17134 TALBOT RD.PDF11111111111111
13535
17134 TALBOT RD
- 1 �� R
ADDRESS: 1-71 -3
TAX ACCOUNT/PARCEL#:
BUILDING PERMIT (NEW STRUCTURE) #: 8,1-p 2 k::�,
COVENANTS (RECORDED) FOR:
CRITICAL AREAS.#:q,�j-C)(Zj DETERMINATION: [:]Conditional Waiver XStudyRequired Owaiver
CRITICAL AREAS #: DETERMINATION: Conditional Waiver El Study Required Waiver
DISCRETIONARY PERMIT #'S:
DRAINAGE PLAN DATED:
PARKING AGREEMENTS DATED:
EASEMENT(S) RECORD FOR:
s
PERMITS (OTHER - list permit jj3(Z
PLANNING DATA CHECKLIST DATED:
SCALED PLOT PLAN DATED:
SEWER LID FEE $:
LID #:
SHORT PLAT FILE:
LOT:
BLOCK:
SIDE SEWER AS BUILT DATED:
SIDE SEWER PERMIT(S) #:
GEOTECH REPORT DATED:
STREET USEIENCROACHMENT PERMIT #:
FOR:
'WATER METER TAP CARD DATED:
OTHER:
L:\TEMP\DST's\Forms\Jana's Street File Checklist 5-14-08.doc
PONNING DATA STREET FILE
SINGLE FAMILY RESIDENTIAL
Name:
(T-P ,Z-70 q0 I 0c)( 0 q 16,0
k 06:�
Date: S 11 13
---- -- _ �[11:E
Site Address:
2-6 1'
Plan Check ff. 90190 A, -
Project Description: Ar emi (5 rl%�) 0 t'�
lrZoning�
e-- CIL.
Reduced Site Plan Provided: U(YENO)
I
ing: 12 -�- t 2-
Map Page: Corner Lot: (YES / 0 0/ NO)
Critical Areas Determination ff: X A7 i q(4 z- - (
54 Wn �'o
t2�Study Required
waiver
SEPA Determination:
(f -,�Vb AV �� Rey 2, 4 0 150-P
X-Exempt ly-le r-?d
El Needed (for over 500 cubic yards of grading) -r(,Wkt �01
0 Fee 0 Checklist 0 APO List with notarized form J—Q I MpOr +- q/157
Setb,3ck5
/V
S�ide:
/(0
0,
1A/
Q- Actual Setbacks
Side:
Side: 0
Relf—
N�-Detached Structu'res;.-->
Rockeries:
Fences[Trellises:
El Bay Wiindows/Pr 'ecting Modulation: < 30" ,6,,,,1-
6", 0
Stairs/Deck: 04 ve 5"'V
Suildin Height
Datum Point:
q— 0�-7e
Datum Elevation:
h S, r e
Maximum Height Allowed:Z—
0
Actual Height:
L
bther
Parking Required:
Parking Provided: (03ec�
Lot Area:
Maximum Lot Coverage: 35% Proposed: Iq So
Lot Coverage Calculations: housp, q,-,rkJe- cl& d(- I r 1- 6 -7 1 �0 -f /0 r-
Abu created: (YES /(!gp
Subdivision:
Legal Nonconforming Land Use Determination Issued: (YES 00
t
r-1K 2� r-- 10 0- 5r (qk�
P-'- q-0, -7 77. 1q:
A44�(
0 1.-&
0m,
Plan Review By:
PlarvWN Data Form 04-11-06.doc
ellll-rr ff. I M FrOity of Edmonds
0 1 REETCrAurrea Notice of Decision
Applicant:
-
C� V\Q
Property Owner:
Critical Area File #:
I . -o(2-(
(IM- ms
Permit Number:
Z10 13[2 r� Iq
d10-
Site Location:
7t 3,1 ��o �-M
Parcel Number:
2 -7oqo '70o I o / Y3o
Project Description:
_j-Q
Ne C
E] Conditional Waiver. No critical area report is required for the project described. above.
There will be no alteration of a -Critical Area or its required buffer.
The proposal. is an �Ilowed activity pursuant to ECDC 23.40.220, 23.50.220, and/or
23.80.040.
The proposal is exempt pursuant to ECDC 23.40.230.
Fj Erosion Hazard. Project is within erosion hazard area. Applicant must prepare an erosion and
sediment control plan in compliance with ECDC 18.30.
,tT—Critical Area Report Required. The proposed project is within a critical area and/or a critical area
buffer and a critical area report is required. A critical area report has been submitted and evaluated
for compliance with the following criteria pursuant to ECDC 23.40.160:,
I The proposal minimizes the impact on critical areas in accordance with, ECDC 23.40-.120,
Mitigation sequencing;
2. The proposal does not pose an unreasonable threat to the public health, safety, or welfare
on or off the development proposal site;
3. - / The proposal is consistent with the general purposes of this title and the public interest;
4. Any alterations permitted to the critical area are mitigated in accordance with ECDC
23.40.110, Mitigation requirements.
5. The proposal protects the critical area functions and values consistent with the best
available 'Science and results in no net loss of critical functions and values; and
6. _/ The proposal is consistent with other applicable regulations and standards.
F� Unfavorable Critical Area Decision. The proposed project is not exempt or does not adequately
mitigate its impacts on critical areas and/or does not comply with the criteria in ECDC 23.40.160 and
the provisions of the City of Edmonds critical area regulations. See attached findings of
noncompliance.
tj Favorable Critical Area Decision. The proposed project as described above and as shown on the
attached site plan meets or is exempt from the criteria.in' ECDC 23.40.160, Review Criteria, and
complies with the applicable provisions of the City of Edmonds critical area regulations. Any
subsequent changes to the proposal shall void this decision pending re -review of the proposal.
F1 Conditions. Critical Area specific condition(s) have been applied to the permit number referenced
above. See referenced permit number for specific condition(s).
Reviewer
Signature
,6� // 7
Date
Appeals: Any decision to approve, condition,or deny a development proposal or other activity based on the
requirements of critical area regulations may be appealed according to, and as part of, the appeal procedure, if any,
for the permit or approval involved.
Revised 12/16/2010
�0'
CITY OF EDMONDS
BUILDING DEPARTMENT
RK D—M6�F-IR — ,
)RESS ' 1:113 1 T4 1102 t '12C)
lArt (7
NER Oil J4ApL�j
w Pi ANNING
Ap ROVED DATE: S-1 V-/3
BL G. OFFICIAL
TPERMIT NUMBER
NOTE:
REFER TO GEOTECHNICAL ANALYSIS
BY ENG1,NE.ERING FOR SOIL MANAGEMENT AND
-GRADING INFORMATION.
�TOP OF BANK
8* '12'56" W—
q 41)
N k7' 53'10" W—R.
50
EROSION
To �,01J�E 7 1 � 10 112,",
3 5-6"
'S
To PA 1760 35'-6"
TOSETBACK'
0
Tb
4
,-�[9 7 _`
35'SETBACK FROM TOP OF SLOPE
(PER GEOTECH)
101-IYI
PROPERTY LINE 195.00'
[109.01
'u
E 110),61 el 1,01etback
Rks'l :NCE',
16'-Or' d)
GARAOE'�,11
En
C14
2,
T-T V,1
-9
0
ie L_
B [101.,p] 161, Setbaqk
A [I'dO.01 PROPERT LINE 205.00'
101-cy,
PROVIDE SILT FENCE EXISTING'
AT LOW SIDE FOR FOOTPRINT
EROSION CONTROL (DASHED)
Cm -r Af,3o cAP Tim s'Ey%k_9
A-r PfMPCyz_T\/ UNP— %'a"rL r
1-14F pCMb OF rJM SrrK,_1AMA.9F
N / Site Plan 'DOM0
CONCRETE
DRIVEWAY
PROVIDE 24'QUARRY SPALLS FOR
CONSTRUCTION ENTRANCE,
7 \ Scale: 1 50' 0 1 1 0 5 i 0 100
I IS RESPONSIBLE
O�. AND DRAINAGE
IMPERVIOUS SURFACE CALCULATIONS:
RESIDENCE FOOTPRINT
1552 SF_'
COVERED ENTRY
60 SF
DECK
102SF
PATIOS, WALKWAYS. DRIVEWAYS
870 SF
GARAGE .
672 SF
TOTAL IMPERVIOUS
3266SF
LOT AREA
16422SF
LOT COVERAGE
20%'
ELEVATION CALCULATIONS:
A BENCHMARK &PROPERTY CORNER 100.0'
ESTABLISH AND PRESERVE BENCHMARK FOR ELEVATION
CONTROL (REFER TO ELEVATIONS FOR HEIGHT RESTIRCTION)
B SE CORNER @) 101.0'
C SW CORNER 9 95.2'
D NW CORNER 0 9�.2'
PARCEL B
10' ROAD, WATER LINE
AND POWER EASEMENT
'1-, 01%
t-A StA koh")OC-Tr "ECEIVED
AV(J, W wPrr�Oz- 5eDLvr-e.L`1r')E
pa-loa- -T,-� rvtu < FEB 2 2.2013
*A.rCE"S. -ra VoArr� DEVELOPMENT SERVICES
I-S am%,kud-et) a M2A t-36-t COUNTER
ot:-�Mb AfOD tAt,-\! , -024k tri (30
Project Info:
17134 Talbot Road
Edmonds, Washington 98026-5051
27040700104300
Lots 2 & 3 - Sct 7, Twn 27 N, Ra 04 E
.30' 30
U
3JT1 301
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0 QO
0
Ln
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City of Edmonds
RECEIVED
JUL 03 1997
COMMMITY SERMES
"W,W CRITICAL AREAS CHECKLIST
The Critical Areas Checklist contained on this form is
to be filled out by any person preparing a
Development Permit Application for the City of
Edmonds prior to his/her submittal of a development
permit to the City.
The purpose of the Checklist is to enable City staff to
determine whether any potential Critical Areas are, or
may be, present on . the subject property. The
information needed to complete the Checklist should
be easily available from observations of the site- or
data available at City Hall. (Critical Areas inventories,
maps, or soil surveys).
An applicant, or his/her representative, must fill out
the checklist, sign and date it, and submit it to the
City. The City will review the checklist, make a
precursory site visit, and make a determination of the
subsequent steps necessary to complete a development
permit application.
Please submit a vicinity map along with the signed
copy of this form to assist City staff in finding and
locating the specific piece of property described on
thi's form. In addition, the applicant shall include
other pertinent information (e.g., site plan, topography
map, etc.) or studies in conjunction with this Checklist
to assist staff in completing their preliminary
assessment of the site
I have completed the attached Critical Areas Checklist and attest that the answers provided are factual, to the
best of my knowledge (fill out the appropriate column below).
Owner/Applicant: .; -;
-Z .
Name
Street Addr'e"ss
City State Zip
�5+� - - !4�1
Telephone I
Signature
Date
c: reception\j ana\cacl. doc
Applicant Representative:
Name
Street Address
IEVMONP-5, �) A !MO20
City State Zip
6. /Z. 5�Fv
Date 4F 1
(over)
-(7
CA FrLE NO..
Critical Areas CheAst
--------------------------------------------------------------
Site Information (soils/ topography/ hydrology/ vegetation)
1.' Site Address/ Location: A��*V
2. Property Tax Account Number: Z-704 - 045
3. Approximate Site Size (acres or squar I feet): �21 11500
4. Is this site currently develop �t; no.
If yes; how is site devel d? �J6! L.E_ 5W1114 /ZE:151 PE�JC5
op
)p
5. Describe the zen r 1 si to gra-p'hy. C�eck all that apply-
'�/ 1 si I
at/ I ss ha 5-feet elevation ch er e tlre�
v
v
crlliig� slopes on site gene'r 7tlgankl rtical rise of 10-feet over a
%ton sit� o�more)than 15% and less than 30% ( a vertical
it 0'
"t
of io-fe- o tAaorLan al distance of 33 to 66-feet).
S;�ggrea r than 30% present on site (a vertical rise of 10-feet over
rigontal-distance of less than 33-feet).
Ze ibe):
6. Site contains areaN year-round standing water: H6 ; Approx. Depth:
7. Site contains areas of seasonal standing water: A16 ;Approx. Depth: —
What season(s) of the year?
8. Site is in the floodway &16 flood
9. Site contains a creek or an are I
0
year-round? AJ 0 FI 7s ale
10. Site is primarily: forestedCwa-
urban landscaped (lawn,shrubs
11. Obvious wetland is present onj
0 of a water course.
across the grounds surface.1 Flows are
(What time oj ne?
.j
City of Edmonds
Critical Areas Determination
Applicant: Zeldenrust Determination #: CA-97-121
Project Name: Permit Number:
Site Location: 16926 Talbot Rd Property Tax Acct #: 0727-041-043-0005
Project Description:
non -project speciflc
A siteinspection has revealed a site which appears to contain I slopes of 40010 or greater with a
vertical elevation chanae of more than 20 feet.
Based on the above findings, it is determined that there is potentially a steep slope critical area on
or adjacent to the site. A Critical Areas Study is required to delineate the boundaries of this
potential critical areas, the buffers'and setbacks. for the steep slopes, a licensed surveyor must
create a topographic map of the site which indicates all areas which slope 40% or more and have
a vertical gain of 20 feet or more within the 40% slopes. The map must also show the location of
the steep slope buffers and setbacks.
,If the- property owner wishes to apply for a specific development permit which they feel would
not impact the Critical Areas located on the site, they may submit'their proposal to the Planning
Department for review. If the Planning Department finds that the proposed development permit
will not adversely impact a Critical Area or its buffers, a conditional waiver may be issued on a
project by project basis.
John Bissell August 7, 097
Name Si ture Date
The City of Idmoods
APPLICATION
for
SEDE SEWER PERMT
1,1EW CONSTRUCTION, REPAIRS
OWNER ... / . . ......... 7W-V-4-0-12, ---------
ADDRESS
FILE
161i�r zf ---ki w - L , kJ �,--
EASEMENT No. ---
No.(............. PERMIT ---------
CONTRACTOR
LEGAL DESCRIPTION: LOT No.. ............ I ............ BLOCK No - ------- -- ----------- ---------------
Is
NAME OF ADDICTION
1?77WTc Hee
"Lab-, v -
Z-4
Nt
iE
1, 17
nn_ *z
J
fl V,
7- Nu
n
plibPER
0
R To-: I I A 37,.,35, N A* VO 13. 86 W
"27-
E.*: W,4*.-'c6r`-tP -N, 45�43t 101.1 Wi,"185 1� T06 th
to
-`niea n --th
411
-:43!'
52.
36? -45. 431 1 WE: -2
P
C;.:
-The final iisses6ment- roll is now in -the City,,Trea4urer's office for collection.-'.
This* is to advise that you may pay all or any portion, of -.your assessment until date shown above. After this dat� t&.�,
will, be Aivided into the number of installments ai noted dbove and. interest on the unpaid Oortion of the asses;ameni,W.1 *V,
lbstallikent. 'Interest will be. computed �on the'. unpaid balance for all subsequent installments.
'A yeirly statement will be �mailed to an -,owner's. paying on4 the instillment basis.
TO INSURE PROPER, CREDIT, MAIL OR,:BRING: THIS. NOTICE WITH YOU TO, CITY TREA
60
z
CITY OF EDMONDS
Call PRospect 6-1107 when work
CIVIC CENTER — WATER -SEWER DEPARTMENT is ready for inspection. (No inspec.
SIDESEWER PERMIT tions Saturday, Sunday or hcdldays.) N? 3837-
ADDRESS ............ 169.2.6 --- T.a_1b.q.t --- Ro-ad ..............................................................................................................................................
.. .... .. .. ..... .....
OWNER ........... Leila --- M ...... T.ay_1_Qr ........................................... coNTRAoToR ...... ..............................
Permission is granted ..... Se_P_te.Mbe.r ... ...... for ........................ days to REPAIR or CONNECT a side sewer
�xft,4 City Sewers in accordance with application on file and governing ordinances.
AaITENTION IS CALLED TO THE FOLLOWING:
NOTE No. 1—The owners of the property may obtain a permit to construct sewer inside property line. A licensed Side Sewer Contractor must
be employed to construct side sewer in street axea. Do not cover any portion of sewer before it has been Inspected.
NOTE No. 2—Obtaln full information regarding Ordinance 11.16.030 and Regulations governing side sewers when you get permit.
NOTE No. 3—Top of side sewer must have at least 30 inches coverage at property line and 12 Inches Inside property line; minimum grade of 2%.
No bends in grade sharper than 'A will be permitted.
NOTE No. 4—Trenches in street must be water settled and surface of street restored to original condition. Contractors shall be responsible for
failure due to Improper work which may develop within one year of completion.
NOTE No. S—It is unlawful to alter or do any other work than is provided for In the permit, or to do any work on the main sewer or its appur-
tenances except to Insert the pipe into the wye.
..STREET FILE -
Certificate of Occupancy
Building Division
.' C. I b -j -
This certificate is issued in accordance With the requirements of Section I 11'of the 20.12 International Building Code
certifying that at the time of issuance this single family residence was in compliance with the applicable provisions of
the codes and ordinances of the city regulating construction and use of buildings.
Description,: 64 - Single Family Residence -New
Site Address: 17134 TALBOT RD, EDMONDS Permit No: BLD20130190
Construction Type: VB - Parcel No: 27040700104300
Owner: LIEH & PING-YU CHANG Occupancy Group: R_3/U
12303 HARBOUR PT #S204
MUKILTEO, WA 98275
06/11/2015
uilding Official Date Issued
POST IN A CONSPICUOUS PLACE
0
CITY Of EDMONDS - ENGINEERING DIVISION
.SPECIAL INSPECTION AND TESTING AGREEMENT
PERMIT #- BLD20130190 - DATE: 8/2/13
PROJECT SITE ADDRESS: 17134 Talbot Rd
PROJECT NAME: Chan - New SFR
SPECIAL- INSPECTION AGENCY Geotechnical En2ineer - Liu & Associates
*One form must be completed by each Special Inspection Agency or Inspector.
SPECIAL -INSPECTIONS _REQUIRED: Special inspections are required for this project, as
applicable, in accordance with Title 18 Edmonds Community Development Code (ECDC). When
required,the project must be installed/constructed.per approved plans and specifications. The. owner or.
the registered design professional in charge shall employ an independent testing/inspection agency/special
inspector to perf6rm required special inspections . The special inspector shall be a qualified person with
competence for inspecting the specific type of construction or operation requiring special inspection. The
owner, registered. professional, contractor and special inspector/agency shall provide a special inspection
report detailing compliance with approved plans and specifications directly to the Engineering Division.
WORK REQURING SPECIAL INSPECTION: Special inspections will be required for the following
categories of work: FOR SPECIFIC INFORMATION REGARDING REQUIRED SPECIAL
INSPECTIONS SEE THE STATEMENT OF SPECIAL INSPECTION NOTED AS A CONDITION ON
THE BUILDING PERMIT AND/OR ON THE APPROVED PLANS.
Z Erosion Control RECEIVED
Z Drip Systems
Z Raingardens Aus 0 9 2013
DEVELOPMENT SERVICES
STFIEET FILE COUNTER
BEFORE A PERMIT CAN BE ISSUED: The owner, and contractor and special' inspector shall
complete this agreement and return to a Permit Coordinator prior to permit issuance.
APPROVAL OF SPECIAL INSPECTORS: Each special inspector shall be approved by the
Engineering Division prior to performing any duties or inspections. The credentials of the specific person
performing the inspection shall be submitted. When applicable, the company performing inspections
must be accredited by the American Association of State Highway and Transportation Officials
(AASHTO) RI 8.
Page 1 of 3
A. Duties and Resl)onsibilities of the Special Inspector
1. OBSERVE WORk
The special inspector shall observe the site work,for conform ' ance with the approved (stamped)
plans and specifications. Special inspections are to be performed as needed, to confirm that the
work being completed meets specifications and approved plans.
2. REPORT NONCONFORMING ITEMS
The special inspector shall bring non -conforming items to the immediate attention of the
contractor and engineer of record. The special inspector shall provide a report to the Engifteering
Division notifying of any items not resolved and/or not installed per the approved plans and
specifications..
It , ems not constructed per the approved plans and specifications will result in a review of the p lans
to determine what requirements will be needed for the project to meet'the necessary stormwater
requirements; such as removal and reconstruction, re -design of the stormwater 'management.
etc.
Final approval for the project will not occur until installation of all required improvements is
complete and accepted by the Special Inspector and the City.
3. FINAL CONSTRUCTION REPORT
The special inspector or inspection agency shall submit a final signed report or Certificate of
Compliance t I o the City stating that all items requiring special inspection and testing were fulfilled
and reported. The report shall also include a statement from the inspector stating tothe best of
his/her knowledge the project is in confo ' rmance with -the approved plans, specifications, and
.approved plan revisions, if any. Items not in conformance, unresolved items or any discrepancies
in inspection coverage (i.e., missed inspections, periodic inspection when continuous inspections
were required, etc.) shall be specifically addressed in this report.
B. Contractor Responsibilities
1. NOTIFY THE SPECIAL INSPECTOR OF ALL REQUIRED SPECIAL INSPECTIONS
It is the duty of the contractor to notify the special inspector when work is ready for special
inspection. Note, the items listed under the statement of special inspection on the building permit
and a's noted on the approved plans and specifications are required to have special inspections.
Adequate notice shall be provided by,the contractor so that the special inspector has time to
become familiar with the project. All work requiring special inspection must be approved prior to
concealing or covering said work.
2. PROVIDE ACCESS TO APPROVED PLANS
The contractor is responsible for providing the special inspector access to approved plans at the
jobsite.
3. RETAIN SPECIAL INSPECTION RECORDS
The contractor is responsible to retain at the j obsite all special inspection. records submitted *by the
special inspector.. These records are to be providea to the City Engineering inspector upon request
and upon completion of work.
