19-101014Contech Engineered Solutions LLC
CV41 NTECH ii8i5NEGlenn ,OR9g
Portland, OR 7z202o
ENGINEERED SOLUTIONS RESUBMI www.ContechES.com
November 13, 2019
Kassandra N. Zohn, E.I.T.
Development Engineering, PLLC
821 Dock Street, Suite 207
Tacoma, WA 98402
DEC 0 2 2019
M.M UNrTD FEDERAL Wqy
CO
EVELOP'ME;NT
Re: Filterra System Review — Northlake Court Project
Dear Ms. Zohn:
Contech Engineered Solutions, LLC has reviewed the plans prepared by Development Engineering, PLLC dated 11/17/17
for the Northlake Court Project. Based on the information provided for review, it appears that the Filterra system designed
for the project meet the following criteria required as part of the GULD:
1. The 6x8 Filterra Peak Diversion system appears to have been designed according to the appropriate treatment
flow rate and hydraulic conductivity of 70.92 in/hr allowed under the GULD.
2. The Peak Diversion configuration provides treatment and high flow bypass in one unit.
The system appears to be specified to include all other components of the Filterra system including impermeable walls, media at
proper depth, mulch layer, and approved plants; the system appears to be constructible; and the location of the Filterra on the
site appears to allow adequate maintenance access.
As a result, the Filters is expected to operate in accordance with the design intent as well as the Filterra GULD. Please note that
Contech has not reviewed the WWHM model or hydraulics of the collection system upstream or downstream of the Filtena
system for accuracy.
We are pleased to work with you on this project and look forward to our continued interactions throughout the planning
and installation process.
Please do not hesitate to call if you have any questions or require more information.
Sincerely,
Renna Esmabe, E.I.T
Stormwater Designer
Contech Engineered Solutions, LLC
503-258-3189 1 REsmabe@conteches.com
thl
CITY OF
Federal way
Centered on opportunity
July 2, 2019
Malkit Singh
37332 19th Place S
Federal Way, WA 98003
CITY HALL
33325 8th Avenue South
Federal Way, WA 98003-6325
(253) 835-7000
www.cityoffederalway.com
Jim Ferrell, Mayor
RE: Permit #19-101014-00-EN; Northlake Court Short Plat, Engineering Plan Review
Dear Mr. Singh:
The Public Works and Planning Department have reviewed the engineering plans submitted for the
referenced project. Prior to our approval, the following items shall be addressed:
Sheets C-1 through C-8, and C-10:
1) Add the City Approval Block, including the expiration note, to the lower right-hand corner of
these sheets, and include the city Permit Number (noted above) in the space provided in the
approval block.
Sheet C-1:
1) Provide a vertical benchmark with elevation, including the description, location and datum.
2) The street trees are shown to be within the separate landscape tract — the trees shall be in the
planter strip between the sidewalk and curb. There also needs to be trees shown along Military
Road, north of the plat road.
3) The plat road will need to be in a separate tract. City policy is that storm water ponds/facilities
within short plats are to be owned and maintained by the plat owners. Since the stormwater pond
will be private, and a majority of the stormwater into the pond is coming from the plat road, the
plat road will also need to be a private road in a separate tract.
4) Revise the right of way dedication line to cross the plat access road.
Sheet C-2:
1) No Public Works comments at this time.
Sheet C-3:
1) No Public Works comments at this time.
\CFW-HLE I \Applications\CS DC\PROD\docs\save\ 156611 _79301 _18113154.DOC
Sheet C-4:
1) Include the Wet Season Special Provisions notes from Appendix D of the 2016 King County
Surface Water Design Manual (KCSWDM).
2) A Construction Storm Water Permit is required to be obtained from the State Department of
Ecology (DOE). Provide a copy of the Construction Storm Water Pollution Prevention Plan
(CSWPPP) to the City.
3) While it appears that the project may be exempt from having to provide a temporary sediment
trap or pond, due to the direction of slope and proximity to the neighboring properties, a
temporary sediment trap is recommended. The trap should be located away from the infiltration
pond location. At a minimum, a sediment trap should be sized and shown on the plans, with a
note that the trap shall be constructed if weather, time of year, and/or duration of construction
activities, warrant it's installation.
Sheet C-5:
1) No Public Works comments at this time.
Sheet C-6:
1) Provide a vertical scale for the profile view.
2) Show and identify, on the plan view, the existing edge stripe and edge of pavement line.
3) Indicate that the curb return radiuses are 35-feet.
4) Provide a %-street cross-section for Military Road. The section should show all existing and
proposed improvements, with dimensions, and include the pavement saw -cut line location. (Refer
to redline plan).
5) Provide flow -line elevations (with STA/OFFSET) at the locations highlighted on the plan sheet.
6) Provide STA/OFFSET's for the locations shown on the plan sheet.
7) Show the existing ramp and asphalt transition that's located at the end of improvements
constructed for the Northlake Rim plat, and indicate that it shall be removed, and replaced with
sidewalk, and to match existing.
8) The curb and gutter at the south end of improvements should not have an angle point/taper.
9) Provide an enlarged detail of the proposed ramp/transition at the south end of improvments.
10) Indicate that the ramps at Military and plat entrance are to be per City standard detail 3-4, and
include and reference the detail in the plan set.
11) Locate and show the existing overhead utility poles and down -guys that are along, and just south
of, the property frontage. Add a note that the existing overhead utilities along the frontage are to
be relocated underground.
,CFW FILE I' Applications`CSDC, PROD'docs'saveI 156611 79301 _ 18113154. DOC
12) Locate and show the existing fire hydrant along the frontage.
13) Refer to comments, above, regarding street trees.
14) It appears that some portion of Military Road, north of the plat road, might drain into the plat road
and therefore enter the infiltration pond. Was the pond sized to take this runoff? Would it be
beneficial to add a CB to the north of the plat road, and connect it to the CB near Military and S
330th Place?
Sheet C-7:
1) Provide a vertical scale for the profile view.
2) Indicate what elevations are being given at the bottom of the profile view — are these
existing/proposed centerline, or flow line, or something else?
3) Indicate the type of catch basin (CB) for CB's #1, 3, and 4.
4) Additional CB's are required at the end of the cul-de-sac. Refer to the 2016 King County Road
Standards, page 7-4, item `K'.
5) Indicate the slope for the pipe between CB's #3 and 4.
6) It's not very clear how the Filterra unit can be installed as shown - It appears that the plant well
will be located in the gutter line.
7) Provide the curb radiuses for the curbs entering the cul-de-sac.
8) A stop sign, street name/number sign, and private road sign are required at the intersection with
Military Road. Include City standard details (enclosed).
9) Will individual lot driveway approaches be constructed as part of the roadway improvements? If
so, please show them, and reference and include City standard detail drawing 3-6. If not, then a
note should be added that indicates that the final lift of asphalt roadway will be installed only
after all driveway approaches have been constructed. Additionally, the owner will be required to
provide a bond that covers the estimated cost of the final lift.
