HomeMy WebLinkAboutC_ERC_Determination_Agency_Letter_S_Singh_SP_190607.pdf
Enclosure
cc: King County Wastewater Treatment Division Ramin Pazooki, WSDOT, NW Region
Boyd Powers, Department of Natural Resources Larry Fisher, WDFW
Karen Walter, Fisheries, Muckleshoot Indian Tribe Duwamish Tribal Office
Melissa Calvert, Muckleshoot Cultural Resources Program US Army Corp. of Engineers
Stephanie Jolivette, Office of Archaeology & Historic Preservation Washington State Department of Ecology
June 7, 2019
Washington State
Department of Ecology
Environmental Review Section
PO Box 47703
Olympia, WA 98504-7703
Subject: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION
Transmitted herewith is a copy of the Environmental Determination for the following project reviewed
by the Environmental Review Committee (ERC) on June 3, 2019:
SEPA DETERMINATION: Determination of Non-Significance - Mitigated (DNS-M)
PROJECT NAME: S. Singh Short Plat
PROJECT NUMBER: LUA17-000803, ECF, SHPL-A
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on June
21, 2019, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady
Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and information
regarding the appeal process may be obtained from the City Clerk’s Office, (425) 430-6510.
Please refer to the enclosed Notice of Environmental Determination for complete details. If you have
questions, please call me at (425) 430-7289.
For the Environmental Review Committee,
Clark Close
Senior Planner
DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT
Planning Division
1055 South Grady Way, 6th Floor | Renton, WA 98057 | 425-430-7200, ext. 2
www.rentonwa.gov
OF ENVIRONMENTAL DETERMINATION
ISSUANCE OF A DETERMINATION OF
NON-SIGNIFICANCE - MITIGATED (DNS-M)
POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION
DNS-M: THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED
ACTION HAS PROBABLE SIGNIFICANT IMPACTS THAT CAN BE MITIGATED THROUGH MITIGATION MEASURES.
DATE OF NOTICE OF ENVIRONMENTAL
DETERMINATION:
June 3, 2019
PROJECT NAME/NUMBER: LUA17-000803, ECF, SHPL-A
PROJECT LOCATION: 1003 Renton Ave S LOT (APN 0007200196)
LOCATION WHERE APPLICATION MAY
BE REVIEWED:
Applicant documents are available online through the City of Renton
Document Center website. See also http://bit.ly/2VNgwIL
PROJECT DESCRIPTION: The applicant is requesting Environmental Review (SEPA) and approval of a
6-lot hillside subdivision at 1003 Renton Ave S LOT (APN 0007200196) for the future development of 6 single-family
houses and a stormwater vault. The 3.22 acre property is primarily forested and is located on the westerly edge of
Renton Ave S, between S 9th St and S 10th St within the Residential-8 dwelling units per acre (R-8) zone. The proposed
lots of the short plat would range in size from 7,824 square feet (sf) in area to 9,996 sf. The remainder of the site would
be divided between a 9,975 sf stormwater tract and ±79,712 sf critical areas tract. The residential density is roughly 4.3
dwelling units per net acre. Access to the residential lots would be from Renton Ave S. Half-street frontage
improvements would be completed along Renton Ave S. Slope gradients are generally 25 to 35 percent, with steeper
slopes bordering a series of east-west drainages that descend the slope to the west. The site contains regulated
geological hazardous areas such as steep slopes, erosion, landslide, seismic, and coal mine hazards. A majority of the
trees within the heavily treed site would be retained. Tree removal would be primarily associated with the lots and
stormwater tract improvements. The applicant submitted a Geotechnical Report, Geotechnical Addendum, Technical
Information Report, Arborist Report, Critical Areas Report, Wetland and Stream Reconnaissance Review, and Offsite
Wetland and Drainages Report.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on June 21, 2019, together
with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to
the Examiner are governed by City of RMC 4-8-110 and information regarding the appeal process may be obtained
from the Renton City Clerk’s Office, (425) 430-6510.
PUBLIC HEARING: If the Environmental Determination is appealed, a public hearing will be set
and all parties notified.
