18731 78TH PL W.PDFlill 11111111
6740
18731 78TH PL W
ADDRESS: 116;;73,1 - 79,",42, 461
TAX ACCOUNT/PARCEL NUMBER: 00 5-177 IV
BUILDING PERMIT (NEW STRUCTURE):
COVENANTS (RECORDED)
CRITICAL AREAS: 42!�-7- �16- DETERMINATION: 0 Conditional Waiver j&Study Required 0 Waiver
DISCRETIONARY PERMIT #'S: V. � 1 -(08
DRAINAGE PLAN DATED:
PARKING AGREEMENTS DATED:
EASEMENT(S) RECORDED
PERMITS /
PLANNING DATA CHECKLIST DATED:
SCALED PLOT PLAN DATED:
SEWER LID FEE $: LID #:
SHORT PLAT FILE: LOT: BLOCK: Mz�ujc,4�
SIDE SEWER AS BUILT DATED: -
SIDE SEWER PERMIT(S) #:
GEOTECH REPORT DATED:A�,)(A
STREET USE / ENCROACHMENT PERMIT #:
FOR:
WATER METER TAP CARD DA
OTHER:
LATEMP\DS'Ps\Fonns\Street File Checklist.doc
OLV'pjf(r(A�f CUA tjOt
Go M t-tr' i -f :1, -
#P20
TMVIIL CA File No:
Critical Areas Checklist
Site Information (soils/,t6' o
T
1. Site Address/ Location: t�
2.
* 3.
4.
,-raphy/ hydrology/ vegetation)
131 11K +�A P L_ UD
Property Tax Account Number: 00 G('1-7 00b 0C)s cyo
Approximate Site Size (acres or square feet): o -,�, a cxc,�;, 5 yi o C-o cks,4cso�, 0 Y*
Is this site currently developed? yes; — no.
If yes; how is site developed? 6YI 0 a�'6cly"'rq 0't
5. Describe the general site topography. Check all that apply.
Flat less than 5-feet elevation'change over entire site.
Rolling: slopes on site generally less than 15% (a vertical. rise of 10-feet -over a horizontal
distance of 66-feet).
Hilly: slopes present on site of -more thadM'aM less� thki 30% '(a vertical rise' of 10-feet
over. a horizontal distance of 33 to 66-feet)-
Steep: grades of greater than 30% present on site (a vertical rise of 10-feet over a horizontal
distance of less than 33-feet).
Other (please describe):
6. Site contains areas of year-round standing water: Approx. Depth:.
7. Site contains areas of seasonal standing water: —;Approx.Depth:
What season(s) of the year?
8. Site is in the floodway floodplain of a water course.
9. Site contains a creek or an area where water flows across the grounds surface? Flows are year-round?
Flows are seasonal? — (What time of year?
10. Site is primarily: forested meadow ;shrubs mixed
urban Landscaped (lawn, shrubs etc)
11. Obvious wetland is present on site:
For City Staff Use Only
1. Plan Check Number, if applicable7
2. Site is Zoned? PL
3. SCS mapped soil type(s)? 4 A kdovvvood- "4r-,y?,i* ArOLY611 5andy 104M6 Tp'/- Sl 0 F-C-- 5
4 Critical.Areas invent�ry or C.A. map indicates Critical Area on. site?.. I-Ovi ttj-jav'd Ayta"--
a de u,.-vjt +v I a nd6li'At Kawrd - areo- " M nfw (,A- m
5. Site within designated earth subsidence landslide hazard area?
DETERMINATION.
STUDY REQUIRED WAIVER
Reviewed by- 111 A/14U Date: 0 5 1 �b 1/0 Q
#P20
0
City of Edmonds
Development Services Department
Planning Division
Phone: 425.771.0220
Fax: 425.771.0221
Ile 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 the application 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).
Date Received:
CityReceipt#:.
Critical Areas File#: GA U06-0(pg
Critical Areas Checklist Fee: $135.00
Date Mailed to Applicant:
A property owner, or his/her authorized representative,
must fill out the checklist, sign and date it, and submit it
to the City. Th�'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 this 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 assistant staff
in completing their prelinuinary assessment of the site.
The undersigned applican� and his/her/its heirs, and assigns, in consideration on the processing of the application agrees
to release, indemnify, defend and hold the City of Edmonds harmless from any and all damages, including reasonable
attorney's fees, arising from any action or infraction based in whole or part upon false, misleading, inaccurate or
incomplete information furnished by the applicant, histher/its agents or employees.
By my signature, I certify that the info on and exhib ts with submitted are true and correct to the best of my
knowledge andthat I am authorized to fi s application behalf of the owner as listed below.