10) Provide horizontal curve data for the road centerline.
11) Per the 2016 King County Surface Water Design Manual (KCSWDM), Section 5.2, page 5-50, a
pre -settling facility is required upstream of the infiltration pond, that has the capacity of 0.25
times the basic water quality design volume.
12) An access road is required to the pond inlet structure, with the first 20-feet paved.
13) Add a second pond section that's cut 90 degrees to Section AA, but also include the inlet pipe and
CB 1.
14) Add a rip -rap pad at the pond inlet, and provide a detail.
• CFWFILEI Applications CSDOPROD'dots,save,156611_79301_I8113154.DOC
Sheet C-8:
1) Refer to the comment above, regarding the Filterra unit.
Sheet C-9:
1) No Public Works comments at this time.
Sheet C-10:
1) Use the most current (2019, enclosed) City standard street section detail drawings. Highlight on
detail 3-2K, the `Minor' arterial pavement section.
2) Add other City standard details to this sheet (or on additional sheets as necessary), as requested in
comments above.
Other:
1) The Technical Information Report (TIR) indicates the pond side slopes are 4:1, yet the plans
indicate 3:1. Please either revise the plans or revise the pond analysis using 3:1 side slopes.
2) We will need a letter or other confirmation from Contech, indicating that they have reviewed and
concur with the water quality facility design and layout.
3) A street lighting plan that meets the City standards, is required to be submitted to the City for
review and approval, and will need to be a part of the final engineering approval. Please submit a
street lighting plan, including City standard details. Details and a street light plan checklist are
enclosed.
4) Bonding is required for all street frontage improvements along Military Road, as well as all on-,
and off -site TESC measures. Please complete the enclosed Bond Quantities Worksheet with your
next submittal.
5) The owner will need to complete and return either the enclosed Performance/Maintenance Bond
or Assignment of Funds in Lieu of Bond information sheets, so that City staff can develop the
bond documents.
Planning Department comments (Leila Willoughby -Oakes, Associate Planner, 253-835-2644,
leila.willoughby-oakes@cityoffederalway.com):
1. Please submit a preliminary landscaping plan
Military Road South in a separate tract(s). T:
evergreen and deciduous trees with large shn
protection measures) and removal plans.
depicting 10 feet of Type III landscaping along
pe III landscaping is composed of a mixture of
)s and ground cover, include tree retention (tree
2. The applicant to receive Forest Practices approval prior to clearing and grading activities.
\CF W FILE I' Applications' CSDC` PROD'docs�save,15661 1 _79301 _ 131 13154. DOC
3. Provide information on any proposed grade changes that might adversely affect or endanger trees
on the property and/or adjacent properties, and specifications to maintain them pursuant to FWRC
19.120.140.
4. Post site development work - contact the project planner for final short plat requirements in
order to record. Submit an updated title report, recent within 30 days.
Please revise the plans as necessary, and submit 3 copies of the revisions, along with all other requested
information.
If you have any questions on the Planning Department comments, please contact the project planner listed
above. Questions regarding all other comments should be directed to the undersigned at (253) 835-2734,
or kevin.peterson@,cityoffederatwU.com.
Sincerely,
Kevin Peterson
Sr. Engineering Plans Reviewer
KP:ss
Enc: Redline plans
City Standard details 3-2K, 3-2W, 3-2Z, 3-3, 3-4, 3-11, 3-38, 3-39, 3-39a, 3-39B, 3-40, 3-41, 3-45, 3-49, 3-50, 3-51, 3-
54, Street light review checklist, Bond Quantities Worksheet, Performance/Maintenance Bond Information Sheet,
Assignment of funds in Lieu of Bond Information sheet
c: Leila Willoughby -Oakes, Associate Planner
Project file (kp)
Day file
`CFW FI LE I `,ApplicationvCSD0 PROD' dots, save, 15661 1 _79301 _ 1 S 1 13154. DOC
CITY OF
� Federal
October 22, 2019
Malkit Singh
37332 19th Place S
Federal Way, WA 98003
Way
CITY HALL
33325 8th Avenue South
Federal Way, WA 98003-6325
(253) 835-7000
www. cityoffederalway. com
Jim Ferrell, Mayor
RE: Permit #19-101014-00-EN; Northlake Court Short Plat, Engineering Plan Review
Dear Mr. Singh:
The Public Works and Planning Department have reviewed the revised engineering plans submitted on
August 9th for the referenced project. Prior to our approval, the following items shall be addressed:
Some of the following comments are repeated from our July 2, 2019 letter. The original comment(s) are
in italic font. New and/or additional comments/questions are in standard font:
Sheet C-6:
1) Revise the sidewalk configuration at the north end of the Military Road frontage improvements.
There's an existing down -guy that falls within the new sidewalk.
2) It appears that some portion of Military Road, north of the plat road, might drain into the plat
road and therefore enter the infiltration pond. Was the pond sized to take this runoff? Please
provide a response.
Sheet C-7:
1) It's still not clear how the Filterra unit will be capable of treating the storm water that's collected
in CB's #3 and #4, given that the profile shows both the inlet and outlet pipes at the same invert
elevation, and the detail does not seem to have the option of accepting a pipe as an inlet into the
vault at an elevation that allows water to filter through the treatment media.
2) The vault is also located in the `wing' of the pond access driveway — it needs to be located
outside of any portion of the driveway.
3) Revise the callout for the Filterra vault — it's currently called out as a Type 1 CB.
4) Provide additional horizontal curve data for the road centerline: PC (STA), PT (STA), Length,
and DELTA angle.
Other:
The following comments are repeated from our July 2, 2019 letter. The original comment(s) are in italic
font, with additional comments in standard font:
1) We will need a letter or other confirmation from Contech, indicating that they have reviewed and
concur with the water quality facility design and layout. Please submit this at your earliest
convenience.
2) A street lighting plan that meets the City standards, is required to be submitted to the City for
review and approval, and will need to be a part of the final engineering approval. Please submit
a street lighting plan, including City standard details. Details and a street light plan checklist
are enclosed. A complete street lighting plan, that meets City standards, shall be prepared by an
engineering firm that is qualified to prepare such plans. Please submit these plans at your earliest
convenience.
3) Bonding is required for all street frontage improvements along Military Road, as well as all on-,
and off -site TESC measures. Please complete the enclosed Bond Quantities Worksheet with your
next submittal. This information was not provided with the last submittal. Please submit this at
your earliest convenience.
4) The owner will need to complete and return either the enclosed Performance/Maintenance Bond
or Assignment of Funds in Lieu of Bond information sheets, so that City staff can develop the
bond documents. This information was not provided with the last submittal. Please submit this at
your earliest convenience.
