HomeMy WebLinkAboutWeston Heights SEPA DNS-M 10-06-2014DEPARTMENT OF COMMUNITY EXHIBIT 14
AND ECONOMIC DEVELOPMENT
ENVIRONMENTAL (SEPA) DETERMINATION OF NON -SIGNIFICANCE
- MITIGATED (DNS -M)
PROJECT NUMBER: LUA14-000958, ECF, PP
APPLICANT: Justin Holland
PROJECT NAME: Weston Heights Preliminary Plat
PROJECT DESCRIPTION: The applicant is requesting Preliminary Plat approval and Environmental
(SEPA) Review for the subdivision of an existing 197,974 square foot (4.54 acre) project site into 12 lots for the
future construction of single family residences and three tracts (Tracts A, B, and Q. The project site is located
within the Residential - 4 dwelling unit per acre (R-4) zoning designation and the Residential Low Density (RLD)
Comprehensive Plan Land Use designation. The applicant has proposed to cluster Lots 1-9, which are located on
the western portion of the project site. The proposed lots would range in size from 4,510 square feet to 11,718
square feet. An existing 31,048 square foot Category 2 wetland is centrally located within the project site, no
impacts are proposed to the wetland or buffer area. Access to Lots 1-9 would be provided via a new public
street off of Nile Avenue NE, which terminates in a hammerhead turnaround. Access to Lots 10-12 would be
provided via a new 26 -foot wide private dead end street over an abutting lot to the north, which connects to NE
7th Place. The private street would terminate in a hammerhead turnaround.
PROJECT LOCATION: 650/684 Nile Avenue NE
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. an October 24, 2014.
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.
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
PUBLICATION DATE: October 10, 2014
DATE OF DECISION: OCTOBER 6, 2014
SIGNATURES:
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Public Wor s partment Date
Terry Higashiyama, Administrator
Community Services Department Date
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Fire & Emergency Services
C.E. "Chip" Vincent, Administrator
Department of Community &
Economic Development
Date
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Date
DEPARTMENT OF COMMUNITY EXHIBIT 15
AND ECONOMIC DEVELOPMENT
DETERMINATION OF NON -SIGNIFICANCE -MITIGATED (DNSM)
MITIGATION MEASURES AND ADVISORY NOTES
PROJECT NUMBER: LUA14-000958, ECF, PP
APPLICANT: Justin Holland, Prospect Development
PROJECT NAME: Weston Heights
PROJECT DESCRIPTION: The applicant is requesting Preliminary Plat approval and
Environmental (SEPA) Review for the subdivision of an existing 197,974 square foot (4.54 acre)
project site into 12 lots for the future construction of single family residences and three tracts
(Tracts A, B, and C). The project site is located within the Residential - 4 dwelling unit per acre
(R-4) zoning designation and the Residential Low Density (RLD) Comprehensive Plan Land Use
designation. The applicant has proposed to cluster Lots 1-9, which are located on the western
portion of the project site. The proposed lots would range in size from 4,510 square feet to
11,718 square feet. An existing 31,048 square foot Category 2 wetland is centrally located
within the project site, no impacts are proposed to the wetland or buffer area. Access to Lots 1-
9 would be provided via a new public street off of Nile Avenue NE, which terminates in a
hammerhead turnaround. Access to Lots 10-12 would be provided via a new 26 -foot wide
private dead end street over an abutting lot to the north, which connects to NE 7th Place. The
private street would terminate in a hammerhead turnaround.
PROJECT LOCATION:
650/684 Nile Ave NE
LEAD AGENCY: The City of Renton
Department of Community & Economic Development
Planning Division
MITIGATION MEASURES:
1. Project construction shall be required to comply with the recommendations
found in the Geotechnical Engineering Study prepared by Geo Group Northwest,
Inc. (dated July 3, 2014) including the need to over excavate past loose fill and
the placing of compacted structural fill.
2. The sewer connection from the east side (Lots 10, 11 & 12) shall be made to the west
side via a trenchless construction method to be approved by the City and shall be butt -
fusion welded HDPE pipe. There shall be no construction trenches located in the
wetland or wetland buffer. The manholes used to make the connection for this pipe
shall reside within the proposed paved areas.
ADIVISORY NOTES:
Community Services Review Leslie Betlach Ph: 425-430-6619 email: LBetlach@rentonwa.gov
Recommendations: A. Parks Impact fee per Ordinance 5670 applies
b
B. There are no impacts to parks
Street trees – on Nile use Eastern Redbud
On other streets -do not use redbud or Amur Maple—use only large maturing trees (e.g. Redmond Linden
@ 50' on -center
Lot 1 tree -- street tree could affect placement of a stop sign
Do not plant trees closer than:
30 ft. – street lights
40 ft. – stop signs
10 ft. – driveway approach
6 ft. – fire hydrant, house service water shut-off/line
40 ft. – to intersections
All trees shall be specimen grade, 2" caliper, single stem with one terminal leader.
ERC Mitigation Measure Created On: 09/08/2014
1. Project construction shall comply with the recommendations provided in the submitted Geotechnical
Engineering Study, prepared by Geo Group Northwest, Inc. dated July 3, 2014.
2. The sewer connection from the east side (Lots 10, 11 & 12) shall be made to the west side via a
trenchless construction method to be approved by the City and shall be butt -fusion welded HDPE pipe.
There shall be no construction trenches located in the wetland or wetland buffer. The manholes used to
make the connection for this pipe shall reside within the proposed paved areas.
Fire Review -- Building Corey Thomas Ph: 425-430-7024 email: cthomas@rentonwa.gov
Recommendations: Environmental Impact Comments:
1. The fire impact fees are applicable at the rate of $479.28 per single family unit. This tee is paid at
time of building permit issuance. Credit will be granted for the removal of the one existing home.
Code Related Comments:
1. The fire flow requirement for a single family home is 1,000 gprn 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 is one existing fire hydrants within 300 feet of some of the proposed buildings but not
all. A water availability certificate is required from King County Water District 90.
2. Fire department apparatus access roadways are required to be a minimum of 20 -feet wide fully
paved, with 25 -feet inside and 45 -feet outside turning radius. Fire access roadways shall be constructed
to support a 30 -ton vehicle with 322 -psi point loading. Roadways exceeding 150 -feet require and
approved turnaround. Roadway A and B appear to meet city street standards and fire department access
requirements. Roadway C exceeds 300 -feet long and by city code requires a 90 -foot
diameter cul-de-sac, which is not provided. Applicant has requested a variance to instead install a
hammerhead type turnaround. The Renton Fire Department would support the approval of this variance
with the condition that the three homes accessed by Roadway C, Lots 10, 11 and 12 are all fully
equipped with an approved automatic fire sprinkler system.
Police Review Cyndie Parks Ph: 425-430-7521 email: cparks@rentonwa.gov
Recommendations: Minimal impact on police services.
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.
ERC Mitigation Measures and Advisory Notes Page 2 of 2