NOTICE
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
SIGNATURES:
Gregg Zimmerman, Administrator
Public Works Department
Date Rick M. Marshall, Administrator
Renton Regional Fire Authority
Date
Kelly Beymer, Administrator
Community Services Department
Date C.E. Vincent, Administrator Date
Department Of Community & Economic Development
ENVIRONMENTAL (SEPA) DETERMINATION OF
NON-SIGNIFICANCE (DNS-M)
Due to procedural error the previous SEPA determination on April 29, 2019 was hereby withdrawn on May
31, 2019 per WAC 197-11-340(3). This determination document shall supersede and replace in its entirety
that certain SEPA Determination.
PROJECT NUMBER: LUA17-000803, ECF, SHPL-A
APPLICANT: Sound and Steve LLC, 9217 S 220th Lane SE, Kent, WA 98031
PROJECT NAME: S. Singh 6-Lot Short Plat
PROJECT DESCRIPTION: The applicant is requesting Environmental Review (SEPA) and approval of a 6-lot
hillside subdivision at 1003 Renton Ave S LOT (APN 0007200196) for the future development of 6 single-family houses and a
stormwater vault. The 3.22 acre property is primarily forested and is located on the westerly edge of Renton Ave S, between S
9th St and S 10th St within the Residential-8 dwelling units per acre (R-8) zone. The proposed lots of the short plat would range
in size from 7,824 square feet (sf) in area to 9,996 sf. The remainder of the site would be divided between a 9,975 sf stormwater
tract and ±79,712 sf critical areas tract. The residential density is roughly 4.3 du/ac. Access to the residential lots would be from
Renton Ave S. Half-street frontage improvements would be completed along Renton Ave S. Slope gradients are generally 25 to
35 percent, with steeper slopes bordering a series of east-west drainages that descend the slope to the west. The site contains
regulated geological hazardous areas such as steep slopes, erosion, landslide, seismic, and coal mine hazards. A majority of the
trees within the heavily treed site would be retained. Tree removal would be primarily associated with the lots and stormwater
tract improvements. The applicant submitted a Geotechnical Report, Geotechnical Addendum, Technical Information Report,
Arborist Report, Critical Areas Report, a Wetland and Stream Reconnaissance Review, and an Offsite Wetland and Drainages
Report.
PROJECT LOCATION: 1003 Renton Ave S LOT (APN 0007200196)
LEAD AGENCY: City of Renton
Environmental Review Committee
Department of Community & Economic Development
The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse impact
on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21C.030(2)(c). Conditions were
imposed as mitigation measures by the Environmental Review Committee under their authority of Section 4-9-070D Renton
Municipal Code. These conditions are necessary to mitigate environmental impacts identified during the environmental review
process. Because other agencies of jurisdiction may be involved, the lead agency will not act on this proposal for fourteen (14)
days.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on June 21, 2019. Appeals must
be filed in writing together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA
98057. Appeals to the Examiner are governed by RMC 4-8-110 and more information may be obtained from the Renton City
Clerk’s Office, (425) 430-6510.
PUBLICATION DATE: June 7, 2019
DATE OF DECISION: June 3, 2019
DocuSign Envelope ID: 509AE353-BF12-4C7C-A463-4032938B4B15
6/3/2019 | 10:40 AM PDT
6/3/2019 | 1:11 PM PDT
6/3/2019 | 8:48 AM PDT
6/3/2019 | 7:53 PM PDT
DETERMINATION OF NON-SIGNIFICANCE – MITIGATED
(DNS-M) MITIGATION MEASURES AND ADVISORY NOTES
PROJECT NUMBER: LUA17-000803, ECF, SHPL-A
APPLICANT: Sound and Steve LLC, 9217 S 220th Lane SE, Kent, WA 98031
PROJECT NAME: S. Singh 6-Lot Short Plat
PROJECT DESCRIPTION: The applicant is requesting Environmental Review (SEPA) and approval of a 6-lot
hillside subdivision at 1003 Renton Ave S LOT (APN 0007200196) for the future development of 6 single -family houses
and a stormwater vault. The 3.22 acre property is primarily forested and is located on the westerly edge of Renton Ave
S, between S 9th St and S 10th St within the Residential-8 dwelling units per acre (R-8) zone. The proposed lots of the
short plat would range in size from 7,824 square feet (sf) in area to 9,996 sf. The remainder of the site would be divided
between a 9,975 sf stormwater tract and ±79,712 sf critical areas tract. The residential density is roughly 4.3 du/ac.