Planning Department comments (Leila Willoughby -Oakes, Associate Planner, 253-835-2644,
leila.willoughby-oakes@cityoffederalway.com):
1. Please submit a preliminary landscaping plan depicting 10 feet of Type III landscaping along
Military Road South in a separate tract(s). Type III landscaping is composed of a mixture of
evergreen and deciduous trees with large shrubs and ground cover, include tree retention (tree
protection measures) and removal plans. This information was not provided with the last
submittal. Please submit this at your earliest convenience.
2. The applicant to receive Forest Practices approval prior to clearing and grading activities.
Please revise the plans as necessary, and submit 3 copies of the revisions, along with all other requested
information.
If you have any questions on the Planning Department comments, please contact the project planner listed
above. Questions regarding all other comments should be directed to the undersigned at (253) 835-2734,
or kevin.peterson@cityoffederalway.com.
Sincerely,
Vex m_
Kevin Peterson
Sr. Engineering Plans Reviewer
KP:ss
Enc: Redline plans
c: Leila Willoughby -Oakes, Associate Planner
Project file (kp)
Day file
i
DLv ELOPMENT ENGINEM, �G, PLLC
August 6, 2019
Malkit Singh
37332 —19th Place South
Federal Way, Washington 98003
2306 A Street
Tacoma, Washington 98402
(253) 228-0513
www.de-civil.com
Response Letter —City Comments
Proposed Short Plat
Military Road South
Federal Way, Washington
PN:1521049081
Job: 17-236 Military Plat.RL3
This letter provides our responses to comments received from the City of Federal Way dated July 2,
2019 for the Northlake Court plat.
Public Works —Sheets C-1 throw h C-8 and C-10
1. City approval block added to all plan sheets.
Public Works — Sheet C-1
1. Vertical benchmark and datum added.
Street trees moved to be in the planter strip between sidewalk and curb (sheet C-2).
Plat road now referred to as "tract D".
4. Proposed ROW designation now crosses the plat access road.
Public Works — Sheet C-2
1. No comments to address.
Public Works — Sheet C-3
1. No comments to address.
Public Works — Sheet CA
1. Wet season special provision notes added (sheet C-11).
2. Noted that CSWPPP is required to be submitted to the city prior to receiving a construction
stormwater permit.
3. Sediment trap depicted and sizing provided should it be necessary.
Public Works — Sheet C-5
1. No comments to address.
Public Works — Sheet C-6
1. Vertical scale added.
2. Existing edge of pavement added to plan view.
3. Curb radius (35 feet) added to both sides of driveway approach.
4. Half street cross section for Military road added (sheet C-10).
5. Flowline elevations added at all eight points indicated on redlined plans. See plan view and ramp
details on sheet C-6.
6. Stations and offsets added at all eight points indicated on redlined plans. See plan view and
ramp details on sheet C-6.
17-236 Military Plat.RL3
November 27, 2018
Page 2
7. Notes added at beginning and end of asphalt ramp improvements to match existing.
8. Angle point/taper removed, curb and gutter continues along same alignment.
9. Two ramp details added to show additional details and proposed ramps per city standard.
10. City of Federal Way standard detail drawing 3-4 added to plan sheet C-12.
11. Overhead utilities and guy poles depicted.
12. Existing fire hydrant added, see sheet C-9.
13. Fire hydrant and trees depicted on sheet C-9.
Public Works - Sheet C-7
1. Vertical scale added.
2. Note added for which elevations are existing and which are proposed finished grade.
3. Type of catch basin added (all type 1).
4. Catch basin analysis to be provided by Contech.
5. Pipe slope between catch basins 3 and 4 added on plan view (sheet C-7).
6. Additional details for Contech Filterra system added. The system itself is a catch basin that has
the option to have an additional line piped in for treatment. We will be piping in the upstream
catch basins into this unit. Contech has several aesthetic options for their Filterra systems, some
with trees or shrubs, and some with grasses located under the grate.
7. Additional curve radiuses added.
8. Stop sign callout and street sign/private road sign on sheet C-6. Both items depicted on sheet C-
7 without callout.
9. Driveway approaches will not be constructed at this time. Note added regarding final lift of
asphalt roadway to be installed after driveway approaches have been constructed. Noted that
owner will be required to prepare a bond for final lift.
10. Curve data added for road centerline.
11. The Contech Filterra system provides enhanced basic water quality treatment, thus meeting the
requirement for presettling.
12. Access road added, note that first 20 feet must be paved.
13. Existing profile on sheet C-7 extended to include the entirety of the infiltration pond. No new
profile has been added.
14. Rip rap pad and detail added. See sheet C-XX for rip rap detail.
Public Works - Sheet C-8
1. Additional details for Contech Filterra system added. The system itself is a catch basin that has
the option to have an additional line piped in for treatment. We will be piping in the upstream
catch basins into this unit. Contech has several aesthetic options for their Filterra systems, some
with trees or shrubs, and some with grasses located under the grate.
Public Works - Sheet C-9
1. No comments to address.
Public Works -Sheet C-10
1. Detail 3-2K added on sheet C-10 and titled Military Way Road section.
2. Details added to sheet set.
Public Works - Other Comments
1. Plans revised to be 4:1 side slopes.
2. Letter from Contech provided; at time of submittal Contech has received plans for review to
ensure system has adequate capacity.
T �
17-236 Military Plat.RL3
November 27, 2018
Page 3
3. Lighting plan is now on sheet C-9.
4. Bond quantities worksheet completed and provided with submittal.
5. Owner has completed performance/maintenance bond information sheets.
Planning — Other Comments
1. Landscaping plan completed and submitted by others.
2. Noted that applicant to receive forest practices approval prior to clearing and grading may
commence.
3. No proposed grade changes are anticipated to adversely impactor endanger trees onsite or on
neighboring properties.
4. Noted to contact project planner for final short plat requirements in order to record.
We trust this is sufficient for your current needs. Should you have any questions, or require additional
information, please contact us at your earliest convenience.
Respectfully submitted,
Development Engineering, PLLC
Glen Coad, PE
Owner
KNZ
Doc ID:17-236 Military Plat.RL3
DE -CIVIL, PLLC
RESUBMITTED
DEC 0 4 2018
Revised: November 28, 2018
March 2, 2018
Malkit Singh
'31232-7� '
INTRODUCTION
CfTY OF FEDERAL WAY
COMMUNITY DEVELOPMENT
Geotechnical Report
Proposed Short Plat
Military Road South
Federal Way, Washington
P N : 152104-9081
Job: 17-236 Military Plat.GR
P.O. Box 446
Tacoma, WA 98401
(253) 228-0513
www.de-civil.com
This report presents the results of our geotechnical investigation and engineering recommendations for
the proposed short plat to be located on Military Road South in the city of Federal Way, Washington.