SIGNATURE OF APPLicANT/AGENT X-S Ze
Property Owner's Ant horizat(/on
By my.signature, I cer* that I havCa)udionzed the above ApplicantlAgent to apply for the subject land use application,
and grant my permission for th
,p,puW(c officials and the staff of the City of Edmonds to enter the subject property for the
purposes of inspectiom4nd p0tirtg- attendant tp, this application.
SIGNATURE OF OWNER Z'o WON&
Owner/AppHcant:
Name
7 3/
Speet Ad�lress
city State Zip
xA plicant Representative:
Name
Str t Addre s
tA14--
City .. State zip
L?U E-- 6 / /n C?2-
Telephone: Telephone: Zoe�, - 9.Z 7
Email address (optional): /on 6�:� Email Address (optional):
(Ijel -�rn.A�xcz)
ac-,C*rsor-(�p P*kxv-
- i *CITY OF EDMONDS 0
CRITICAL AREAS RECONNAISSANCE REPORT
Site Location: 18731 78th Place West Tax Acct. Number: 00 5177 000 008 00
Determination: Study Required Determination #: CA-2005-065
Applicant: Andrew Anderson Owner: Doug and Freeda Babson
CRITICAL AREAS RECONNAISSANCE REPORT: STUDY REQUIRED (CA-2005-065)
During review and inspection of the subject site on May 13"', 2005, it was found that the site may contain
critical areas, including Geologically Hazardous areas pursuant to Chapter 23.40 of the Edmonds
Community Development Code (ECDC). The portion of the site where the potential critical areas were
observed is the eastern portion of the lot (backyard).
GENERAL CRITICAL AREAS REPORT REQUIREMENTS
Critical Areas Reports identify, classify and delineate any areas on or adjacent to the subject property that
may qualify as critical areas. They also assess these areas and identify any potential impacts resulting
from your specific development proposal. If a specific development proposal results in an alteration to a
critical area the critical areas report will also contain a mitigation plan. You have the option of completing
the portion of the study that classifies and delineates the critical areas and waiting until you have a specific
development proposal to complete the study. You may also choose submit the entire study with your
specific development application.
Please review the minimum report requirements for all types of Critical Areas which are listed in
ECDC 23.40.090.D. There are additional report requirements for different types of critical areas
(see below).
Note that it is important for the report to be prepared by a qualified professional as defined in the
ordinance. There are options on how to complete a critical areas study and an approved list of
consultants that you may choose from. You may contact the Planning Division for more
information.
General Mitigation Requirements for all Critical Areas are discussed in ECDC 23.40.110 through
23.40.140.
STUDY REQUIREMENT — LANDSLIDE HAZARD AREA ,
It appears that this property contains or is adjacent to a Landslide Hazard Area.
Any area with a slope of forty percent (40%) or steeper and with a vertical relief of ten (10) or
more feet (except areas composed of consolidated bedrock).
Landslide Hazard Areas are further defined and illustrated in (ECDC 23.80.020.B.).
In addition to the general requirements for Critical Areas reports referenced above, specific
Critical Area report requirements for Landslide Hazard Areas are provided in ECDC 23.80.050.
DEVELOPMENT PROPOSALS ASSOCIATED WITH LANDSLIDE HAZARD AREAS
Development is restricted within a Landslide Hazard Area and its buffer.
• Projects that will intrude into these areas will require a report by a licensed Geotechnical
Engineer.
• The applicant may request a modification to the required contents of the critical area report per
ECDC 23.40.lbO.B, where, in the judgment of a qualified professional, more or less information is
required to adequately address the potential critical area impacts.
• The criteria that are applied depend on the amount that the buffer is reduced.
• The buffer can be reduced to a minimum of ten (10) feet (with an additional 15' building setback
per ECDC 23.40.280) if a report is prepared that meets -the standards listed in (23.80.050). The
alteration must also meet the requirements listed 23.80.060.
• In addition, proposals to reduce the buffer to less than ten (10) feet must comply with the design
standards listed in 23.80.070.A.3.
0 11 0
ALLOWED ACTIVITIES
Certain activities are allowed in or near critical area buffers as specified in ECDC 23.40.220. If you have
any questions about whether your proposed development qualifies as an allowed activity, please contact a
Planner for more information.
EXEMPT DEVELOPMENT PROPOSALS
Certain development proposals may be exempt from Critical Areas Requirements (ECDC 23.40.230). If
you think that a specific development proposal may be exempt, contact a Planner for more information.
Name, Title -( ) Signature .
Date
NOTE: Cited sections of the Edmonds Community Development Code (ECDC) can be found on the City
of Edmonds website at www.ci.edmonds.wa.us.