Access to the residential lots would be from Renton Ave S. Half-street frontage improvements would be completed
along Renton Ave S. Slope gradients are generally 25 to 35 percent, with steeper slopes bordering a series of east-west
drainages that descend the slope to the west. The site contains regulated geological hazardous areas such as steep
slopes, erosion, landslide, seismic, and coal mine hazards. A majority of the trees within the heavily treed site would
be retained. Tree removal would be primarily associated with the lots and stormwater tract improvements. The
applicant submitted a Geotechnical Report, Geotechnical Addendum, Technical Information Report, Arborist Report,
Critical Areas Report, a Wetland and Stream Reconnaissance Review, and an Offsite Wetland and Drainages Report.
PROJECT LOCATION: 1003 Renton Ave S LOT (APN 0007200196)
LEAD AGENCY: The City of Renton
Department of Community & Economic Development
Planning Division
MITIGATION MEASURES:
1. The applicant shall comply with the recommendations found in the Geotechnical Addendum prepared by The Riley
Group, Inc., dated June 13, 2018. If the recommended drilling and further research determine that coal mine hazards
prevent the construction of single family structures and utilities, then the number of proposed lots may be required
to be reduced and/or the final design of the short plat could change.
2. A note shall be recorded on the face of the final short plat map identifying and delineating the coal mine hazard
areas on the project site.
3. All earthwork performed and implemented by the applicant shall be limited to seasonally drier periods (typically
from April 1 to October 31) and shall be consistent with the recommendations of the Geotechnical Engineering
Report prepared by The Riley Group, Inc., dated March 14, 2017, or an updated report submitted at a later date.
4. The stormwater vault proposed in Tract B shall be designed to be located underground and/or covered in soil. No
part of the vault shall be permitted to protrude from the ground surface. If it is determined that the stormwater vault
is unable to be constructed below the ground surface, then the applicant shall provide a fully sight -obscuring
landscape visual barrier or an alternative method for approval by the Planning Division.
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
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: Clark Close, 425-430-7289, cclose@rentonwa.gov)
1. RMC section 4-4-030C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless
otherwise approved by the Development Services Division.
2. 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 hydro seed 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 between 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: Justin Johnson, 425-430-7291, JTJohnson@rentonwa.gov)
1. See Attached Development Engineering Memo dated January 10, 2018.
Fire Authority:
(Contact: Corey Thomas, 425-430-7024, cthomas@rentonwa.gov)
Environmental Impact Comments:
Page 1 of 2 LUA17-000803
ADVISORY NOTES TO APPLICANT
1. The fire impact fees are applicable at the rate of $829.77 per single family unit. This fee is paid at
building permit issuance.
Code Related Comments:
1. The fire flow requirement for a single family home is 1,000 gpm minimum for dwellings up to 3,600
square feet (including garage and basements). If the dwelling exceeds 3,600 square feet, a minimum of
1,500 gpm fire flow would be required. A minimum of one fire hydrant is required within 300-feet of
the proposed buildings and two hydrants if the fire flow goes up to 1,500 gpm. There are two existing
hydrants within 300-feet of some of the proposed homes, but not all. One hydrant shall require a 5-
inch storz fitting. There are no fire hydrants within 300 -feet of proposed Lot 7 and the existing 4-inch
water main cannot support a new fire hydrant.
2. Fire department apparatus access roadways are adequate as they exist. Future development of
property/building lots located on Cedar Avenue South would be very restricted or not allowed due to
long dead end street.
Technical Services:
(Contact: Amanda Askren, 425-430-7369, aaskren@rentonwa.gov)
1. None.
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)
1. None.
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. Coal
mine workings should be located on site plans and any mitigation must be specified by the
geotechnical engineer.