We understand that you intend to short plat the property into 6 individual lots. Part of the site
improvements will include the creation of the new lots, road improvements, stormwater infrastructure
and general utility infrastructure. The general location of the site is shown on the attached Site Vicinity
Map, Figure 1.
Our understanding of the project is based on our discussions with you, and our November 22, 2017 site
visit. We understand that you are in the process of subdividing the property for the purpose of
constructing new residential building(s) on the additional lots. We further understand that the buildings
will be constructed utilizing conventional wood framing and spread concrete footings. Clearing and
grading is expected to be limited to that required to maintain access to the site.
SCOPE
The purpose of our services is to evaluate the surface and subsurface conditions at the site as a basis for
assessing potential adverse impacts to and from the adjacent steeply sloped areas of the site. Specifically,
our scope of services for the project included the following:
1. Reviewing the available geologic, hydrogeologic and geotechnical data for the site area.
2. Addressing the appropriate geotechnical regulatory requirements for the proposed site
development.
Subsurface explorations were completed as part of this assessment.
SITE CONDITIONS
Surface Conditions
The subject site is located on Military Road South in the city of Federal Way, Washington. The site is
irregular in shape, encompassing approximately 2.06 acres of area. The site is currently undeveloped
and is well vegetated with trees. The site generally slopes down from southwest to northeast at slopes
of 5 to 10 percent. Total topographic relief across the parcel is approximately 25 feet. The property is
bounded by a residential neighborhood to the north and east, by a wooded residential property to the
south, and by Military Road South to the west.
17-236 Military Plat.GR
March 2, 2018
Page 2
Site Soils
The USDA Natural Resource Conservation Service Web Soil Survey for King County mapped the soils in
the area as Alderwood gravelly sandy loam (AgB, AgC), which derives from glacial drift outwash on
slopes of 0 to 15 percent. These soils are known to have a "very low to moderately low" capacity to
transmit water.
Site Geology
The Geologic Map of the Poverty Bay 7.5' Quadrangle, King and Pierce Counties, Washington, by Booth,
Waldron, and Troost maps the site as being underlain by till (Qvt). Usually consisting of massive silt- or
sand -rich matrices, till is deposited by glacial outwash. An excerpt of the above referenced map is
included as Figure 4. Based on our site observations, the near surface soils area inconsistent with the
mapped soils.
Geologic Hazard Areas- per City of Federal Way Chapter 19.145 Article II
The city of Federal Way defines "Geographically hazardous" areas as areas susceptible to erosion, land
sliding, seismic, or geological events. Section 19.145.220 restricts development on or within 50 feet of a
geologically hazardous area. The width of prescriptive setbacks from these hazardous areas is
dependent upon the characteristics of the critical area. There are no geologically hazardous areas
mapped on or near the property. There are no erosion hazards mapped on the site. The site is mapped
as Alderwood, with slopes of no more than 20 percent. These soils are known to have a "slight" erosion
hazard.
Subsurface Explorations
As mentioned on October 3, 2017 we were on site and observed the excavation a total of 6 test pits in
the area of the proposed development. The test pits were excavated by a track mounted excavator
operated by a licensed earthwork contractor. The test pits extended to maximum depth of
approximately 10 feet below existing ground surface. The test pits were located in the field by our
representative by pacing from existing site features such as property corners and adjacent roadways and
fences. The approximate location of the test pits are indicated on the attached Site Plan Figure 2.
A geotechnical engineer from our office continuously monitored the excavations, maintained logs of the
subsurface conditions encountered in each test pit, obtained representative soil samples, and observed
pertinent site features. Representative soil samples obtained from the test pits were placed in sealed
plastic bags and taken to our laboratory for further examination and testing, as deemed appropriate.
Based on our experience in the area and extent of our explorations in the area it is our opinion that the
soils encountered in the test pits are generally representative of the soils at the site.
Subsurface Conditions
Our test pits encountered consistent subsurface conditions that somewhat contradicted the geological
mapping stratigraphy. The stratigraphy across the site as observed in our test pits consisted of 1 foot of
topsoil overlying loose to dense medium sand and gravel. We interpret the native surficial soils to be
inconsistent with the soils mapped by USDA. The soils encountered were visually classified in
accordance with the Unified Soil Classification System (USCS) described on Figure 5. The test pit logs are
included as Figures 6.
Groundwater Conditions
During our October 3, 2017 explorations, no groundwater seepage was observed. Perched groundwater
typically develops when the vertical infiltration of precipitation through a more permeable soil is slowed
at depth by a deeper, less permeable soil type. Since no impermeable soil was encountered, we expect
17-236 Military Plat.GR
March 2, 2018
Page 3
that perched groundwater sill not be present on the site. Fluctuations in the local groundwater levels
will occur in response to precipitation patterns, off -site construction activities, and site utilization.
CONCLUSIONS
Based on our site evaluation, it is our opinion that the construction of the proposed building can be
safely carried out without significant risk.
Site Preparation
Areas to be graded should be cleared of deleterious matter including any existing structures,
foundations, abandoned utility lines, debris and vegetation. The portions of the site covered with
vegetation should be stripped of any forest duff and organic -laden soils, based on our test pits, stripping
depths of 1 to 2 feet should be anticipated. These materials can be stockpiled and later used for erosion
control. Material that cannot be utilized on the site should be removed from the site.
Where placement of fill material is required, the stripped/exposed subgrade areas should be compacted
to a firm and unyielding surface prior to placement of any fill. Excavations for debris removal should be
backfilled with structural fill compacted to the densities described in the "Structural Fill" section of this
report.
We recommend that a member of our staff evaluate the exposed subgrade conditions after removal of
vegetation and topsoil stripping is completed and prior to placement of structural fill. The exposed
subgrade soil should be proof -rolled with heavy rubber -tired equipment during dry weather or probed
with a 1/2-inch-diameter steel rod during wet weather conditions.
Any soft, loose, or otherwise unsuitable areas delineated during proof -rolling or probing should be
recompacted, if practical, or over -excavated and replaced with structural fill, based on the
recommendations of our site representative. The areas of old fill material should be evaluated during
grading operations to determine if they need mitigation; recompaction or removal.
Structural Fill
All material placed as fill associated with mass grading, as utility trench backfill, under building areas, or
under asphalt pavement should be placed as structural fill. The structural fill should be placed in
horizontal lifts of appropriate thickness to allow adequate and uniform compaction of each lift. Fill
should be compacted to at least 95 percent of MDD (maximum dry density as determined in accordance
with ASTM D-1557).
The appropriate lift thickness will depend on the fill characteristics and compaction equipment used.
We recommend that the appropriate lift thickness be evaluated by our field representative during
construction.