C. City of Edmonds Entzineerin2 Division Responsibilities
1. APPROVE SPECIAL INSPECTION
The Engineering Division shall approve all Special Inspectors and special inspection requirements.
Page 2 of 3
0
MONITOR SPECIAL INSPECTIONS AND APPROVE REPORTS
Work re4ul-ring special inspevion and performance of special inspectors shall be monitored by the
Engineering Division Inspector. Engineering Inspector approval must be obtained prior to
placement of concrete or other similar activities in addit16n to that of the special inspector
3. FINAL APPROVAL
The Engineeri'ng, Division m4 provide final inspection approval aAer the special inspection
reporl(s) have been submitted and accepted by the CitN"
D. Owner Resnonsibilities
1, The project oumer or the engineer or,architect of record acting as the wwner's agent shall fund-
oj
special inspection services.
E.. Eggineer or Architect of Record Res1lonsibiUties
I. Prepare Statem. ' ent of Special Inspections,
2. Review the special inspection reports and provide corrective action for work that mky not conforni
to the approved plalls.
ACKNOWLEDGMENTS,
I haVe read and agree to cotnp(y Wth the ter"vs and conditions ff thiv agreentent.
Owner name
(pleaw print or typt�)
Sign Date
ature
U
.General Contractor Company/Owner name
(PIc-age Pr I nt or type)
Signature Date
'5 L-ull— i-u ASS.614'le 5, 34, C
Special Inspecto gen name J'� pleise print or type)
Signatur Date
Engineer of Record name
(pleasc print or type)
Signature Date
Return the original signed agreement to -
City of Edmonds Development Services Delimiment
121 5'h Avenue North, City Hall Second Floor
Edmonds, WA 98020
ACCEPTED BY CITY 20F
�?IIDEINIZGINEERLNG DIVISION:
City Official Signature 4- Date
Title: f-/U6-qA3z f Aj6 7-fcAAJ1C1AiU-
Pagu 3 of 3
City. of Edmon.ds'
Site Classification Worksheet
Page 1 of 2
E D
RECEIVE
FEB 2 2 2013
4;ELOPMENT SERVICES
The project's Site Classification will dictate the specific stormwater management
requirements applicable to your site. Completing this worksheet will help determine the amount of
regulated impervious surface and whether your project falls into the classification of a Small Site
(Category 1 or Category 2), or a Mnor Site. Please reference the Glossary (pp. 10- 11), Figures D and
E, 6)�. 8-9), and Examples (1)12. 11-12), to assist with completion of this worksheet.
1). Is Permeable Pavement' Proposed For Use on this Site? Yes No
Refer to Stonnwater "Supplement Chapter 5. 1
If YES, the subject area is to be considered impervious for initial site classification purposes. Include total
permeable pavement area in the calculation of Non -Regulated, Replaced and/or New impervious surface
areas in the table below.
2) Determine the Amount and Type of Existing & Proposed Impervious Surface for the Site
Refer to Stonnwater Supplement Chapter 2 and Fig. C I
Line 1: Identify the Non -Regulated Impervious Surface Area.
Line 2: Identify the Replaced Impervious Surface Area, dividing the total between Exempt and Regulated; either or both
may be zero. Note: For project classification purposes, Replaced Impervious may only be considered exempt
under certain conditions. Refer to the Glossary and Figure D.
I
Line 3: Identify the New Impervious Surface Area for your project. All impervious areas created post -July 7, 1977 or
after the date of annexation into the City are regulated & should be included in this total unless they can be
categorized separately as a Replaced -Regulated area.
Line 4: Enter the sum of the total Replaced -Regulated plus the total New impervious areas,
Line 5: Identify the total area currently mitigated by an existing city -approved stormwater management system.
Line 6: Enter the sum of the value in Line 4 less the value in Line 5 to identify the total Regulated area in which
stormwater controls have not yet been applied.
Line 7: Identify the total area proposedto be mitigated through'the use of Low Impact Development Techniques.
Line 8: Identify the total area proposed to be mitigated through conventional Stormwater Managpment Techniqtfes.
Provide a copy of the following table on the drainage plan sheet for the proposed project
Line
Type
-Area (square feet)
1.
Non- gulated
Exempt
Regulated
2. Replaced
3. New (Post 1977) 4 4 4 -3. 4 4 4 4 4
VN
----------
Total Regulated Impervious Area
4.
Mitigation reg Uired if in excess of 2000sf
5.
Total Area Mitigated by Existing Stormwater Management System(s)
Area Not Yet Mitigated
-32
6.
Regulated
7.
Area Proposed to be Mitigated by Low Impact Development Techniques
8.
Area Propos ed to be Mitigated through Co riventional SWM Techniques
1 (e.g. porous asphalt, porous concrete, paver blocks, concrete open ceHed paving grids, or plastic lattices filled with turf or stone)
Revised on 310512012
E72-SWM�Erosion_Control-03.05.12.d6c
Page 5 of 12,
Q:
A OV
City of'Edmonds
'Fity
Site Classification Worksheet
Page 2 of 2
Determine the Total Area of Land Disturbing Activity 4L5L&V sf
Refer to Stormwater S�pplement Chapter 8 1
14) Determine the Quantity of Grading, Fill and/or Excavation C—/XAS—cy
5) Will the project convert 3/4 Acre or More of Native Vegetation to Lawn or
Landscaeed Area? Yes M No
6) Identify the Watershed the Existing Site Runoff Discharges to
Refer to Stormwater S�Mlement Chg2ter 2.3
Based on Site Location and Watershed Map — Figure-C. Check all that apply.
A. Direct Discharge B. Creek or Lake B asin
o Edmonds Way Basin
p-,Puget Sound Basin
o Puget Sound Piped Basin
DETERMINE PROJECT CLASSIFICATION USING THE INFORMATION ABOVE
AND THE PROJECT CLASSINCATION CHART (Figure B, pg 4).
-�,Small Site - Category 1 El Small Site - Category 2 El Minor Site
Itormwater Supplement Stormwater Supplement Stormwater Supplement
Chapter 5 Chapter 5 Chapter 6
Revised on 310512012 E72-SWM—Erosion—Control-03.05.12.doc Page 6 of 12
July 22, 2013
Jonathan Richards
5105 Sterling Drive
Anacortes, Washington 98221
360.391.0832
jonathan_59@hotmail.com
PUBLIC WORKS DEPARTMENT
RE: Plan Check: BLD2013-0190 & -0191
17134 Talbot Road
Edmonds, Washington 98026-5051
Dear Jennifer Lambert,
RECEIVED
JUL 42 S 2013
DEVELOPMENT SERVICEF
COUNTER
This letter is to inform you that I personally made an attempt to get permission from B.N.S.F.
(Burlington Northern Santa Fe Railroad) to use their property for drainage discharge for the
Chang Residence at 17134 Talbot Road. In approximately October of 2012 1 had several phone
calls to discuss this option. I was directly told by their representative that they are "not
interested" in allowing the Chang's to have the requested drainage rights, even though there was
an existing building in place. I made attempts to explain reasons why they should be allowed but
was continually refused as they mentioned their concern about the impact on their railroad.
Thank you for all your help,
Jonathan Richards
RECEIVED
JUL -2'3- 2013
PEVELOPMENT SERVICES -
July 21', 2013COUNTER
Dear Jennifer Lambert,
We would like to inform you that after our meeting on July 5th, we
made a lot of phone calls to B.N.S.F. Railroad Company for seeking the
possibility of acquiring their permission even though they have rejected
my representative, Jonathan's request last year. We finally got to talk
with the storm water environmental department through the phone at (206)
6256037. They replied that they were not sure about our situations but it's
almost impossible to get the permission of discharging the storrn water to
their property. They strongly suggested us to use other options instead of
fighting for the pen-nission.
We feel deeply sorry for unable to get the permissions from either
BNSF railroad company or our two neighbors. There's only hope* if you
and your team will allow us to install an infiltration system (drip and rain
garden) on our property. Your favorable consideration on this matter will
be highly appreciated.
Sincerely yours,
A
Lieh Ching and Ping Yu Chang
Homeowners of 17134 Talbot Road
Edmonds, Washington 98026-5051
a 1 0
0
JULC�'
DEVELOPMENT SERVICES
July 22, 2013 COUNTER
To whom it may concern:
I do not give my permission for my neighbor Lieh-Ching Chang to tie into my drain line.
I originally agreed that they could tie into the line, but now that I understand the time, cost, and
inconvenience involved with making this happen, I am not willing to let them connect to my drain pipe.
Thank you,
� P,�-i4�
Julie Hunt
17160 Talbot Rd
Edmonds, WA 98026
A,
RECEIVED
JUL 22 ro' 2013
DEVELOPMENT SERVICESi
COUNTER
MARK G. BEARD
206.223.7014
beardm@lanepowell.com
July 22, 2013
Lieh Ching and Ping Yu Chang
Re: 17130 Talbot Road Drainage Easement
Dear Jackie and Gloria:
Since our earlier discussions regarding a possible drainage easement through our property,
we have consulted with an engineer who advises that it would not be in our best interest to do
so. Specifically, we are concerned that such an easement may have a detrimental effect on
our vested property rights with the BNSF railroad and the additional impact that additional
trenching would have on our front yard's stability and landscaping. We are very sorry for
this inconvenience and if there is anything else Letie and I can do to help you in your project
please do not hesitate to contact either of us.
Very truly yours
Mark and Leta Beard
999999.0040/5772616.1
GARY HAAKENSON
CITY OF EDMONDS MAYOR
121 5TH AVENUE NORTH - EDMONDS, WA 98020 - (425) 771-0220 FAX (425) 771-0221
Website: www.ci.edmondsma.us
DEVELOPMENT SERVICES DEPARTMENT
In c. 18,9,3 Planning - Esuil ding , Engineering
January 5, 2009
MEMO TO:
I
Snohomish County Assessor's Office
This letter is to inform you of an address correction. Please change the following Street
(Situs) Address and the Taxpayer Address:
From
16926 Talbot Rd
To
17134 Talbot Rd
We apologize for the Inconvenience this may cause you and greatly appreciate your
cooperation.
Occupancy: Residential Tax ID Number: 27040700104300
Subdivision: SEC 07 TWP 27 RGE 04
If you have any questions regarding this letter, please contact me at 425-771-0220 or
Harrison@ci-edmonds.wa.us.
Respectfully,
Senior Permit Coordinator
Edmonds Building Department
Cc: File
M
c.
0, .10
CITY OF EDMONDS
121 5TH AVENUE NORTH - EDMONDS, WA 98020 - (425) 771 -MO - FAX (425) 771-0221
. Website: www.ci.edmondsma.us
DEVELOPMENT SERVICES DEPARTMENT
Planning - Building - Engineering
May 6,2003
Mr. R W Zeldenrust
1505 NW 186TH ST
SHORELINE, WA 98177
Re: Address Change request
Dear Mr. Zeldenrust;
GARY HAAKENSON
MAYOR
S me&
a HEET FILE
This letter is to inform you that your request for an address change has been approved
by the City., Your address has been changed from 16926 Talbot Road toWUININU�b
Road. I will inform all City Divisions including Fire,Police, Utility Billifig, Public
Works and Building.
It is your responsibility to inform the Post Office, the Phone Company for Enhanced 911
emergency purposes and all other interested parties of this correction. We apologize for
the inconvenience this may cause you and greatly appreciate your cooperation.
Si.pc�rely,
)Lara Pathmatier
Permit Coordinator
Cc: Fire Department
Police Department
Utility Billing
Public Works
Building Official/Street File
L\Teffq)\DST's\Master Letters\Address Change
Incorporated August 11, 1890
Sister City - Hekinan, Japan
I,? C. 18()13
CITY OF EDMONDS
121 5TH AVENUE NORTH - EDMONDS, VVA 98020 (425) 771-0220 - FAX (425) 771-0221
Website: www6edmondsma.us
DEVELOPMENT SERVICES DEPARTMENT
Planning - Building - Engineering
April 28, 2003
Mr. R W Zeldenrust
16926 Talbot Road
Edmonds, WA 98026
Re: Address Change request
Dear Mr. Zelde](Imst;
GARY HAAKENSON
MAYOR
This lettei r� is! iio'_.i� A�fo'rm you that your request for an address change has been approved
by the Cit' ddres§ has been changed from 16926 Talbot Road to 17136 Talbot
y. Your a
R�ad.
I:wih �m`foirn ill'City Divisions including Fire,- Police, Utility Billing, Public
Works and Building.
It is your responsibility to inform the, Post Office,the Phone Company for Enhanced 911
emergency purposes and all other intere§ted parties of this correction. We apologize for
the inconvenience this may cause you:and greatly appreciate your cooperation.
YA
Lely,,
Lara Palmatier
Permit Coordinator
cc:. Tir.(�. Department
Police Departrilent.
jii,4 Billing
Public Works
BuildinR Official/Street File
L\Temp\DST's\M aster Letters\Address Change
Incorporated August 11, 1890
Sister City - Hekinan, Japan
GARY HAAKENSON
CITY OF EDMONDS MAYOR
121 5TH AVENUE NORTH EDMONDS, WA 98020 - (425) 771-0220 - FAX (425) 771-0221
Website: www.d.edmondsma.us
DEVELOPMENT SERVICES DEPARTMENT
Planning - Building - Engineering
May 6, 2003
Z� I HEET FILE
Mr. R W Zeldenrust
-1505 NW 186TH ST -
SHORELINE, WA 9817.7.
Re: Address Change request STREET FILE
Dear Mr. Zeldenrust;
This letter is to inform you that your request for an address change has been approved
by the City. . Your address has been changed froml-69-2-6 Talbot Road'to 17134 Talbot
Road. I will inform all City Divisions including Fire, -Police, Utihty� Billing, Public
Works and Building.
It is your responsibility to inform the Post Office, the Phone Company for Enhanced 911
emergency purposes and all other interested parties of this correction. We apologize for
the inconvenience this may cause you and greatly appreciate your cooperation.
Sinc-orely
Lara Palmatier
Permit Coordinator
Cc: Fire Department -
Police Department
Utility Billing
Public Works
Building Official/Street File
L\Ternp\DST's\Master Letters\Address Change
Incorporated August 11, 1890
Sister City - Hekinan, Japan
a -- t�
9
1�1
NIX lTajb0tVLo 'aa
TALBOT ROAD
414�
(oacq)
New q 4 cIr e s se-.S
RECEIVED
Ms. Jeannine Graf, Building Official
City of Edmonds Development Services A P1, 2 8
121 — 5h Avenue North BUILDING DEPT.
Edmonds, WA 98020-3145
Dear Ms. Graf,
We request that our present address 16926 Talbot Road be changed to a 171XX number. Our
residence is south of 171st Street S.W., and since addresses get larger to the south of street
numbers in south Snohomish County we feel that this is appropriate. We know that 17000
Talbot Road has recently been changed to 17160 Talbot Road, and 17702 Talbot Road has been
changed to 17150 Talbot Road. We know that 16920 Talbot Road is also requesting a change of
address. We feel that by receiving at 171XX number our neighborhood addresses will be in a
sequential pattern.
Thank you
Sincerely,
lj'�j 1�
-zc) � 6nv""
Ms. Jeannine Graf, Building Official RECEIV r-1 D
City of Edmonds Development Services
121-5 1h Avenue North A �'-61 2 8
Edmonds, WA 98020-3145 BUILDING DEP'r.
Dear Ms. Graf,
We request that our present address 16926 Talbot Road be changed to a 171XX number. Our
residence is south of 171't Street S.W., and since addresses get larger to the south of street
numbers in south Snohomish County we feel that this is appropriate. We know that 17000
Talbot Road has recently been changed to 17160 Talbot Road, and 17702 Talbot Road has been
changed to 17150 Talbot Road. We know that 16920 Talbot Road is also requesting a change of
address. We feel that by receiving at 171Y—X number our neighborhood addresses will be in a
sequential pattern.
Thank you
Sincerely,
STREET FILE
LIU& ASSOCIATES, INC.
Ge6technical Engineering Engineedng Geology Earth Science
June 10, 2015
RESUB
Dr. Lieh Ching Chang JUN 112015
Talbot Road
BUILDING DEPARTMENT
Edmonds,'WA 98026 C17Y OF EDMONDS
Dear Dr. Chaniz:
Subject: Responses toCity's Plan'Review Comments
:Charig.�R�sidence
17 134 Talbot: Road
Edmonds, W a-sihington
L&A Job No. 12"083
Regarding City's plan review comme nts, dated June 9, 2015, by W Kemen Lien, we
have ihe- f6llowingresponses:
1. Zoniniz. setback
t' 6 to 7,feet long, along the
Only a portion of the concrete- block wall, not more han
south side of 'the - subject pjtcject site had exceeded 3 1 feet. The: top blockshave
since'been',temoved. to teduce the height of &s.pd'rtion of the wall to'3 fe-et
maximum, as shoWn on attached photos.. The. blocks are 6 incli.high and there are
no more than 6 layers of blocks above the adjacent finish grade. Therefore, the
blookwaltis:.now.iii tompliance- with City's zonhig setbackcode. - i
2. Geotechnicdl Repoit
The grade separation along the south boundary Of the aL&VJ"X project from the
neighbor's yard was originally achieved by cons4uctioh of a landscape timber wall.
This timberwall. retained only a.narrow strip .of fill plabed to le-M. the grade -where
�J
theoriginal grad6within 1 to 3 feet of the south,boundary that dropp�� steep down'
towards -the, neigbbor's yard. This timber wall, however, had tilted since 'its
19213 KentakePlace NE Kenmore, WA: 98028
Phone
(425) 481-9134 Fax (426) 4862746
June 10, 2015
Dr. Lieh Ching Chang
L&A Job No. 12-083
Paae 2
construction. One of the City's inspectors demadded-th6t-'a..coiibrtte'block wall.be
constructed lo replace the timbef wall. Hence, a concrete'block was constructed
along the�soqth bound �of the site. This wall I . s MoSily one to two feet high, and
is now reduced to- no more than 3 feet. tallalong its entIr length.
With the above block wall, anot -her concrete bfock� wail has been
In conjunction w
constructed.off the mid way of the south block wall goMg east at abqut 7 feet -from
the ed p
.ge of the deck at .the back side of the house. The: urpose of this block wall
is to line fill placed between the deck and this will'to ra'l*s'e gtade* in.drder to reduce
the'hpight of the. deck to complianca with city's� co& The height of this wall is
about one foot tall or less. This work was also Slu gested by'one of city's
9
inspect ors.
The fill- Placed Within thq�'3 5 feet setback area from, to -of th Nuff. lined b the ,
P T' _y
above bloc . k walls, is from under 6 16 about 36'inches'thick'and is.'oilly covering a
small portion'of the setback area. Therefore, it is ourlopinion. that thisfill shotild
have no impact oAthp stability of the bluff
Please contact us,if you have 4,uestions.
Yours very
LIU!k.ASS
Ph.D., P.E,
J. S. (i lian).Liu
'IATE!
INC.
0
C,
)
�
m
LIU & ASSOCIATES, INC.
Geotechnical Engineering Engineefing Geology Earth Science
March 20, 2015 RECEIVED
MAY 19 2015
Dr. Lieh Ching Chang :Wink am 'TF1 DEVELOPMENT SERVICES
17134 Talbot Road Is COUNTER
Edmonds, WA 98026 1 f1tE LE
Dear Dr. Chang:
Subject: Correction for Compliance of Deck Height and Setback
Chang Residence
17134 Talbot Road
Edmonds, Washington
L&A Job No. 12-083
INTRODUCTION
We understand-thitt you were informed by Mr. Patrick Lawler, inspector with City of
Edmonds, that the deck constructed off the west side at the southwest comer of the house
of the subject residence exceeds the code allowed height of 30 inches above its adjacent
grade and that the guard rail along the south side of the deck is inside the required setback
of 10 feet from the south lot line of the property. We also understand that Mr. Lawler
informed you that the deck height issue can be resolved by raising the grade surrounding
the deck and that the setback issue can be corrected by removal of the deck guard rail. He
also pointed out that as long as the deck height is reduced to no more than 30 inches, hand
rail is no longer required for the deck. At your request, presented in this report are our
recommendations for implementing these corrections.
19213 Kenlake Place NE Kenmore, WA 98028
Phone (425) 483-9134 Fax (425) 486-2746
March 20, 2015
Dr. Lieh Ching Chang
L&A Job No. 12-083
Page 2
CORRECTION OF DECK HEIGHT
The deck is constructed over backfill inside a perimeter concrete retaining wall and the
deck rises about 36 to 48 inches above the grade along the base of this concrete wall. In
order to reduce the deck height to code -allowed height, the ground surrounding the
concrete wall has to be raised with fill so that the height from the raised grade to the top
of the deck be no more than 30 inches. To raise the grade, a precast concrete block wall
about 10 to 18 inches tall, should be constructed along the south property line to replace
the existing landscape timber tie wall. This block wall should then turn and run nort I h
across the width of the lot at about 7 feet off the west side of the base of the concrete wall
under the deck. This wall should be constructed with Keystone compact blocks or equal.
The fill to be used to raise the ground should consist of clean granular soils free of organic,
debris and other deleterious substances and with particlesnot larger than three inches. Structural
fill should have a moisture content within one percent of its optimum moisture content at the
time of placement. The optimum moisture content is the water content in the soils that enable
the soils to be compacted to the highest dry density for a given compaction effort.
Imported material to be used as fill should meet the above requirements and should contain no
more than 5 percent by weight finer than the No. 200 sieve based on the fraction of the material
passing.No. 4 sieve, and should have individual particles not larger than four inches. The ground
over which fill is to be placed should be placed in lifts no more than 10 inches thick in its loose
state, with each lift compacted to at least 90% of the maximum dry density determined by ASTM
D1557 (Modified Proctor Method). The graded area should not be paved. Instead, it may be
covered with a 4 to 6 inch layer of 5/8-inch crushed rock, with discrete stepping stone laid in the
LIU & ASSOCIATES, INC.