Page 2 of 2 LUA17-000803
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
M E M O R A N D U M
DATE: January 10, 2018
TO: Clark Close, Senior Planner
FROM: Justin Johnson, Civil Plan Reviewer
SUBJECT: S. Singh Short Plat
LUA17-000803
I have reviewed the application for Singh Short Plat located at 1003 Renton S Ave and have the following
comments:
EXISTING CONDITIONS
The site is approximately 3.23 acres in size and is rectangular in shape. The site does not contain a
residence and is completely forested. The site is fronted by Renton Ave S on the east side of the parcel.
WATER: This site is in the City of Renton water service area. There is an existing 8” water main running
north and south along the west side of Renton Ave S. Reference Project File WTR2700410 in COR Maps
for the record drawings. There is no existing water meters that serve this property.
SEWER: The site is in the City of Renton sewer service area. There is an existing 8” clay pipe sewer main
running north to south within Renton Ave S. Reference Project File WWP2700027 in COR Maps for
record drawings. There is current no existing sewer stub to serve the property.
STORM DRAINGE: Currently there are three vegetated flow paths that direct the surface water from S
9th St, Renton Ave S, and S 10th St across the property down to Rolling Hills Creek. On-site drainage either
infiltrates or sheet flows southwest.
STREETS: Renton Ave S is classified as a Residential Access Road. At this location Renton Ave S existing
street section consists of a pavement width of approximately 30’. The existing right of way width for
Renton Ave S is approximately 60’ per the King County Assessor’s Map.
WATER COMMENTS
The following improvements are required to be provided by the developer for the proposed project to
provide water service to each lot.
Singh Short Plat – LUA17-000803
Page 2 of 4
January 10, 2018
1. Installation of fire hydrants within 300 feet of each lot and as required by the Fire Department
to provide coverage to all lots.
2. Installation of 1-inch domestic water service line to each lot from the above new 8-inch water
line.
3. Installation of individual pressure reducing valves (PRV’s) behind each mater meter because the
static water pressure is above 80 psi.
4. The development is subject to applicable water system development charges and water meter
installation fees. Utility System Development Charges (SDC) will be due at the time of utility
construction permit issuance. The current water meter fee amount for a 1-inch service sizes is
$3,245.00 and the current fee for 1” water meter installed by City is $3,310.00. The fee is
subject to change and the rate that is current at the time of issuance of the utility construction
permit will be applicable on the project. Each lot shall have a separate meter.
5. Civil plans for the water main improvements will be required and must be prepared by a
professional engineer registered in the State of Washington. 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. Adequate horizontal and vertical separations between the
new water main and other utilities (storm sewer, sanitary sewer, power, gas, electrical) shall be
provided for the operation and maintenance of the water main.
SEWER COMMENTS
1. The site is located in the City of Renton sewer service area.
2. There is an existing 8 inch diameter sewer main on Renton Ave South and an existing 8 inch
diameter sewer main located in the sewer easement on the north of the subject parcel.
3. Extension of 8” diameter sewer main along the westerly edge of the proposed lots along with
minimum 15 feet wide gravel (minimum surface type) is required. A 15-foot wide gravel access
is also required within the utility easement for the sewer line to the north of proposed Lot 1.
4. The main extension should also continue from the southwest corner of the proposed Lot 4 and
connect to the sewer main located within Renton Ave S. Individual side sewers to serve each lot
should be provided.
5. Utility System Development Charges (SDC) will be due at the time of utility construction permit
issuance. Wastewater Fee amount per sewer connection is $2,837.00. The rate is subject to
change and the rate that is current at the time of issuance of the utility construction permit will
be applicable on the project.
6. All new side sewers shall be 6”. All new side sewers shall flow by gravity to the main at a
minimum slope of 2%. Each lot shall have its own side sewer. Sewer cleanouts should not be
located in the new driveways.
STORM DRAINAGE COMMENTS
1. A preliminary drainage plan and Technical Information Report (TIR) prepared by Core Design
dated August 21, 2017 were submitted to the City as part of the site plan submittal. The site is
located in the City’s Flow Control Duration Standard (Forested Site Conditions). The site is
located in the Thunder Hills Creek drainage basin. The TIR was not completed in accordance
with the standards found in the 2017 Renton Surface Water Design Manual (RSWDM). All nine
core and six special requirements were not addressed.
