BLD2019-0636Type: POOL OR HOT TUB
Owner/ Business: MARGO DAY Status: ISSUED
Subtype: HOT TUB OR SPA RESIDENTIAL
Parcel No: 00423000005200
Site Address: 219 SKYLINE DR EDMONDS,WA 98020-2964
Applied: 5/31/2019
Subdivision: 004230
Lot:
Issued: 5/12/2020
Fire Sprinklers: No
Lot Area: 0 Zoning: RS-12
Final:
Valuation:
Occupancy Type: Construction Type:
Expiration Date:11/12/2020
Code Edition:
No. Stories: 0 # of Dwelling Units: 0
Issued by: NED
Scope of Work: DAY -HOT TUB 315 GALS
WA State Contractor L & i #: POINTPC916PE City of Edmonds Business License #: 602454996-001-0001
NAME TYPE NAME
ADDRESS PHONE EMAIL
APPLICANT MORRIS ORIGINALS
(360)223-3359 CORRYMORRIS@GMAIL.COM
2243182nd AVE W, Edmonds
CONTRACTOR ON POINT CONSTRUCTION
(425)220-2671
WA 98026
OWNER MARGO DAY
219 SKYLINE DR, EDMONOS WA
MARGODAYl@HOTMAIL.COM
98020-2964
•' Al•
DESCRIPTION
ACCOUNT AMOUNT
PAID
PAID DATE
RECEIPT #
B-BUILDING PERMIT - OTHER FEES
001.000.322.10.000.00
$100.00
$100.00
5/11/20
R5259
B-BUILDING PLAN REVIEW FEE
001.000.345.83.000.00
$100.00
$100.00
5/31/19
REC076500
RECORDING FEE
001.000.345.89.030.00
$215.50
$215.50
5/11/20
R5259
VIOLATION COMPLIANCE FEE
001.000.353.70.000.00
$200.00
$200.00
5/11/20
RS259
X-TECHNOLOGY FEE
001.000.321.99.100.00
$35.00
$35.00
5/11/20
R5259
TOTALS: $650.S0 $650.50
CONDITIONS
CONDITION TYPE
STATUS
NOTES
Cross Connection Control
Cross -Connection control assemblies, for backflow prevention, are required on the
following fixtures. Verify meter/backflow assembly type and specifications.
Electrical Permit
Obtain Electrical Permit from State Department of Labcr & Industries. 425-290-1309
Fences, gates, and arbors shall be located on private property. Property owner
Fence Location
responsible for determining property lines. Fence shall not enclose or prevent access to
any City maintained utilities.
Applicant, on behalf of his or her spouse, heirs, assigns, and successors in interests,
agrees to indemnify defend and hold harmless the City of Edmonds, Washington, its
Hold Harmless
officials, employees, and agents from any and all claims for damages of whatever nature,
arising directly or indirectly from the issuance for this permit. Issuance of this permit shall
not be deemed to modify, waive or reduce any requirements of any City ordinance nor
limit in any way the City's ability to enforce any ordinance provision.
Hose Bibbs
Hose Bibbs (exterior faucets) are required to have a permanently affixed anti -siphon
device installed.
Printed: Tuesday, May 12, 2020 9:13:46 AM 1 of 2
POOL • ' HOT TUB Permit
aty of Edmonds: PERMIT NUM • "{'
f 1 WA <I t
• 1 i f • •
www*edmondsm.gov +
Lot Lines Staked
Lot line stakes must be in place at the time of foundation/setback inspection.
Installation, use and maintenance of equipment and components shall be per
Manufacturer's Specs
manufacturer's specifications, installation instructions, and applicable state codes.
Provide manufacture's installation instructions on site for Building Inspector.
Final approval on a project or final occupancy approval must be granted by the Building
Occupancy
Official prior to use or occupancy of the building or structure. Check the job card for all
required City inspections including final project approval and final occupancy inspections.
Any request for alternate design, modification, variance or other administrative deviation
(hereinafter "variance") from adopted codes, ordinances or policies must be specifically
requested in writing and be called out and identified. Processing fees for such request
shall be established by Council and shall be paid upon submittal and are non-refundable.
Permit Disclaimer
Approval of any plat or plan containing provisions which do not comply with city code
and for which a variance has not been specifically identified, requested and considered by
the appropriate city official in accordance with the appropriate provision of city code or
state law does not approve any items not to code specification.
