminants of concern and to monitor the
positive impacts of these actions on the groundwater and the environmental integrity of the
subject property.
Any solid waste debris encountered during the excavation and removal of petroleum and/or
VOCs contaminated soils will be transported off-site to an appropriate off-site disposal facility.
Summary of Work:
B. REQUIRED PERMITS / APPROVALS
SEPA Issuance
NPDES Construction Stormwater General Permit
City of Renton Demolition Permit
City of Renton Civil Construction Permit (Clear and Grade & TESC Only)
Prior to the commencement of activities on selected portions of the subject property/site, the
above noted permits will be obtained.
C. CLEANUP SEQUENCE / SCHEDULE
1. Anticipated Construction: Start July 2018 Complete October 2018
2. Contractor will post sign with name and phone number of ESC supervisor (May be
consolidated with the required notice of construction sign).
3. Contractor will schedule a pre-construction meeting with the City of Renton Inspector
and Engineer prior to any ground disturbing activity.
4. Contractor will flag or fence clearing limits and install perimeter erosion control
measures including perimeter filter fabric fencing per approved grading plans.
5. Contractor will install stabilized construction entrances per approved grading plans.
6. The existing building will be demolished and associated services will be disconnected
and abandoned under City Demolition Permit.
a. Hazardous Materials Survey Report was completed by PBS Environmental on
May 18, 2018.
b. Hazardous Materials will be disposed of according to state regulations.
c. All remaining demolition debris will be disposed at an approved disposal facility.
7. Cleanup sampling, excavation, disposal, and import of clean structural fill.
a. Open Excavation work areas are intended to be between 5,000 -10,000 SF.
b. Work areas will be excavated, sampled, and stockpiled. Samples will have a 48
hour turn-around.
c. All contaminated soils (levels exceeding applicable cleanup levels) will be
properly loaded and properly transported to either Waste Management’s
Duwamish Reload Facility in Seattle or Republic Services facility in Seattle using
3
dump trucks. All soils will be transported under a properly issued manifest/waste
disposal authorization.
d. Once a work area is determined to be free of contamination the work area will be
restored to existing grade to prevent re-contamination. Trucks will haul in clean
structural material to fill the void.
8. The contractor will move sequentially through the entire property.
9. Paving materials that are encountered will be demolished and hauled to a local recycling
facility.
10. The wetland buffer will be established with bioretention soil and hydroseeding to
minimize growth of noxious weeds.
11. The contractor will enter the voluntary cleanup program.
12. No Further Action (NFA) letter will be requested.
D. EQUIPMENT
Conventional construction equipment will be used to conduct the site cleanup. An excavator and
dump trucks are the primary equipment that will be used. It is anticipated that several trucks per
day will be entering and exiting the site to haul off construction debris and import clean
structural fill.
Anticipate using the following:
2 – Case 160 (35000 lb) Excavators
1 – Case 580 K Excavator
1 – Midsize Dozer
1 – Front End Loader
Dump Trucks with PUP trailers (Number depends on availability)
Associated Water Pumps and Hoses
Above Ground Temporary Water Storage Tank
E. TOXICS CLEANUP PLAN
1. Demolition and removal of an approximately 4,000 square foot metal warehouse
building. Prior to demolition an asbestos survey and/or abatement project will be
performed on the building. All metal demolition debris will be transported to an
appropriate off-site facility for recycling as scrap metal.
2. Excavation and removal of all reasonably accessible surface and subsurface soils
containing total petroleum hydrocarbons (TPH), volatile organic compounds (VOCs)
and/or MTCA 5 Metals at levels that exceed MTCA Method A Clean Up Levels for
Industrial Properties.
3. All excavated soils will be temporarily stockpiled on-site. All stockpiled soils will be
properly tarped as necessary.
4. All soils containing the contaminants of concern at levels exceeding applicable cleanup
levels will be properly loaded and properly transported to either Waste Management’s
Duwamish Reload Facility in Seattle or Republic Services facility in Seattle using dump
trucks. All soils will be transported under a properly issued manifest/waste disposal
authorization.
4
5. It is anticipated that 8,500 + cubic yards (11,900 + tons) of contaminates of concern
contaminated soils will be excavated, removed, and transported to the designated off-site
disposal facility. Currently, it is anticipated that the remedial excavation area will be
extended to all of the perimeters of the subject property.
6. An appropriate number of confirmation soil samples will be obtained from the completed
remedial excavation floor and sidewalls on a periodic and regular basis as per applicable
guidelines.
7. All confirmation soil samples will be analyzed for the presence of gasoline range TPH
using method NWTPH-Gx and VOCs using method 8260, diesel fuel and lube oil range
TPH using method NWTPH-Dx/Dx Extended, and MTCA 5 Metals using EPA method
6020.