March 20, 2015
Dr. Lieh Ching Chang
L&A Job No. 12-083
Page 3
middle of the graded area for foot traffic. The graded area thus constructed would allow storm
runoff to seep into the ground, instead of flowing onto neighboring properties.
CORRECTION OF GUARD RAIL SETBACK
According to Mr. Lawler, the deck guard rail is considered as a structural element.
Therefore, guard rail of the deck should be set back at least 10 feet from the south
boundary of the property. He also indicated the guard rail will not be required if the deck
height is reduced to no more than 30 inches. In this case, the guard rail setback issue may
be resolved by removing all guard rail of the deck following raise of grade as
recommended above.
CLOSURE
We are pleased to be of service. Please contact us if you have questions.
N
Yours very truly,
LI ASSOCIATES, INC.
J. S. (Julian) Liu, Ph.D., P.E.
Consulting Geotechnical Engineer
'? /: �0' (! 5 -
LIU & ASSOCIATES, INC.
10" W
0
ELEVATION NOTES:
PROPERTY CORNER ELEVATIONS TO REMAIN AT EXISTING E.EVATION
ROOF DRAIN INVERT ELEVATIONS: (ITALICS)
CL_
LZ
CONNECT TO V HDPE.
__j
FIELD VERIFY LOCATION U-)
& INVERT, PROTECT
X W
EXISTING 6" HDPE LIJ r-,,
(ROMAC 4 CB SEWER FOOTING DRAIN
DRYWELL 3'X3'X3'
SADDLE) 6" HDPE N -7 10
U
20L.F. 4" N12 0
2% MIN. 9 3 . 8,,,�
A' PIPE ANGHOR PER
DETAIL (TYP-)
To USE
+
STEEP SLP.
To pATI . . . .
0
" " . .1
38L.F. 4" PVC @
1Y W I r34
C:
2% MIN. P
PLANTIM'. (31
'TOP OF BANK
7 :92.5
3'10" W 0
Z
Z
0
M
3/4" x 5'M
ibedment s
ach side of
0
_T1
(NTS)
50
50
90.1
ert
4! HIGH FENCE
[8
.01
100% SLOPE
BY
@ BLUFF
Z
<
LLJ
Material to be ASTIVI
EX. GRADE A 36 galvanized after
:fabrication per ASTIVI
A 153
AF# 2114689
10' CITY UTILITY
EASEMENT
FOR SS
6LF=(22
L
T 'A
W"
-13 ---VALO
6"' HIM "j. MM, . 'y `11 10% LOT SLOPE
t.0 92.0
6' HIGH FENCE -.<-
35SETBACK FROM TOP OF SLOPE (PER
G E 0 T E C. 1- 1-11"
�-YARD DRAIN W/ SUMPBOX
GE
6" CLEANOUT
W/ 12" CAST IRON LAMPHOLE COVER -
AND 1/2" HEXBOLTS AT PROP. LINE
A
r
4
,0 .
A
4
a . .
q 10
4 WfpWk fW-4.
IkIO f tee
N
1. The unreinbreed bkxk wall 9W nd be more 1hM11Sf&l*t01 Omm Inish 9M&*100 VO4).
2. Construction of coraete block wall "t. proceed imma"* #her." Ikeyway Verich OW400 I Is
completed.
ri,yaWg slatawlth a
3. Exposed.soft In lorom trenchshall be,0oMP=WdA0*7
"d,jffo Pon-WMA faff fabrile. phmd
4. A 4-inch Solvedule 40 pwftvW FVC don Eno wrW , IMUM
in the trench behind ffm block W21. The trench " then"U-4W %ftha min
to -a nw-yMoing state.
wnpacted 6184nch leveling mahed rack base cWWO0641
5. The trench boftm and the well drain line shell be 8101300*0 f0inimurn 0-5% grade to 9.0100001M of
WWI drain lirie $hall be bghgrmd t0dialn,kft the fbdft dreiri WOOM 0
water by gravity. The tm* base willh at IeW a I
0. The base -course -blodw shag be set on the tweling 410W riches, of
embedrmt below adjacent fiflisil grade.
7. The WWOW 13110011M Of each mm be stacked W* VAIW one wwftr The holkw ft' of
a 06 d with 5184nch crushe rack
blocks and the y"
Cal drain mat of the Wall emu ab 400
ODMW,& clean, free,4"
pgranwai
ShuC
a. Structural fill shaft be wod to b*WH ft wall
01"ed in 10MOL ft r4 "to
wia ba**.* Id be on 10
sods with particles no.larger than 3 Inctm
Tim
inchw #11&, *0 ewh Hft wnpaded to a norijWft��Vfth 0 Vb*W COMPftir.
LIU* & ASSOMTIES., INC. CONCRETE BL, VALL
CHANG RESIDENCE
1,11134 TALBOT ROAD
INDS.WASHI
�629P INIMN � I
J
PRIOR TO THE CONSTRUCTION OF ANY IMPERVIOUS
I. ALL LJ131 UlKbr-L.) AKCA3 I U b
t,%mtr4utu rm k.,11 T k-)r
VY Ok �7rll rINCK I MAN I r1r_ IJU.
ZLAJ 31r-Vr- D,-\3CLJ UN 1 MC
EDMONDS STANDARDS IN AC
ORDANCE WITH THEIR
FRACTION OF MATERIAL
SSING NO. 4 SIEVE, AND SHALL
SURFACES.
NPIDES APPROVAL (APPROVE
COMPOST)
,
HAVE INDIVIDUAL PARTICII,
ES NOT LARGER THAN 4 INCHES.
DRIVEWAY SUBGRADE SOIL TO BE TREATED AND PREPARED
2. SEE TARGETED DRAINAGE
PORT FROM CIVIL ENGINEER
2. FILL SHALL BE PLACED Ih
LIFT NO MORE THAN 10 INCHES
PER "SITE PREPARATION AND GENERAL GRADING" SECTIONS
FOR FURTHER DETAILS.
THICK IN ITS LOOSE STATE,:
NITH EACH LIFT COMPACTED TO
OF THE GEOTECHNICAL REPORT.
3. GE = GRATE ELEVATION; IE
INVERT ELEVATION
AT LEAST 90% OF MAXIMUi
A DRY DENSITY DETERMINED BY
PRIOR TO CONCRETE POUR OF DRIVEWAY, A SPECIAL
4. ALL DRAINAGE PIPE TO BE
'PVC.
ASTM D 1557 (MODIFIED P111OCTOR
METHOD)
INSPECTION WILL BE REQUIRED.
5. DOWNSPOUT DRAIN AND F
OTING DRAIN TO BE
3. FILL AREA SHALL BE C6
IER BY 4 TO 6 INCH LAYER OF
- ALL NEW UTILITIES MUST BE UNDERGROUND.
CONNECTED SEPARATELY INT
THE STORM SYSTEM.
5/8-INCH CRUSHED ROCK
WITH STEPPING STONES.
- IF RIM TO INVERT EXCEEDS 5'A TYPE 11 MANHOLE MUST BE
4. REFER TO CORRECTION
FOR COMPLIANCE OF DECK
INSTALLED.
HEIGHT AND SETBACK LETTER
PREPARED BY LIU &
ASSOCIATES, INC. DATED
MARCH 20,2015.
C) C)
P LIN 00, 4- Cn
. . . . . . . . . . .. ... . . . . . . . . . . .
% . . . . . . . . . .
. . . . . .. . . . .
. . . . . . .. .
MS.,
. . . . . . . . . . . . . .
. I. .- - , A - . : 11 . I +
IG4 TVNCE"- L
1A- -
IIIG ag"
109.4
CQNNECT TO YARD DRAIN
_,*ARID DRAIN W/ TEE & SUMPBOX
NDS 1280, 1216, 1217 & 1225
.`G . E- 100.00 IE 98.50
CONCRETE
DRIVEVAY
PARCEL B
10 ROAD, WATER LINE AND POWER EASEMENT
4' HIGH FENCE
RESIDENCE FOOTING ELEVATION 91.2'
RESIDENCE FINISHED FIRST FLOOR ELV. 100.9'
GARAGE FOOTING ELEVATION 101.4'
GARAGE FINISHED FIRST FLOOR ELV. 102.9'
SEWER:
IF RE-4SING THE EXISTING SEWER LATERAL THE CONDITION
OF THE PIPE MUST BE VERIFIED BY CITY'S PUBLIC WORKS DEPT.
CONTACT EDMONDS SEWER DIVISION 425-771-0235.
LATERAL PIPE MUST BE CTO RE -USE.
T V11 W,
AM WORK sUBJECT
TO FIELD
ON FOR
INSPECTI
CODE COMPLIANCE
N 45* 43'10" W
185.00'
GAS
POWER
PH/CABLE
WATER
I ODRIVEWAY ANIn UTILITY EASEMENT
AF# 20120828042'1
WA R: PEX PIPE
Psi.
USE MIN. DIAMETER AT I
TRA ER WIRE ADDED IN LIEU OF COPPER PIPE.
. . . . . ...
REVISION NOTES: (04-30-2015)
1. REVISED DRAINAGE SYSTEM AND DISC
GE TO
NEIGHBOR'S DRIANAGE OUTLET.
2. ADD 3.5' HIGH MAX. BLOCK WALL AT
LITHERN
PROPERTY LINE AND REGRADE.
NOTE: ENGINEERING FOR BEEN DONE
BY OTHERS, ONLY DRAINZNSIS
k ETIGNH%
MINOR
GRADING SHOW ON THIS PLAN ARE D
GNED AND
REVISED UNDER MY SUPERVISION.
City of Edmonds Building Division
W7WVV-v
0�7/15
CIVIL OGINF
gNGIN
WOOMENG CHIN. P.E.
i
PH: 206-427-4533
anchin''18250pail.
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7134 Talbot Road
dmonds, Washington 98026-5051
7040700104300
is 2 & 3 - Sct 7, Twn 27 N, Ra 04 E
nor
leh.-Ching & Ping -Yu Chang
i a
Drah, ge,, Utilities & Paving
Plan
0
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7
addendum T
T
REE,,t! FILE
CITY OF EDNIIONCYF�'
4 AY _1 9
BUILDI G DEPARTMEI'4T
WORK �=Llo Irkt-c) -OPMENT SE
ADDRESS _J2 /3 4a I vw�' C 'OU N T E R
OWNER
IINGAPPROVED DATE,,___2j((!(j1<-
\51
do.
.LEGEND.
EXCEPTION
do,
a 15)
A
ro
u ry
'rO� HOUSE
HOUSE 5 FT. WOOD
FENCE 0.5 NORTH
5 FT. WOOD >
Ir
FENCE 0.2' TO
0.4' NORTH GARAGE
HOUSE
PARCEL A
lr(9
EXISTING 4"X 4" CONCRETE MONUMENT NTH
"X" IN 1-3/4" BRASS DISK IN CASING
SET 1/2- X 24" REBAR & CAP STAMPED
"LSA 22969" ON PROPERTY LINE
x SET NAIL NTH WASHER STAMPED "LSA 22969"
El 2" X 2" X 24" WOOD STAKE WITH TACK AND
BRASS WASHER STAMPED *22969" .
(SP) DISTANCE PER SHORT PLAT S-95-129 (A.F. NO.
9704022001
BASIS OF BEARINGS
THE CENTERLINE OF TALBOT ROAD PER LEGAL DESCRIPTION DATA AS
MONUMENTED.
EQUIPMENT TRIMBLE S6 ELECTRONIC TOTAL STATION
METHOD : FIELD TRAVERSE
ACCURACY CONFORMS TO WAC 332-130-090
MONUMENTS VISITED AUGUST 2, 2012
-- ---- - ...... � .. .- -1.
CONFORMED COPY
201208245001 1 PIS
08/2412012 10:10WJ128,00
A. F. N 0. SNOHOMISH COUNTY) SHINGTON
RECORDING CERTIFICATE
FILED FOR RECORD BY LOVELL- SAUERLAND & ASSOC., INC. THIS
, 2012, A.D. AT —MINUTES PAST —
AND RECORDED IN VOLUME . OF SURVEYS, ON PAGES
RECORDS OF SNOHOMISH COUNTY, WASHINGTON.
CAROLYN WEIKEL
AUDITOR
DEPUTY AUDITOR
— DAY OF
O'CLOCK —M.
IS, 2 N .1, 1 'yo:%pC,
G ' N 7\ -
4
0 19
0/,
0 0
0
0
WEST (DESC)
—V)-
1013.86'(DESC)
alp
0
w
1.10, w
0 w Z
A� <
P�
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z
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1 O�
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"Op/ :7j_EA-LAWN TEFJF�RAC E
EAST QUARTER
DIVIE-J-11ON "'C"' CORNER OF
7 8
RECEWED
(VOL, 2-5, PG, 3W
3r
4. .'0
SURVEYOR'S CER77FICATE
THIS MAP CORRECTLY REPRESENTS A SURVEY IAADE BY ME OR UNDER
MY DIRECTION IN CONFORMANCE WITH THE REQIJIREMENTS OF THE SURVEY
RECORDING ACT AT THE REQUEST OF JACKIE CHANG
THIS 2nd DAY OF AUGUST 2012.
ri
L.S. NO 22969
JUN 03 2013
DEVELOPMENT SERVICES
COUNTER
N
W--� �—E
S
SCALE : 1"=50'
I EM M11 EMEMEM
am EM ,,, Mw --- 6�
0' 10'20'30'40'50- 75' 100,
LEGAL DESCRIPTION
PARCELB
THAT POR11ON OF GOVERNMENT LOTS 2.AND 3 IN SECTION 7, TOWNSHIP 27
NORTH, RANGE 4 EAST, W.M., DESCRIBED AS FOLLOWS:
BEGINNING AT THE EAST QUARTER CORNER OF SAID SECTION 7;
THENCE ALONG THE EAST LINE OF SAID SECTION 7. NORTH 1*11*45" EAST
437.35 FEET;
THENCE WEST 1013.86 FEET;
THENCE NORTH 45*43'10" WEST 185 FEET TO THE TRUE POINT OF BEGINNING;
THENCE NORTH 45*43'10" WEST 292.43 FEET;
THENCE ALONG THE GOVERNMENT MEANDER LINE NORTH 46*02'45" EAST 50
FEET;
THENCE SOUTH 45*43'10" EAST 292.43 FEET;
THENCE SOUTH 44*16'50" WEST 50 FEET TO THE POINT OF'BEGINNING;
EXCEPT THE GREAT NORTHERN RAILWAY RIGHT OF WAY
PARCEL B
AN EASEMENT FOR ROAD PURPOSES, WATER PIPE LINE AND POWER LINE OVER
A 10 FOOT STRIP OF LAND DESCRIBED AS FOLLOWS:
THAT PORTION OF GOVERNMENT 2 IN SECTION 7, TOWNSHIP 27 NORTH, RANGE
4 EAST, W.M., DESCRIBED AS FOLLOWS:
BEGINNING AT THE EAST QUARTER CORNER OF SAID SECTION 7;
THENCE ALONG THE EAST LINE OF SAID SECTION 7. NORTH 1-11-45- EAST
437.35 FEET;
THENCE WEST 1013.86 FEET TO THE MOST SOUTHERN CORNER OF THE TRACT
HEREIN DESCRIBED AND THE TRUE POINT OF BEGINNING;
THENCE NORTH 45*43'10- WEST 185 FEET,
THENCE NORTH 44'16'50- EAST 10 FEET,
THENCE SOUTH 45*43*10- EAST 185 FEET;
THENCE SOUTH 44*16'50" WEST 10 FEET.
PARCEL C
ALL OF TIDELAND LOT 3 IN FRONT OF, ADJACENT TO ABUTTING UPON THAT
POR11ON OF GOVERNMENT LOTS 2 AND 3 DESCRIBED AS FOLLOWS:
THAT PORTION OF GOVERNMENT LOTS 2 AND 3 IN SECTION 7, TOWNSHIP 27
NORTH. RANGE 4 EAST, W.M., DESCRIBED AS FOLLOWS:
BEGINNING AT THE EAST QUARTER CORNER OF SAID SECTION 7;
THENCE ALONG THE EAST LINE OF SAID SECTION 7, NORTH 1*11'45" EAST
437.35 FEET;
THENCE WEST 1013.86 FEET;
THENCE NORTH 45*43'10" WEST 185 FEET TO THE TRUE POINT OF BEGINNING;
THENCE NORTH 45*43'10" WEST 292.43 FEET;
THENCE ALONG THE GOVERNMENT MEANDER LINE NORTH 46*02'45" EAST 50
FEET;
THENCE SOUTH 45*43'10- EAST 292.43 FEET;
THENCE SOUTH 44*16'50" WEST 50 FEET TO THE POINT OF BEGINNING.
PLAT OF,SURVEY
FOR
JA CKIE CHANG
IN SW1/4 &.SE, NE1/4, .
SECTION 7, T.27 N., R.4 E., W.M.
CITY OF,'EDMONDS
SNOHOMISH COUNTY, WASHINGTON
SHEET 1 OF 1
LEM Lovell — Sauerland & Associates, Inc.
JIMMEM Engineers/Surveyors/Planners/Development Consultants
Emm M —e—mail: info@lsaenginee;ing.com web: Isaengineering.com
19217 36th Avenue W., Suite 106 - Lynnwood, 'WA:98036 —1591
(425)775
DRAWN CHECKED DATE F.B. FU NO.
J.T.T. J.T.T. 8-10-12 1 524, P. 72 1 -=50- .5378-0-12
&6try
1\1 45' 41"in" IN
\1 45' 43'10" IN
.0,
0
0
T_
---I
CI
CU
0
Z:�
z
0
Fri
50
GRADING CALCULATIONS
INSIDE 20(Y SETBACK OF OHWM
101 CY TOTAL
RESIDENCE & PATIO FOUNDATION
54 CY
UTILITIES
3CY
DRAINAGE
44 CY
OUTSIDE 200'SETBACK OF OHWM
229 CY TOTAL
RESIDENCE & GARAGE FOUNDATION
128 CY
UTILFTIES
1 9 CY
DRAINAGE
11 CY
DRIVEWAY
I I CY
TOTALS
CUT
330 CY
FILL
218 CY
SOIL TO BE REMOVED
112 CY
I
50'
NOTE:
- REFER TO GEOTECHNICAL ANALYSIS FOR SOIL
MANAGEMENT AND GRADING INFORM�TION.
- ALL GRADING TO OCCUR ON PROPERTY BETWEEN APRIL
1 -OCTOBER 3 1.
- ALL SPOIL SOILS TO BE HAULED OFF SITE,. NO DEBRIS
(CONST. MATERIAL, SPOIL SOIL, YARD WASTE) TO BE
DUMPED OVER THE STEEP BLUFF.
- SPECIAL INSPECTIONS ARE REQUIRED FOR EROSION
CONTROL APPROVAL PER GEOTECH ANALYSIS.
ELEVATION NOTES:
PROPERTY CORNER ELEVATIONS TO REMAIN AT EXISTING
ELEVATION
EXISTING GRADE CONTOURS ARE DASHED (HOR NUMBERS)
PROPOSED FINISHED GRADE 15 SOLID (VERT NUMBERS)
TOP OF BANK
35'SETBACK FROM TOP OF SLOPE
(PER GEOTECH)
(921 [941 [961 8110'-0" [1001 [1021 [1041 [1061 [1081
[93.81 119 PROPERTY LINE 195.00'
N 5V 22'56' R.1 -
E 37'lo
'0 "OUS
P"" 35' -6"
'I I D CE G�RAG
R SID
STEEP ffix...
PATIO
.-A
A pbo.0) PROPERTILINE 205.00-1
N 7' 30" 'A-'P- 193.11 10'-0"
100% S LOJE -*— 10% LOT SLOPE CON I CRETE
PROVIDE SILT FENCE AT LIMITS OF DRIVEWAY -
CONSTRUCTION AND AROUND TREES. PROVIDE BASE LAYER OF CLEAN
SILT FENCE TO BE ANCHORED IN A 2-4" QUARRY SPALLS Fdp
TRENCH FILLED WITH ONSITE SOIL - PER
GEOTECH ANALYSIS. CONSTRUCTION ENTRANCE
I
(�A
2
Routep A
N
I.A
kv
19 "'14
12
V1, 001
IMI� S, SW
161,10SN
41
vi
Route B
'A�' S! Sw
P.r.
N
Haul Route P113n
[109.01
�<
Scale: NTS
rA P (--, E L B
1,-)' FC)AD, \V-�FFR. LINE
LU
*1D POINEIR EASEMENT
0
0
a-
I IF
I
I--
P\1 AZ�' A IA1
i e&
IF
0
10._01.
10'DRIVEWAY AND
UTILITY EASEMENT
AF# 201208280429
RESIDENCE FOOTING ELEVATION
91.2'
RESIDENCE FINISHED FIRST FLOOR ELV. 100.9'
GARAGE FOOTING ELEVATION
101.4'
GARAGE FINISHED FIRST FLOOR ELV.
102.9'
Project Info:
50
17134 Talbot Road
N
Grading
& TESC Plan
C.
Edmonds, Washington 98026-5051
co
Scale: I" = 50'
0 10 50
1 100 27040700104300
Lo
Lots 2 & 3 - Sct 7, Twn 27 N, Ra 04 E
OWNER/CONTRACTOR IS RESPONSIBLE
FOR EROSION coNTROL AND DRAJNAGE
�P
TRUCK HAUL NOTES:
- TIRES TO BE (BRUSHED NOT WASHED) FREE OF DEBRIS
BEFORE LEAVING THE SITE.