2
Ell
co
8o
0)
9.26'
An
39.95, -
/ 40'R
129.90' / N Od 29 2TE
8.95'
7.42'
Feburary 8, 2013
Site Plan for Remodel Plans
RECEIVED
FEB 0 8 2013
DEVELOPMENT SERVICES
COUNTER
STREET FILE
Site: 18731 78th PL W, Edmonds, WA 98026
Owner: Leslie McGuire
7626 87th Ave NE, Marysville, WA 98270
425-330-0244 Leslie's Cell
Email: LESLIE.MCGU IRE@COMCAST. NET
Site Plan Scale: 1.1 = 20'
'gl,
rTI
Q' fMJkIIANG�AD1)RES8
I Pll"i4l
I ,
NM
L A.IWAt
:'USE-Zor�E
io
T"!,f l'i
PHONE
NUMBER.
HE . IGHT�- R EA,;
V
o r7 PLOT, PLAN APPROVED�1j'I't';i1i
11,M:
ISM fwl 13
STREET
M)USTING. STRE
i IN it
.�.COMP.-'PLA ST.*'R�Wg—
IR: .931,11i;!P0. 4,
' "+' ;;" " '
iiiii<,,ated-6n,Stan'dat�d,�Dra""
j
"'i'k .4 -
CHECKMD BY
(Bry"M
UMBER
a
k
C1 METER SIZE SEXVIC I E 41
C�7i 'tit rktm
STATE,LICEIIIBP 1, i -,.:: - : - "'! � " T
o�; 0,
REMAR XS
)IIAMI>escripttoa:oflPmpe�ty..(Sbow!13elow or Attach.Four Cople').,.,I,
'VEM
P�
;7
J
PILRC.,TEST
;11\ j1p.11!
R17, "t 'I , IM
K., 1`1`1
lFIRE ZONE, XPEiCF,CONSTRUCTION,� TREETJ1MPROy&D, !It
th
L
L._1%INSPE 1�,REQU occulp NCT-GROUP J1
SPEC
GASiii,
I�L�D �!O: � I "I I k , �, I m
U L
1',
P AN CHECKEDHY, 0 A
S1 N AL
L
(Qt
REMAIU0
�%v
r
EX AIATEi,,
!T
,v P.EP R,!
,,, :i.� "'' (" � �,�l I
'Ij� 40 iL .`I-
.4:j
;XNSP
;NUMBER,01� U U
STORIES U. V
2 1
N AJ:
NATUREtO )� �,., , : ! , .11 , .1 1 '.
ly
rt.. cbeck N . ....... .... .....
5 N
PROPOSED USE.
BUILDING
1. k
"Ing "t7'!.) PLUMBING
PLOT. PLAN, (IndleatO Building Setbac". ab�),
0 TrEAT & GAS LINE
FENCE
It i "T
�'RICTAINING,,
7ALL
V,
SWIM
;
k; MING POOL
EzeOLMOX. �111
8� N"
'D
01 .4 -1
PRF-tJOVE'![ _�,,E'
EXC :t t,,,' N
AVATIG R Fli�,
WNTOTAL ANIOU'VT DUE
I:
I
V'r
. .... �e ack"'awteagle thai I I�ave read this application; that the in-
1707atlon��rlven is correct: and that I am the owner, or the duly author-
�ilzcd agent'of the owner. I agree to comply with city and late laws reru-
ATTENTION APPLICATION APPROVAL,,'
lating construction: and in doing the work authorl"d thereby, no person
will be employed In violation of the Labor Code of the State of Weughington PE1131IT
This application Is not a permit until
'ralating to Workmen's Compensation Iruiurance. AUTI1OnIZFS
ONLY TIM signed by the Building Official or his Dep-
NOTE: Permit Limit One Year (Except 1,0AOLITIONS which WORK INOTED uty; and fees are paid, and receipt is ac-
shall be completed in ninety days: INIOVED-1214 BUILDINGS aha%l be com- knowledged in space provided.
pitted in six months.)
SIGNATURE (OWNER Oft AGENT) DATL SIONED INSPECTION DIRECTOR' S.,SIGNATUR
..IA-T.I.-T
C,
CITY OF DATE
NOTE: Applicant Subject to Plan Cbeclz Fee rID31ONDS
PR 6-1107
This 1"—It -Vl- ,k to be done .. prll.t,. pr.t.!,ty ONLY.
Any .. Wuctl.a -- the publi. domain 1111-1141,
n—que-, ete.) will require ept� Per INSPECTOR.
APPLICATION LYM PLAMT
STREET FILE for
The City of Edmonds SIDE SEWER PERYaT EASEMENT No . ..........................................