8. EPA Method 5035 sampling protocols will be followed when sampling soils to be
analyzed for VOCs.
NOTE: All laboratory analyses will be done on a 48-hour expedited turn around basis to
facilitate prompt characterization of existing on-site conditions so that appropriate
corrective and/or constructive actions can proceed immediately.
9. The excavation will be backfilled using suitable imported structural fill materials that will
be mechanically compacted for stability. Compaction testing will be performed by the
project’s Geotechnical Engineer. Backfill Materials Documents will be submitted to the
City of Renton for review before any of the materials are transported on-site.
10. All groundwater monitoring wells located within the remedial excavation areas, that are
in areas will be abandoned as per applicable regulations/guidelines.
11. Photographic documentation of all phases of the remediation project.
12. Potentially adversely impacted soils and/or waters present in the Washington Department
of Transportation Wetland/Right of Way will not be excavated and/or removed as part of
this remedial and/corrective actions project.
13. The results of these additional environmental investigations will determine if additional
remedial and/or corrective actions are required.
14. Filing of any required permits and start cards.
15. Documentation of all on-site activities in a Department of Ecology required Remedial
and Corrective Actions Report and Quarterly Groundwater Monitoring
Reports.
16. A site safety plan will be developed and followed by all on-site workers. A copy of the
Site Safety Plan will be on-site during all working hours.
17. Staff will have received a required minimum of 40 hours Hazmat Training.
5
18. The work area will be properly posted and secured with hazard notification signs
barricades, orange hazard fencing, and/or chain link security fencing.
19. All on-site work will be performed under permits issued by the City of Renton and
under the guidelines set forth in MTCA.
20. Upon the completion of the proposed remedial and corrective actions project, the site will
be entered into Ecology’s Voluntary Clean Up Program for the purpose of receiving an,
NFA (No Further Action) letter.
F. CLOSURE
Our intent is to enter into the Department of Ecology Voluntary Cleanup Program with the
purpose of receiving a No Further Action (NFA) letter. This report has been prepared, in part, to
address City of Renton SEPA comments. The planned cleanup will adhere to state and local
requirements.
This project, as planned, should not create any new problems within the downstream
environment. This project will not noticeably aggravate any existing downstream problems due
to either water quality or quantity.
Paul W. Stemen
Vice President
Construction Mitigation Description
Walker Auto Dealership 1
2180100.10
Walker Auto Dealership
3400 East Valley Road
Renton, WA 98057
Construction Mitigation Description
April 30, 2018
Project No. 2180100.10
The Walker Auto Dealership project site is a proposed commercial development project located at 3400
East Valley Road in the City of Renton, King County, Washington. The project site is comprised
of parcel 3023059067. The size of these parcels is 5.65 acres.
Site Grading, buffer remediation, and contamination remediation activities are scheduled to begin in June
of 2018 and end in the Fall of 2018. Construction of the dealership building and associated site
improvements will begin in the Spring of 2019 and end in the Fall of 2019. Construction activities will take
place on weekdays from 7 am to 6 pm, or as otherwise permitted by Renton Municipal Code. These
restricted construction hours will help minimize noise impacts from construction activities.
Construction vehicles will access the site via East Valley Road. Construction vehicles traveling to the site
from northbound State Route 167 will take the South 18th Street/SW 43rd Street exit, turn left onto South
180th Street, turn right onto East Valle y Road, and travel north until reaching the project site.
Construction vehicles traveling to the site from southbound State Route 167 will take the SW 43rd Street/
East Valley Road exit, turn right onto East Valley Road, and travel north until reaching th e project site.
The source of fill material or the destination of construction waste material is not known at this point.
Erosion control measures expected to be implemented include watering to control dust, a construction
entrance to reduce transport of sediment, silt fence and inlet protection devices to prevent sediment from
leaving the project site, and street sweeping to prevent tracking of sediment onto adjacent surfaces.
Installation of the frontage sidewalk and any utility connections in the road way will require temporary
traffic control. It is anticipated that a lane shift would be used for this work. A preliminary traffic control
plan is included with this description. The contractor will provide a specific traffic control plan as required.
Q:\2018\2180100\10_CIV\NON_CAD\REPORTS\Construction Mitigation\20180424 Constr Mitigation Descr.docx
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 11
Geotechnical Engineering Report
Walker Renton Auto Dealership
3400 East Valley Road
Renton, Washington
P/N 302305-9067
April 27, 2018
prepared for:
HHJ Architects, PLLC
Attention: Roger Hansen
601 St Helens
Tacoma Washington 98402
prepared by:
Migizi Group, Inc.
