Technical Comment Responce Letter dated August, 27, 2019DUNCANSON
Company, Inc.
August 27, 2019
Ms. Natalie Kamieniecki, Associate Planner
City of Federal Way Department of Community Development
33325 8`" Avenue South
Federal Way, WA 98003-6325
Re: Permit #18-105293-UP; Village Green Phase II, 217 SW 354"' Court
Dear Natalie:
Following are responses to the review comments in your April 18, 2019, letter.
Community Development
Affordable HoUSin&
A 5% affordable housing covenant has been recorded. A copy is attached.
DC198480.6
Baundai,y Line Adjustment
The need for a boundary line adjustment (BLA) prior to building permit issuance for
Building F is acknowledged. It is understood that this will be a condition of land use
approval.
Public Works —Development Services
Right -of -Way Issue
The requirement to dedicate 15 feet of right-of-way and place an additional 8 feet within a
K
z "Tract X" across the previous Phase I frontage is acknowledged. We will work with Public
0
Works to prepare the dedication documents and legal descriptions for execution and
recording.
Level i Downstream Analysis
A current field reconnaissance was performed and Section 3 of the TIR has been updated.
Geotechnical Report
A current geotechnical report is included in Section 6 of the TIR..
Water Quality
Water quality treatment (Enhanced Basic) is now proposed via Filterra units placed
adjacent to the parking bays and drive aisles. For the exterior drive ramps leading into the
lower level garages, runoff can be piped to remote Filterra units that can be located at a
lower portion of the site so as to allow gravity drainage. Filterra underdrains and overflows
will be connected to the existing storm drain system, where it will then be routed to.
existing detention pond. Section 4, Part E of the TIR has been updated. RESUE3M ED
145 SW 155"' Street + Suite 102 + Seattle, Washington 98166 AUG � � ����
Phone 206.244,4141 e Fax 206.244.4455 + Web www.duncansonco.com
�CIVIL ENGINEERING
C[TY OF FEDERAL WAY
COMMUNITY DEVELOPMENT
City of Federal Way Village Green
8/27/2019
Page 2
Phase 1 Water Quality
Comment noted. The existing wetpond and bioswale will remain.
Solid Wa.-te
The solid waste building (near Bldgs I and J) has been revised so that it no longer
encroaches into the front yard setback. Calculations for additional recycle and trash
receptacles are now provided on sheet C4. The building will house 3, 2 CY trash dumpsters
and 1, 2 CY recycle dumpster, and may also include separated glass or aluminum
recepticals. The exterior pad located west of the Memory Care building will have 1, 2 CY
trash and 1, 2 CY recycle dumpters. Currently, recycle is non -separated single stream. The
proposed trash and recycle service was based on prorating the existing service by existing
number of units to the new number of units and rounding up. Service entrances have been
called out and are within 150 feet of the solid waste storage areas. To our knowledge, the
solid waste and recycle enclosures comply with FWRC 19.25.150).
Dispersion
The sheet flow dispersion areas on the internal drive loop and parking bays has been deleted
in lieu of providing Filterra devices to achieve Enhanced Basic water quality treatment.
Gravel Filled Trenches for Basic Dispersion are still proposed on the outer periphery of the
project where the flowpath length, slope and vegetation requirements can be met. Two feet
of trench, plus 25 feet of flowpath are required for this BMP. This is achieved within the
property boundary in the locations shown. One trench on the east side of Building F was
removed, because that area is too steep and fell partially within the proposed right of way
dedication area. It should be noted that final BMP selection and design will occur with the
building permit stage.
Public Works —Traffic
Traffic Impact Fee
Requirement noted.
Concurreney
Comment noted.
Dedication Issue
Plans revised to show dedication and Tract X per City's letter dated April 2, 2019.
City of Federal Way
8/27/2019
Page 3
Village Green
Lakehaven Water and Sewer District
Water and sewer availability certificates were issued by Lakehaven and included with the
application. The remaining comments appear to be conditions that will apply at time of
building permit (service connection permits, PRV/BPA/DCVA requirements, etc.).
Sincerely,
Duncanson Company, Inc.
Harold M. Duncanson, PE
President
Enclosure