- ENTER/EXIT ROUTES TO FOLLOW COURSE ON MAP
r,"ATO A -ro SL- VSVD WNW v-30M
W"" AYAF W Is
in
C BY G
.u.) INEERING
T
Date:
V TM S PLAW IS OMq F:10#& C"VAO &X-1 T'-S C.
PLOW aCM-M 1-0 SePAaA-rw AtAOIS FbM A0DVTI4MF0-
RESUB
JUN o 3 2013
BuILDING DEPAKWINIT
Cl-Ty OF EDWNDS
GradingfrESC
Al 90
addendum
By:
X-SOUND
ENGINEERING
P.O. Box 1265
Freeland, WA 98249
(360) 331-3113
x-sound@whidbey.com
COMES WITH APPLICABLE
ell
ITY�TOFNWATER CODE
1/0'
loq* L.S
Targeted Drainage Report 6uefs-jzrv,1
-101
for -fo PrIes I Zino
The Chang Residence
Edmonds, WA
M EfA OVWD(A M 191+TCO 7/)r.
kr—LLA DG:10
A
ON -
OU%413 0 CIS
01 Of
X-SOUND
E N G I N E E R I N G
1796 Main St. S-201
Freeland, WA 98249
(360) 331-3113 (o)
(360) 331-7114 (�
x-sound@whldbey.00rn
MEMORANDUM
RESUB
JUL 19 2013
BjrCWV8rE
OPT
TO: Jennifer Lambert, City of Edmonds
FROM: Geoff Tapert, P.E.
DATE: 7/18/13
RE: Chang Residence — 7/3/13 Additional Comments
This memorandum is in response to two additional comments contained in the 7/3/13
letter. As we understand the issue, there is a question about the rain garden sizing and the
topsoil requirements.
With respect to the rain garden dimensions, we have revised our calculations to reflect an
infiltration rate of 2.0 in/hr, as recommended by the Geotechnical Engineer, versus the
05 in/hr previously provided (see attached). In addition, without using the saturation
value for the topsoil, the attached spreadsheet shows that the maximum depth will not
exceed 12" for.the 100-year event.
With respect to the planting materials and topsoil mix requirements, we would
recommend an adherence to the City of Edmonds standards (E-72b).
Should you have any questions, please feel free to give me a call at (360) 331-3113.
It
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� X-SOUND
ENGINEERING, INC.
P.O. Box 1265
Freeland, WA 98249
(360) 331-3113 (0)
(360) 331-7114 (F)
JOB g<
T-
77�Xf�� DATE 1-7 -E5'
t-� of�4s 7iiWm Zi,
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NX-SOUND
ENGINEERING, INC.
PO. Box 1265
Freeland, WA 98249
PW) 331-3113 (0)
(360) 331-7114 (F)
JOB Ve!A44—= NO.
BY DATE CS -'b I - r5
. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . .
Start Here
Does the site have
See Redevelopment
35% or more of
Minimum
existing impervious
Requirements and
coverage?
Flow Chart
Does the project convert
(Figure 2.3)
No
% acres or more of native
IF
vegetation to lawn or
Does the project add
No
landscaped areas, or
5,000 square feet or
convert 2.5 acres of more
more of new
of native vegetation to
impervious surfaces?
P�,
pasture?
Yes
'Y e s No�
Does the project have
2,000 square feet or
All Minimum
more of new, replaced,
Requirements Apply to
or new plus replaced.
the new impervious
impervious surfaces?
surfaces and converted
pervious surfaces.'
Yes
Minimum
Does the project have
Requirements #1
land -disturbing
through #5 apply to
activities of 7,000
the new and replaced
Yes
square feet or more?
impervious surfaces
and the land disturbed.
No
See Minimum
Requirement #2,
Construction
Stormwater Pollution
Prevention
Figure 2.2 Flow Chart for Determining Requirements for NeW Development
August 2001 Volume I — Minimum Technical Requirements 2-9
Do the new, replaced, or new plus replaced impervious surfaces total 2,000
square feet or more?
OR
Does the land disturbing activity total 7,000 square feet or more?
L&S No
Minimum Requirements #1 through #5 LApply Minimum Requirement #2,
apply to the new and replaced impervious Construction Stormwater Pollution
re
surfaces and the land disturbed. Prevention
INext Question
Does the projec(!dd W impervious surfaces?
—,,$,000 square feet or more of ne
OR
Convert 3/4 acres or more of native vegetation to lawn or landscaped areas?
OR
Convert 2.5 acres.or more of native vegetation to pasture?
Yes Next
Minimum Requirements#] through #10 Question jo Is this a road -
apply to the new imperviowq surfaces and related project?
the converted pervious surfaces. I Yes --
Does the project add 5,000 square feet or more of new impervious surfaces?
Yes
Do new impervious surfaces add 50% or
more to the existing impervious surfaces
within the project limits?
I No Yes
No additional
requir, I
No
Is the total of the new plus replaced
impervious surfaces 5,000 square feet or
more, AND does the value of the
proposed improvements — including
interior improvements — exceed 500/6 of
the assessed value (or replacement value)
_J of the existing site improvements?
Yes
No
FNo additional
-
Minimum Requirements# I through #10 requ
apply to the new and replaced imperviou
surfaces. I
No
Figure 2.3 Flow Chart for Determining Requirements for Redevelopment
2-10 . Volume I — Minimum Technical Requirements August 2001
I
OR
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AL,
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LIU & ASSOCIATES. INC.
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PROPERTY SURVEY AND SITE PLAN
CHANG RESIDENCE
17134 TALBOT ROAD
FDMnNn.S. WAShINGTON
..........
a 0 a 0 a a 0 a 0 0 . . .
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I I I . .. . . . . . . . . . . . . . . .
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STORMWATER SPREADER PIPE SYSTEM
LIU & ASSOCIATES, MC. CHANG RESIDENCE
GeO60nir'm''Enpwing - Engin" Geo"Y'- Ear scw= 17134 TALBOT ROAD
EDMONDS, WASHINGTON
JOB NO, ' 12-083 1 DATE 911212OE2:1 PLATE —3
41
RAIN GARDEN TYPICAL SECTION
LIU & ASSOCIATES. INC. CHANG RESIDENCE
17134 TALBOT ROAD
Goolwmical Enginee6og - Eflomemv c'so"y - Eafth scence EDMONDS, WASHINGTON
J?5B NO, J2-083 mAI512013 I PLATE
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ENGINEERING, INC.
P.O. Box 1285
Freeland, WA 98249
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July 22, 2013 RECEIVEC)
JUL
Jonathan Richards DEVELOPMENT SERVIC§,�%�-i
5105 Sterling Drive COUNTER
Anacortes, Washington 98221
360.391,0832
jonathan-59@hotmaii.com
PUBLIC WORKS DEPARTMENt
RE: Plan Check: BLD2013-0190 & -0191
17134 Talbot Road
Edmonds, Washington 98026-SO51
Dear Jennifer Lambert,
This letter is to inform you that I personally made an attempt to get permission from B.N.S.F.
(Burlington North�rn Santa Fe Railroad) to use their property for dra'inage discharge for the
Chang Residence at 17134 Talbot Road. In approximately October of 2012 1 had several phone
calls to discuss this option. I was directly told by their representative that they are "not
interested" in allowing the Chang's to have the requested drainage rights, even though there was
an existing building in place. I made attempts to explain reasons why they should be allowed but
Was continually refused as they mentioned their concern a -bout the impact on the-ir railroad-.
Thank you for all your help,
Jonathan Richards
RECEIVED
PEVELOPMENT SERVICES
July 21', 2013COUNTER
Dear Jennifer Lambert,
We would like. to inform you that after our meeting on July 5th, we
made a lot of phone calls to B.N.S.F. Railroad Company for seeking the
possibility of acquiring their permission even though they have rejected
my representative, Jonathan's request last year. We finally got to talk.
with the storm water environmental department through the phone at (206)
6256037. They replied that they were not sure about our situations but it's
almost impossible to get the permission of discharging the storm water to
their property. They strongly suggested us to use other options instead of
fighting for the pen-nission.
We feel deeply sorry for unable to get the permissions from either
BNSF railroad company or our two neighbors. There's only hope if you
and your team will allow us to install an infiltration system (drip and rain
garden) on our property. Your favorable consideration on this matter will
be highly appreciated.
Sincerely yours,
ry
Lieh Ching and Ping Yu Chang
Homeowners of 171.34 Talbot Road
0. Edmonds, Washington 98026-5051
R 2:
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July 22, 2013 UN Fit
To whom it may concern:
I do not give my permission for my neighbor Lieh-Ching Chang to tie into my drain line.
I originally agreed that they could tie into the line, but now that.1 understand the time, cost, and
inconvenience involved with making this happen, I am not willing to let them connect to my drainpipe.
Thank you,
Julie Hunt
17160 Talbot Rd
Edmonds, WA 98026
I
0
HVEL'
MARK G. BEARD
206.223.7014
beardm@lancpowell.com
July 22, 2013
Lieh Ching and Ping Yu Chang
Re: 17130 Talbot Road Drainage Easement
Dear Jackie and Gloria:
Since our earlier discussions regarding a possible drainage easement through our property,
we have consulted with an engineer who advises that it would not be in our best interest to do
so. Specifically, we are concerned that such an easement may have a detrimental effect on
ou I r vested property rights with the BNSF railroad and the additional impact that additional
trenching would have on our front yard's stability and landscaping. We are very sorry for
this inconvenience and if there is anything else Letie and I can do to help you in your project
please do not hesitate to contact either of us.
Very truly yours,
M7arand Leta Beard
999999.0040/5772616.1
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LIV& ASSOCIATES. INC.
Geotechnical Engineeting - EngineOng Geology - Eafth Science
RAIN GARDEN TYPICAL SECTION
CHANG RESIDENCE
17134 TALBOT ROAD
EDMONDS, WASHINGTON
0. 12-083 1 DATE 4/5/2013 1 PLATE
Plants for a Sunny to Partly Sunny Rain Garden
Zone, I Exposure Mature Size Time of Bloom
Comments
Deciduous Shrubs
Species/Common Name
Cornus sen . cea* Sun/partial sun To 15 feet May - June
Prefers wet to moist, organically rich soils, but is adaptable;
Red -osier dogwood
tolerates seasonal flooding; small white flowers in clusters;
Red -twig dogwood
berrylike bluish -white fruits
Comus sericea'Kelseyi' -S.un/partial sun To 1.5 feet June - August
Prefers wet to moist organically rich soils, but is adaptable;
Dwarf red -twig dogwood
small white flowqr�s; berrylike fruit; low -growing, compact form;
good ground cover
Comus sericea
Sun/partial sun 6 - 8 feet
May - June
Prefers wet to moist organically,rich soils, but.is adaptable;
'Flaviramea'
easily transplanted and grown; small, white flowers; yellow
Yellow dogwood
stems and reddish/purple fall color
Cornus'Midwinter Fire'
Sun/partial sun 5 - 6 feet
May - June
Prefers wet to moist organically rich soils, but is -adaptable;
Blood -twig dogwood
tiny white fiowers� clusters; bright red stems in winter
Physocarpus capit . atus*
Sun/partial shade 6 - 13 feet
May - June
Moist or dry soils; drought -.tolerant; "snowball" shaped shrub;
Pacific ninebark
white.flowers; seeds persist into win -ter
Rosa pi . so I carpa
Sun/partial shade 6 - 8 feet
May - July
Moist soils, tolerates seasonal flooding but also tolerant of
Clustered wild rose
dry conditions; pink clustered-fl-owers;. fruits persist; spreads
aggressively
Spiraea dougiasii*
Sun/partial shade 4 - 7 feet
Moist or dry, to seasonally inundated soils; spikes of small,
Douglas spirea
pink flower clusters; may spread in wet soils
Steeplebush
Salix purpurea 'Nana'
Sun/partial shade 3 - 5 feet
Grows well in poor soils; moderately drought -tolerant; small
Dwarf Arctic willow
yellow flowers in the fall
Zone I Exposure Mature Size Time of Bloom Comments
Evergreen Shrubs
Species/Common -Name
Myrica californica* Sun/partial shade To 30 feet May - June Evergreen shrub preferring moist soils; inconspicuous spring
Pacific wax myrtle flowers
Plant 29
Plants for a Sunny to Partly Sunny,Rain Garden, continued
Zone 1 Exposure Mature Size Time of Bloom Comments
Emergents-**_
Species/Common Name
Carex obnupta* Sun/partial shade 1 - 5 feet
Slough sedge
Juncus acuminatus*
Taper -tipped rush
Moist to seasonally saturated soils; shiny foliage; exco
soil binder
Sun/partial shade 1 - 2 feet Summer Handles shallow inundation in winter, and summer drou
Juncus ensifolius* Sun 12 - 18 inches Stems resemble irises; small, rounded "porn-pon"dike flowers
Dagger -leaf rush
Juncus tenuis* Sun 6" — 2.5 feet Delicate flowers
Slender rush
Scirpus microcarpus* - Sun/shade 2 - 4 feet Wet soils; tolerates prolonged inundation; good soil binder;
�Smalkfruited bulrush spreads aggressively
Zone I Exposure Mature Size Time of Bloom Comments
Deciduous trees/
Large Shrubs
Species/Common Name
Amelanchier alnifolia* Sun/partial shade 10 - 20 feet/ April - May Moist to dry, well -drained soils; drought -tolerant; large white
Western serviceberry 25 ft. spread flower clusters; purple to blue -black berries
Corylus cornuta* Sun/partial shade 20 - 30 feet/ April - May Moist, well -drained soils; edible nuts; intolerant of saturated
Beaked hazelnut 15 ft. spread soils; male catkins throughout winter add interest
Rhamnus purshiana* Sun/shade 20 - 30 feet/ April - May Moist to fairly dry soils; small greenish -yellow flowers; shiny
Cascara 20 ft. spread black fruits; yellow fall color
Acer circinatum* Filtered sun/shade To 25, feet Spring Dry to -moist soils; tolerant of shade and clay soils; excellent
Vine maple soil,bindet; beautiful fall color
"Emergents are plants that "emerge" from standing water and can be partially covered with water during the wet season.
Plant 30
I It I" 1I Al T, 1-%-/ 1-1; It) 1`1 A-; ITA�_,_V_111. I IA'I'_ IT 1AT IT -11 11' 1-
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Plants for a Sunny to Partly Sunny Rain Garden, continued
Zone 2 . . Exposure Mature Size Time of Bloom Comments
Deciduous Shrubs
Species/Common Name.
Rubus parviflorus* Sun/partial shade -4-10feet May - June Moist to dry soils; white flowers; red berries; makes thickets
Thimbleberry and spreads easily
Symphoficarpos albus* Sun/shade 2 - 6 feet April -June Wet to dry soils, clay to sand; excellent soil binder; provides
Snowberry good erosion control; spreads well in sun; white berries; flowers
attract hummingbirds
Symphoricarpos Sun/shade 3 feet tall/5 ft. April - June Similar to snowberry, but produces - purple fruits; species has
orbiculatis* spread wide, mounding/spreading habit; some cultivars are more
Coralberry upright, have brighter, larger berries
Zone 2 Exposure Mature Size Time of Bloom Comments
Evergreen Shrubs
Species/Common Name
Mahonia aquifolium* Sun/partial shade 6-10feet March -April Dry to moist soils; evergreen; blue -black fruit; bright yellow
(Berben's aquifolium*) (or 2 - 3 ft. for flowers; 'Compacta'.form averages 2 feet tall; great low
Tall Oregon-grapd 'Compacta') screening barrier
Zone 2 Exposure Mature Size Time of Bloom Comments
Herbaceous Perennials,
Species/Common Name
Aquilegia formosa* Sun/partial shade 1 -; 3 feet
Western columbine
Aster chilensis* I Sun
Common California aster
Aster subspicatus* Sun
Douglas'aster
Camassia quamash* - Sun/partial shade
Common camas
1.5 — 3 feet
6" — 2.5 feet
Spring Tolerates soils of varying quality; tolerant of seasonal flooding;
red and yellow flowers attract hummingbirds and butterflies
June -Septemb6r Moist soils; white to, purple flowers
June - September Moist soils; blue to purple flowers
To 1.5 feet May - June Moist to dry soils; loose clusters of deep blue flowers,
Plant 3 1
Plants for a Sunny to Par . tly Sunny Rain Garden, continued
P51
Zon - e 3 Exposure Mature Size Time- of Bloom Comments -
Evergreen Shrubs and
Groundcovers
-Species/Common Name
Arbutus unedo Sun/partial shade Tol0feet Fall Prefers well drained soils; tolerant of poor soils; good in climate
extremes; white to greenish -white flowers; striking red -orange
'Compacta' fru it
Fragaria chiloensis* Sun/partial shade 10 inches Spring Sandy well -drained soils; flowers white; small hairy strawberries;
Wild/Coastal strawberry evergreen; aggressive spreader
Helianthemum Sun 6" - 2 feet/ May - July Will tolerate various soils; low -growing, sub -shrub; many
nummularium 2 ft. spread yarieties are available with flowers in salmon, pink, red, yellow
Sunrose and golden colors; great evergreen ground cover
Lavandula angustifolia Sun/partial shade To 2.5 feet June - August Does best in well -drained soils without amendments; blue,
Lavender lavender, p ink to white flowers, semi -evergreen aromatic
perennial
Zone 3 Exposure Mature Size Time of Bloom Comments
Deciduous Shrubs
Species/Common Name
Holodiscus discoloe Sun/partial shade To 15 feet June - July Dry to moist soils; drought -tolerant; white to cream flowers;
Oceanspray good soil binder
Philadelphus lewisfi* Sun/partial shade 5 -10 feet June - July Adapts to rich moist soils or dry rocky soils; drought. -tolerant;
Mock -orange fragrant flowers
Ribes sangui . neum* Sun/partial shade 8 -12 feet March -April Prefers well -drained soils, but will accept clay; drought -tolerant;
Red-flowerihg currant rosy -red flowe'rs attract hummingbirds; dark -blue to black
ber'ries; thornless
Plant 32
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Plants for a Sunny to Partly Sunny Rain Garden, continued
Zone 3 Exposure Mature Size Time of Bloom Comments.
Ornamental Grasses
Species/Common Name
Miscanthus sinensis Sun/partial shade 2 - 5 feet, Summer The varieties listed, with slender leaf blades, are drought
'Morning Light', 'Little depending on tolerant; make good accent plants around the edges to mimic
Kitten', 'Yaku Jima' cultivar natural ponds; flowers persist through winter adding year-
round interest; cut back stems in late winter before new foliage
Varieties of Japanese begins to emerge
Silver Grass
Pennise tum Sun
4" - 4 feet, Summer
Several cultivar s offer different heights and bloom sequences;
alopecuroides
depending on
'
attractive, bottle -brush -like flowers persist through winter; cut
'Hameln"Liftle Bunrfy'and
cultivar
dried foliage back in late winter/early spring before new foliage
other cultivars
begins to emerge
Fountain Grass
Helictotrichon Sun
2 - 4 feet tall Summer
Striking blue foliage; drought tolerant; great accent alone or
sempervirens
and wide
in clusters
Blue oat grass
Panicum virgatum Sun
4 - 6 feet Summer
Drought -tolerant; several cultivars with different foliage; great
'Heavy metal'i
fall color
'Shenandoah', 'Dallas
Blues'
Plant 33
Plants for a Shady to Partly Shady Rain Garden
Zone I Exposure Mature Size Time of Bloom Comments
Dediduous Shrubs
Species/Common Name
Lonicera involucrata* Part:W shade/ 5- 8 feet" April - May Moist soils; prefers loamy soils; tolerant of shallow flooding;
Black twinberry shade yellow, tubular flowers attract hummingbirds
Rubus spectabilis*' Partial sun/shade 5 - 10 feet February -April Prefers.moist, wet soils; good soil binder; magenta flowers;
Salmonberry yell6w/orange fruit; early nectar source for hummingbirds;
makes thickets
Ribes bracteosum* Partial shade 5 - 7 feet April - May Moist soils; prefers loamy soils; tolerant of shallow flooding;
Stink Currant big palmate leaves -have pungent but pleasant aroma
Mature W e Time of Bloom Comments
Zone 1 Exposure Iz
Emergents and
Ornamental Grasses
Species/Common Name
Carex obnupta* Sun/partial shade 1 - 5 feet Moist to seasonally saturated soils; shiny foliage; excellent
Slough sedge soil binder
Juncus patens* Part sun/partial 15" - 3 feet Blue-green grass -like foliage; seed may be more easily found
Spreading rush shade in Oregon
Molinia caerulea Partial shade 12" - 18" July Many cultivars, including the creamy -yellow -white striped
Moor Grass 'Variegata'; an attractive border species
Scirpus microcarpus* Sun/shade 2 - 4 feet Wet soils; tolerates prolonged inundation; good soil binder
Small -fruited bulrush
0
Plant 34
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Plants for a Shady to Partly Shady Rain Garden, continued
Zone I
Exposure.
Mature Size Time of Bloom
Comments
Ferns
Species/Common Name
Athyrium fifix-femina*
Partial shade/
3 - 5 feet
Moist soils; prefers loamy soils; tolerant of shallow flooding
Lady Fern
shade
Blechnum spicant*
Partial shade .
1 - 3 feet
Moist soils; prefers loamy soils; tolerant of shallow flooding;
Deer Fern
shade
may require occasional summer water to look its best
Zone 2
Exposure
Mature Size Time of Bloom
Comments
Deciduous Shrubs
Species/Common Name
Oemleria cerasiformis*
Partial shade
5 - 16 feet February March
Moist to dry soils; prefers shade; tolerates fluctuating water
Indian plum/Osoberry
.
table
Symphoricarpos albus* Sun/shade. 2 - 6 feet April — June Wet to dry soils, clay to sand; excellent soil binder; drought
Snowberry and urban air tolerant; provides good erosion control; spreads
well in sun; white berries; flowers attract hummingbirds
Zone 2.. Exposure Mature Size Time of Bloom Comments
Herbaceous Perennials..
and Ferns
Species/Common Name
Asarum caudatum* Partial shade/ To 10 inches Mid -spring Moist organic soils; heart -shaped leaves; reddish -brown flowers
Wild ginger shade
Polystichum munitum* Shade/ 3 - 4 feet Moist to dry soils; prefers shade.