PO Box 44840
Tacoma, Washington 98448
(253) 537-9400
MGI Project P1238-T18
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 12
Full document
available in
Laserfiche
Submittals Folder
Civil Engineers ● Structural Engineers ● Landscape Architects ● Community Planners ● Land Surveyors
Preliminary Technical
Information Report
PREPARED FOR:
Roger Hansen
HHJ Architects, PLLC
601 St. Helens Avenue
Tacoma, WA 98402
PROJECT:
Walker Auto Dealership
3400 East Valley Road
Renton, WA 98057
2180100.10
PREPARED BY:
Bart Brynestad, PE
Senior Engineer
REVIEWED BY:
J. Matthew Weber, PE
Principal
DATE:
May 2018
RECEIVED
05/02/2018
amorganroth
PLANNING DIVISION
Exhibit 13
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: June 11, 2018
TO: Alex Morganroth, Associate Planner
FROM: Brianne Bannwarth, Development Engineering Manager
SUBJECT: Traffic Concurrency Test – Walker Subaru; LUA18-000305
The applicant is requesting Site Plan and Environmental (SEPA) Review to construct a 64,935
square foot auto dealership on a site previously occupied by auto junk yard. The subject property
is located at 3400 East Valley Road (APN 3023059067) near the int ersection of East Valley Road
and SW 34th St. The project site totals 5.65 acres in area and is zoned Commercial Arterial (CA).
The site is located in the Automall Area C Overlay District. Two existing buildings are presently
located on the site and are proposed for demolition as part of the project. The previous use
located on the property resulted in a significant amount of contaminated due to the
decomposition of the junk vehicles. The applicant would be required to obtain a Voluntary Clean-
up Approval from the Department of Ecology (DOE) as part of the Model Toxics Control Act. The
restoration plan submitted DOE would also be evaluated under the SEPA process. The proposed
new structure would include a showroom/sales area, parts sale and storage area, se rvice and
shop, and various other support areas. Access to the site is proposed via three new driveways
off of East Valley Road. The site is mapped with a high seismic hazard. According to the applicant,
a Category III wetlands is located within the SR 167 ROW directly east of the site.
The proposed development would generate approximately 1808 net new average weekday daily
trips. During the weekday AM peak hour, the project would generate approximately 1 net new
trips (88 inbound and 33 outbound). During the weekday PM peak hour, the project would
generate approximately 158 net new trips (63 inbound and 95 outbound). The proposed project
passes the City of Renton Traffic Concurrency Test per RMC 4-6-070.D as follows:
Exhibit 14
Transportation Concurrency Test – Walker Subaru
Page 2 of 3
July 27, 2018
Traffic Concurrency Test Criteria Pass
Implementation of citywide Transportation Plan Yes
Within allowed growth levels Yes
Project subject to transportation mitigation or impact fees Yes
Site specific street improvements to be completed by project Yes
Traffic Concurrency Test Passes
Evaluation of Test Criteria
Implementation of citywide Transportation Plan: The City’s investment in completion of the
forecast traffic improvements is 130% of the scheduled expenditure through 2017.
Within allowed growth levels: As shown on the attached citywide traffic concurrency summary,
the calculated citywide trip capacity for concurrency with the city adopted model for 201 8 is
2,049 trips, which provides sufficient capacity to accommodate 158 additional trips from this
project. A resulting 1,891 trips are remaining.
Project subject to transportation mitigation or impact fees: The project will be subject to
transportation impact fees at time of building permit for the project.
Site specific street improvements to be completed by project: The project will be required to
complete all internal and frontage street improvements for the building prior to occupancy. Any
additional off-site improvements identified through SEPA or land use approval will also be
completed prior to final occupancy.
Background Information on Traffic Concurrency Test for Renton
The City of Renton Traffic Concurrency requirements for proposed development projects are
covered under Renton Municipal Code (RMC) 4-6-070. The specific concurrency test requirement
is covered in RMC 4-6-070.D, which is listed for reference:
D. CONCURRENCY REVIEW PROCESS:
1. Test Required: A concurrency test shall be conducted by the Department for each
nonexempt development activity. The concurrency test shall determine consistency w ith
the adopted Citywide Level of Service Index and Concurrency Management System
established in the Transportation Element of the Renton Comprehensive Plan, according
to rules and procedures established by the Department. The Department shall issue an
initial concurrency test result describing the outcome of the concurrency test.
Transportation Concurrency Test – Walker Subaru
Page 3 of 3
July 27, 2018
2. Written Finding Required: Prior to approval of any nonexempt development activity
permit application, a written finding of concurrency shall be made by the City as part of
the development permit approval. The finding of concurrency shall be made by the
decision maker with the authority to approve the accompanying development permits
required for a development activity. A written finding of concurrency shall apply only to
the specific land uses, densities, intensities, and development project described in the
application and development permit.