The suitability of material for use as structural fill will depend on the gradation and moisture content of
the soil. As the amount of fines (material passing US No. 200 sieve) increases, soil becomes increasingly
sensitive to small changes in moisture content and adequate compaction becomes more difficult to
achieve. During wet weather, we recommend use of well -graded sand and gravel with less than
5 percent (by weight) passing the US No. 200 sieve based on that fraction passing the 3/4-inch sieve,
such as Gravel Backfill for Walls (9-03.12(2)). If prolonged dry weather prevails during the earthwork and
foundation installation phase of construction, higher fines content (up to 10 to 12 percent) will be
acceptable. Material placed for structural fill should be free of debris, organic matter, trash and cobbles
greater than 6-inches in diameter. The moisture content of the fill material should be adjusted as
necessary for proper compaction.
17-236 Military Plat.GR
March 2, 2018
Page 4
Suitability of On -Site Materials as Fill
During dry weather construction, any non -organic on -site soil may be considered for use as structural
fill; provided it meets the criteria described above in the structural fill section and can be compacted as
recommended. If the soil material is over -optimum in moisture content when excavated, it will be
necessary to aerate or dry the soil prior to placement as structural fill.
The native soils in the site generally consisted of fine sand and gravel. These soils are generally
comparable to "common borrow" material and may be suitable for use as structural fill provided the
moisture content is maintained within 3 percent of the optimum moisture level.
We recommend that completed graded -areas be restricted from traffic or protected prior to wet
weather conditions. The graded areas may be protected by paving, placing asphalt -treated base, a layer
of free -draining material such as pit run sand and gravel or clean crushed rock material containing less
than 5 percent fines, or some combination of the above.
Temporary Excavations
All job site safety issues and precautions are the responsibility of the contractor providing services/work.
The following cut/fill slope guidelines are provided for planning purposes only. Temporary cut slopes will
likely be necessary during grading operations or utility installation.
All excavations at the site associated with confined spaces, such as utility trenches and retaining walls,
must be completed in accordance with local, state, or federal requirements. Based on current
Washington Industrial Safety and Health Act (WISHA, WAC 296-155-66401) regulations, the shallow
upper soils on the site would be classified as Type C soils.
According to WISHA, for temporary excavations of less than 20 feet in depth, the side slopes in Type C
soils should be laid back at a slope inclination of 1%2H:1V or flatter from the toe to the crest of the slope.
It should be recognized that slopes of this nature do ravel and require occasional maintenance. All
exposed slope faces should be covered with a durable reinforced plastic membrane, jute matting, or
other erosion control mats during construction to prevent slope raveling and rutting during periods of
precipitation. These guidelines assume that all surface loads are kept at a minimum distance of at least
one half the depth of the cut away from the top of the slope and that significant seepage is not present
on the slope face. Flatter cut slopes will be necessary where significant raveling or seepage occurs, or if
construction materials will be stockpiled along the slope crest.
Where it is not feasible to slope the site soils back at these inclinations, a retaining structure should be
considered. Where retaining structures are greater than 4-feet in height (bottom of footing to top of
structure) or have slopes of greater than 15 percent above them, they should be engineered.
This information is provided solely for the benefit of the owner and other design consultants and should
not be construed to imply that Development Engineering, PLLC assumes responsibility for job site safety.
It is understood that job site safety is the sole responsibility of the project contractor.
Foundation Support
Based on the subsurface soil conditions encountered across the site, we recommend that spread
footings for the new buildings be founded on dense to very dense native soils or on structural fill that
extends to suitable native soils.
The soil at the base of the footing excavations should be disturbed as little as possible. All loose, soft or
unsuitable material should be removed or recompacted, as appropriate. A representative from our firm
17-236 Military Plat.GR
March 2, 2018
Page 5
should observe the foundation excavations to determine if suitable bearing surfaces have been
prepared, particularly in the areas where the foundation will be situated on fill material.
We recommend a minimum width of 2 feet for isolated footings and at least 16 inches for continuous
wall footings. All footing elements should be embedded at least 18 inches below grade for frost
protection. Footings founded as described above can be designed using an allowable soil bearing
capacity of 2,000 psf (pounds per square foot) for combined dead and long-term live loads. The weight
of the footing and any overlying backfill may be neglected. The allowable bearing value may be
increased by one-third for transient loads such as those induced by seismic events or wind loads.
Lateral loads may be resisted by friction on the base of footings and floor slabs and as passive pressure
on the sides of footings. We recommend that an allowable coefficient of friction of 0.40 be used to
calculate friction between the concrete and the underlying soil. Passive pressure may be determined
using an allowable equivalent fluid density of 300 pcf (pounds per cubic foot). Factors of safety have
been applied to these values.
We estimate that settlements of footings designed and constructed as recommended will be less than
1 inch, for the anticipated load conditions, with differential settlements between comparably loaded
footings of 1/2 inch or less. Most of the settlements should occur essentially as loads are being applied.
However, disturbance of the foundation subgrade during construction could result in larger settlements
than predicted.
Floor Slab Support
Slabs -on -grade, if constructed, should be supported on the medium dense native soils or on structural
fill prepared as described above. Areas of significant organic debris should be removed.
We recommend that floor slabs be directly underlain by a capillary break material with minimum 6-inch
thickness of coarse sand, pea gravel, or gravel containing less than 3 percent fines. The drainage
material should be placed in one lift and compacted to an unyielding condition.
A synthetic vapor barrier is recommended to control moisture migration through the slabs. This is of
particular importance where the foundation elements are underlain by the silty till, or where moisture
migration through the slab is an issue, such as where adhesives are used to anchor carpet or tile to the
slab.
A subgrade modulus of 400 kcf (kips per cubic foot) may be used for floor slab design. We estimate that
settlement of the floor slabs designed and constructed as recommended, will be 1/2 inch or less over a
span of 50 feet.
Pavement Subgrades
Pavement subgrade areas should be prepared as previously described in the "Site Preparation" section
of this report. The prepared subgrade should be evaluated by proof -rolling with a fully -loaded dump
truck or equivalent point load equipment. Soft, loose or wet areas that are disclosed should be
recompacted or removed, as appropriate. Over -excavated areas should be backfilled with compacted
structural fill and sub -base material.
Seismic
According to the Seismic Zone Map of the United States contained in the current version of the IBC
(International Building Code), the project site is located within Seismic Risk Zone 3. Based on the
subsurface conditions observed at the site, we interpret the upland portion of the structural site
17-236 Military Plat.GR
March 2, 2018
Page 6
conditions to correspond with a seismic Soil Profile type Sc, (Site Class "C") Table 1615.1.1 in the IBC
documents. This is based on the likely range of equivalent SPT (Standard Penetration Test) blow counts
for the soil types observed in the site area. Structures located at the site that are constructed in
accordance with the appropriate seismic criteria will have the same risk as other similarly designed
structures in the Puget Sound area.
Site Drainage
All ground surfaces, pavements and sidewalks at the site should be sloped away from structures. The lot
should also be carefully graded to ensure positive drainage away from all structures and property lines.