Sword Fem partial shade
Tellima grandiflora* Partial sun/shade 1 - 3 feet March -June Perennial preferring moist soils; yellowish -green to pink flowers
Fringecup
Tiarella trifoliata* Partial sun/shade To 1 foot Early - mid summer Moist soils; perennial with some drought tolerance after
Foarnflower established; can form dense colonies; white.flowers
Plant 35
Plants for a Shady to Partly Shady Rain Garden, continued
Zone 2 Exposurd Mature Size Time of Bloom Comments
Herbaceous Perennials
and Ferns (con't)
Species/Common Name
Tolmiea menziesfi* Partial shade/ 1 - 2 feet April - August Moist soils; brownish7purple flowers; also makes an effective
Youth-on-age/Piggy-back shade ground cover in summer
plant
Zone 3
E xpo sure Mature Size Time of Bloom
Comments
Evergreen Shrubs and
Groundcovers
Species/Common Name
Gaultheria shallon*
Partial shade/ 3 - 7 feet March - June
Dry and moist soils; white or pinkish flowers; reddish -blue to
SaIal
shade
dark -purple fruit
Mahonia nervosa*
Partial shade/ 2 - 3 feet April — June
Dry to moist soils; drought resistant; evergreen; yellow flowers;
Cascade Oregon
shade
blue berries
grape/Dull Oregon grape
Mahonia repens Sun/partial shade To 3 feet April - June Dry to moist soils; drought resistant; yellow flowers; blue
Creeping mahonia berries; native of Eastern Washington
Vaccinium ovatum* Partial shade 3 - 15 feet March Moist to slightly dry soils; small pinkish -white flowers; berries
Evergreen huckleberry in August
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PLAN NOTES:
- SEE SHEET 2 OF DRAINAGE & UTILITY PLAN FOR SPECIFIC
GENERAL NOTES AND CONSTRUCTION SEQUENCE.
- ALL STORM WATER SYSTEMS ARE TO BE CONSTRUCTED
PRIOR TO THE CONSTRUCTION OF ANY IMPERVIOUS
SURFACES.
- DRIVEWAY SUBGRADE SOIL TO BE TREATED AND
PREPARED PER "SITE PREPARATION AND GENERAL
GRADING" SECTIONS OF THE GEOTECHNICAL REPORT
- PRIOR TO CONCRETE POUR OF DRIVEWAY, A SPECIAL
INSPECTION WILL BE REQUIRED.
ALL NEW UTILITIES MUST BE UNDERGROUND.
IF RIM TO INVERT EXCEEDS 5'A TYPE 11 MANHOLE MUST BE
INSTALLED.
-A Hliviw4m oF 3'swAomw is PZMAP-M 1567rv467iE"
Tme aLy wriw-rie5 (^wE=, A+we, (alks, CT,-') A"O "vArF-x >
50� _5ZWVw, Al%�O S-11MM.
ELEVATION NOTES
PROPERTY CORNER ELEVATIONS TO REMAIN AT EXISTING ELEVATION
EXISTING GRADE CONTOURS ARE DASHED (HOR NUMBERS)
PROPOSED FINISHED GRADE IS SOLID (VERT NUMBERS)
TOP OF BANK
[921 5-a' [941 [961
[93.81 �` J pl,�FR
N 1148' DR�PSYSTEM
RE 95 0 To HOUS
90.9 TO PATI' E! 37--l'o 1
6
STEEP
_0' RISER
DRIP SYSTEM
PF = Q� n
DRAINAGE (CIVIL ENG) NOTES:
1. ALL DISTURBED AREAS TO BE AMENDED PER CITY OF
EDMONDS STANDARDS IN ACCORDANCE WITH THEIR
NPIDES APPROVAL (APPROVED COMPOST)
12. INVERT OF DRIP PIPES TO BE MINIMUM OF ONE FOOT
BELOW LOWEST POINT OF DOWNSPOUT DRAIN & PERIMETER
FOUNDATION FOOTING DRAIN.
3. ALL JOINTS BELOW CATCH BASIN 1 TO BE WATER TIGHT.
4. PVC EXPOSED TO SUNLIGHT TO BE PAINTED WITH
UV -RESISTANT PAINT.
5. SEE TARGETED DRAINAGE REPORT FROM CIVIL ENGINEER
FOR FURTHER DETAILS.
6. RE = RIM ELEVATION; IE = INVERT ELEVATION
7. ALL DRAINAGE PIPE TO BE 4" PVC.
8. DOWNSPOUT DRAIN AND FOOTING DRAIN TO BE
CONNECTED SEPARATELY INTO THE DRIP SYSTEM.
DOWNSPOUTS &
FOOTING DRAINS
35'SETBACK FROM TOP OF SLOPE RUN SEPARATELY
'P ER GEOTECH)
ECT Z7 7 CATCH BASINS
9 2 RE 101.5
IE 100.7
F�981�10�-G' (100) 102] [1041 (IJI/ 1101")
PROPERTY LINE 195.00 .01
R'OOF D�RAIN fNVE,R,TELE TIONS,
x 0'x,
116 1 1 IN GARD
Iks-
RESIDENCE'� G' ; RD LU
of 102. 01 ONSHIE72 C:) CL
ATIO 6 0
Q IN T 0��
CABLE' 958 A
Ci iCH BASIN I
PC) ! I
Rd
11 A WtH
fE :02.7
IE 90.9 1 'v, 1�1
00 109.41
N i7' 5310" R. I n e
CtEA0OUT 194 51 CLEANOUT [95.5) L
100%SLOPE�Zwl N - 10% LOT SLOPE CON I CRETE
S"VLL- @ BLUFF 6" CLEANOUT (92 01
:;z - I W/ 2CASI )RON LAMPHOLECOVEP DRIVEWAY
3, No AN", 112_ HEXBOLT� AT PPOP LINE
OF PeCT160 OF
9 'IL L.Alrotft SEWER:
'r A-' 14689 1 IF RE -USING THE EXISTING SEWER LATERAL THE CONDITION OF THE PtPE MUST BE
CAW^ 1"E� &A�e( 1."'CIT'Y'UTILITY:
Fwrk/ - EASEMENT VERIFIED BY CITY'S PUBLIC WORI'S DEPT. CONTACT EDMONDS SEWER DIVISION
- III,) C3N5&r4Z#.7r Of &yfCo FOR SS 425-771-0235 LATERAL PIPE MUST BE 6" TO RE -USE
'rO 46 CA -Ty WILA. RESIDENCE FOOTING ELEVATION 91.2'
%Ia.00 r-OM T RESIDENCE FINISHED FIRST FLOOR ELV. 100.9'
Po -rjops Of 11,w GARAGE FOOTING ELEVATION 101.4'
GARAGE FINISHED FIRST FLOOR ELV. 102.9'
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Drainage & Utility Plan
Scale: V'= 50' 0 10 so 100
C=�l I I 7_1
RAIN GARDEN (BIORETENTION) NOTES:
1. REFER TO GEOTECH REPORT (ADDENDUM 1) AND CIVIL
DESIGN FOR RAIN GARDEN CONSTRUCTION.
2. CONSTRUCTION TO FOLLOW THE BMP CITY OF f-VTRF�7 COM06"5-
DESIGN STANDARDS (E72B FORM).
2. SOILS ARE TO BE IN ACCORDANCE WITH THE CITY OF
EDMONDS STANDARDS (E72B FORM). SOILS SHALL CONSIST
OF A WELL -BLENDED MIXTURE BY VOLUME OF 3 PARTS
MINERAL AGGREGATE AND 2 PARTS COMPOST. FILL
EMBANKMENTS SHOULD BE CONSTRUCTED WITH SOIL 100%
PASSING THE NO. 4 SIEVE AND CONTAIN AT LEAST 30% SILT
AND CLAY PASSING THE NO. 200 SIEVE.
3. PLANT VEGETATION SHALLFOLLOW THE
RECOMMENDATION OF GEOTECH ADDENDUM WITH: RED
TWIG DOGWOOD, RUSHES, SEDGES, SALMONBERRY,
TWINBERRY, ROYAL FERNS, BIG -LEAVED LIGULARIAS OR
PRIMROSES.
30i 30:
%tar-pecti0a) "44NMO-W
(,0rj6TaA(_'nb" OF VZA10�VIAIL00'3'
see, Al-rAC#Mb PUMMEPOTS, 61WTL"A ' fZCPW_T,
.4%* ew6wwe9Ax* STANDA44% F-*W-
ILAWOC4
PARCEI B
10� ROAD, WATER LINE
AND PO\i\IER EASEI,,!Er\IT
im
10'DRIVEWAYAND
UTILITY EASEMENT
AF# 201208280429
WATER: PEX PIPE
USE I" MIN. DIAMETER AT 160 PSI.
TRACER WIRE ADDED IN LIEU OF COPPER PIPE.
Project Info:
17134 Talbot Road
Edmonds, Washington 98026-5051
27040700104300
Lots 2 & 3 - Sct 7, Twn 27 N, Ra 04 E
0
0
GAS
POWER
PH/CABLE
WATER
30'
0
LO
0 LID
0
Ln
LO
Applicant shall repair/replace all damage to
utilk as or frontage improvements in City
right-of-way per City standards that Is caused
or occurs during the permitted project.
FA
fosali�'
M
*-1_%1txAPx_ lwapoulokm Age
30' Azwjft-o eq L-1 th cA A%SoCJArII25-
C*sargAYL,
R El SUB
JUL 19 2013
aUp
.DlN(11 DEPAROAENT
OrTy OF EDMWDS
Drainage/Utility
Sheet I
Al e0
addendum
Drainaae & Utilitv Plan Notes:
CONSTRUCTION SEQUENCE NOTES
1. SCHEDULE A PRE -CONSTRUCTION MEETING WITH
CITY ENGINEERING DIVISION AT 425-771-0220, EXT. 1326.
TWO DAY (48 HR) NOTICE IS REQUIRED.
2. REVIEW TEMPORARY EROSION AND SEDIMENT
CONTROL NOTES.
3. CALL FOR UTILITY LOCATES.
4. INSTALL TESC MEASURES AND MAINTAIN DUST
CONTROL WHILE PREVENTING DISTURBANCE OF ANY
AREAS OF VEGETATION OUTSIDE THE CONSTRUCTION
ZONE.
5. HAVE EROSION CONTROL MEASURES INSPECTED
BY CITY OF EDMONDS CITY ENGINEERING INSPECTOR.
ALL TEMPORARY SEDIMENTATION AND EROSION
CONTROL MEASURES MUST BE IN PLACE AND
INSPECTED PRIOR TO ANY CONSTRUCTION OR SITE
CLEARING. EROSION AND SEDIMENTATION CONTROL
PRACTICES AND/OR DEVICES SHALL BE MAINTAINED
UNTIL PERMANENT VEGETATION IS ESTABLISHED.
6. DEMOLISH EXISTING STRUCTURES.
7. ROUGH GRADE SITE AS REQUIRED TO INSTALL
DRAINAGE FEATURES.
8. CLEAR, GRUB & ROUGH GRADE SITE. REVEGETATE
DISTURBED AREAS NOT SUBJECT TO ADDITIONAL
SURFACE DISTURBANCE IMMEDIATELY AFTER ROUGH
GRADING. (OTHER EXPOSED AREAS SHALL BE
STABILIZED PER EROSION CONTROL NOTES BELOW).
9. INSTALL UTILITIES AND OTHER SITE
IMPROVEMENTS, INCLUDING FRONTAGE
IMPROVEMENTS.
13. STABILIZE AND COMPOST AMEND ALL EXPOSED
SOILS PRIOR TO REVEGETATION OF ENTIRE SITE.
14. ESTABLISH LANDSCAPING AND PERMANENT
VEGETATION. ALL TEMPORARY EROSION CONTROL
MEASURES SHALL BE REMOVED UPON FINAL SITE
STABILIZATION AND APPROVAL BY CITY INSPECTOR.
GENERAL NOTES
1. ALL MATERIALS AND WORK SHOWN ON THESE PLANS SHALL CONFOR� TO THE
CITY OF EDMONDS STANDARD PLANS AND DETAILS, THE FOLLOWING
SPECIFICATIONS AND CODES, AND ALL OTHER APPLICABLE LOCAL MUNICIPAL,
STATE, AND FEDERAL CODES, RULES AND REGULATIONS:
CURRENT INTERNATIONAL BUILDING CODE (IBC)
2012 WSDOT/APWA STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND
MUNICIPAL CONSTRUCTION
- WASHINGTON STATE DEPARTMENT OF ECOLOGY STORMWATER MANAGEMENT
MANUAL FOR THE PUGET SOUND BASIN (CURRENT EDITION)
15. SEE ARCHITECTURAL DRAWINGS FOR PERIMETER FOUNDATION DRAINS.
FOUNDATION DRAINS SHALL BE INDEPENDENT OF OTHER SITE DRAIN LINES AND
SHALL BE TIGHTLINED TO THE STORM DRAIN SYSTEM WHERE INDICATED ON THE
PLANS.
16. ALL REQUIRED STORMWATER FACILITIES MUST BE CONSTRUCTED AND IN
OPERATION PRIOR TO INSTALLATION OF ANY PAVEMENT UNLESS OTHERWISE
APPROVED BY THE ENGINEER.
17 ALL ROOF DRAINS, PERIMETER FOUNDATION DRAINS, CATCH BASINS AND
2. STANDARD PLAN AND TYPE NUMBERS INDICATED ON THESE DRAWINGS REFER OTHER EXTERNAL DRAINS SHALL BE CONNECTED TO THE STORM DRAINAGE
TO CITY OF EDMONDS STANDARD DETAILS, UNLESS NOTED OTHERWISE.' SYSTEM, UNLESS NOTED OTHERWISE.
3. A COPY OF THESE APPROVED PLANS MUST BE ON THE JOBSITE WHENEVER
CONSTRUCTION IS IN PROGRESS.
4. DEVIATIONS FROM THESE PLANS MUST BE APPROVED BY THE ENGINEER OF
RECORD AND THE LOCAL GOVERNING AUTHORITY.
5. CONTRACTOR SHALL RECORD ALL APPROVED DEVIATIONS FROM THESE PLANS
ON A SET OF "AS -BUILT" DRAWINGS AND SHALL SUMMARIZE ALL AS- BUILT
CONDITIONS ON ONE SET OF REPRODUCIBLE DRAWINGS FOR SUBMITTAL TO THE
OWNER PRIOR PROJECT COMPLETION AND ACCEPTANCE. A SET OF AS- BUILT
DRAWINGS SHALL BE SUBMITTED TO THE CITY OF EDMONDS PRIOR TO FINAL
APPROVAL OF THE BUILDING OCCUPANCY/FINAL PROJECT APPROVAL.
6. ELEVATIONS SHOWN ARE IN FEET. SEE SITE PLAN FOR BENCHMARK
INFORMATION.
7. THE LOCATIONS OF EXISTING UTILITIES AND SITE FEATURES SHOWN H, EREON
HAVE BEEN FURNISHED BY OTHERS BY FIELD SURVEY OR OBTAINED FROM
AVAILABLE RECORDS AND SHOULD THEREFORE BE CONSIDERED APPROXIMATE
ONLY AND NOT NECESSARILY COMPLETE. IT IS THE SOLE RESPONSIBILITY OF
THE CONTRACTOR TO INDEPENDENTLY VERIFY THE ACCURACY OF ALL UTILITY
LOCATIONS SHOWN AND TO FURTHER DISCOVER AND PROTECT ANY OTHER
UTILITIES NOT SHOWN HEREON WHICH MAY BE AFFECTED BY THE
IMPLEMENTATION OF THIS PLAN. CONTRACTOR SHALL VERIFY LOCATION, DEPTH,
SIZE, TYPE AND CONDITION OF EXISTING UTILITY LINES AT CONNECTION OR
CROSSING POINTS BEFORE TRENCHING FOR NEW UTILITIES. ENGINEER
ASSUMES NO RESPONSIBILITY FOR THE COMPLETENESS OR ACCURACY� OF THE
EXISTING UTILITIES AND SITE FEATURES PRESENTED ON THESE DRAWINGS.
ENGINEER SHALL BE NOTIFIED IMMEDIATELY OF CONFLICTS THAT ARISE.
8. CONTRACTOR SHALL LOCATE AND PROTECT ALL UTILITIES DURING I
CONSTRUCTION AND SHALL CONTACT THE UNDERGROUND UTILITIES LOCATION
SERVICE (1 -800-424-5555) AT LEAST 48 HOURS PRIOR TO CONSTRUCTION.
9. CONTRACTOR SHALL VERIFY ALL CONDITIONS AND DIMENSIONS AT THE
PROJECT SITE BEFORE STARTING WORK AND SHALL NOTIFY OWNER'S
REPRESENTATIVE OF ANY DISCREPANCIES.
10. PIPE LENGTHS WHERE SHOWN ARE APPROXIMATE AND MAY CHANGE DUE TO
FIELD CONDITIONS.
11. CONTRACTOR SHALL OBTAIN A COPY OF THE GEOTECHNICAL REPORT
(WHERE APPLICABLE) AND SHALL THOROUGHLY FAMILIARIZE HIMSELF WITH THE
CONTENTS THEREOF. ALL SITE WORK SHALL BE PERFORMED IN STRICT,
COMPLIANCE WITH THE RECOMMENDATIONS OF THIS REPORT.
12. STRUCTURAL FILL MATERIAL AND PLACEMENT SHALL CONFORM TO THE
RECOMMENDATIONS OF THE PROJECT GEOTECHNICAL REPORT.
13. MANHOLES, CATCH BASINS, UTILITIES AND PAVEMENT SHALL BEAR ON
MEDIUM DENSE TO VERY DENSE NATIVE SOIL OR COMPACTED STRUCTURAL FILL.
IF SOIL IS DISTURBED, SOFT, LOOSE, WET OR IF ORGANIC MATERIAL IS PRESENT
AT SUBGRADE ELEVATION, REMOVE AND REPLACE WITH COMPACTED
STRUCTURAL FILL PER GEOTECHNICAL REPORT.
14. SEE SURVEY AND ARCHITECTURAL DRAWINGS FOR DIMENSIONS AND
LOCATIONS OF BUILDINGS, LANDSCAPED AREAS AND OTHER PROPOSED OR
EXISTING SITE FEATURES.
18 CONTRACTOR SHALL OBTAIN AND PAY FOR ALL PERMITS REQUIRED FOR
INSTALLATION OF ALL SITE IMPROVEMENTS INDICATED ON THESE DRAWINGS.
19 AS A MINIMUM REQUIREMENT, ALL DISTURBED AREAS ON AND OFF SITE SHALL
BE RETURNED TO THE EQUIVALENT OF THEIR PRECONSTRUCTION CONDITION IN
ACCORDANCE WITH APPROPRIATE REQUIREMENTS AND STANDARDS.
20. ALL DISTURBED SOIL AREAS SHALL BE SEEDED OR STABILIZED BY OTHER
ACCEPTABLE METHODS FOR THE PREVENTION OF ON -SITE EROSION AFTER THE
COMPLETION OF CONSTRUCTION. SEE EROSION CONTROL PLANS FOR SPECIFIC
GRADING AND EROSION CONTROL REQUIREMENTS.
21. THE CONTRACTOR SHALL KEEP OFF -SITE STREETS CLEAN AT ALL TIMES BY
SWEEPING. WASHING OF THESE STREETS WILL NOT BE ALLOWED WITHOUT
PRIOR APPROVAL.
22 THIS PROJECT IS NOT A BALANCED EARTHWORK PROJECT. BOTH EXPORT
AND IMPORT OF SOIL AND ROCK MATERIALS ARE REQUIRED.
23 SLOPE OF FINISHED GRADE SHALL BE CONSTANT BETWEEN FINISHED
CONTOURS OR SPOT ELEVATIONS SHOWN.
24. FINISHED GRADE SHALL SLOPE AWAY FROM BUILDING WALLS AT MINIMUM 5%
SLOPE FOR A MINIMUM DISTANCE OF 10 FEET.
25. CONTRACTOR SHALL BE RESPONSIBLE FOR AND SHALL INSTALL AND
MAINTAIN SHORING AND BRACING AS NECESSARY TO PROTECT WORKERS,
EXISTING BUILDINGS, STREETS, WALKWAYS, UTILITIES AND OTHER EXISTING AND
PROPOSED IMPROVEMENTS AND EXCAVATIONS AGAINST LOSS OF GROUND OR
CAVING EMBANKMENTS. CONTRACTOR SHALL ALSO BE RESPONSIBLE FOR
REMOVAL OF SHORING AND BRACING, AS REQUIRED.
26. CONTRACTOR SHALL OBTAIN APPROVAL FROM THE CITY AND FOLLOW CITY
PROCEDURES FOR ALL WATER SERVICE INTERRUPTIONS, HYDRANT SHUTOFFS,
STREET CLOSURES OR OTHER ACCESS RESTRICTIONS. CONTRACTOR SHALL NOT
RELOCATE OR ELIMINATE ANY HYDRANTS WITHOUT FIRST OBTAINING WRITTEN
APPROVAL FROM THE FIRE MARSHAL.
27. COORDINATE AND ARRANGE FOR ALL UTILITY CONNECTIONS, UTILITY
RELOCATIONS AND/OR SERVICE INTERRUPTIONS WITH THE AFFECTED OWNERS
AND APPROPRIATE UTILITY COMPANIES. CONNECTIONS TO EXISTING UTILITIES
SHALL BE MADE ONLY WITH ADVANCE WRITTEN APPROVAL OF THE AUTHORITIES
GOVERNING SAID UTILITIES.