3. Failure of Test: If no reconsideration is requested, or if upon reconsideration a project
fails the concurrency test, the project application shall be denied by the decision maker
with the authority to approve the accompanying development activity permit application.
The Concurrency Management System established in the Transportation Element on page XI -65
of the Comprehensive Plan states the following:
Based upon the test of the citywide Transportation Plan, consideration of growth levels
included in the LOS-tested Transportation Plan, payment of a Transportation Mitigation
Fee, and an application of site specific mitigation, development will have met City of
Renton concurrency requirements.
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
Page 1 of 9 LUA**-000***
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: Name, 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 will be required to submit a Final Stream Mitigation Report and Maintenance and
Monitoring proposal. In addition, the applicant will be required to comply with all the code requirements
of RMC 4-3-050 Critical Areas. This includes, but is not limited to, placing the critical area within a Native
Growth Protection Easement, providing fencing and signage, and providing the City with a site
restoration surety device and, later, a maintenance and moni toring surety device.
6. 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.
7. 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.
8. 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: Name, 425-430-7382, afowler@rentonwa.gov)
1. See Attached Development Engineering Memo dated June 2, 2018
ADVISORY NOTES TO APPLICANT
Page 2 of 9 LUA18-000305
Fire Authority:
(Contact: Corey Thomas, 425-430-7024, cthomas@rentonwa.gov)
Environmental Impact Comments:
1. Fire impact fees are applicable at the rate of $ 1.25 per square foot. Credit is given for the
demolished building. This fee is paid at time of building permit issuance.
Code Related Comments:
1. The preliminary fire flow is 4,000 gpm. A minimum of Four (4) fire hydrants are required. One
within 150-feet and others within 300-feet of the building. Hydrants are required within 50-feet of
all fire department connections for standpipes and sprinkler systems. A looped water main is
required for all buildings with fire flows exceeding 2,500 gpm Hydrant spacing on looped mains is
required to be 300 feet on center maximum.
2. Approved fire sprinkler and fire alarm systems are required throughout the building. Direct
outside access is required to the fire sprinkler riser rooms. The PIV, FDC and the water main
piping cannot be run under the building. Fire alarm systems are required to be fully addressable
and full detection is required. Separate plans and permits required by the fire department.
3. Fire department apparatus access roadways are required. Roadways shall be modified to meet or
exceed the fire code minimum in and around the proposed new building. Fire lanes are required
to meet 20-feet width with 25-foot inside and 45-feet outside turning radius. Roadways shall
support a minimum of a 30-ton vehicle and 75-psi point loading. Fire Lane signage required for
onsite roadways. Proposed front canopy shall be raised to a minimum of 13 -feet 6-inches of
vehicle clearance for fire apparatus.
5. Emergency Responder Radio Coverage requirement per IFC Section 510 and local amended
ordinance.
6. A parking structure on the second floor will require the installation of a standpipe.
7. Permits are required for above ground tanks. Separate plans and permits required by the fire
department for all above and below ground tank installation.
8. HMIS information is required before the building permit is issued
Technical Services:
(Contact: Amanda Askren, 425-430-7369, aaskren@rentonwa.gov)
1.
Community Services:
(Contact: Leslie Betlach, 425-430-6619, lbetlach@rentonwa.gov)
1. Parks Impact fee per Ordinance 5670 applies.
Police:
(Contact: Cyndie Parks, 425-430-7521, cparks@rentonwa.gov)
CONSTRUCTION PHASE
Theft from construction sites is one of the most commonly reported crimes in the City. To protect materials
and equipment it is recommended that all materials and tools be locked up when not in use. The site should
have security lighting, and any construction trailer or storage area should be completely fenced-in with portable
chain-link fencing. The fence will provide both a physical and psychological barrier to any prospective criminal
and will demonstrate that the area is private property. Construction trailers should be kept locked when not in
use, and should be fitted with heavy-duty deadbolts with a minimum 1-1/2” throw when bolted. Any
construction material that contains cop per should be removed from the construction site at the end of each
ADVISORY NOTES TO APPLICANT
Page 3 of 9 LUA18-000305
working day. Glass windows in construction trailers should be shatter-resistant. Toolboxes and storage
containers should be secured with heavy-duty padlocks and kept locked when not in use.
“No Trespassing” signs should be posted on the property during the construction phase. These signs will allow
officers, upon contact, to provide a verbal warning to trespassers that should they be contacted on the property
again, they could be cited and/or arrested.