NEW CONSTRUCTION REPAIRS E]
OV*rNER, ... <::�2 . ......... ...........................
ADDRESS ... --- — ------ ................
,,I*
46
I*
CONTRACTOR PERMIT No. -
LEGAL DESCRIPTION: LOT No . ................ -IRI ....................... BLOCK No . ............................................
NAME OF ADDITION ........... ................ . ...........................
APPROVED
JAN 9 19W
P01.4.1 ...... ... I
1�7 -------------------------
NOTICE:
No warranty of accuracy.
The information shown on the attached
map(s) was compiled for use by the City of
Edmonds, its Employees and Consultants.
The City of Edmonds does not warrant the
accuracy of anything set for ' th on these
map(s). Any person or entity-reque sting a
copy should conduct an independent
inquiry regarding the information shown on
the -map(s), including, but not limited to,
the location of any sewer stub shown. Such
sewer stubs may or may not exist and may
or may not exist at the location shown.
Neither the City of Edmonds nor its
employees or officerS *-)hall be liabl-e for the
information given on this map(s), nor for -
any one representation provided based
upon said map(s).
-CITY OF EDMONDS
Call PRospoet 6-1107 when work
CIVIC CENTER — WATER —SEWER DEPARTMENT is ready for Inspection. (No Inspec-
SIDESEWER PERMIT tions Saturday, Sunday or holidays.) N2 3215
ADDRESS -------------------- 2B7.31_r,-.__78.th._P1ace West ................................................................................................
O'V17NER _---_----------------- Charle.s --- H.ans.e.n ................................ CONTRACTOR .... North End Sep.14!�.. Tank
....... ....... .. .. ....... .. .. ....................... . ........ ..............................
Permission is granted ------------------ January --- 9 .... 10�9_ for ........................ days to REPAIR or CONNECT a side sewer
With City Sewers in accordance with application on file and governing ordinances.
ATTENTION 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 area. Do not cover any portion of sewer before it has been inspected.
N, I No. 2Obtain full information regarding Ordinance 11.16.030 and Regulations governing side sewers when you get permit.
NO --'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 % will be permitted.
E' 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. 5--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.
'The City of Edmonds
APPLICATION
for
SIDE SEWER PERBM
NEW CONSTRUCTION [I REPAIRS
OWNER 1-1--"--rlve-At:� - ----------------------------
......... /-1�7
ADDRESS ...... - -------- — -----------------
j It
EASEMENT No.
CONTRACTOR
.... Y, - `e
PERMIT No
LEGAL DESCRIPTION: LOT No - -------------- �-/ ......................... BLOCK No - --------------------------------------
NAME OF ADDITION;�?i7 .......... - — -------------------------------------
4
Approved:
DATE......... ----------
13Y----------------------------------------------------------------------
STREEI FILE
ZZA Zipper Zeman_&socigLegs
Jnc.
Enigma Geofechnical and Environmental Consulting
15
IUL 08 20C
BUILDING DEPARTMENT
CITY OF EDMONDS
August 31, 2004
J-1952
Coffman Engineers, Inc. ,
1601 Fift Avenue, Suitc 900
Seattle, Washington 98ioi
Attention: Nft. Gary ol 1, P.E.
Subject: Geotechnical Evaluation of Damage
Babson Residence
1873178' Place West
Eld-monds, WasbCmgton
Allstate Insumce, Company Claim # 467 254 9424
Dear Mr. Gill:
As requested and authorized by Coffman Engineers, Inc., Z4q)er Zeman Associates, Inc.
has completed a gootechnical evaluation of damage to the Babson residence in Edmonds,
Wasbington. The purpose of this evaluation was to assess site conditions in.order to identify the
cause of damage reported to us and to observe the site for evidence of earthquake dmiage- Our
scope of work consisted of. observing site conditions. limited subsurface exploration,
geoteclmical engineering analysis, and preparation of this report.
This letter'is an instrument of service and the oonclusiorts presented herein have bt�en
prepared in accordance with genemlly aecepted. geotechnical engineering practice. This letter
has been pmpared for the exclusive use of Coffman Engineers, Inc,, and Allstate Insurmce
Company for specific application to the subjed property and the stated purpose.
The findings and conclusions in this - report are based partially on observations made
during site visits on July 20 and August 4, 2004. In. the event of any cmng,.s in the site
conditions after the referenced site visits, it may be necessary to re-evaluate the conclusiom, of
this report.