Sound/Noise originating from temporary construction sites as a result of construction
activity are exempt from the noise limits of ECC Chapter 5.30 only during the hours of
Sound/Noise
7:00am to 6:00pm on weekdays and 10:00am and 6:00pm on Saturdays, excluding
Sundays and Federal Holidays. At all other times the noise originating from construction
sites/activities must comply with the noise limits of Chapter 5.30, unless a variance has
been granted pursuant to ECC 5.30.120.
Underground Wiring
All new, extended, re -built or relocated electrical utility and/or service shall be placed
underground.
INSPECTIONS
- Schedule Online at: htt s://Inspection.MyBuildingPermit.com
SEQID
INSPECTION TYPE
INSPECTOR COMPLETED RESULT NOTES
DATE
ENGINEERING FINAL
6/11/2019 APPROVED
X-3 BUILDING FINAL"
X-0 CROSS CONNECTION
FINAL
Printed: Tuesday, May 12, 2020 9:13:46 AM 2 of 2
'nc. 1 %9V
BUILDING PERMIT Office
APPLICATION Permit #: 201 (1 _ o(a,
D f m nt S r i s
eve op e e v ce
Building Division
121 5th Ave N / Edmonds, WA 98020
425.771.0220
For handouts, submittal requirements, permit status and inspection
scheduling information go to: www.edmondswa.gov.
PLEASE NOTE: Intake appointments are required for New Single Family
Residences, Large Additions, ADU's, New Commercial, and Major Tenant
Improvement application submittals. If plans are prepared by a profession-
al, electronic files are requested in addition to the hard copies. Please bring
electronic files on a flash drive or coordinate for electronic transfer.
Please call425-771-0220 to schedule an intake appointment!
JOB SITE INFORMATION/LOCATION: (Where the work is taking place)
Job Site Address: 'Ltd
Parcel:
Lot /Unit/Suite #: Subdivision:
PROPERTY OWNER:
Name: 'C__)-' 1
Mailing Address: 'ZA°7 �v�u� BIZ•
City/State/Zip: �.�•
Phone #:
Email: t--�as�c�o�—t 1�,�a�--to��•c�-a.
OWNER INSTALLATION: *If yes, read and sign*
Will work be performed by the property owner? ❑ Yes ❑ No
I own, reside in, or will reside in the completed structure. This
installation is being made on pr erty that I own which is not
intended for sale, lease, rent, r e change according to RCW
18.27.090.
Owner Signature:
APPLICANT / CONTACT INFO TION:
Name of Applicant:
Mailing Address:
City/State/Zip: >E•—� �� �ZLE�
Phone#: 2&2O.7'0:::> �7
E-mail:t•
GENERAL CONTRACTOR: (If different from applicant)
General Contractor: 'f;0—a
Mailing Address:
City/State/Zip: _
Phone #:
E-mail:
STATE UBI #:
CITY OF EDMONDS BUSINESS LICENSE #:
WA STATE CONTRACTOR L & I #: (CCB) & EXPIRATION DATE:
TYPE OF Details on Page
❑ Accessory Structure/
❑ Addition
Detached Garage
❑ Demolition
❑ Mechanical
❑ New Single Family / Duplex
❑ Plumbing
❑ Fire Sprinkler
❑ Remodel
❑ New Commercial/ Mixed Use
❑ Re -Roof
❑ Signs
❑ Tank
❑ Tenant Improvement
Other jm---R�
Remodel Permit fees are based on:
The value of the work performed. Indicate the value (rounded to
the nearest dollar) of all equipment, materials, labor, overhead,
and the profit forthe workindicated on this application.
Valuation: _moo
PROPOSED NEW SQUARE FOOTAGE FOR THIS APPLICATION
Base t sq ft: Finished 1-1Unfi ed ❑
1st Floor, sq ft:
2nd Floor, sgft:
Garage/Carport:, s
Deck/C red Porch/Patio:
ther sq ft:
PROJECT DESCRIPTION
I certify that the information I have provided on this form/application is true,
correct and complete, and that I am the property owner or duly authorized
agent of the property owner to submit a permit application to the City of
Edmonds.
Print Name:
Signature: DateS .