Surface water runoff from the roof area, driveways, perimeter footing drains, and wall drains, should be
collected, tightlined, and conveyed to an appropriate discharge point.
Based on our site evaluation, it is our opinion that the infiltration of stormwater at the site is feasible for
preliminary design purposes we recommend that a long-term design infiltration rate of 8 inches per
hour be used for sizing any on -site retention facilities if required. Roof infiltration trenches should be
sized based on the "medium sand" soil classification.
Pilot Infiltration Test
On March 2, 2018 we returned to the site to perform a full-scale infiltration test, also known as a Pilot
Infiltration Test (PIT). During the test we excavated a pit to the depth of approximately 3 feet exposing
the existing sand and gravel soils. The test was located in the north east area of the site (see Figure 2
Site Plan) and was performed in general conformance with the City drainage manual requirements and
determined an average field measured rate of 28.5 inches per hour. The correction factors should be
0.5 for testing, 0.65 for geometry and 0.9 for plugging, resulting in a long-term design infiltration rate of
8 inches per hour. After the test we excavated the bottom of the pit an additional 5 feet and found no
evidence of groundwater or mounding after the test was performed.
LID Feasibility
The following table presents our recommendations for various Best Management Practices (BMPs) for
various Low Impact Development (LID) BMPs.
BMP
Viable?
Limitations or Infeasibility Criteria
Lawn and Landscape Areas
T5.13: Post Construction Soil Quality and
Yes
None.
Depth
Roofs
T5.30: Full Dispersion
No
The site likely will not have sufficient room for
the required dispersion flow paths.
T5.10A: Downspout full infiltration
Yes
Infiltration appears to be feasible for the site, as
systems.
such roof drains may be tightlined to an
individual infiltration trench.
Bio Retention
Yes
This BMP also feasible for the same general
reasons as for full infiltration.
T5.10B Downspout Dispersion systems
Limited
This BMP may be feasible but will likely not be
employed as additional mitigation will be
required beyond the capacity of a dispersion
system.
T5.10C Perforate stub connections
Limited
Feasible but most likely not used.
Other Hard Surfaces
17-236 Military.Plat.GR
March 2, 2018
Page 7
T5.30 Full Dispersion
No
Sufficient native vegetation does not exist on
the site given the.total amount of proposed
development.
T5.15 Permeable Surfacing
Yes
The site soils do support the use of permeable
surfacing.
Bio Retention
Yes
This BMP is also feasible for the same general
reasons as for full infiltration.
T5.12: Sheet Flow Dispersion
Limited
No flooding or erosion impacts are anticipated.
T5.11 Concentrated flow dispersion
However, this BMP is likely not feasible given
the size of the lot and the limited available areas
for dispersion of runoff.
LIMITATIONS
We have prepared this report for DMP Development and other members of the design team for use in
evaluating a portion of this project. The data used in preparing this report and this report should be
provided to prospective contractors for their bidding or estimating purposes only. Our report,
conclusions and interpretations are based on data from others and limited site reconnaissance, and
should not be construed as a warranty of the subsurface conditions.
Variations in subsurface conditions are possible between the explorations and may also occur with
time. A contingency for unanticipated conditions should be included in the budget and schedule.
Sufficient monitoring, testing and consultation should be provided by our firm during construction to
confirm that the conditions encountered are consistent with those indicated by the explorations, to
provide recommendations for design changes should the conditions revealed during the work differ
from those anticipated, and to evaluate whether earthwork and foundation installation activities comply
with contract plans and specifications.
The scope of our services does not include services related to environmental remediation and construc-
tion safety precautions. Our recommendations are not intended to direct the contractor's methods,
techniques, sequences or procedures, except as specifically described in our report for consideration in
design.
If there are any changes in the loads, grades, locations, configurations or type of facilities to be
constructed, the conclusions and recommendations presented in this report may not be fully
applicable. If such changes are made, we should be given the opportunity to review our
recommendations and provide written modifications or verifications, as appropriate.
17-236 Military Plat.GR
March 2, 2018
Page 8
Within the limitations of scope, schedule and budget, our services have been executed in accordance
with generally accepted practices in this area at the time this report was prepared. No warranty, express
or implied, should be understood.
We trust this is sufficient for your current needs. Should you have any questions, or require additional
information, please contact us at your earliest convenience.
Respectfully submitted,
Development Engineering, PLLC
Glen Coad, PE
Owner
CH:WGC
Doc ID:17-236 Military Plat.GR
Attachments: Figure 1— Vicinity Map
Figure 2 —Site Plan
Figure 3 — SCS Soil Survey
Figure 4 — USGS Geology Map
Figure 5 — Soils Classification Chart
Figure 6 — Soil Test Pit Logs
Not to Scale
DE -CIVIL, PLLC
P.O. Box 446
Tacoma, WA 98401
Ph (253) 228-0513
www.de-civil.com
Approximate Location
Site Vicinity Map
Military Plat
XXX Military Rd S
Federal Way, Washington
Job No: 17-236 December 2017 Figure 1
Not to Scale Approximate Location
DE -CIVIL, PLLC USDA Soils Map
P.O. Box 446
Tacoma, WA 98401 Military Plat
Ph (253) 228-0513 XXX Military Rd S
www.de-civii.com
Federal Way, Washington
Job No: 17-236 1 December 2017 1 Figure 3
ti AN 10
Ii
�
Qw
1 �7t�
+ t
_�.
l " �
le �
� ' S
r
Approximate Location
Not to Scale
DE -CIVIL, PLLC Geological Map
P.O. Box 446
Tacoma, WA 98401 Military Plat
Ph (253) 228-0513 XXX Military Rd S
www.de-civil.com
Federal Way, Washington
SOIL CLASSIFICATION
CHART
SYMBW
TYPICAL
MAJOR DWIONS
ORAPlt LE"M
DESMPTIONS
•
vrtv 004.E000MMS. ov u
CAN
1 CLEAN
• I..ie GWy
SAIU4iYUlSS
' CRAWLGVANUS
I AM
.� .
GIAMLY artn.o.4rrty
e`r0'
GP
VDOfLYaatsoDt4Yw
puKL•ti1TO K(ZrKi
9o1L5
o o v
__ppp
C'OAfchE Ga:AVElS VNTrr
i
91-CrV' MCKPAIL -SAND -
GR,tlkr0 rfCC.-A.n x�c FrvEB
UT VGC7 ALS
L$
rwaCT'a"
RS�. NSWD C •.•] YAK �ArOtN
(�(�`
� rr "A G%Wfi • SAr.e
.'.'� SWNaLLetLW SA'tOI tlUV.EiIY
CIE" SAMOQ° br,.mi
SAND 4'J--
�E�rW464. UTRCabMtfi
lee iH.i SAMY I ! ' Sp 1 roorav:AUDCD 6Not.