COMPLETED FACILITY
All exterior doors should be made of solid metal or metal over wood, with heavy -duty deadbolt locks, latch
guards or pry-resistant cylinders around the locks, and peepholes. All strikeplates should have 2-1/2 to 3” wood
screws. If glass doors are used, they should be fitted with the hardware described above and additionally be
fitted with a layer of security film. Security film can increase the strength of the glass by up to 300%, greatly
reducing the likelihood of breaking glass to gain entry. Access to the back of the buildings should be limited,
preferably with security fencing or gates, as these areas could be vulnerable to crime due to the lack of natural
surveillance by vehicle and/or pedestrian traffic.
It is important to direct all foot traffic into the main entrance of the building. Any alternative employee
entrances should have coded access to prevent trespassing.
All areas of this project need to have adequate lighting. This will assist in the deterrent of theft of and from
motor vehicle as well as provide safe pedestrian travel for customers utilizing the business.
The structure should have a building number clearly posted with numbers at least 6” in height and of a color
contrasting with the building. This will assist emergency personnel in locating the correct location for response.
Landscaping should be installed with the objective of allowing visibility – not too dense and not too high. Too
much landscaping will make customers and employees feel isolated and will provide criminals with conceal ment
to commit crimes such as burglary and malicious mischief (property destruction).
It is important for safety and security reasons to have appropriate lighting and signage. Use plenty of lights
throughout your property, not just in the areas you thin k are most vulnerable. “No Trespassing” signs should
be posted in conspicuous locations throughout the property, including entrances to the property and parking
areas.
Garbage and recycling dumpsters, according to plans, are placed in the farthest corne rs behind the property,
bordering greenbelt area. Due to limited visibility of this area it is recommended dumpster areas be gated and
locked during and after business hours to prevent loitering, illegal dumping and/or tampering. Additional
lighting should also be placed around these areas for extra visibility.
Most theft of vehicles from dealerships is the result of keys and key fob’s not properly secured. To prevent theft
of automobiles and inventory at car dealerships, it is recommended to put in pla ce a high level of security around
key management. Electronic key cabinets are one recommendation that come with audit tracking systems to
secure keys and allow inventory control as well as require specific check-in/check-out monitoring. Key
management is to include the service department when customer vehicles left on-site for overnight service have
keys readily available to “grab & go”.
ADVISORY NOTES TO APPLICANT
Page 4 of 9 LUA18-000305
It is recommended that the dealership lot have proper barriers and fencing in place to prevent theft. Fencing
with barbed wire is recommended to store surplus inventory. Gates are recommended at all entrances/exits
and secured after hours to make it more difficult to drive vehicles off the lot due to theft. Bollards are
recommended throughout the property to prevent theft of vehicle. In review of the plans it looks like there will
be some bollards placed around the main building. When considering bollards as a deterrent to vehicle theft,
note that bollards can be placed throughout several areas of the property as permanent, decorative, and/or
moveable.
Due to the high-dollar inventory at auto dealerships, hired security guards and video monitored surveillance is
recommended. Guards can patrol major access points and minimized the threat of loss. The presence of guards
patrolling a property can discourage criminals from targeting your dealership. An auxiliary security service could
be used to patrol the property, preferably between the hours of 10:00 p.m. and 6:00 a.m. Video monitored
surveillance for this type of inventory should be in “real time”. If an alarm is tripped and is being monitored,
police can be dispatched immediately, increasing the chance of preventing the theft before it happens and
possibly arrest of a suspect. If you choose to use security guards and/or surveillance, post signs throughout the
property announcing that you do so. Let would-be criminals know you are watching.
I highly recommend that the developer have a Renton Police Crime Prevention Representative conduct a
security survey of the premises once construction is complete.
Building:
(Contact: Craig Burnell, 425-430-7290, cburnell@rentonwa.gov)
1. Recommendations of the geotechnical report must be followed.
ADVISORY NOTES TO APPLICANT
Page 5 of 9 LUA18-000305
DEPARTMENT OF COMMUNITY
& ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: June 2, 2018
TO: Alex Morganroth, Planner
FROM: Ann Fowler, Civil Engineer III, Plan Reviewer
SUBJECT: Utility and Transportation Comments for Walker Subaru
3400 East Valley Road
LUA 18-000305
I have reviewed the application for the Walker Subaru at 3400 East Valley Road (APN(‘s) 3023059067) and have the
following comments:
EXISTING CONDITIONS
The site is approximately 5.65 acres in size and is square in shape. The existing site is mostly impervious gravel area which
has been used as a vehicle storage lot. Site soils are generally contaminated with oils from the continued use of vehicular
storage.