GENERAL COMMERCIAL DATA
Occupancy Group(s): Occupant Load(s):
Type(s) of Construction:
Fire Sprinklers: Yes ❑ No ❑
WA STATE ENERGY CODE: If your project affects the building envelope,
mechanical systems, and/or lighting, you must complete the
appropriate WSEC forms.
DEFERRED SUBMITTALS: All commercial building permits that will require
associated plumbing, mechanical, fire sprinkler, and/or fire alarm
permits are applied for separately.
TI / CHANGE OF USE / NEW BLDG: Include TRAFFIC IMPACT worksheet
MECHANICAL EQUIPMENT COUNTS.Relocated)
BTUs Gas / Elec / Other Qty
A/C Unit /Compressor
Air Handler /VAV
Boiler
Dryer Duct
Exhaust Fans
Fireplace
Furnace
Heat Pump Unit
Hydronic Heating
Roof Top Unit (Provide eleva-
tions if a Commercial Bldg)
Other:
COUNTSPLUMBING FIXTURE . • or re -piped)
Qty Qty
Clothes Washer
Tub/ Showers
Dishwasher
Backflow Device (RPBA, DCDA, AVB)
Drinking Fountain
Pressure Reduction/ Regulator Valve
Floor Drain/Sink
Refrigerator Water Supply
Hose Bibs
Water Heater - Tankless? Y or N
Hydronic Heat
Water Service Line
Sinks
Other:
Toilets
Other:
GAS/FUEL CONNECTION COUNTS (New, Relocated or re -piped)
BTUs Qty BTUs Qty
A/C Unit
Outdoor BBQ/ Fire pit
Boiler
Stove/Range/Oven
Dryer
Water Heater
Fireplace/ Insert
Other:
Furnace Other:
MEDICAL1 . • VACUUM COUNTS
Relocated or • •
QtY QtY
Carbon Dioxide
Nitrous Oxide
Helium
Oxygen
Medical Air
Other:
Medical - Surgical Vacuum Other:
DEMOLITION
Type of structure to be demolished:
Square footage of structure to be demolished:
AHERA Survey done? Y / N
PSCAA Case #:
Critical Areas Determination:
Study Required ❑ Conditional Waiver ❑ Waiver ❑
1
Fill in Place ❑ Fill Material:
Removal ❑
Size of Tank (Gallons)
Critical Areas Determination:
Study Required ❑ Conditional Waiver ❑ Waiver ❑
• 1
Grading: Cut cubic yards
Fill cubic yards
Cut / Fill in Critical Area: Yes ❑ No ❑
1 PROVISIONS
GENERAL
APPLICATIONS: Applications are valid for a maximum of 1 year.
ESLHA Applications, 2 years.
LICENSING: All contractors and subcontractors are required to be licensed
with Washington State Department of Labor & Industries and have a
current City of Edmonds Business License.
City of Edmonds
Critical Area Notice of Decision
Applicant:
J (o S
Property Owner:
CA�
Critical Area File #:
(lei- z0 IS 00 f
Permit Number:
/% (3
Site Location:
C( S
Parcel Number:
0 0 g Z 3 .w 0 O 0 S" Z--CD
Project Description:
i (06
❑ Conditional Waiver. No critical area report is required for the project described above.
1. There will be no alteration of a Critical Area or its required buffer.
The proposal is an allowed activity pursuant to ECDC 23.40.220, 23.50.020, and/or
23.80.040.
3. The proposal is exempt pursuant to ECDC 23.40.230.
❑ Erosion Hazard. Project is within erosion hazard area. Applicant must prepare an erosion and
sediment control plan in compliance with ECDC 18.30.
Critical Area Report Required. The proposed project is within a critical area and/or a critical area
i 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:
1. 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.
❑ 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.
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.