Scots Cdnv(.AY awl
t
rADre rrw+x+a BNID61vITH .S•t � TV SAW, wa•sar
06COAAM FINES arRT1Jo3
r;'ASW. to. • MrrpbWiwuwr C-YfY &Vft INW - MAY
rt r/r'K1i Sc Mornpu
_ I
�47rr:�vC TALrS IIIXKSL9uR
UL rurSY h1L MlMsxrn
Iw�s-err
.. - woa�.ea►.sriic:. �v
SILTS lSUO LVM CL w:_+wrn,Aaro�r.9A.rC..Y
rpm AMD LM TkW la C�.•i SAr1Cy CAYy W. R�•r
GRAINED CLAYSu+�r;-ns
SOIL$ OL caarvtrcwtrAw�c«awc
Cln' CLAYS CS LDF OJKTICT'
r�,a nKrceo..a-
uwtnaersrc MH owowAmme rLTv=!i
r.Ar _3 141 ecru
WOO`
AlTS Vv,o Lrr • � wO+a4rC Cur'L7 NF
CLAYS LAcwlwn��w • r CH rsw.Tlurr
DA"N C CLAYS "3a rE t?
I OH YSDUI 10 MC+ p bTCW
n1r�ItY ORCrANIG SOte• - P' j 'ur5.. rrw.9. OAy+uwC CON
Ives s lNn+
d tilers
NOTE: lAtA6-e rfibols are used to i+dcale baderine or dual UW dandwsst>�s
Sampler Symbol Descriptions
. Z44nch J.D. %pint barrel
" Standard Penetration Tat (SPT)
Shelby tube
Piston
rDirect.Push
® Bulk or grab
Blovroount Is recorded for driven samplers as the number
Of bows required to advance sampler 12 inches (or
distance noledi• See exploration log for hammer weight
and drop_
A'P' Indicates sampler pushed using the weight of the
WH rig.
ADDITIONAL MATERIAL SYMBOLS
SYMBOLS TYPICAL
GRAPH LETTC DESCII P ONS
CC Cement Concrete
AC j Asphalt Concrete
CR Crushed Rudd
Quarry Spalls
TS I Forest DuAGW
Measured groundwater level In
exploration, well, or plezorneter
T Groundwater observed at time of
exploration
Parched water observed at time of
exploration
W Measured free product in well or
_ plozometer
Stratigraphic Contact
Df6tina contact between soil strata or
geologic unks
- Gradual change between roil strata or
geologic units
— — — Approximate ICCOQicn of soli strolls
change within a geologic son unit
Labgra1ory J Field Tests
%F
Percent Ores
AL
AtterboM limits
CA
Chemical snelysb
CP
Laboratory compttldien test
CS
Consolidation test
DS
Dlreet shear
KA
ttydromelloranalysls
UC
Moisture content
MD
M olswre content and dry density
OC
Organic content
PM
Permeability or hydraulic conductivity
PP
Polite! penetrometer
SA
Sieve analysis
TX
TriaxW romprvssion
uC
Unconfined compression
VS
vans shear
Sheen Cla62i6sation
NS
No Visible Sheen
SS
Slight Sheen
MS
Moderate Steen
NS
Navy sheen
NT
Not Tested
N07E. The -m:er rust safer w the r,==<on un the mpoet Yost a'ld lro'%s of exDbry5oM !or a proper Lmderstandrrg of rubs;rfam card lime
L%.-rxrcc*nz on dw 'o-r app3 only al the spoor tY: axobrati ani to v a ll-ne die e,tptoraP.o n ware rnada: fty are not warranlod to be
rmprosr.,'.nfi v Cf SLbaL." face Cen0131X s W. alhcr UcarunS or I,TAS
DE -CIVIL, PLLC
P.O. Box 446
CY Tacoma, WA 98401
Ph (253) 228-0513
www.de-civii.com
Soil Classification Chart
Military Plat
XXX Military Rd S
Federal Way, Washington
Job No: 17-236 December 2017 Figure 5
Test Pit TP-1
Location: (See Figure 2)
Depth ft. Soil Type Description
0 — 0.5 Topsoil
0.5 — 2.0 SM Weathered Till
2.5-6.0 SM Till
Terminated at 6 feet below ground surface.
No caving or seepage observed.
Test Pit TP-2
Location: (See Figure 2)
Depth ft. Soil Type Description
0 — 1.0 Topsoil
1.0-10.0 SM Brown sand and gravel (loose)
Terminated at 10 feet below ground surface.
No caving or seepage observed.
Test Pit TP-3
Location: (See Figure 2)
Depth ft. Soil Type Description
0 — 1.0 Topsoil
1.0 — 8.0 SM Tan silty sand, gravel and cobble (dense)
Terminated at 8.0 feet below ground surface.
No caving or seepage observed.
Logged by WGC,10/3/17
DE -CIVIL, PLLC
P.O. Box 446
Tacoma, WA 98401
Ph (253) 228-0513
www.de-civil.com
Test Pit Logs
Military Plat
XXX Military Rd S
Federal Way, Washington
Job No: 17-236 1 December 2017 1 Figure 6
Test Pit TP-4
Location: (See Figure 2)
Depth ft. Soil Type Description
0 — 1.0 Topsoil
1.0— 10.0 SM Tan sand and gravel (loose)
Terminated at 10.0 feet below ground surface.
No caving or seepage observed.
Test Pit TP-5
Location: (See Figure 2)
Depth ft. Soil Type Description
0 — 1.0 Topsoil
1.0 — 3.0 SM grey sand and gravel (slightly cemented) to (loose)
3.0 — 9.0 SM sand and gravel (loose) to (medium dense)
Terminated at 9 feet below ground surface.
No caving or seepage observed.
Logged by WGC,10/3/17
DE -CIVIL, PLLC
P.O. Box 446
Tacoma, WA 98401
Ph (253) 228-0513
www.de-civii.com
Test Pit Logs
Military Plat
XXX Military Rd S
Federal Way, Washington
Test Pit TP-6
Location: (See Figure 2)
Depth ft. Soil Type Descri tion
0 — 1.0 Topsoil
1.0 — 3.0 SM sand and gravel w/ silt (slightly cemented)
3.0 — 5.0 SW grey silty sand, with gravel and cobbles (dense, cemented)
Terminated at 3.0 feet below ground surface.
No caving or seepage observed.