SXT&MCT PROPERTY DESCRIPTION
The subject property is -an existing skgle-family residential property lo I cated at 18731
78' Place West in Edmonds, Washington. 7he property is accessed from 78' Place West on a
concrete. driveway that slopes down towards a two car attached garage. The home site is
relativelY flat� and the back yard (on the cast side of the house) abuts a slope thatolrops down an
estimated 30 feet to 70h Avenue West . ne residence is a two-story, wood fiame structure, built
in 19,68. The residence footprint is. approximately 1100 square feet. On the lower level
approximately half is finished daylight ba�etnent and half is gmge.
18905 3r Avenue west #117,, Lynnwood, WA 98036 (425) 771-3304 Fax; (42.5) 771 -'3549
ZZABabson Residence, 18731 7e Place Wes�t, Edmonds, Washington
Allstate Insurance Company Claim # 467 254 9424
J-1 962
August 31, 2004
Page 2
SITE CONDITIONS
We visited the site on July 20, 2004 with Mr. Gary Gill of Coffinan Engineers, and on
August 4, 2004 with Underground Detection Sm-vice'% Inc.. We observed conditions inside and
outside the home. Our observations are summarized below. It is our understanding that Coffinaa
Engineers, Inc. is providing structural engineering evaluations of the subject property; our
observations were therefore limited to those that we considered relevant to foundation and floor
slab suppoit and movement.
Exterior Conditions
A catchbasin drain in the driveway, at the base of the slope down from the street to the
garage, was observed to be partially filled with soil and sediment debris. A flow test of
the drain indicated that a maximum of 10 gallons per minute, flows out of the catchbasin
through the pipes. The direction of flow appeared to be towards the north. Theoutlet for
the drain cold not be located.. I
A void is present under the north fbundation wall At the ncTtheast comer of the house.
With a tape measure, this void was probed to a length of 21 feet, which is approximately
the distance to the south interior waU separating t& garage from the finished daylight
baisement. Where visible, the void was up to 3 to 5 inches high and 12 or more inches
wide.
A deck attached to the east side of the house is supported on posts that areout of plumb.
The post are supported at the top of a slope that is estimated to be at an inclination
between 30 and 50 percent. The vegetation on the slope suggests that it is comprised of
fill that was probably placed when the house was i bifift. The tree�i growing on the slope
am slightly bowed, indicative of slow downslopc creep of the slope face.
Interior Conditions
The second level latchen and hallway floors slopm� towards the center of the house.
Sheetrock in the kitchen is cracked.
11e concrete floor slab in the daylight basement.was uncovered at the time of our site
visit. We were told that A -Pro was recently hired by the Babsons to inject grout under the
floor slab to lift the floor and the floor coverings had been removed for that purpose.
Numerous -'/. inch diameter holes were drilled through the floor by A -Pro, but the
grouting was not completed. The floor slab wai cracked, and was sloping down several
inches towards the east.
A foundation supporting ffie central part of the house fivming was present in the north
part of the daylight basement. This foundation appears to have, settled several inches.
The concrete floor in the garage had several Y4 inch diameter holes that had been drilled
by A -Pro, In the, south pad of the garage, one of the holes had repo-ftedly caused A -Pro to
stop work.'They had concluded that a leaking sewer was present under the garage floor.
By probing with a % inch diameter steel probe, we confirmed that the soils below the
floor at this location were soaked with leaking sewage. The garage floor slo.pes down
toward the center of the house.
J-1962,083104
0 0
ZZABabson Residence, 18731 W Place Wes% Edmonds, Washington
WNW Allstate Insurance Company Claim # 467 254 9424
J-1962
MIAMI August3l.2004
Z�Nm Page 3
• Tapping on garage floor and daylight basement floor slab induces hollow Sound at
numerous locations4
• Underground Detection Services, Inc. was on site on August 4, 2004 to locate and viinv
the interior of the sewer near the A -pro driUed hole that encountered leaked sewage. A
camera was run down the pipe and disclosed that the
pipe sags as it crosses below the
south part of the garage floor. The sagging section of pipe appears to have dropped at
leasi 3 inches, as evidenced by standing water in the pipe during the inspection. The
sagged section is 8 Y2 feet long, and was marked with paint on the. garage floor. The p1N
was at a depth of 12 to 14 inches below the garage floor.
• There was no leak visible during the inspection of the pipe interior. It appears that the
sag ging section of pipe holds water, but leakage occurs when flow backs up in the pipe.
• During the pipe inspection, we probed through the A -Pro drilled hole that was close to
the pipe. There was no evidence that the drilled hole damaged the p�pe�
Geeloge Conditions
A K inch diameter steel probe was used to assess soil density 4acent to the house.
Probing indicated medium dense to dense surficial conditions adjacent to exterior
foundatiom and through the A -pro drilled holes in the interior slab.