❑ Conditions.'Critical Area specific condition(s) have been applied to the permit number referenced
above. See referenced permit number for specific condition(s). _tso
tLfl Notice on Title. -Critical area notice on title recorded under AFN
1q,Cf��a�
Reviewer
---�
Signature
Lf i �Z (
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 1112912016
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APPROVEED DATE:
BLDG. OFFF Cl;",! :
41
Sundance Spas 780 Dover TM
Specifications
Dimensions: ...................................... 69" x 82" x 30.5" (175.3 cm x 208.3 cm x 77.5 cm) lk
Seating Capacity: ............................. 2-3 Adults
Dry Weight: ....................................... 620 Ibs (281 kg) B
Filled Weight (Spa Volume): ............ 3,247 Ibs (1,473 kg) i
Filled Weight (Average Fill): ............ 2,538 Ibs (1,151 kg)
Water Capacity (Spa Volume): ........ 315 US Gal (1,192 Liters), A;
Water Capacity (Average Fill): ........ 230 US Gal (871 Liters)
Controls: ........................................... 780 Series Solid -State Electronic Controls with ,� ► i
LED Readout, Programmable Temperature,
Filtration, Heat Cycles
Water Delivery: ................................. 1 High -flow pump
Pump 1: ............................................. North America (60 Hz): 2-Speed/1.5 HP Continuous, 13.OA Max., 48 Frame
Export (50 Hz): 2-Speed/2.0 HP Continuous, 8.OA max.
Pump 2: ............................................. 24-Hour Filter/Circulation Pump
Total Hydrojets:................................23
Seat A Jets: ....................................... 2 SMT Micro, 6 SMT Fluidix, 2 Mini Vortex
Seat B Jets: ....................................... 2 Vortex
Seat C Jets: ....................................... 2 SMT Micro, 9 Accu-Pressure
Air Controls/Massage Selectors: ... 3/1 Standard air control LED lights
Filter: ................................................. MicroClean@ Filter System, 125 ft2 Combined Filtration, (1 pleated and
1 spun -bound cartridge)
Water Treatment: ..............................
24-Hour Circulation Pump; Factory installed CLEARRAY® Water Purification
System
Lighting: ............................................
Standard Multicolored SunRay LED Light; 4 LED Pin Lights; Indicator light; Air
controls
Synthetic Cabinet: ............................
Available in Coastal, Mahogany, Autumn Walnut
Shell Colors:.....................................North
America: Platinum, Celestite (Gypsum), Sahara, Oyster (Opal), Copper
Sand, Monaco
Export (60 Hz): All North America Colors
Handrails: .........................................
N/A
Headrests: .........................................
Three, 1-Piece Gray
Heater: ...............................................
North America Convertible Model (60 Hz): Low Flow, 1 kW@120 VAC or
Convertible to 4 kW@240 VAC
Export (50 Hz): Low flow, 2.7 kW
Electrical Requirements: ................. North America Convertible Model (60 Hz): 120 VAC@15A with Supplied GFCI
Cord or 240 VAC@30A or 40A (Hard Wired Only);
Export (60 Hz): 230-240 VAC@1 x16A or 2x16A (see manual for more
configurations); or suitably Rated Circuit Breaker to Comply with Local
Electrical Regulations. Certain Countries May Require Dual Power Inputs;
Two GFCl/RCD Breakers are Required for This Configuration.
Limited Warranty*: ............................
North America (60 Hz): 10 Years Shell, 7 Years Shell Surface, 5 Years Plumbing
Component Leaks, 5 Years Equipment and Controls, 5 Years Cabinet, 2 Years
Jets, 2 Years Lights, 1 Year Stereo
Export (50 Hz): 10 Years Shell, 7 Years Shell Surface, 2 Years Plumbing
Component Leaks, 2 Years Equipment and Controls, 2 Years Jets, 2 Years
Cabinet, 2 Years Lights, 2 Years Stereo
Waterfall Feature: .............................
On/Off Flow Rate on when pump 1 is running; Colored Lighting
Audio System (Optional): ...............Factory
Installed BLUEWAVE® Spa Stereo System with Wireles t n�� t I V4"7�7 `
Control, Auxiliary 3.5 mm headphone jack connection, USB connection, FM
radio, BluetoothO compatible and integrated docking station MAY q i Ugh
e.
Special Features (Optional): ............