28. EXISTING UTILITY LINES IN SERVICE WHICH ARE DAMAGED DUE TO
CONSTRUCTION WORK SHALL BE REPAIRED AT CONTRACTOR'S EXPENSE AND
INSPECTED AND ACCEPTED BY CITY OF EDMONDS AND OWNER'S
REPRESENTATIVE PRIOR TO BACKFILLING.
29. NEW UTILITY LOCATIONS ARE GENERALLY SHOWN BY DIMENSION, WHERE NO
DIMENSIONS ARE INDICATED, LOCATIONS MAY BE SCALED FROM DRAWINGS.
FIELD ADJUSTMENTS SHALL BE APPROVED BY OWNER'S REPRESENTATIVE AND
CITY.
30. WHERE NEW PIPE CLEARS AN EXISTING OR NEW UTILITY BY 6" OR LESS,
PLACE POLYETHYLENE PLASTIC FOAM AS A CUSHION BETWEEN THE UTILITIES.
RESUB
JUL 19 2013
MCI IDEppjjqWNT
sUVLD1 C)F ItovjONDS
0"
Drainage/ Utility
Sheet 2
Al e0
addendum
Lambert, Jennifer
From: Julian Liu <julianliu100@yahoo.com>
Sent: Friday,- August 02, 2013 5:4.9 PM
To: Lambert, Jennifer
Cc: lieh962.lieh962@msa.hinet.net
Subject:' Fw: Chang Residence - 17134 Talbot Road, Edmonds
Hi Jennifer,
Regarding the city's comment on drainage of footing drain line of the subject project, it is my opinion
that water in footing drain line of the house may be dispersed through the spread pipe dispersion
v
systems or discharged into the rain garden provided that the low point of the footing drain line is at
least 6 inches higher that the invert of the spread pipes or the top of the rain garden.
Thanks.
Julian Liu
LIU &ASSOCIATES, INC.
192-13 Kenlake Place NE'
Kenmore, WA 98028
(Office) 425-483-9134 (Cell) 206-354-1291-
LW&ASSOCI AT.t$..,1NC.*.
GmIeOnlcal Engineenkg
July 15, , 2013
Or.. Lieh'Ching C hang
17134'Talbdt Road
Edmonds,. WA 98026
bear-Dr-Ohang-
. 1. C�
Eadh Sci&ke
RESUB
JUL 19 2013
BULDING DEPAFLIWNT
Crly OF EoMONDS
�5Subicct-.Add,&,ndWh N6, L
I'nfiltrzition.T&st�.'and.Oh4iie Stoftniwatei:Di�sposifl
New Chang Residence
1.7134 Talbot Road
Edmonds. Washinaton -F
/L E
L&A Job NO. 11-081
1NTRODUCTION�
'We previo usly peifornied a geofechnical investigation for the developrnent:pf the subject
residence, With our fihdings.-of'the's'itt�e4nd.iti6ns and:pur ge.atechnical reconimendations:
presented in a re ort iitled "Geotechni.cal, Investigation New Chang Rq�id.ence.l 17,134
,p
Talbot Road-, Edm . o I n&��.Wa�hih.gton-"-"-d�ted-S.'e'ptei.iiber .15, 2012 (here ihafter:rcferred: Ao
as die 9/1.5/2012 Report (Doti ons. for-d isposalof collected stormwat.er were presented.,in.
the 945,12012 Report, 'W- hich inclti&:� DAischOge'water. through -a tightline-tied to� the..
north nciglibaCs existing storm drain Iihej disperse water -through spreader pipc.
di spersion systerns' alohz' the"� sides... 'of, the, back yard, and 3) spread water, through� a
spreader pipe dispersion:1 *stem installed over a flat, well-mycgetated �area at. thebase of the
Sy
,bluff
19213 K.enlake', Plaide, NE.� .- Kenmore, Wa'shington 98028
Phon'64426):483-9134 Fax (42.5) 4:86,;.2746
k
JulV 15 2Q13
end um.No. 1. .to, L&A 9115/ 2 0.12 �Geotqc hnical Report
Ch44-Residence
L&AllobNo. 12-983'
Page-1.
Option 1: above. was,, rut , cd qui. . becausel deierition.ficility would be requiredJo store...
stormwatcrand sior�d�u7dtcrl.i.�.,to.be�..'�*pe into nei gbbor's, storm drain I i n.e. olf(pe.ak...
Option 3. %Y* not chosen Iis.g'ettkg�'a. perm t�fr BNSF Railtoad Company Aakes too.
n I om
lona-a timc:with-no iwar�intee ft.-tan:,be securcd� 'We under.stand;;-that after �',further
evaluation'you'bave d&cided: to,. go with:,.an.: improved Option,.2. with. a combination of
s ader pipe'di,5persion s) P 4 -.D
pre ystems: and a r�i g rden to: dis ose, stormwater,onsite. The
spreader pipe �djs ersio 't- &Iabe installed oil, the sid&of the backyardto.spreaid'
toof,riinoff *of the�,house and --the 'rain en is,-to::hC,.cons-Lructcd :in the front yard to
gard
dispose r6of :runoff �of t . he' garage and. the runoff over the driveway., ThIhs option is:chosen
to.sp 6d in, A
.read Stormwater in. a diverged manner, over the. entire site rather concentrat
limiiiedlrca . ..
To:, determine:�.soil infiltratloh taW.for desi& of 'the proposed,.xain garden�, two in -situ
infi Itration tesu have been conducted i;n the front yard. Presented, i in this,, addendum ar6
the results -of.the infiltrafion: tests and -our, modified reic,.ommendations f6i -� orisite;
storniNvater disbqsal-,Our rec I ommetidationsIor, the'.. spreader Pipe &spers ion systems''hAve.,
been ftwluded.Jn�ouf 9./l:5/1-0l,2,,,R.epqrt.
IN-SITU.NFMTRAXION,.�TESTS
mine t e s n iltrate rate in the
Two in' -situ. infiltratioh,lest's Were.cOnducted to deter h oil h f
sts W-ereperfbrhied 6n.hjly.�
frontyard, where the, mi rde'tvis:�t6..Ibe constructed-. These, to..
mga
12, 201 3. 'The locations. of theInfiltration tests, I.T74 and IT-2, Are sliowrvon Plat�,Ll
,LIU ASSO ClikT, ES,I INC.
July:.15,�,2013
Addendum!No, I'AoL . &A9 I /15/2.012 Geo teehrii:01 Report
ChangAesidenbe
UAI Iob%N6.'- 1' 2708-3"
P49 3
p
INFILTRATIONT'E'ST PROCEDURE
The in -situ. infiltration'tests. were conducted "in accor6nee,with.the.. procedure. outlinedjn
Washington, State Department:.�.of W05 . StbrinvNater:,Miinai,�ement'ManuaI for
Westem`Washington. For each test, a. pit was excavated to about: 2.5 to.., 3 �.,O,ket.,deep-
into the., soil 10,,Which;,� the: bott=: of .'the 1, rain garden..wil.l be excavatpd.. Each. Dit was,
nicas, I ured Vor dinicnsion�,. of.its"'b6ttom,area, then'Jilled, with water: for hours until the
am I ountof water, infiltrating -into. bouom":bf Ad: pit. reache&a:,steadv stutefix-., .'Ihe, volume
of: water., in filtrating , into. the. ground: diro.ugh b�ottom, of the�pits:, was the..same as,, the
voluine,.ofwater disch-argpil into the Ajits while,vater, leve.1 in� the,, pits was kePt. at a
constant cicvation) for �at least" an.':hour., Clear tap: wa , ter was used, in the �testsl.'I, "Ibe
.infiltr,titi'o'rl.te8ts:�,VAS'Co'ndii�ted.'b,v-'.thi!,�,c:oil�t�nt head.method with.,they.olume-of "water
disdfiargcd, into the pit measured. 'with, a. flow:meter:attached-to the -hose conveying. water,
from the faucet into the pit fq.r.a,-.,peribd.of 30 rninutm. 111e.l.vo,lume of water discharged
dwas,measured, i I J. S"ga Ron S�while:wa,ter,
cac mmu Ppqto
.into b. test pit,duting.4he,30- t j P�.
in the � its. remained, Eit a consiahtjevel..
p
SOIL,CO,NDITIONS
j
siltv P d
Both test pits �encolihwrq &,a'ja.�O.Of dAik,�,broy.n;,loosej, organic. topsoil. of, ihersan"
y i gfli t I"ht-
With IZAnches�-,thiek-,, e,, opsoil is a I a er of �broxvn �to ig
b dium . d
rown, oose:to. me. ense,,.,gr-,tyc.11v�fiiie.sand..dbou't L!,f5feet. thick. TJ s� kyeris-.
underlain t6 the bottorn of thetest. pits: by aAight-wgrky deposit Gf 'dense,,,,fine. to iiitdiuM
sand:with tra�c to wnicgravel.
LIU: & ASSOCIA"Tt's.)IN.t..
july".15;.2013
Addendum No." I Report
Chaini'Residence'.
L&A Job No., 1.2-083
Pkple 4
TTSTR
�.into
The,, infiltration itest.,resufts are: pr6ented�'b0ow. 17he volumes...of vater Ainharge
th -dj,
e.-test pits o.vera,period of.30 n-i.inuteswi,th..a,co,nstant.:�vate'r�lev.eI in the Dits mea.sure in,
gqllons:�werel,'Con'%,Crted,,into -cdbic,,feet, then''a.ivided,.by,the bottom, areas,of the, pits, to
'derive':Ahcinfiltration rat�,Jnjhich s --eir,'hour60h),,of eadbjest. A'.correctionTactorof 4"�9
e P ,
�is ',used.Ad dete'rminc tj the. &sign �infill :thc, fine to medium a d. de osit
wi 11 tration rates of §,]P p
at bottom, of the pits.
Volume of Water
irifiltration.
�Design-
Test
Discharged'into TestilPit
T6aPit
Time
Rate
nfiltratio'll
No.
Bottom
-Hours
iph
Rate,. iOh:
Gallons':
Cubic -feet
Area
IT-1
9100
12A3':
1.5.6
3.90
-IT .72
148,;00
4
0.5
.7
.19. &
4.�95`
With a correcti O*nfktor of 4: 0;
.CONCLUSIONAND RECO"ENIDATIONS
DeAgni luffiftationAw.
osit,, determined
T n rat& of the 1iOt-'gr4yi;,f1ne to,., medium, sand OP
he�!desig Aftfiltnition
from the. in -situ infi Itration tests wiih a.,corrt:ctiob factor of 4.0,. are 3.90 andA.95 iph, ifor'
. 'rest . %:.� IT- I and IT-2, , s e tively Howe r, ac 0 s 9tormwate"r,
re,p C c., rd.ing to E,dmond� LID
B W, S e or 17,11in gard6i should -not
sirn lificd Sizing .(No'. E72B)� th � i Itration-,rate used f,
p
LIU.',& ASWCOATES15 INC.
V
J A
u y'I 5*�� 2013,
Addendum No. 1:16 L& , A 9/ 154201.2'Oe'd technical RePort
Chang Re'sidence
L&A Job No. 1'2'09'S
Pagc,5'
hemor'e'thanIO-iph. Ther'efbre,,�,ve,,.recommend�,that.a..�design"mfiltrt.ttionraie,:,of'2..*O�,:*"h
be used,hr sizing the ram garden,'to be installed in. thefront yardto, dispose.r.00f runoff.of.
the , aragp, And ethetun6ff over the.,paved ivewa
9 y
IWni GaideimCOOSO.Uctiofi
A typical."se6tion of the raingarden, is shown: on PlateI. Ile umposedlain. P-ardew-should
wi S Icr in ed up sand,
bel--approximatelyo.3' fe�cdeep ijh; it 'bottom�cut.'irito the.li"1117 jay, f -elo M . J..
4n
foucut"bariks
deposit. Theslo e� U...-'be.--,,no,s,tceper�than,-.2
0. ofthe pon&.banks sho, Id.
int�,. of� fifl, embankrnents. should
:and: no stt*�eper'thanl. 3H- IV for fill. 6mbaqkments.. FoovP
be cleared and ihoroughly. grubbed.and sufficial -topsoil and unsuliableisoils in,rbot zone
sbould.btcoirnpletel §tr�poed.,�E.xpogod',,sQil',.sho.u.i.d��.be c.oqipac-tqdjo a,non-7yieldipg state,
y
and p'roof-ro]U with a piec;e;of,:hc�avy'qartbWork equipMent pri'or to fill embankin
Onstmction; Fill:4�tiibdhktnent��Ishoiild,b.t'�Donstructed.with soji'l,00% passing: theNo., 4�
-si , I . t and RIF
n. SIM.
sieve and eonfii at: least, 3,0% of ct�y passing the No, 200
an I -in s at
ernbar�ents:,shouU be, placed. in, fifts�.no more th Ph lo(j e st e and,
as I t M di-y: density M.: D! 551
corripact.cd- taotIe 95%,G tht, iiq'a' xiiji urn detennine& �y,A�T
an
omp
(Modifie& proctor rnethod).' After Iction; the 'Mciping fke,ofcutbanks' dfill
embankments:shoxild be eornpaeted,to a.tion-yieldih state With:,afioe�pacL Forwater,
'9
quality control, die,pond-should b�,li . hedMith a laver. of amended least 18. incbeg
t . hick. 'Me ablended-1,SOH shou'Id'haVe 30-'Ib.35: percent -of: cojnpo�t tilled,into ih�..barik
native,.sO*il--*to.aehieve,a n*'*c,)r; t of. io%by. �dry weight;
gamc...con ent
INC
July 1.5, 20,113,
dwn No. I to hific R r.
Adden I Z .1� eotec —4,—cpq t:
L&A46b,No,�' f2-093'
waier;and:,saturated
vegetAtion-planted"i h tarden. should."be t6lerant..of,ponding
ml e ram,
ener I the
spil-donditionsin the winter months�,-and drouOtIh the summer, months. InIg 4
..,assoc . 1
tplants shoul 1W uitive:'�pPeigs,ada ted:to s �tedwt
,pre&tiunan a be of 61 p
n n*S,. Typica6, �i�e rain g4rd6m,olants m4�
com rise of 'red twig
wet and drIv co ' diti b P-
a and twinberry aia I d:omamentals: such as royO-fern's'
dopkoodrushes, sedges: s Im0fiberrY
big leaved li IArias,or various.,priii1r6ses.
9- P
This report has.been: p ared for the;specifil , c ilpplic-atioti.,io,,this:proje-i�t�forztbe.ektlil�ive.�
rep
t I �yes. eon nts and contr . actor� % - rthe.�
use by':PT. Chang,�an.&hi.s,associates, ieproOtA ta
r d
conelusion.�,znd intcrpretkitions inithis reo6rt,' howeNe,. should not be constrwi as a
-subsurfke�condino . n . S. . Thc'Iscope oftftis �r�pqrt: does not iiiclu&-services
. reldled to construction safetyr,precaut . ions and aur, recommcridation.s.. ar& �6t. intended to
nce or proceduresi. ;!Xce'pt' 9s':
direct the �Ontractors rnetho&, tdchn�"ques, seque, - s
design considerations.,
specific�ll.v,-desciibed-,iii�.this report for
.Our recommendations aind.con0u�ibn are hased,�on the, gcol6gicand.soil conditions.
wnt, an f c
encoubtere -e gineeringj:udgn d:th
0 by the infilirdtionlest PI our xperience anden
pmIons
h n
infiltration'test results. j e,conchigio" s and recommendations are,pyofessional o
derived in, a rnarmer, con�istenvvith:.th ev 0 1 o dinanly exc.r.V.Sod by,
el 4pare,:ai d',sk-11
-ioncurrently practicing under,similar conditions -iw',this'arca.
other membem of the pro.f6s
No-WaOpty, I tX 1. es - sed"� Or"Inphed. i s �Tnade.
Pr
tiu,:& AsSOCUTES.. INC.
Jul' IS. 2013,
,y
Aikendum -No.J'jo.wL&.A -q/,1"5`/`2`.0.t�2�:G.c6tectihicafk,�portl:
ChabgResidefic'e'
Page.l.
,The actual: subsut.face.;.conditions'l,i-n,-:thearea of the,prpposed, rain.lgarden:ma vary ftom
those� encoLintere&by. theinfiltraMi'd Thi�:.nAtufel:and-e �iit,,of�,such variations
n. test "PAS xt
ji�qy not b;e�() r Me, evident untiltonstructimstarts'. if variatiolis-4pear, th.en.�, we-should".be'
r6taincd-to reo�cvaluatc the recommendations.of 'this report, arid 'to verify or modify, -thefil.
,in -Writing Orior to proceedii�R.:.funhcr,with,thc�onqruction,of.thc proposcd'-devc1op1mcnt,
'A cop 'b ,brovidcd. t thc contractor of infilirmion.- trenches for
_Y of this: report, should. 0
CoMpliarict. with the, 're(�Iqrn m''endation's in thi� report. Construction of spreader',pipe
.dispersion systei-as.im'd-rain..gard�.e.ns�shotild, b6-observed and monitor*O byra,:gcotc,chnical
CL V"_
� OS
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'have any 'qpegti'on's�regardin''g',t,his,report;or,,need:,fui*ther!ccinsiiltation.
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LIU& ASSOCIATES, IN C.
Gootathnical Enginae(ing Eqpneering Oeo[Qgy
April 11, 2013
Dr. Lieh Chinp- Chana,
t7134 Talbot koad
Edmonds, WA 98026
D m. Dr. Chanp-:
Sul*cu Responses to Plan Review Comments
Chang Residence
17134 Talbot Road
Ednionds, Washington
L&A Job No. 12-09")
Epr1h SdencE
RESUB
JUN 03 2013
BUILDINQ DEPAR7WENT
CITY OF EOMONDS
STREUT FILE
Re'garding the geotechnical cornments in City of Ednionds 3/19/2013 letter by Mr. Mike,
(*lug.ston and the 3/1.9,12013 letter by Ms. Jennifer Lanibert, We have the following
responses:
3/19/203 Review Lette
ITC111 5
our recommendation of setback of 3-5 feet from the Lrest of the steep bluff for the
proposed rcsiderice includes a reduced buffer of 20 feet from the crest of the bluff'
and a 15 foot setback from this buffer.
3/28/2013 Review Letter
Drainage - Itein 5
a. The existence of a storm drain line of the existing house currently occupying the,
ifte and its proper and adequate function should be verified before it can be used
fqr discharging collected st-onnwater of the proposed new residence. Storniwater
Y b
carried b this drain line, if available Lind rurictioning., is to be disposed throuf
19213 Kenlake Place NE Kenmore, WA 98028
Phone (426) 483-9134. Fa.x (425) 486-2746
April I t. 2013
Dr. Lieh China Chana
L&A. Job No. 12-083
Page 2
an elevated di§persion pipe system installed at the base of the bluff. If this
dispersion pipe system is located within the railroad right-ol*-\vay� a pennission
Would have to be secured froin the railroad compiln�.
We understand that the adjacent residence to the north has a storm drain line
.which carries and discharges storiwvatcr onto a rock spall sphish pad at the base
of the btuff We also understand that the owners of this residence have given
verbal consent to Dr. -Chanp- to aliovv storrnwater of" the subjjeci new residence to
be.. discharued into their storm drain line, If this is the case. then it would be a
viable and safe way to dispose siorTnwater collected from the Chang residence.
I -
b. If neither of the above options is feasible., then two elevated dispersion pipe
.systerns (with typicat section shoNvn on Plate 3 in our 9/15/2012 report), onee along
each of the two side fringes of the baQ.kyard, may be used to dispose roor runoff
of the house. ThQse elevated spreader Pipe S)�.SteMS Would allow disposed
storm,vvatcr to evaporate into the ambient and be absorbed by the root system of
grass and planted shrubs, wdth niininial infiltration into the ground.
Qrqinag� - Ttem 6
We anticipate the amount of water collected into f6oting drain systern to be minimal,
0
and niav be discharized throu-1i the dispersion pipe systems an, &'or the rain gurden.
Water in footinA dmins should be tightlined separately frorn other subsurface drain
lines to discharge but may be tied to the same stomiwater disposal systern as Iona as
n ra n
the discharge point is at least 12 inclies tower than The lox point'of the footi i—LA—i-
system. ,
if necessarv, a rain'garden may be located in the front yard to dispose roof runoff Of
the uaraue and runoff'of the paved driveway. Water stored in rain gardens is mostly
evaporated into the anibient and absorbed by the root systems of'vegetation planted in
rain gardens. with rnini�inal infiltrating into the ground. Thercf6re. it is our
LIU & ASSOCIATES., INC.
April 11, 2013
Dr. Liell China Chan,
L&A Job No. i 2-083
Page 3
recommendation that the rain gardenof.the sub�ject prqject be sized based on a
p-scudo infiltration rate of 0.5 iph.
A typical. section of rain garderis is shovvii on Matz I attached licretki. Storm.runoff
over the driveway should be routed into a catch basin equipped with an oil/v',-atcr
separator before being discharged into the rain.garden. The rain garden should he
ap . proximately 3 to 5,feet deep. Ilie bank- slopes ofrain gardens should be no steeper
than 2.511:1 V for 6ut banks and no steeper than 311:*IV for fill. embankments. Iopsoil
and surficial. weak soil within footprint ofpo-nd fill embankments should be stripped
dow-n to the underivin.a. n.ativc, firm., stable deposit. The exposed soil shou Id be
compacted to a no-n-yielding state with a vlbrator�,, mechanical compactor. 'llie
botioni of fill embankments of the fain garden should be keyed at least 12 inches into
the till soil. Fill embankments should be constructed with soil containing at least
0
35% offine-Qxained material (silt and clay combined), no ni&c than 25%passinatlic
No. 20 Sieve. and with par6cle size no larger than L."2 inch. Fill embankrnents should
he constructed in lifts no more than 10 inches thick in loose state, with eacb lift
compacted with. a non -yielding state Nvith, an clephant-foot pr sheep -foot mechanical
compactor. Soil to be used for fill embankment construction should have d moisture
content within 0.5% of its opTinium i-noisture content. Optimum MOiStUrc content is
the moisture content olf soil that enable the soil to be compacted to the maximum dry
density, for a given conipaction effort. 41-ic pond of the rain garden should be lined
with a laver of amended soil at leasc 18 inches thick, The amended soil shOUld have
30-to-3 5-percent-of compost -tilled-into-dic-rain
'organic content of 1.0% by dry weight.