'Me geologic setting of the property indicates that the native site soils originated as
glacial till, which- typicaUy is of high sts-mgth and relatively incompressible. The
topographic conditions suggest that fill underlies much of the house, to estimated
thicknesses of up to 10 to 20 feet.
Other information
John A. Martin & Associate�, Inc, inspected the house on March V, 2001, and prepared a
"Nisqually Earthquake Damage Assessment!' summarizing their observations. On that
date, no settlement of the garage or daylight basement slab was noted.
CONCLUSIONS AND RECOMMENDATIONS
Ilere is limited evidence of long term pre-existing settlement and rnovcment at.thosite,
despite that fact that a deep fill deposit underlies much of the house. The only area that has
subject to damage caused by long term earth mov . ement was the exterior wood deck at the
southmt comer of the, house. Based on our visual reconnaissance and evaluation, and
considering that the house was inspected during March 2001, we conclude that settlement of the
interior daylight basement floor sM,. the central foundation in the north pad of the daylight
basement� and the garage floor slab occurred after the February 28, 2001 Nisqually.eaAhquake. It
is pwbable that this settlement was caused by leakage from the sewer pipe that crosses under the
south part of the garage floor. Leakage from the pipe caused consolidation of the fill that
supports the house Although the leak was not found during this evaluation, we consider it
probable that earthquake shaking caused or exacerbated the leak, based mainly on the, tin'iing of
the leakage. It is our opinion that if the. pipe were leaking prior to the earthquake, then settlement
J-196M03104
0 . 0
ZZABabson Residence, 18731 7e Place West, Edmonds, Washington
Allstate Insurance Company Claim # 467 254 9424
NO - M, Eft J-1962
August 31, 2004
MMEM Page 4
would have occtirred at an earlier date and would have been noted during the Mat-ch 2GOI
inspection,
We recommend that repairs of the damage caused by the leaking sewer pipe include the
following:
L Remove south bay of garage floor stab. Replace sewer pipe and floor slab,
2. fill void under garage floor with high -slump grout;
3. Remove floor slab in daylight basement. Replace floor slab,
4. Underpin central foundation that has settled with driven steel pin piles, and relevel house
fi-aming;-
We rworumend that the homeowners also consider the following improvements, to
improve the ability of the fill soils beneath the house to provide adequate support:
5. Improve the density of the fill by compaction gmuting. Altemately, support the HOINV
concrete slabs as structural slabs on pin piles;
6. Support the exterior deck foundations on driven pm piles, with lateral tie beams back to
the house foundation,
Our detailed recommendations for dcuiga and construction of the repairs (item 1 throjigh
4 above) are contained in this report. it should be noted that the rocornmended repairs am
considered adequate to restore the condition of the foundations and lower level floor to the pve-
existing conditions. The improvements listed above may be prudent to correct deficiencie,-,, if
present, in the pre-existing conditions. If the improyements (items 5 and 6) are consideret� we
recommend that additional engineering be provided for their design.
Foundation Underpinning
Considering the cause of the damage and construction considerations, we anticipate that
the underpimiing of footings via srnall diameter steel pipe piles OocaDy ref�rred to as '�Pin!' pile-$)
will provide suitable support for foundation repairs.
The axial load capacity of pin piles is based on the diameter of the pile and resistan(�e,
from the soils over the embedded portion of the pile. We reconunend that pin piles consist of 2-
inch (I.D.) Schedule 80 pin, piles. The 2-inc-h piles should be dtiven to refusal criteria of toss
than 1-inch of penetration in 60 seconds of continuous driving using .1 minimum 90-pound
jacktiammer under the full weight of one-man. We recommend an allowable vertical axial
capacity of 4 kips per pile for 2-inch pin piles installed to rcfixsal rcriteria.
B a*sed on the subsurface conditions int=preted to be, present at tht&, site, we recommend
that the pin piles be supported on native soils below the*s'ite fill. Based on the interpreted depth
to suitable bearing soils, we estimate that the length of the pin piles w-A:I lx- on the order of IS to
25 feeL Final pile lengths will depend on the depth at' which refusal criteria are achieved during
3-1%2,083104
F-1
L
Babson Residence. 18731 Vt'Place Wesi, Edmonds, Washington
MIstate Insurance Company Claim # 467 254 9424
J_ 1962
August 31, 2004
Page 5
installation*. If it is ne='sary to obtain a f= estimate of the pin prile depths, it wowd be
necessary to drill at least one test boring at the site, -
Floor Slab Repair
We recommend that (.zacked or settled pordons of the lower level floor slab be reiroved
and replaced as part � of the - project repairs. After rmoval of the concrete slab, the exislirw,
subgrade soils should -be exemited to a depth which would incorpora - te 4-inches of pea gravel or
crushed ro* and 4-inches of sand. 'Ihe excavated subgrade should be compacted such that an
in -place soil density of at least 95 percent is achieved,using the ASTM-D-1 557 modi-fi ed Proctor
maximum dry density standard.