Logged by WGC,10/3/17
DE -CIVIL, PLLC
P.O. Box 446
Tacoma, WA 98401
Ph (253) 228-0513
www.de-civii.com
Test Pit Logs
Military Plat
XXX Military Rd S
Federal Way, Washington
,-�,EVel_DPMENT ENG,�I��RI NCi, �LLC
P.O. Box 446
Tacoma, WA 9840
Ph (253) 228-0513
www.de-civil.com
May 31, 2019
Mr. Malkit Singh Infiltration Pond Capacity
13405 SE 236th PI Proposed Short Plat
Kent, WA 98030 Military Road S
Federal Way, Washington
PN: 152104-9081
Job: 17-236 Military Plat.RL
This letter provides our assessment of the capacity of the proposed infiltration pond for the proposed
Northlake Court Plat located near 45t' Way S and Military Road in the City of Federal Way,
Washington. The plat includes an infiltration pond in the northeast corner of the site to manage the
runoff from the proposed road. At this time we have been unable to secure an off -site easement for
the pond emergency overflow though any neighboring properties.
Based on the WWHM calculations for the pond the 100yr peak water surface elevation is
approximately 6 inches. Given that the freeboard of the pond as designed is over two feet it is our
opinion that sufficient pond capacity is available to mitigate for the lack of an emergency overflow.
We trust this is sufficient for your current needs. Should you have any questions, or require
additional information, please contact us at your earliest convenience.
Respectfully -submitted,
Development Engineering, PLLC
-4�
J
Glen Goad, PE
Owner
WGC
Doc ID: 17-236 Military Plat.EL
RF EaVE® PERMI'�APPLICATION
CITY OF PERMIT CENTER + 33325 8th Avenue South + Federal Way, WA 98003-6325
Federal AA v MAR 0 5 2019 253-835-2607 + FAX 253-835-2609 + permitcente cDcityoffederalway.com
CITY OF FEDERAL WAY
'OMT" 'T1
PERMIT NU TIER TARGET DATE
SUITE/UNIT #
SITE ADDRESS
XxX
PROJECT VALUATION
TYPE OF PERMIT
NAME OF PROJECT
PROJECT DESCRIPTION
Detailed description of work to
be included on this permit only
PROPERTY OWNER
CONTRACTOR
APPLICANT
PROJECT CONTACT
(The individual to receive and
respond to all correspondence
concerning this application)
PROJECT FINANCING
When value is $5,000 or more
(RCW 19.27.095)
ZONING ASSESSOR'S TAX/PARCEL N
R S 9 r�` T.5 � L1
El BUILDING El PLUMBING El MECHANICAL El DEMOLITION ElFNGINEERING El FIRE PREVENTION
llol?- '��� e- � Lf/L7—
MAILING ADDRESS
*2 _-2, t. eta . 2-7
NAME --7- R
MAILING ADDRESS 1
CITY
WA STATE CONTRACTOR'S LICENSE #
NAME �J
MAILING ADDRESS
CITY
NAME
ADDRESS
CITY
NAME
MAILING ADDRESS, CITY, STATE, ZIP
ZIP IS f p D
STATE ZIP
EXPIRATION DATE
I I
STATE I ZIP
STATE I ZIP
PRIMARY PHONE
23 -a IZ
E-MAIL 1,
PHONE
E-MAIL
FAX
FEDERAL WAY BUSINESS LICENSE #
PRIMARY PHONE
E-MAIL
FAX
PRIMARY PHONE
E-MAIL
FAX
OWNER -FINANCED
PHONE
I certify under penalty of perjury that I am the property owner or authorized agent of the property owner. I certify that to the best
of my knowledge, the information submitted in support of this permit application is true and correct. I certify that I will comply with
all applicable City of Federal Way regulations pertaining to the work authorized by the issuance of a permit. I understand that the
issuance of this permit does not remove the owner's responsibility for compliance with local, state, or federal Iaws regulating
construction or environmental laws.
I further agree to hold harmless the City of Federal Way as to any claim (including costs, expenses, and attorneys' fees incurred in
the investigation and defense of such claim), which may be made by any person, including the undersigned, and filed against the city,
but only where such claim arises out of the reliance of the city, including its officers and employees, upon the accuracy of the
information supplied to the city as a part of this applicatio t.
SIGNATURE: J—DATE
r r
PRINT NAME: —
Bulletin #100 — January 29, 2016 Page 1 of 2 k:\Handouts\Permit Application
MECHANICAL PERMIT
Indicate how many or each ttjpl
AIR HANDLING UNITS
AIR CONDITIONER
BOILERS
COMPRESSORS
DUCTING
to be installed or relocated as
FANS
FIREPLACE INSERTS ....
FURNACES
GAS LOG SETS
GAS PIPING
PLUMBING PERMIT
Indicate how marty of each iMe of
fwure to be installed or rely
BATHTUBS (or Tub/Shower Combo)
LAVS (Handsinks)
DISHWASHERS
RAINWATER SYSTEMS
DRAINS
SHOWERS
DRINKING FOUNTAINS
SINKS (Kitchen/Utility)
HOSE BIBBS
SUMPS
GENERAL INFORMATION
VALUE OF MECHANICAL WORK
f this ra'ect. Do not inClude existing flxtureS to remain
GAS PIPE OUTLETS OTHER (Describe)
HOODS (Commercial)
HOT WATER TANKS (Gas)
REFRIGERATION SYST
WOODSTOVES
VALUE OF PLUMBING WORK
as part o this project. Do not include exfstinq ►5x cares to remain.
TOILETS WATER PIPING
URINALS OTHER (Describe)
VACUUM BREAKERS
WATER HEATERS (Electric)
WASHING MACHINES TOTAL FIXTURES
CRITICAL AREAS ON PROPERTY? WATER PURVEYOR SEVIERDPURVEYOR VALUE OF EXISTING IMPROVEMENTS
-e 4kw1--N
EXISTING/PREVIOUS USE LOT SIZE (In Square Feet) EXISTING FIRE SPRINKLER SYSTEM? I PROPOSED FIRE SUPPRESSION SYSTEM?
❑ Yes ❑ No ❑ Yes ❑ No
RESIDENTIAL - NEW OR ADDITION
AREA DESCRIPTION (in square feet) EXISTING PROPOSED
BASEMENT
FIRST FLOOR (or Mobile Home)
SECOND FLOOR
COVERED ENTRY
DECK
GARAGE ❑ CARPORT ❑
OTHER (describe)
Area Totals EXISTING PROPOSED
TOTAL J FOR OFFICE USE
TOTAL
"NEW HOMES ONLY"
ESTIMATED SELLING PRICE $ T OF BEDROOMS
COMMERCIAL - NEW/ADDITION
AREA DESCRIPTION Area in Occupancy Group(s) s
S uare Feet P Y P()
Construction # of
Additional Information
Type Stories
NEW BUILDING
ADDITION
COMMERCIAL - REMODEL/TENANT IMPROVEMENTS
AREA DESCRIPTION Area in Occupancy Group(s) s
Square Feet P Y P()
Construction # of
Additional Information
I)Ta Stories
TOTAL BUILDING
TENANT AREA ONLY
L_ PROJECT AREA ONLY
Bulletin #100 — January 29, 2016 Page 2 of 2 k:\Handouts\Permit Application