Plants of the rain garden should be tolerant, Of PL)Tiding water mid saturatcd soil
conditions in the winter months and drouaht in the summer mondis. Tn general. the
predorri.inant plants should be of facultative specie.; adapted to stre..,�-ses associated
With wet and dry conditions. rvpicallv. th
e rain garden plants may cornprise of red
L'It & ASSOCIATES9 INC.
April 11, 2013
.Dr. Lich Ching Chang,
L&Alob N o. 12-083
Paec 4
mig doo ood, rushes. sedges, salmonbeiry. and twinbcrt-y ana'ornamentals -such as
royal ferns, big -leaved figularias or various priinroses:
Dr.a.ina2c-.1tem 7
If the recommen'dations in our 9..'15/1012 geotechnical report and in this response
tetter are fiffly im lemented dLirin- construction, there should be minimal infiltration
p
of storm -water into the g
,round.
Please,feel Iree to contact us. ifyou. have questions,
One plate attached
Yours vcry iruly,
Ll� I �!ASSOCIATXS, IN(%
J. S. (Julian) Liu, MD... P.E.
ConsultinLy Gcotechnical Engineer
LIU & ASSOCJATES� INC.
Lit & ASSOCIATES. INC.
Geme.-hnical Enginewing - Engine�qr-.rg Gootogy - Ea--th SCiencp
ti... . — I..
. . .. ........ . ..... .. ... ..
RAIN GARDEN TYPICAL SECTION
CHANG RESIDENCE
17134 TALBOT ROAD
EDMONDS, WASHINGTON
OR NO- 12-083 1 DATE 4,(.512013 1 PL
f
LW & ASSOCIATES, INC.
Geo-ntmicate m_�e E Geology
september 15. 1-012
Dr. Lich Ching Chany
17134 Talbot Road
Edmonds, WA 98026
Dear Dr. Chanu:
Subject: Gcotechnical Investigation
Ne,.%, Chang Residence
17134 Talbot Road
Edmonds, Washingmon
L&A Job , No. 12-0833
INTRODUCTION
Eal.l' S,�ienw
OT
0 1 REET FILE
aq
FEB 2 2 2013
DEVELOPMENT SERVICES
COUNTER
We have completed a geotechnical investigation for the development of a new residence
on die property located at the abovc address in Edmonds-, Washington, The general
location of the property is sho%%n on Plate I — Vicinim Map. The purpose of this
investigation is it.) chdracterizt: the subsurface conditions, of the residence site and pro -vide
geotechnical recommendations Ilor slope stabilization,
grading, erosion mitigation, surface
and ground water drainap
ze control, building setback. and building foundation support for
the development of this new residence. Presented in this report are our findings of
subsurface conditions ofthe site and geotechnical recommendations,
'Mis ocotiechrucal investigation is based tin the subsurface conditioni encountered bv,
C I
three test pits excavated on tbc adjoining propcmy (17130 Talbot Road. hereinafter
referred to as the "Reference Site") io the northwest of the subject pruperty, on which a
single-family residence had been developed in 199-5 - 1996. The findings of the
19213 Kenlake Place NE Kenmore, WA 98028
Phone (425) 483-9134 Fax (425) 486-2746
September 15, 2.0.12
Chang Residence
L&A Job No- 12-08")
Page 2
subsurface conditions of the Reference Site, and geote,chnical reconunendations for the
development of this neighborino residence were presented in lhe 130,199-5 report. titled
Z-�
-Subsurface Fxploration. Geologic Ha7ards and 6vowchnical F-riginvering Report. Heard
.Residence, FAmonds, Washingion-` thereinafter referred to as the Reference Report) hy
Associated Farth Science's... Inc. (,hereinafter referred to as AES)�
For our use in this investigation, you proxided LIS with. a property boundat�- survey plan
showingthe outlines ofthe house currently occupyingthc site. Thissurveyplan
is presentedon Plate 2. The subject residence bite is a steop bluff propert-� overlookmig
Puget Sound, elong�ted in the northeast to southwest direction. We understand tile
existing house on the site is to bc. demolished to make way for the construction of the
proposed new residence. We also understand the new residence will be an aboVe-gradel.
t,.N-o-,�torv.woOd-t'ritined'stru�turc,.tobes.upponedon erimeter concrete foundation walls
p
and interior bearing walls. bearris and columns, The neN,�' residence is to be located over
the footprint of the existing. residence with some expansion out to the front and the back.
SCOPE OF SERVICES
Our scope of services for this stud comprises, specificall,- the 1011ov-ing:
Y
Review the geologic and soil conditions tit the Subject residence site bas.c.d. on a
published geologic map.
2. Review the subsurfiace conditions in the Reference Report for the Reference Site
and from which characterize the subsurfiacc condition of the subject residence
site. -
September .15.1 2012
Cha:ng Residence
L&A Job No. 12-083
Page 3
3. Perfonn necessary geotechnical analyses and provide geolechnical
recommendations f6t grading- slope stabilization- erosion mitip-ation.'surfAce and
ground water drainage control. and foundation desl,,,,,n and construction for the
development of the subJect -residence.
4. Prepare a written report to present our findings and recommendations.
SITE CONDITIONS
SURFACE CONDITIONS
'Me S*ect residence site is a high -bluff property overlooking Puget Sound. The site is
accessed via a joint-us.e dtivekvay from Talbot Road to its southeast end.. It. is a nearly
rcctangle-shaped parcel of land, about 50 feet wide by more than 237 fi�et deep, extending
northN,vesterly over a.gentle shelf area. then steeply down a bluff to the 13NSF Railroad
right�of-way. Adjoining its northeast an
r-1 d southivest sides are single-family residences.
The shelf area is about 195 to 205 feet long.
An existino housemith a detached P-araoc currently occupies about the.n.iiddle third of the
subject residence site. 17he terrain within the site generally slopes down gently to
moderately firom its southeast end westerly towards the, front of the existing house. then
gently down northwesterly with several concrete. �;teps along the north side to the rear 6f
the house, then down vcn, gently northNvesterly tt-nkards the top of -the bluff, before
dropping steeply (at about 100% grade) to the right -of' -way of the railroad below ncar the
P
beach level.
We understand the existing house is to be demolished to make way For the development
of the proposed new residence. The front yard is dotted by mature omarnentAl trees and
LIU & ASSOCIATESINC.
September 15, 2012
Cha ng Residence
L&A Job No. E "1-083
Page 4
covered bv lawn vrass. The back �ard is Ulso covered bN law-n ass. The bluff bcloxN- the
C. I gr
back -yard is covered b� shrubs.and ver�-dense brush NAifli few or no taA mature trees.
GEOLOGIC SE1TING
The Geolop-ic Mar) of the 'Fast Edmonds and Part of the West Edmonds Quadrang e
.0
Washing n. by James P. Minard, published by Ii. S. Geological Survey in 1983. was
go
referenced,jor the geologic and soil conditions at the site, According to this publication.
the surficiaws6i.1 units at and in the vicinity of the subJect residence site are mapped as a
Vashon Till.(Qvt) soil unit underlain by a Whidbey, format ion (Qva) soil unit.
The
. leology, of the Puget Sound Lowland has been modified by the advance and retreat of
geveral glae iers in the past and subsequent deposits and erosion, The latest gJacier
advanced to the Pug;t-Sound Lowland is referred to as the Vashon S.tade of the Fraser
Glaciation. which occurred during the,later staves of the Pleistocene Epoch, and retreated
.from the region some 14.500 years ago.
The deposits of the Vashon till soil unit were plowed directly under glacial ice during the,
I - -
most recent glaciation period as the, glacier advanced over an eroded, ir'regular surface of
older formations and sediments. This soil unit is composed of a mixture of unsorted clay,
silt. sand. gravel, and scattered cobbles and boulders. The Vashon till soil over the top
two to three fieet is nomiall-N, weathered to a niedium-dense. state, and is moderately
pemieable and compressible.. The underlying fresh till soil, commonly referred to as
"hard pan", is' very dense and weakly cemented. The fresh till soil possesses a
qompressive comparable To that of low-gradc coner etc and can remain stable on
steep natural slopes or man-niake cuts for a long period. The fresh till deposits are
LIU & ASSOCIATES, INC.
Scptember 15. 2012
Chang Residence
L&A Job No. 12-083
Page 5
practically impervious to stormwatcr infiltration, If remained undisturbed and well -
drained, the.fiesh till soil can provide excellent foundation support to structures with little
settlern�nt expected.
The Whidbev forniation, is com osed of non -glacial river flood�plain deposits. it consists
V
of fight-broxvn to gray, clayey, t-me!-s,;MdN- silt with occasional gravel. The Whidbey
formation deposits are generally very -stiff to hard in their native undisturbed state. They
are of very low permeability and tend to perch groundwater seeping into the, ground.
REV.LEW OF -SUBSURFACE CONDITIONS
Soil Condition
Subsurl'ace condition.� of the Reference Site were explored by AES. with three backhoe
test pits to depth&from 5.0 to 10.0 feet. The locations, of these test pits, designated.as EP-
1. FP-2 and EP-3, were lined up roughly in a straigl
rit line, with EP-� I closer to the top of
the bluff., EP-3 closer to thc10 the access joint drive,�vay� and EP-2 in between. A laver of
fill from 2.5 to 4.5 feet thick. was cticountered in Test Pits'EM and EP-2- increasing in
thickness toward the top ofthe bluff. tinderlying the fi - 11 in these two test pits and near
.the surface of Test Pit. EP-' ), a brownish -gray to vello. wi.�h-brown deposit of medium -
dense to dense. g
ravelly, fine' to medium sa d was encountered. Mis deposit was
interpreted as ofa glacially consol idated :advance outwash soil unit. Underlying this
advance outwash was a light-g*ray, stiff to hard sandy silt encountered in FP-'-.
We expect thc.,Oil condition of the -subject residence, site to be sin-lilar to that of the
Reference Site. The back yard of the, Reference Site rises about 4 to 5 feet above the back
yard of the subject. residence s ite, indicating the back yard:6. . F the Reference Site had been
raised and level with fill w hicb was.confirmed by the fill encountered in two of the three
LIU & ASSOCIATES, INC.
September 15, 2012
Chang Residence
L&A Job No. 12-083'
Page 6
test pits cxcavated,on the Reference Site. Less rill, if any, is anticipated over tile subject
residence site. Therefore. we expect. the subjcct residence site to be underlain at shallow
depth by glacially consolldatcd medium -dense to dense gravelly S3nd and stil'l' to hard
sandy silt soils, These soils will beconic denser and harder with increasing depth,
GROUNDWATER CONDITION
Groundwater seepaue was not obscrved on the shelf area of the subject residence site
during our site visit. Only onc of the three test pits (T-.P--" the middle test pit) excavated
on the Reference Site encountered minor g�ound-,vatcr seepage at. 7.0 feet deep. We
anticipate the groundNvater condition of the sub�jc ct residence site to be similar to that of
the Reference Site. The gTavelly sand soil underlying the site at sliall0w depth is of
moderately.high penneability 3nd would allow somc stonnwater to seep through. The
underlying sandy silt soil is of low pertneabilivy and would rch water infiltrating into
the ground. This perched groundwater may dry up co rapletcly during the dryer sunimer
months and accumulate and rise in (lit: %ket %vinter months. The depth to and the amount
of perched groundvater may fluctuate scasonally, depending on precipitation, surface
runoff', ground vegetation cover, site utilization, and other factors.
DISCUSSION AND RECOMMENDATIONS
GENERAL
Based on the likely subsurlace conditions of the su�ject residence site described above, it
is our opinion that the site is suitable lor (lie proposed development of the tim, residence
from the Peotechnical criginecring viewpoint, provided that the recommendations in this
report are fully hnplemented and observed during construction. *nic site is likely
underlain at shallow depth by glacial ly-consolidaied dense gravelh sand and hard sandy
LIU & ASSOCIATES, INC.
September 15.. 2012
ChangResidence
L&A Job No. .12-08' )
Page 7
silt soils ot'"moderately-bigh tohigh shear strength. Such competent soil should be able to
remain stable provided the recommendations. in this report arc fully implemented and
observed during construction.
Due to. the adjacent steep bluff. we, recommend grading and tbundation construction work
of the proposed new residence be carried out and completed.in the drver period ber�veen.
Aprif I and October 3 1. The site should be stabilized wi . th drainage and erosion control
measures in place beyond the above dr�ver period. If grading and foundation work is to
proceed outside of the above dryer period.. the slope stabilization, erosion mitigation and
drainage control meas . ures. recommended in this report should be in place and operational
on a daily bas* is.
GEOLOGIC HAZARDSAND MITIGATION
Landslide -Hazards
Landslides have occurred up,and down the coast of Edmonds and Mluk-ilteo. Washingion,
The s.urficial soil of Vashon till cONTering the area of the Talbot Road neighborhood,
shown on the ahove-referenced geologic map. makes the steep bluff in this area more
stable with significantly less frequ I ent known lancisdides. -17he, subJlect residence site is
underlain at shallow depth by glacitilly-corisol i dated dense gravelly sand and. hard ondy
silt soils. These competent soils have moderatcly-hig a
- h to high she, r strength and are. of
high resistance against slope Iailures. flierefore, with proper drainage and erosion
control tneasures implemented as recommended in this report,., the risk f6r deep-seated
landslides to occur on the subject residence site should be min imal.
LIU &ASSOCIATES, INC.
September 15, 2012
Chane Residence
L&A Job No. 12-083
Page 8
Erosion Hazard
The surficial fill (if any), topsoil and loose weathered soil are of low, resistance against
erosion, while the underlying glacially -consolidated dense grmel\ sand and sandy silt
soils are of moderate],%, hip-h resistance aeuinst crosion. The surficial weaker soils draping
the steep bluff can be eroded when thcy are devoid of vegetation cover and overly
saturated. Progressive soil erosion can lead to sloughing and shallow mildflow in the
surficial wcaker soils. To mitip-ate such hazard the vegetation cover outside (if
construction limits should be protceied and maintained. I fnpavcd exposcd ground
resulted froni construction activities should be re-\q,;etatekl as Soon as possible.
Concentrated stormwater should not be discharged uncontrolled within the site or onto the
steep bluff. Spoil soils and yardwaste should not be dumped.onto the steep bluff. Storrn
runoff over impervious surfacesg, such as, roofs and paved driveway. should be captured
with an underground drain line systeni tied to roof do-wrispouts and by, catch basins
aicr collected in these drain line svitem., should be
installed in the paved dri\:e%%It%,*. W,
p
) a storm sewer or into d suitable stormm-,aw disposal facility.
Ightlined to discharge intL
Seismic Hazard
The Puget Sound region �s in an active scismic 7.one. The site is underlain at shalloNv
depth by gJacially-consolidaied dense gravelly sand and hard sandy silt soils of
modcrately-high to high shear strength. "I'hese competent soils and the general lack of
static., extensive. groundwater table at shallow depth under the site should make it rather
unlikelv for such seismic ha7ards as liquefaction or soil lateral spreading 10 occur on the
site. The proposed ncN r�,sidcnc%: should. however. be designed to withstand scismic
forvcs induced by strohg earthquakes, Based on the soil condition:, cn,�:ountcrcd by the
test pits. we recommend that Seismic I ise Group I and Site Class D be used in the seismic
LIU & ASSOCIATES, INC.
September 15, 2012
Chang Residence
UA Job No. 12-09-3
Page 9
design of the proposed residences in 'A:cordan%:c with the 2009 Internatiotial Building
Code (1,K).
TEMPORARY DRAINAGE ANI) EROS] ON CONTROL
The surficial fill (1fany), topsoil and wcak weathcred soil contain a high percentage of
fines which are sensitive to -moisture and can be casity disturbed by construction traffic.
A layer of clean. .2-to-4-Inch quarry spalls should be placed over area� offirequent traffic,
such as the entrance to the silc� it--� rcquirc(l. to pro.:cct the subgradc soils from disturbance
by construction traffic.
A silt fence should be installed along the do�vnhifi sides of construction areas to minimize
transport of sediment onto neighboring properties or the steep bluff. 'Re bottom of the
C
filter cloth of the silt fences should beancluxed in a trench,filled with onsite soil.
Ditches or interceptor tretich drains ihould be installed around the consirucw',)n a-�cas, as
required, to intercept and drain away stomi runkiff and near -surface ground%,% ater.,vcpaec.
W3ter captured by such ditches or inicrceptor irench drains .5hould he ptimped into a
nearby storm inlet or dispersed tlirough perlbrated PVC spreader pipes onto �Vell-
vegetated areas ivithin the site. The spreader pipes should be sufficiently long and set
horizontal such that water flowing out offlie pipes would be at such a low velocity arid
spread over a larec area to not caust: erosion problem. The storm inlet, if into which
stormvvater is to be discharged, shoold bc covctcd -with a non -woven filicr fabric sock to
prevent sediment from entering, the storm scwcr The filter stick- -;hPuld he
cle-aned frequenti, during constnuction ii) prck-nt Aogging. and should he removed after
completion of construction,
LIU & ASSOCIATES, TNC.
September 15, 2012
Chang Residence
L&A Job No. 121-083
Page 10
Spoil soils should be hauled offol'the iiie as soon at. possible. Spoil ioil,,- and iinported
structural fill material (if any) to be stored on -,iie should be located in areas where the
ground surface -is no steeper than 201.10 grade., and should be covered with plastic tarps
securely weighted down with sandbag,,;, as required. for protection against erosion.
StTE PREPAR-ATION AND GENERAL GRADING
Vegetation within construction firnits should be cleared and grubbed. Topsoil. unsuitable
.soil in the root 7one and loose wcailicrccl soll should be eonipletely stripped within
building pad of the new residencc, and in areas sub . ject to traffic anWor Struclural load.
The e xposed soils should be compacted to a non-vielding state, as required, with it
vibratory compactor and. proof -rolled with. a piece ofheavy earthwork equipment where
possible.
EXCAVATION AND FILL SLOPES
Under no circumstance should excuvation 4opc., bc steeper than the limits spocified by
local, state and Ueral safety rcgulations i 1',-% orkers have, to perform construction N% ork in
c\cavated areah. Unsupported temporary culi greater than 4 feet in hcight should, he no
steeper than 11-1: 1 V in surficial fill (ifany.). topsoil and weathered soil and nos-teeper than
3/4H: IV in underlying dense gravelly sand and hard sandy silt soils Nvith an overall depth
of cut not to exceed 15 ficet. Pennarient cut ban"- should be no steeper than 2-1 4H: I V in
till (if nay). topsoil and weathered soil, and no steeper than 214: IV in underlying dense
gravelly sand and hard sandy sill soils� The soil units and the stability of* cut Aopes
should he observed and verified by a geotechnical engineer during excavation.
LIU & ASSOCIATES, INC.
September 15. 2012
Chang Residence
I.&A Job No. 12-083
Page I I
Permanent fill embankments required it) support structural load should be constructed
with compacted structural fill placed over proof -rolled, undisturbed, dense gravelly sand
and/or hard sandy silt soils after the unsuitable surficial soils are strippcd. Fill
embankments placed over areas steeper flian 15% grade should be structurally supported.
Sloping ground steeper that) 20% grade should be benched with vertical steps not
exceeding 4 feet tall after stripping, ol' the surficial un-,uitable soils and prior to
constructing pernianent fill enibanknicni. The slope ot' perniancrit fill embankments
should be no steeper than 2-14K.IV, Upon completion. the sloping face of permanent
fill embankments should be thoroughly compacted Loa non-vielding state with a hoe -
pa&
'Me above recom.mende . d cut and fill slopes are wider the assumption that, groundwater
seepage would not be encountered during construction. If groundwater is encountered.
the construction work should be immediately hatted and die slope stability re-evaluated.
The slopes may have to be flattened and other measures taken to stabilize the slopes.
Stormwater should not be allowed to flow uncontrolled over cut and rill slopes.
Pennanent cut slopes or fill embankments should be seeded and vegetated as soon as
possible for erosion protection and long-term stability. and should be covered with clear
plastic sheets, as required, to protect them from -erosion until the vegetation is fully
established.
STRUCTURAL FILL
Structural fill is th� fill -that supports structural or traffic load. Structural fill should
consist of clean granular soils frec ol* organic and other deleterious substances and ANith
particles not larger than three inches. Structural fill should have a moisture content
LIU & ASSOCIATES, INC.
Scptember 15, 2012
Chang Residence
L&A Job No. 12-08' )
Page 12
within one percen.t of its optimum moisture content at the time of placement. The
optimum moisture content is the water content in the. soils that en�jble the soils to be
compacted to tile highest dry density fora given compaction effort.
'17he onsite gravelly sand soil niecting the abovc requirements may be used as structural
fill. Imported matefial to be used as stnictural fill should be c1can, free -draining. gmnular
soils contain�igrto more than 5 per,�enl by .�6ght fi,ncr flian the No. 200 sieve based oil
the fraction oftht: material passinig No� 4 and ihould ha-ve individual particles not
larger than [bur.inches.