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 12-inch City water main located in East Valley Road (see Water plan no. W-0304) that
can deliver a maximum total flow capacity of 5,000 gallons per minute (gpm). The approximate static water
pressure is 75 psi at the elevation of 20 feet. The site is located outside of an Aquifer Protection Area. There is
an existing 3/4-inch water meter serving the existing building on the property.
Sewer Wastewater service is provided by the City of Renton. There is an existing 8-inch PVC wastewater main located
in East Valley Road (see City plan no. S-0200).
Storm There is an existing storm drainage system in East Valley Road (see City plan no. R-1999). There no existing on-
site conveyance system or stormwater features. Surface run-off from the site appears to drain to the abutting
wetlands as well as to the public drainage system in East Valley Road.
Streets East Valley Road is a Collector Arterial Street with an existing right of way (ROW) width of 85 as measured using
the King County Assessor’s Map. Current street frontage improvements include curb and gutter and a 6-ft
sidewalk on both sides of the street. The site borders State Route 167 (SR 167) on the east property line.
WSDOT has identified, in their long-range planning programs for I-405 and SR-167, a direct access connection
to and from the south at SW 27th Street, which the City supports. Applicant should further coordinate with
WSDOT at 425-456-8538 for further coordination and to verify any future impacts related to widening of the
highway.
CODE REQUIREMENTS
WATER
ADVISORY NOTES TO APPLICANT
Page 6 of 9 LUA18-000305
1. Based on the information submitted with the land use application, Renton Regional Fire Authority has determined
that the preliminary fire flow demand for the development is 4,000 gpm.
2. The proposed water main improvements as shown on the composite utility civil plan submitted with the Land Use
Application provides the required looped 10-inch water main around the building and connecting to the existing
12-inch water main in East Valley Road since the fire flow demand is above 2,500 gpm.
a. A 15-ft water easement is required for the looped water main.
b. No buildings, structures or vaults shall be placed within the easement area or within 5 feet of the water
main.
c. A minimum of 10 feet horizontal separation shall be provided from the water main to the wetlands and
buffer area.
3. Installation of fire hydrants shall be as required by Renton Fire Prevention will be required. The number and
location of the hydrants shall be determined based on the City’s review of the final building and site plans.
4. Installation of a fire sprinkler stub with a detector double check valve assembly (DDCVA) for backflow prevention
to the building. The DDVCA shall be installed in an outside underground vault per City standard plan no. 360.1 (or
360.2 depending on the size of the system). The DDVCA may be installed inside the building if it meets the
conditions as shown on the City’s standard plan 360.5 for the installation of a DDCVA inside a building.
5. A reduced-pressure principle backflow prevention assembly (RPBA) is required for water meters for retail,
commercial, industrial water use. The RPBA shall be installed inside an above-ground heated enclosure per City
standard plan no. 350.2. The RPBA may be located inside the building if a drainage outlet for the relief valve is
provided and the location is pre-approved by the City Plan Reviewer and City Water Utility Department.
6. Meter sizing shall be based on Uniform Plumbing Code meter sizing criteria. Sizing calculations shall be provided
to the City. Meters 3” or larger, shall be installed in a concrete vault located outside of the building per COR
Standard Plan 320.4. By-pass piping, valves, and associated piping shall be purchased and installed by the
developer / contractor under City observation for meters 3” or larger.
7. A separate meter is 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.
8. Please refer to City of Renton General Design and Construction Standards for Water Main Extensions as shown in
Appendix J of the City’s 2012 Water System Plan.
9. Adequate horizontal and vertical separation between the new water main and other utilities (storm sewer pipes
and vaults, sanitary sewer, power, gas, electrical) shall be provided for the operation and maintenance of the
water main.
10. Retaining walls, rockeries or similar structures cannot be installed over the water main unless the water main is
inside a steel casing.
11. The development is subject to a water system development charge (SDC) fee. This is payable at construction
permit issuance. Proposed water meter sizes have not been noted on the preliminary utility plans. Typical water
meter sizes and associated fees are noted as follows:
a. The SDC fee for water is based on the size of the new domestic water to serve the project. The current
water fee for a single 1-inch meter is $3,727.00 per meter, 1-1/2 inch meter is $18,635.00 and a 2-inch
meter is $29,816.00.
b. A water system redevelopment credit will apply for the existing domestic water meters if they are
abandoned.
c. The SDC fee for fire service is based on the size of the fire service line to serve the project. The current
SDC fee for a 6-inch fire service line is $23,843.00.
d. SDC fees are assessed and payable at construction permit issuance.
12. Water service installation charges for each proposed domestic water service is applicable. Water Service
installation for a 1-inch water service line is $2,850.00* per service line, a 1-1/2 inch water service is $4,580.00*
per service line and for $4,710.00* for each 2-inch water service line. This is payable at construction permit
issuance.