Factory Installed SmartTubTm module (North American only)
RI 111-flikira
'(See WarrantyX
for S ecific Details) Dimensions/Specifications Subject To Change
r
f�TJ �� 52
V.........-+M 4 41,; EMC ;,- - -- +- -,;-t b. ..... 0r*%C 1k4-4-11,._. . ...........AF ,..._\
Sundance Spas 780 Dover
Operation/Seat Depths
r/ Ir
Seat B Seat C
Seat A
-0�,----
QAir Control - Activates Seat A Jets
(2 SMT Micro, 6 SMT Fluidix, 2 M
Vortex)
Massage Selector [Pump 1]-Adju
B" Massage Level Between Seat A J
J : + Seat B Jets and Seat C Jets
t=Y Air Control - Activates Seat B Jets
(2 Vortex)
� I
Air Control - Activates Seat C Jets
(2 SMT Micro, 9 Accu-Pressure)
Waterfall Selector [Pump 1] - Con
Waterfall Output
b�
ini
sts
ets
trols
23 Total Jets (Stainless Steel Escutcheons Standard)
Accu-Pressure SMT SMT
a- : Jets (9) Micro Fluidix0111%,
0Jets
Mini
Vortex0.11
Vortex
Jet (2)
�]
(4) 7 Jets (6)
Jet (2)
A = 24.50" (62.23 cm)
B = 26.63" (67.63 cm)
C = 25.75" (65.41 cm)
D = 26.50" (67.31 cm)
Spa Operation Subject To Change Without Notice
SEAT DEPTHS
Listed dimensions repre-
sent distance from top of r O O
acrylic to lowest point in
seat. Tolerance t 0.5'
(1.27 cm). O -
e
� 1
Dimensions/Specifications Subject To Change Without Notice
53
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S u ndance Spas 780 Dover
Portable Dimensions
TOP VIEW
82.0" (208.3 cm) Shell
12.13"
(30.79 c
6 Op 00000a
0 0 0 0 0
10.625'
69.0" 26.98 cr
(175.3 cm) m
Shell
���•, / 9.13"
1 (23.18 cm
FRONT 1.0" Conduit Port
1.0" Conduit Port Equipment Bay/ CLEARRAY
Pump Access System located
in the center
68.5"
(174.0 cm)
Skirt
64.58"
(164.03 cm)
Kickrail
5.25"
(13.33 cm)
FRONT VIEW
(Front view of stereo option shown)
Tolerance: ± 0.5" (1.27 cm)
3.5"
9.25" (8.89 cm)
49 cm) `t0.25" (0.635 cm)
BLUEWAVE Drain Hose Located
Stereo Behind Front Panel
15"
LEFT/RIGHT SIDE VIEW
Tolerance: ± 0.5" (1.27 cm)
1.0" Conduit port
IMPORTANT! Always measure each hot tub
STOP for exact dimensions BEFORE designing its STOP
STOP
support and/or decking.
4 X=10.75'
(27.31 cm)
BOTTOM VIEW
I
77.34" (196.44 cm) Kickrail -�
- 81.5" (207.0 cm) Skirt
4X=R7.875"
{= R20.0 cm) Skirt
:m)
5"
(3.81 cm)
30.5"
(77.5 cm)
Dimensions/specifications subject to change without notice. Tolerance: ± 0.5" (1.27 cm)
Dimensions/Specifications Subject To Change Without Notice
54
V.... ...... +-A ♦r.:.. Or1C f...- 1:.....,---4 +- r A-+ ►...,...... �IIC r..:r.F'.. lh��..• /%.......� r....... v..JF .......\
� T•
March 2, 2020
Corry Morris
corrymorrisO gmail.com
RE: Geotechnical Evaluation
Existing Construction
219 Skyline Drive
Edmonds, Washington
Cobalt Geosciences, LLC
P.O. Box 82243
Kenmore, Washington 98028
t
MAR 0 2 2020
We have prepared this letter to discuss aspects of the recently constructed project at the
referenced site with regard to relevant sections of the Edmonds City Code and Community
Development Code. Specifically, Comment No. i from a City of Edmonds letter dated June io,
2oi9 discusses the location of a hot tub within 50 feet of a mapped steep slope area.
Site and Project Description
The site is located at 219 Skyline Drive in Edmonds, Washington. The property consists of one
irregularly shaped parcel (No. 00423000005200) with a total area of about 0.27 acres.
The east -central portion of the property is developed with a multi -story single-family residence
with attached garage and driveway. The remainder of the property is undeveloped and vegetated
with grasses, bushes/shrubs, and sparse trees. There is a hot tub on a concrete slab located in the
western portion of the property.
The property slopes downward from east to west at magnitudes ranging from about 5 to 45
percent and total relief of about 30 feet. There are localized areas with magnitudes of 30 to 45
percent west of the residence extending further west. These slopes are up to io feet in height and
developed with graded benches, landscaped areas with boulders, and other landscaping features.