!1e ground Liver which structural fill is to be placed should be prepared in accordance
with recommendations in the SITE lTj,-iPA RATION AND GENERAL GRADING and
E AVATION AND FILL SLOPES smions of this re . port, 'Structural fill should be
constructed 'in lifts no more than 10 inches thick in its looSe state, with each lift
compacted to a minimum percentage of the maximum dry density determined by AST"M
D 15 5 7 (Modi fied Prottor Method) as ('61lows:
Application
Within building pads md under foundations
Roadwav/drive-vN.-aV subgrade
Retaining wall backfill
Utility trench back -fill
01
,0 of.Maximurn Dry Densitv
9 5 IX)
95'�"O for top 3 feet and 90% below
92%
950� 1'or top 4 feet and 900,,'0 below
LIU & ASSOCIATES, INC.
Scptcinber 1-51, 2012
Chane. Residence
L&A Job No. 12-09' )
Pave 13
Z
*1 - he in -situ density of structural fill should be tested with a nuclear densomcter by a
geotechnical technician from a ccrtifted icsting agency. The frequenc\, of' density tests
should be one per no more than 250 square fleet of fill areas per lifl.
BUILDING SETBACK
The purpose of building setback from the top or toe or an overly steep portion of a slope
is to establish a safe.. buffer such that if a slope failure should occur on the slope. the
stability of the structure can be maintained and damages to the structure minimized.
Factors affecting required setback of' building from the crest of' adjacent steep slope
include- geological constraints (such as soil and hydrological conditions) of the site,
hazard from development to subject property and surrounding properties/right-of-ways.
impact of constmction method and technique on critical areas. mitigation of im acts on
P
critical areas, iiytpact of utility installation and roadway construction on geologically
hazardous areas. etc. It should be understood that there will be risk involved in
development adjacent to steep sloped areas.. such as the steep bluff of the subject
The risk can be mitigated to a reasonable level with adequate and proper
property.
geotechnical engineering and construction practicei per reconunendations in this report.
1-he glacially -consolidated dense gravelly -sand and hard sandy silt soils possess
mod crate lv-h.i gh. to high shear strcngth and are of high, resistance against slope failures.
Therefore, it is our opinion that the new residence should be able to remain stable if its
foundations are set backat least 35 feel firQrn the top of the blurf.
LIU & ASSOCIATES, INC.
September 15, 7012
Chane Residence
L&A Job No. 12-083
Page 1.4
BUILDING FOUNDATIONS
Conventional footing foundations may be used to support the pro osed new residence.
p
The footing foundations should be constructed on or into the underlying glaLially
consolidated. undisturbed, dense gravelly sand and/or hard sandy silt Soil. Water should
not be allowed to accumulate in excavaicd 60otine trenches. Di�;(tjrhcd soils in footing
trenches should be cornplet.ely remo%cd do%%n to undisrurbed, firill, nalivc ;-oils prior to
pouring concrete for the footings�
If the above rccoturnendat ions are impleawnted and observed, our recommended &si
gn
criteria for ft)oting foundations are as follovvs:
a Tlit! allowabic soil beafing pre'iSUre for desivn of fooling l'oundations. includino-
dead and li,,e loads, should he no gpcatcr than 3,000 psf if co0structed on or into
the underl-ving competent native soil as described above, and not Vxceed 2.5,00 psf
constructed on structural fill built on these competent b'&�al soiL The footing
bearins! soil should be vcrified onsitc by a geotechnical engincer after the footing
trenches are excavated and before dic footings potired.
The minimum depth to bottom ofperimeter footings below adjacent final exterior
gradc should be no less than 18 inches. The minimum depth to bottorn of the
interior footings belovv top of floor slab should be no less than. I _1 i nches.
The minimum width should be no less than 1.6 inches 11)r continuous tootings, and
no less than 24 inches for individual footings, except those footilig:i supporting
lipht-wcight decks or porches.
A one-third increase. in the abovc rccommended allowable sol.] bearine preisurc may be
used '-dien considerin2 short-term. transitory-1, wind or seismic loads, For footing
LTU & ASSOCIATES,.INC.
September 115,2012
Chang Residence
L&A Job'No. 12-083
Page, 15
foundations designed and con-strUCted per recorruncridations above, we estiniate that the
maximurn total post -construction settleincrit ofthe building should be 3/4 inch or less and
the differential settlement across building width should he 1/2 inch or
Lateral loads, on the proposed rcsidca,,x inaY be resisted by the friction force het\keen the
foundations and the sub�,jadc,;,.)ils or dw- pa,-,si%;: earth pressure acting on the, below -grade
portion of the foundations. l'or the lijuer. the foundations must be poured "neat" against
undisturbed soils or backfilled witl) a clean. free -draining, conipacied stnictural fill, We
recomnicrid that an equivalent fluid density (hFD) of 300 pcf (,pounds per cubic loot) for
the passive earth pressure be used Im latcral resistance. The above passive pressure
assumes that the backfill is level or inclines upward away from the foundations for a
horizontal distance at least 1.5 times the depth of the foundations. below the final gradc.
A coefficient of ffiction of 0.55 bctweca the foundations and the subgradc Wils may be
usvd. The above recommendcd -wil paraincicr, are unfactored values. tind a proper fictor
of safety should he used in calculatini,, the resisune forces avainst lateral loads Lin the
proposed residence.
SLAB -ON -GRADE FLOORS
Slab -on -grade floors, if used for the new residence, should bc placed on firni subgrade
soils prepared as outlined 'in the SITE PREPAILATION -AND GENFRAL
EARTITWORK and the STRUCTuRM.. FIT.T. sections of this report. Where moisture
control is critical., the slab-on-arade floors should be placed on a capillary break which is
in turn placed on the compacted -,ubgrade, The capiflary break should corisist, of a
minimum four- i nch-th ick laNer of clean. free-drainin- 7/8-inch crushed rock, containing
no tnorc than percent bN weight passing ilic No. 4 sieve. A vapor barrier,. uch as a 6-
LIU & ASSOCIATES, INC.
September 15, 2012
Changlkesidencc
L&A Joh No. 12-09' )
Page 16'"
mil plastic nienihrane. ma-, be plixed o%cr file capillary brcak, its, required, it) kecp
moisture fro'm niiLmifiwL, it var&.
- T1
DRIVEWAY PAVFMENT
Perl'ofrRance of drive" ay pavement i-; critically rclawd to th%: conditions of (lie underlying
subgrade soil, We rci:oinniend diat the dri-vc�%a� subgrade soil be treated and prepared as
described in the SITI - PREPAR-Al 10N ,NNI) GENERAL EAR F! IWORK �,eclion of this
rcport. Pfior to placinc bahe material. th�: ubLride soil �,houl(l bc compaCted to a non-
vielding state with a mechanical �omlmctor and proof-roll%:d �%ith a pic%:e of licaN-N
construction cquipmcm, sucli as it fullv-loadcd dunip truck. An\ jre�ts %0h cxce,;sive
flexing or purnping should be over-excavaled and re-compactcd or repliced Nvith
compacted .5tructural fill or cru,-,hed rock pA:r rccommendations provided in the
STRUC seoion of thi� r,�port-
We reconinwnd that a 1,1%.-r of compaetcd, - 8-Inch crushed rock h:isc iCRB)1. be pliced
jw-er the compacted drivv\%iiy subpjadc, soil. Thi,, cnishcd I-OLk hXSC should he at le.tat 4
inch'es thick. The cruslied roc.k base shoulld tic topped with a 4-inch Cla.11s B asph.-Iff,
Concrete (AC) surficial course.
STORMWATER DISPOSAL
Stormwater collectA o-L, er iniper\ ioui -,urf.icvs,. sm:h Js root, ind pw-cd dri-,-cx%-a,-. shOUld
be safcly d1spo-;ed without Inipacling (lie stabilit% of file stcep b1tiff Options of
stommater disposal arc diScussed as follow�:
The preferred option is to dischargQ siornmatcr throuLh ti,-d to an
I I-
cxistinp- stomidrain firic. The CN iSfill 0 storm drain' line serx ino t lie cx 1, 1 inur re-�idencc on
LIU & ASSOCIATES, INC.
Septernbcr 15,201.2.
Chang Residence
L&A Job No. 121-093
Pau 17
site, If therc ii� one, can be wilizcd to �:ollectcd -,1onM-%M4:r. Otherxi-i-se. collected
stormwawr may be discharged via a tiefithric into the neighbor',s 5torrn drdin lifiv if a
,A-ntien pennission can be sectired fron) the jicighhor�
The second op(ion would he to d1sper:,c coflv,�tcd storrvi��atcr through a Npreader pipe
installed along each o-' dic side 1'ring ' thv h Thv -�prcader pipe sNstcnis
--cs ol ack %ard.
should bc constructed of 4-invb-diaineterl, rigid, p�:rl'orated. PVC pipcs, set le%el al about
2 to 3 fcn above the around stirfaCe OWT %� el I-% c��wxcd arra-, Nuch a.,- the
back yard. The spreader pipcs should hj%,: flicir ends cappcd .-ind supporwd on and
anchored to 2-inch-diaineter, NLhedulc 90 1,21,3*7�-inch outNide dianicter b\, 0.218-inch
mall), galvanized: steel pipe piles, spaced at no inorc than 9 Fcct oti centers. dri\ cn at least
5 feet into die ground- as Shown on Plate Col lecled stormwater i� io be fighifinctl to the
spreadej, pipe s%sterns it) di,;per-,e x%aicr vvcr lar2C XCIS mithout creating erosion.
probleni. Water discharged through the sprQader pip;- sy,-teni,,; -�L\, ill nio�,tly be eva orated
P
into the ambience and absorbcd by root s� stern of vegetation co% cr. m-ith a sniall fraction
infiltrating into the v . und, "llic K:ngih of cach spi-tider pipe wni thould he calctilaied
,ro
based on onv lineal fk-A)t ol'pip,: p-1-r cvcry 40 feel of inij)crvioki,,n, arca scr\ ed.
The, third option. would to inst.ill a spreader pip�: ;ymcni over dri flm, m-c-11-vegutated area
at the ba:-�z of die bluff. Collected -,tornii�atcr m-oWd be dispo.sed via a lonp- tiehiline
runnine all the N\a\, domn thc bluff to tic into thiz-1 _Nprcaklior pipc systern. The fightlinc
should he anchored to the fice ot'thc blut'l �� ith �,icel pipe pilk:., described above with the
spacing of the piles no niore than 25 feet.
LJU & ASSOCIATES, INC.
September 15, 2012
Ch ang Residence
UA Job No. 12-08' )
Page 18
DRAINAGE CONTROL
Building Footprint Excavation
Building f6otprint excavation for the, ne�v residence, if encountering groundwater
seepage, should have the honorn ofexcavation sloped and a diTch excavated along the
ba-sc, ol'cut banks to intercept anti diroci collected groundwaier into sump pits 11rorn which.
t)f ",_jtjClj
wawr can he pumped out. A layer cru�.hed rock shOUld hc placed o%er footing
_e ,,ub rade solls.. as rquired, to proteo the -,Llils from disturb.-ince b%, conAruction
(raffic. This crushed ruck base 0iould be built to a few inches above groundwater level,
but not less. than 6 inches thick, The crush rock base should be compacted in 12-inch. lifts
to a non -yielding state with a vibratory mechanical compactor.
Building Footing Drain
A subdrain sNsteni should he instalict I tiound thc'perimeter Cootm,-,5 offlie new residence.
flic subdrain should consist of a 4-iiici)-iiiiiiiiiiuni-d.itimeter, perforated., rigid. drain pipes".
laid a f
68f inches below bottom of tile perimeter lbotings of the building. 'Me trench and
the drain line should havc a sufficient gradient (0.5% mi-nimum) it) ocnerate -floNv bN,*
giavity, The drain line should be wrapped in a non-\�ovcn filter f3bric sock and
completely enclosed in clean vvashcd gravel. The remaining trench may be backfilled
with clean. onsitc ioil. Water collccled by the picrimeter footing subdrain system should
be lightlined'.. separately from the rool'and surface storinwater drain lines., to discharge
into a storni sewer or a suitable stomikvater disposal facility, Such a:s infil(ration trenches.
Surface Drainage
Water should not be allowed to stand in any areas where footings. on-gradc-slabs. or
pavement is to he constructed. Flnish ground ;urfaces should he gridcd to direct surface
UU & ASSOCIATES, INC.
Sepiember.15, 2012
Chang Residence
.L&A Job No. 12-0831
Page 19
runoff away 1rom the proposed rcsidence. We recommend the finished ground bc sloped
at a gradient of 3 perecrit inininium for a distan.cc of at least 10 flcet dv'!a'� from the
buildings, except in the areas to be pavcd,
cles"Outs
Sufficient number of cleanouis at strategic locations should be provided for underground
drain lines. 17he underground drain lincs should he cleaned and nmintained periodically
to prevent clo—Ing.
=1i
RISK EVALUATION STATEMENT
The subject site is underlain at shallow depth by glacially -consolidated dense gravelly
sand and hard sandy silt soils. Tbese basal soils are of moderate ly-h igh to high shear
strength and the site; should be 4uite stable. Proper and adequate erosion mitiggation and
surfacc and groundwater druinaggc control are keys to maintainine site stabilit-v durine and
after completion of construction. It Is our opinion (bit if the recommendations in this
report are fully implcmcrackl and obscr-,cd during construction and f*ollo,�ving the
completion of construction. the arc�Ls di.qUrbed will be:able to remain stable, and �� ill not
increase the potential for soil movenictit, fn.our opinion., the nisk for damages to the
proposed development and 6om the development to adjacent properties from soil
instability should be minimal.
LIMITATIONS
This report bits been prepared for the spctific application to this project for the exclusive
use by Dr. Chang and his associates... reproientatives. consul tail ts and contractors. We
LIIJ & ASSOCIATES, INC.
September 15, 2012
Chang Residence
I...&A Job No. 12-083
Page,20
recommend that Uii,, report, in its entirei�,,, be included in the pro do'Lunlents
jeci contraLt
for the informaiion of' the prospective eontractors tor thcir cs(inw(ing and bidding
purpose,; and for complian%:e .�ith the r�:,�-%ijmwndauons in thi., rcport during, construction,
The conclusions land interpretations in lhi�, rqort, however. -,hould not be construed as a
warranty of thc SLIKSUrIaLe conditionN. Thc scope. ot'thls sttid�, docs not include serviLCS
related to con.struction si&ty precaution,� mid our rcconwicildation.s 'Irc not intcrided to
dircct the contrictor', methods, sequencc,, or procedures.. except as
specificall, dccribed in this repon for Jcsign considerationiz. The geolechnical
construction of the --,ubject prqject should he monitorcd and in�,reitcd bx- a ueote�,;hnical
engineer.
Our recommendations and conclu�,ion� are ha,�ed on the geolooii,: and soil conditions
4um,-n on Lhe abo,-C-refercm:cd geoloei,� nmp and Lm,�ountercd K� the tes-t pit.-; excnx-.1ted
on the Refcrencc SItc. and our e\pericnc%: Mid ent-ineerinz iudunicni. The conclusions
and recommendationi tare pri-)fessionzil opinion-; deri-%Cd in a matincr �onsistent -,Nith the
level ofcare and skill ordinarily exercised by other niember�, of the profiession currently
practichip undti, similar conditions in thi,� arva. No warranik. c\pr%:..sScd or implied. is
made.
The actual sub-surf4cc conditions of thc,,itc niav var-v from tho-�e d,�,,:rlhcd in this report.
The nature and extent ofsuch variations ;wy not hcconie e%ident until construction starts.
If variations appear then, we should be retained to re-cYaluate the rcA:ommendations of
this report. and 14) vvrif� or niodify thi�m in \--rlting prior to proccc(ling further with the
construction oftlic proposed development.
L I 11, & A IsOls(11C 1. A T F IS, I N C
September 15, 2012
Chane Residence
L&A Job No. 12-083
Page-2 I
CLOSURE
We are I
'pleased to be of ser�icc to you on this project. Please Feel free to Contact us if you
have any questions Ire k ��%.
garding this rupoh or f-unbc- conswItafion.
Three plates attached
Yours vm, truly,,
Llu &AS.SOCIATFS. INC.
J. S. (Julian) Liu. Ph.D.. P.E.
Consulting Geotechnicil F.neincer
ul " It" �p
LIU & ASSOCIATES, INC.
PROJECT
SITE
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VICINITY MAP
LJU &ASSOCIATES, INC. CHANG RESIDENCE
17134 TALBOT ROAD
Geotechnical EngineeNng, Engineedng Geology - Earn Science EDMONDS, WASHINGTON
1 JOB NO. 12-083 EDATE 9/12120=LATE
C�l
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0
0
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(In 0
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I/
LIU & ASSOCIATES. INC.
PROPERTY SURVEY AND SITE PLAN
CHANG RESIDENCE
17134 TALBOT ROAD
MMONW WASHINGTON
14
*re>
�-L- 6AELFi-
'J� L
boi.
p1pa (0 MAY-
STORMWATER SPREADER PIPE SYSTEM
LIU & ASSOCIATES. INC. CHANG RESIDENCE
17134 TALBOT ROAD
Geotechnical Engine-efing - Engine . efing Geology - Earth &�ence EDMONDS, WASHINGTON
JOB NO. 12a8_� DATE 9/12 01=2 PLATE
I
I
Im
0
0
3:)
C�
0
�7
z
0
T_
M
50'
50
IMPERVIOUS SURFACE CALCULATIONS:
RESIDENCE FOOTPRI.\ Mitl W 6, 1552 SF
i COVERED ENTRY
60 SF
DECK
102 SF
PATIOS, WALKWAYS, DRIVEWAYS
870 SF
GARAGE
672 SF
ae"-ff-
TOTAL IMPERVIOUS
LOT AREA
16422 SF
LOT COVERAGE
-*M
_D
30
ELEVATION CALCULATIONS:
STRUCTURAL LOT COVERAGE C
RESIDENCE-Reetf-OUTLINE
COVERED ENTRY
DECK
12 g J'Q�.
DRWZA"*
GARAGEiRI58 OUTLINE
TOTAL COVERAGE
LOT AREA
LOT COVERAGE
NOTE: I
REFER TO GEOTECHNICAL ANALYSIS
FOR SOIL MANAGEMENT AND
GRADING INFORMATION.
CREST Or bLUrr/ I Or OF SLOPE
20'BUFFER FROM CREST OF BLUFF
ISSETBACK FROM BUFFER
101-al
J
PROPERTY LINE 195.00'
W—
N -R.
8' 22'56
TO HOUSE
37--ld'112"
'OH I a Setback
aL__ Ot-1 i-EUK H �935L ------
C'�
TO PATIO
6"
:11101 21
To SETBACK
35,-6,...
ESI E ::E/ GA0,G
G 7�.61 F [100.51
PATIO
[96.21 10'Setback
ft — I I
[J.71 t i I AT[ 100.01
N 1 V7' 53'10- W-R.1 . ..I PROPERTY LINE 205.00'�
101
0
M
PATIO TO ENCROACH
-1
0 ("
>
INTO SETBACK 3'
(< 1/3 SETBACK)
NOT TO EXCEED 3G'
HEIGHT ABOVE FIN
GRADE
50'_
Site Plan
:ULATIONS:
5-5'2, 4�1`
60 SF
102 SF
W-9 6F
C77- -8,tVSF
4949 SF
16422 SF
(103.31
LU
z
_J
b
LU
CL
0
Lo 0
Ckf
CL
7r%ni- Corner Flag_�L
Setbacks h
e�]Rkeauired
al 4e
W-Actu I
RESIDENCE ELEVATION CALCULATIONS:
Er4mtlf
10
-to' 10
A BENCHMARK@ CATCH BASIN 100.0'
SWes 5
to
_(0
FIELD VERIFY FOR ELEVATION CONTROL (NOT
TO EXCEED 25FROM AVERAGE GRADE)
(0 /0-r 13 ct
B SE CORNE\R@ 96.2'
(0
AVERAGE NATURAL GRADE:
HeiWt
2S
fS7 — 14-5
C SW CORNER @ 90J" 93.8'
\ I ACTUAL HEIGHT OF SFR:
6a
1201wlqo— sl;e
D NW CORNER @ 91ff 118.3'
MAX ALLOWABLE HEIGHT.
I
30'
30'
9LD
TO 1011 -
E NE CORNER @ 97.1' 118.9
�
CONCRETE
EXISTING DRIVEWAY
FOOTPRINT
(DASHED)
RESIDENCE FOOTING ELEVATION 91.2'
RESIDENCE FINISHED FIRST FLOOR ELV. 100.9-
GARAGE FOOTING E['EVATION 10 1.4'
\ Scale: I" = 50' 0 10
GARAGE FINISHED FIRST FLOOR ELV. 102.9'
GARAGE ELEVATION CALCULATIOlkiS: �?ZPRQY
;I
F NE CORNER @ 100.5'
G SW CORNER @ 97.6'
H NW CORNER@ 98.5'
I NE CORNER @ 101.2'
AVERAGE NATURALGRADE:
99.51
ACTUAL HEIGHT OF GARAGE:
111.3'
MAXALLOWABLE HEIGHT:
114.5'
PARCEL B
10' ROAD, WATER LINE
AND POWER EASEMENT
10.4.
�,110'DRIVEWAY AND
UTILITY EASEMENT
AF# 201208280429
Project Info:
17134 T albot- Road
Edmonds, Washington 98026-5051
27040700104300
Lots 2 & 3 - Sct 7, Twn 27 N, Ra 04 E
71r3�
APPF 0 :1�"EERIING
0
Date:.
0
CA V I r- 0 W_
,30' 30'
LLJ
p 0
C/� U)
0
r
't It-
Q6 Ln
In
N
Site Plan
A1.0
addendum
JUN 03 201.3
ILDIN(3 DEPAR"AilE
�b Lo 1,0 1�- 0 (Of I. `b 0401CITY OF EDMONDS