13. Drop-in meter fee is $460.00* per meter for a 1-inch meter, $750.00* for a 1-1/2 inch meter, and $950.00* for a
2-inch meter. This is payable at issuance of the building.
14. Final determination of applicable fees will be made after the water meter size has been determined.
ADVISORY NOTES TO APPLICANT
Page 7 of 9 LUA18-000305
15. Additional water system development charges and water meter charges will apply if a landscape irrigation meter
is required and is based on the size of the meter.
SEWER
1. All existing side sewers will be required to be cut and capped during demolition of the properties. New side sewers
shall be installed to serve each building.
2. Any covered parking areas, if proposed, will need to direct parking drainage to the sanitary sewer system through
an oil/water interceptor. If any parking is not covered, it will need to be directed away from the sanitary sewer
and into the storm sewer system.
3. If floor drains are required by the building department, drains are required to be connected to the sanitary sewer
system. Flows shall be directed through the floor drains that are installed in accordance with the Uniform
Plumbing Code to an interior or exterior oil/water separator.
4. The development is subject to applicable wastewater system development charges based on the size of the new
domestic water to serve the project.
a. SDC fee for sewer is based on the size of the new domestic water to serve the project. The current sewer
fee for a 1-inch meter is $2,837.00 per meter, 1-1/2 inch meter is $14,185.00 and a 2-inch meter is
$22,696.00.
b. A redevelopment credit of the wastewater system development charges in the amount equal to the SDC
fee for the size of the existing domestic water meter(s) will be applied to each of the existing meters if
they are abandoned and capped at the main line.
c. SDC fees are payable at construction permit issuance.
SURFACE WATER
1. A geotechnical report, dated April 27, 2018, completed by Migizi Group, Inc., for the site has been provided.
Erosion control measures will need to be in place prior to starting grading activities on the site. The report
discounts the use of infiltration due to the high groundwater table present on the project site. Geotechnical
recommendations presented need to be addressed within the project plans.
2. A Preliminary Drainage Plan and Technical Information Report (TIR), dated May 2018, was submitted by AHBL with
the Land Use Application. 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. As discussed in the TIR, the applicant has determined that the redevelopment project is exempt from Core
Requirement #3, Flow Control, since the proposed development will result in less than a 0.15 cfs increase in
surface water run-off from the existing site conditions 100-year peak flow rate when modeled using the latest
version of the Western Washington Hydrology Model (WWHM 2012), as outlined in Core Requirement #3.
a. The redevelopment project is proposing to upgrade existing gravel and/or hard compacted dirt to
asphalt. The existing ground surface is not currently serviced by an existing piped or channeled
conveyance system. As such, while the existing ground surface is defined as an existing impervious area,
it is classified as an existing non-effective impervious area for the purposes of continuous modeling land
cover types per Section 3.2.2.
b. As defined in Section 3.2.2, non-effective impervious area is assumed to have the same hydrologic
response as the immediately surrounding pervious area. Therefore, the existing gravel/hard compacted
dirt land cover shall be modeled as grass rather than impervious surface.
c. The applicant will need to provide an updated WWHM model demonstrating compliance with the
exception criteria outlined in Section 1.2.3.1.A as part of the civil construction permit application. If the
exception criteria outlined in the RSWDM cannot be achieved, the applicant will be required to comply
with all requirements of Core Requirement #3, which may include installation of a detention facility
ADVISORY NOTES TO APPLICANT
Page 8 of 9 LUA18-000305
which shall be designed in accordance with the RSWDM that is current at th e time of civil construction
permit application.
4. The development is required to provide enhanced basic water quality treatment prior to discharge. Project water
quality treatment will consist of two separate systems in order to maintain the two natural discharge locations.
The east natural discharge basin will consist of conveyance to a bioretention cell prior to discharging into the
existing wetland to the east. The west natural discharge basin will consist of conveyance to a proprietary water
quality filter system prior to connection to the existing 12-inch concrete stormwater main located along East
Valley Road.
a. The applicant shall provide the GULD approval for the proposed water quality treatment filter system
verifying that the system has been accepted by the Department of Ecology.
b. The conveyance and water quality systems shall be designed in accordance with the RSWDM that is
current at the time of civil construction permit application.
5. There are no potential downstream flooding or erosion issues identified in the drainage report.
6. Appropriate on-site BMPs will be required to help mitigate the new runoff created by this development. A
preliminary drainage plan, including the application of on-site BMPs, has been included with the land use
application, which identifies the use of basic dispersion to mitigate the impervious roof area. The final drainage
plan and drainage report must be submitted with the civil construction permit application.
a. Final evaluation of the application of on-site BMPs to the maximum extent feasible will be completed
during civil construction permit review. The applicant may be required to apply additional on-site BMPs
in order to meet the minimum requirements outlined in Core Requirement #9.