There are 2 to 8 feet tall rockery walls along the south and west property lines, facing apparent cut
native soils. The hot tub and slab are located in a landscaped area just above a moderately steep
slope and short rockery wall.
Area Geology
The site is underlain by Vashon Glacial Till. Vashon Glacial Till consists of a heterogeneous
mixture of silt, sand, clay, and gravel. These deposits are typically dense to very dense below a
thin weathered zone. Glacial till is typically impermeable and resistant to global instability.
Geologic Hazards
We understand that the site contains areas considered to be steep slope hazards by the City of
Edmonds municipal code.
The slope areas west of the residence have local relief of about io feet and have slope magnitudes
Of up to 45 percent. These areas are fully vegetated with herbs, bushes, and trees; and locally
have rockery walls facing previous cuts.
www.cobaltgeo.com (2o6) 331-1097
March 2, 2020
Page 2 of 5
Geotechnical Evaluation
Code Items and Discussion
23.80.o6o Development standards — General requirements.
A. Alterations of geologically hazardous areas or associated buffers may only occur for activities
that:
1. Will not increase the threat of the geological hazard to adjacent properties beyond
predevelopment conditions;
2. Will not adversely impact other critical areas;
3. Are designed so that the hazard to the project is eliminated or mitigated to a level equal to or
less than predevelopment conditions; and
4. Are certified as safe as designed and under anticipated conditions by a qualified engineer or
geologist, licensed in the state of Washington.
The site is situated within a moderatelv steep slope area that was created over a time through
natural erosion along with grading associated with construction of the residence. backyard areas,
and adjacent properties. The site is not situated within an active or historic landslide and the risk
of landslide activity is very low. Also, the site and adjacent areas are underlain by Vashon Glacial
Till which is resistant to local and global instability
The proposed hot tub and supporting slab will not increase the threat of geologic hazards on
adjacent pro en rties, will not impact other critical areas, and are safe as designed under
anticipated conditions. The slab is located in a nearly level area that was created through
previous legal grading,
23.80.07o Development standards — Specific hazards.
A. Erosion and Landslide Hazard Areas. Activities on sites containing erosion or landslide
hazards shall meet the requirements of ECDC 23.80.o6o, Development standards — General
requirements, and the specific following requirements:
i. Minimum Building Setback. The minimum setback shall be the distance required to ensure the
proposed structure will not be at risk from landslides for the life of the structure, considered to be
120 years, and will not cause an increased risk of landslides taking place on or off the site. A
setback shall be established from all edges of landslide hazard areas. The size of the setback shall
be determined by the director consistent with recommendations provided in the geotechnical
report to eliminate or minimize the risk of property damage, death, or injury resulting from
landslides caused in whole or part by the development, based upon review of and concurrence
with a critical areas report prepared by a qualified professional;
Based on our observations at the site. the slab is essentially set back about q feet from the edge of
a moderately steep slope extending downward to the west. The existing location is suitable and
will not affect slope stability. Local maintenance of landscaping surface materials and vegetation
may be necessarv: however. this is a tvnical situation and not unique to this Dronerty or local
conditions.
2. Buffer Requirements. A buffer may be established with specific requirements and limitations,
including but not limited to, drainage, grading, irrigation, and vegetation. Buffer requirements
shall be determined by the director consistent with recommendations provided in the
geotechnical report to eliminate or minimize the risk of property damage, death, or injury
resulting from landslides caused in whole or part by activities within the buffer area, based upon
review of and concurrence with a critical areas report prepared by a qualified professional;
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Geotechnical Evaluation
The site currently fully developed. No specific buffer (in addition to what is present currently) is
required from a geotechnical standpoint. We recommend that all sloped areas remain vegetated
and protected from erosion through continued maintenance of existing surface landscaping
materials/vegetation.
3. Alterations. Alterations of an erosion or landslide hazard area, minimum building setback
and/or buffer may only occur for activities for which a hazards analysis is submitted and certifies
that:
a. The alteration will not increase surface water discharge or sedimentation to adjacent properties
beyond predevelopment conditions;
b. The alteration will not decrease slope stability on adjacent properties; and
c. Such alterations will not adversely impact other critical areas;
Based on our observations of the finished landscaping and site development, the development will
not and has not decreased slope stability on adjacent properties. will not and has not increased
surface water discharge or sedimentation beyond current levels, and will not/does not impact
other critical areas.