2. Due to the re-routing of surface water through the steep slopes onsite the final TIR needs to
include a Level 2 downstream analysis for the proposed adjustments to the drainage path to
Singh Short Plat – LUA17-000803
Page 3 of 4
January 10, 2018
satisfy Core Requirement #2, Offsite Analysis. The analysis will need to discuss the
potential increase in erosion due to the increase amount of water volume.
3. A detention and water quality vault is proposed to meet the flow control requirements to satisfy
Core Requirement #3, Flow Control Facilities. The vault was sized using MGS. Vault sizing
calculations used forested conditions for the existing conditions input into MGS for the lot area
after right of way dedication. Revised vault sizing calculations using MGS should be provided
with the construction permit submittal.
4. Conveyance calculations were not provided in the preliminary TIR. Conveyance calculations shall
be included in the final TIR to satisfy Core Requirement #4, Conveyance System.
5. The preliminary drainage plan shows a piped stormwater conveyance system in the Renton
Avenue S that conforms to the City’s street standards. New storm drain shall be designed and
sized in accordance with the standards found in Chapter 4 of the 2017 RSWDM. Storm drain
with a minimum diameter of 12” is required in the public right of way.
6. A geotechnical report evaluating site soil conditions was prepared by the Riley Group dated
March 14, 2017. The report recommends to not use any type of infiltration systems onsite due
to the surface and subsurface conditions.
7. Applicant shall provide an easement to the City of Renton for Tract A to allow the City of Renton
Surface Water to continue to flow across the property.
8. Each new lot is subject to a stormwater system development charge. The 2017 SDC for
stormwater is $1,718.00 per lot. Stormwater SDC fees are due at construction permit issuance.
TRANSPORTATION/STREET COMMENTS
1. Each new lot is subject to a transportation impact fee. The 2017 transportation impact fee is
$5,430.85 per single family home. The transportation impact fee is due at the time of building
permit issuance for each individual home.
2. Street and frontage requirements Renton Ave South is a residential street with ROW width of 60
feet. As per City of Renton code 4-6-060, street frontage improvements including paved
roadway width of minimum 26 feet or paved width to match existing paved width along the
corridor (the larger number is required), 0.5 feet wide curbs, 8 feet wide landscaped planters, 5
feet wide sidewalks, drainage improvements, and streetlights are required to be provided on
residential streets. As per RMC 4-6-060, the half street frontage improvements will be required
to be built Renton Ave South frontage by the developer.
3. Per RMC 4-4-080, the maximum width of a single loaded garage driveway is 9’ and the maximum
width of a double loaded garage driveway is 16’. If a garage is not present, the maximum
driveway width is 16’. Driveways shall not be closer than 5’ to any property line. Maximum
slopes for driveways shall not exceed 15% provided that driveways exceeding 8% provide
slotted drains at the lower end with positive drainage discharge to restrict runoff from entering
the garage.
4. Per RMC 4-6-060, street lighting is required as the project is larger than four residential units. A
photometric study and street lighting plan per City standards shall be submitted with the
construction permit submittal.
5. The project does not require a Traffic Impact Analysis as the project produces less than 20
vehicles per hour in both the AM and PM peak periods.
6. Paving and trench restoration within the City of Renton right of way shall comply with the City’s
Restoration and Overlay requirements.
Singh Short Plat – LUA17-000803
Page 4 of 4
January 10, 2018
GENERAL COMMENTS
1. The fees listed are for 2017. The fees that are current at the time of the respective permit
issuance will be levied. Please see the City of Renton website for the current fee schedule.
2. Retaining walls that are 4’ or taller from bottom of footing and stormwater detention
vaults will require a separate building permit. Structural calculations and plans prepared
by a licensed engineer will be required as part of the building permit review.
3. All civil plans shall conform to the current City of Renton survey and drafting standards.
Current drafting standards can be found on the City of Renton website.
4. A separate plan submittal will be required for a construction permit for utility work and
street improvements. All plans shall be prepared by a licensed Civil Engineer in the State of
Washington.
5. Please see the City of Renton Development Engineering website for the Construction Permit
Application and Construction Permit Process and Submittal Requirements. Please contact the
City to schedule a construction permit intake meeting.