7. All work proposed outside of the applicant’s property will require a permanent drainage easement to be provided
to the City and a temporary construction easement prior to any permits being issued.
8. A Construction Stormwater General Permit from Department of Ecology will be required since grading and clearing
of the site exceeds one acre. A Stormwater Pollution Prevention Plan (SWPPP) is required for this site.
9. 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 East Valley Road along the west property lines. East Valley Road is classified as
a Collector Arterial Road. Existing right-of-way (ROW) width is approximately 85 feet. To meet the City’s complete
street standards for collector arterial streets, minimum right of way width is 94 feet. Dedication of 4.5 feet of right
of way would be required. The proposed development is subject to half-street frontage improvements which
includes installation of paved travel width of 41 feet, with 8-ft wide parking on both sides, 0.5-ft wide curbs, 8-ft
wide landscaped planters, 8-ft wide sidewalk, and 2 feet of clear width at back of sidewalk.
a. The existing pavement width along East Valley Road is approximately 36 feet with a 0.5-foot curb/gutter
and a 6-foot sidewalk on the east and west sides of roadway along the project frontage. The City’s
Transportation section and Economic Development section reviewed East Valley Road and the
surrounding area and have determined that a modified collector arterial street section along the east side
of East Valley Road is more suitable for this location of East Valley Road.
b. The modified collector arterial street section along the east side of East Valley Road will maintain the
existing pavement width and curb-line. Applicant shall install a new 8-ft planter strip behind the existing
curb-line and a new 6-ft sidewalk behind the new planter strip. No right-of-way dedication will be required
to install the required frontage improvements.
2. The applicant has requested a street modification in order to match the modified the ROW width and street cross
section to match the existing roadway section and street frontage improvements noted above.
a. City staff is recommending approval of the applicant’s street modification request. Please see the Street
Modification Criteria and Analysis for a complete summary of the request, staff analysis, and staff
recommendation.
3. ADA access ramps shall be installed at all street crossings. Ramps shall be shown at each intersection. Ramps shall
be oriented to provide direct pedestrian crossings.
4. Parking lot construction shall be in accordance with City code 4-4-80G.
ADVISORY NOTES TO APPLICANT
Page 9 of 9 LUA18-000305
5. Street lighting and street trees are required to meet current city standards. Lighting plans are required to be
submitted with the land use application and will be reviewed during the construction utility permit review.
6. A traffic analysis dated April 30, 2018, was provided by Transportation Engineering Northwest (TENW). The site
generated traffic volumes were calculated using data from the Institute of Transportation Engineers (ITE) Trip
Generation Manual, 10th Edition, (2017). Based on the calculations provided, the proposed development would
average 974 new daily vehicle trips. Weekday peak hour AM trips would generate 66 new vehicle trips, with 18
vehicles leaving and 48 vehicles entering the site. Weekday peak hour PM trips would generate 85 new vehicle
trips, with 34 vehicles entering and 51 vehicles exiting the site. As detailed in the report the proposed project is
not expected to lower the levels of service of the surrounding intersections included in the traffic study. Increased
traffic created by the development will be mitigated by payment of transportation impact fees.
7. Refer to City code 4-4-080 regarding driveway regulations. Driveways shall be designed in accordance with City
standard plans 104.1 and 104.2.
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%.
d. Site accesses must be a minimum of 125-ft from the intersection.
e. The maximum number of driveway cuts is two (2) driveways per 330-ft of street frontage.
8. Paving and trench restoration shall comply with the City’s Trench Restoration and Overlay Requirements.
9. Payment of the transportation impact fee is applicable on the construction of the development at the time of
application for the building permit. The transportation impact fee that is current at the time of building permit
application will be levied.
10. Concurrency under separate cover, if applicable.
GENERAL COMMENTS
1. All existing and proposed utility lines (i.e. electrical, phone, and cable services, etc.) along property frontage or
within the site must be underground. The construction of these franchise utilities must be inspected and approved
by a City of Renton inspector.
2. Maximum exposed retaining wall height is 6-ft and shall be setback a minimum of 3-ft from the right-of-way as
outlined in RMC 4-4-040 – Fences, Hedges and Retaining Walls.
3. 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.
4. 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
5. A landscaping plan shall be included with the civil plan submittal. Each plan shall be on separate sheets.
6. Fees quoted in this document reflect the fees applicable in the year 2017 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.
7. * An additional 3% technology fee will be added to each fee marked with an asterisk (*).
8. A demo permit is required for the demolition of the existing building. The demo permit shall be acquired through
the building department.