After compaction of the subgrade soils, placement of the pea gravel or crushed rock will
fimcdon as a capillary break and w0ding surface. The fines content of the capillary break
material should be limited to 3 percent -or less, when based on that soil fiaction passing the U.S.
No. 4 sieve. An impervious moisture baxiier (Visqueen) should be installed atop the import sand
bove the ck
a apillary break material. Two -inches of clean, moist, sand should be placed bot
above and below the Visqueen.
Filling of the void under the north half of the garage floor shoWd be accomplished by
coring holes through the floor and placing high -slump concrete through the holes -
CLOSURF,
It has been our pleasiare- to assist Coffman Engineers, M6.'and Allstate Insurance
Company, and we trtist this letter ineets your cment needs. If you should have any questions,
please do not hesitate to contact us at your convenience.
RespectUly submitted,
Zipper Zeman Associates, Inc.
C
John E ' Zipper, P.E.
President
Mx5'%F1eZ 11241
3-1967,093104
N
0
7
County Park
0
IUUUI
I . 8013*
8364 �.010 80 8005 79,4 Is . 000 009
\ 't 7922 T
18017 18009
18000
180TH PL 18017 78 6 18011
18014 16012
18025 T 7804
18028
18101
18106 18104 --
1 8101 18103 18104
18116 18114 181 ST . PL am 181 ST PL SW 18119 18117 18111
0 18115
13107 18105 1 7913 blob
18118 18120 co 18119 7925 7919
cc i
W IWNQ PL SW 782' 18119 18125
>
18220 0 0 192N 18203
a2ii RI 8110
18228 z
8111 Ia208
8L222 8112 16205 18201
Ia232 182ND PL a103 18213
— 8115 16218 ja216 18209 1821,
Ib
la224 18236
183 9 8117 18226 18227 7810 18223 18219
Ir
8321 Ia3Q2 16301 18312 18326 1 a3O5
18306 Ui 7704 T
Uj
24 > 18332
18303
<
8041
a)
02 2 8133 8111 2
8001 8 18325 18406
184TH ST SW LIS
8310 Post 7605
10
0 184TH f
Seaview Office 7607
8312 18418 18419 7601 7533
18426
Tollefson's
Park Jx
a314 X 18427
f-- Market ?
18432 m I
'1150A
1 E5W 18504 18505 18504
18502
Uj LLJ —4
1 5 4 > 16515 18514 8512 00
185TH PL SW 7800 18510 01
i 7620
18516 —
ir 2
e-27 IM. 2 18527 a2O9 CN 18530 18525
cci
7805 18596 7526
18erru �T
IS603 18604 18601 18604
18603 18602 18605 18604
18606
18615 18612 18607
18613 .18616 18611 18614 -- 18614
18625 18622 3r. 18619 18609 18605
U1 18627 18624 3: 18621 1 -1.
—j 1 8627 18624
18627 1 <
8630
167T ST SW T 8629 imo —
18633 ---------------- �-
18701 18704 18710
-- 18703 18702
Uj T 18703 --- 18707
- -- 18714
79251 18714 1
187TH SW '8717
0 0
L17 8715 18714 18720
' 5
'029
18730
188 M ST SW
188TH ST Ise 7 5
71 7801 0 18807
1 7 8016
18801 761,8,/, 19815
I . . . 7804 18836
18810 18818 18813 16816 18811 7812 8814
IBM — -- :-� 18815i
18823 18824 W
18823 18824 18a24 18822
18822 18829 16519 l8a235
18901 831 8—
U) Is?, '8832 18823
> 18830 tf) '8829,
U,
>
'18908 ,>- 1 18905
8905 n 909 ... 18905
QUARTER SECTION I TOWNSHIP N.W.B.L. I RANGE-1 i I I r =::f
NE 1-8 27 Apmldofrk,SwkmitbCwtyA�
Map pm*w4d � la=oy 14 2M4
SE-7-27-4 'ROW
20 4-036!1---
31
7
02 i 16 �17
2
Ol 1 2
Ps-
02
3 1
1-013 1 k 1
8 -5 18tsT-PL Sw 4 l8tST - 02
3 09 1 : �
; ; , 1"3 1 1[1-0811 SE4VIEW 4IRS 2 0 2
Aiff 1 1-002 6 7 1 8 5
LL-9A.2A ; 1 2
TRA E 6 4 03 2 �o r,
02 ** 18
,,2, WOODS K
6 7 20 7 10 9
11pog 1-0171 - '01-0 1 5 14
�-036 2 1 4� 3
L-17- TR 999
-Tj, 2 '82ND PL-S a 15 a 1 6 00 0,
-0; 2 1 1
1-0
1-074; 3 12 11 10 1 13- Of
:1-018
03
14 02 2
8 1 : -4 - 't 1" - !