4. Design Standards within Erosion and Landslide Hazard Areas. Development within an erosion
or landslide hazard area and/or buffer shall be designed to meet the following basic requirements
unless it can be demonstrated that an alternative design that deviates from one or more of these
standards provides greater long-term slope stability while meeting all other provisions of this
title. The requirement for long-term slope stability shall exclude designs that require regular and
periodic maintenance to maintain their level of function. The basic development design standards
are:
a. The proposed development shall not decrease the factor of safety for landslide occurrences
below the limits of 1.5 for static conditions and 1.2 for dynamic conditions. If stability at the
proposed development site is below these limits, the proposed development shall provide
practicable approaches to reduce risk to human safety and improve the factor of safety for
landsliding. In no case shall the existing factor of safety be reduced for the subject property or
adjacent properties;
b. Structures and improvements shall be clustered to avoid geologically hazardous areas and
other critical areas;
c. Structures and improvements shall minimize alterations to the natural contour of the slope,
and foundations shall be tiered where possible to conform to existing topography;
d. Structures and improvements shall be located to preserve the most critical portion of the site
and its natural landforms and vegetation;
e. The proposed development shall not result in greater risk or a need for increased buffers on
neighboring properties;
f. The use of retaining walls that allow the maintenance of existing natural slope area is preferred
over graded artificial slopes; and
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Geotechnical Evaluation
g. Development shall be designed to minimize impervious lot coverage;
Based on site topography underl3ing soil conditions and our experience with similar 1rQjects,
the estimated static and seismic factors of safety are well above minimum requirements. The
factor of safety for landslide activity do not appear to have been or will not be affected by the
existing slab/hot tub development.
The development does not nose a risk to critical areas or the need to increase buffers on adjacent
properties.
5. Vegetation Retention. Unless otherwise provided or as part of an approved alteration, removal
of vegetation from an erosion or landslide hazard area or related buffer shall be prohibited;
6. Seasonal Restriction. Clearing shall be allowed only from May 1st to October ist of each year;
provided, that the director may extend or shorten the dry season on a case -by -case basis
depending on actual weather conditions, except that timber harvest, not including brush clearing
or stump removal, may be allowed pursuant to an approved forest practice permit issued by the
city of Edmonds or the Washington State Department of Natural Resources;
7. Point Discharges. Point discharges from surface water facilities and roof drains onto or
upstream from an erosion or landslide hazard area shall be prohibited except as follows:
a. Conveyed via continuous storm pipe downslope to a point where there are no erosion hazard
areas downstream from the discharge;
b. Discharged at flow durations matching predeveloped conditions, with adequate energy
dissipation, into existing channels that previously conveyed storm water runoff in the
predeveloped state; or
c. Dispersed discharge upslope of the steep slope onto a low -gradient, undisturbed buffer
demonstrated to be adequate to infiltrate all surface and storm water runoff, and where it can be
demonstrated that such discharge will not increase the saturation of the slope; and
We concur with the above code items and have no additional comments at this time
Conclusions & Recommendations
It is our opinion that the hot tub and supporting slab are located within a zone of stable soils with
no additional setback or buffer from slope or erosion hazard areas. The construction will not and
does not adversely affect slope stability or geologic hazards within 200 feet of the property.
Closure
The information presented herein is based upon professional interpretation utilizing standard
practices and a degree of conservatism deemed proper for this project. We emphasize that this
report is valid for this project as outlined above and for the current site conditions and should not
be used for any other site. This letter does not discuss the potential or likelihood for soil
settlement below the slab, if fill is present. Soil settlement due to poor compaction or loose soil
removal is not part of our analysis and would be the responsibility of the builder/contractor
and/or owner.
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Geotechnical Evaluation
Sincerely,
Cobalt Geosciences, LLC
2513
54i9 5� f ;
�.
Exp. 6/26/2020
Phil Haberman, PE, LG, LEG
Principal
PH/sc
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Area of Hot 'fub and Slab
4,
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Cobalt Geosciences, LLC
Hot Tub and Slab
SITE PLAN
P.O. Box 82243
COBALT219
Skyline Drive
Kenmore, WA 98028
(206) 331-1097
GEOSCIENCES
Edmonds, Washington
FIGURE 1
www.cobaltgeo.com
cobaltgeo@gmail.com