I ------ -06 1 2 �l t 4 30
A I I
3
.11043 13 1
9 *-058; �1_76 1-2 CT) 11-04111 8 uj
1 00 1 Olt' 6
9 - 03
2-062 f 02, 031
: qpfq-i;L;tr . X
J 4 12
10
Y- 311-0
11 f 1-0391 04
02 9 1 03
�l 3 '7
10 4 of
1 32
OLYmpie--A
33-
12 02
1-053 zj'048 -1 1
07 (01 1-056 101, 04
91 13 11�2111-111-11 �4TH-
of 2
106
1! 1-08
-4--, of 1-051 9
1-055 105
14
a
04 <> 1-059f of SP 217 (5-79)
1-083 1-057 7 49
TS - 16 02 00
6 7 02
H SOP'S j DO 6 U)
17 IS 19 20 21
3; -fir LU 1 2 3 4
2 2 5 LU of v 1 69.9 5
4 w 22 04
3 104
a 26 25 m 23
9
3 1 i
9 00 N P� LN: 01-00 2 �02A ---------- cl'�
CM0 I i —kt-
------ 07 Ol il
'w STw ---------
I ------- --
03
I .
-
I
4-035
2
--F
E-Off, 11
1 (4349� VIE FIR
1
410 1-0541 1:
11
111-065,
...... 3 2 1
......
so
5? 211_019 3
2 01
01
04
1066:
1-0471s 1-016 1
- I
----------
02
2
---4
4
I 7A
1074
67 4-
�lr�
4
::1-006 1 �L
4 I
11
L
Pa� -
S a
2
—
1-077, �;
S R'S H E
03'
3
,
SPSlA*78 : j
ii-08 Y 1-080
4 1
4
9 37T2. 27 16 15 02 103
14
10 7 1 38 29 26 17
13
6 3-0 3: 25 18
-!Law w& 6 _L7 12 2
12
L 187TFf -ST- ISW — ------------ 36 31
IL: 24 19 IPL
13 - — 1 3
22
21
: 9
3 22 23 24 2 15 17 2 187TH 9
Sw
4 2 4 36 32 23 20
21 20 19 1 1
02 to 10
w 14 3 E06 34 33 4
T AC 16 71 1 1 4 6 7
1.2j 3,z 5
7CC7AVFOvER--sn
-Tl4T
14 9 3
m
7 /4
02 2
�!04 00
3 4 5 6 S
102
02
q,
Ol
Co
101
�UkWZSF I is
7 6 5
4
3
2
1
1 2 3
F
RE
T
Q 'T
8 9 10
11
12
13
14
6 4
Snohomish County Interactivetmit/Zoning Map Page I of I
kee%A-�
WSnohomish County Permit Zoni g Map
005177001201-1,00
0051770000 1100
�CL
00517700002000:
�00517700001000
0051770000?100
005.17700000900 0617527000130100,
Leg end
7700000000-'.,
1,� 00517700000600,,
Td), Pi:jrcels
005f7700000500
Rural 4148S
Township.,Range Grid
00636 7 00001 f 00
SO CA V.3 11 G W
188TH ST SW -
Map; NAa le rljod e s
00469100000400
'-'00469100000300
00636700000700
00636700000800
00636700000900
-kj 9-J.- .4a C,
MIR
Active Permits
Disclaimer:
Mad hazard
Neither Snohomish County nor the Department of Planning and
. I
-7
Development Services warrants the accuracy, reliability or timeliness of any
E 3 �06d,
I �—*
information contained herein and shall not be held liable for losses caused
Airpoil's
by using this information. Portions of this information may not be current or
Urb3n Growth Area
accurate. Any person or entity who relies on any information obtained from
2�oning Labels
this system, does so at his or her own risk.All critical information should be
independently verified.
Zoning Lines
Ale
RCW 42.17.260(g) prohibits the release of lists of individuals requested for
commercial purposes, and requestor expressly represents that no such use
of any such list will be made by user or its transferee(s) or vendee(s).
"Commercial purposes" means contacting or in some way personally
affecting the individuals identified on the list with the purpose of facilitating
one's commercial activities.
on: 5/4/2005
http://gis.co.snohomish.wa.us/serviet/eom.esri.esrimap.Esrimap?ServiceNam.e=Overview&... 5/4/2005