STORM1_BLD20191189 and Inspect Agreementof EDM STO RM WATE R REVIEW COMMENTS
City of Edmonds
Engineering Division
To: Applicant
Date: October 28, 2019
Project Name: Wardak SFR
Permit Number: BLD20191189
Address: 541 12t' Ave N
Review Type: Building (SFR)
Submittal Date: 9/19/2019
Reviewer: Zack Richardson, PE
City of Edmonds, Stormwater Engineer
Recommendation: I recommend that BLD20191189 be withheld until the comments
below are adequately addressed.
Review Comments:
1. Geotech: The plan proposes infiltration within 50' of a steep slope/landslide hazard
area and requires geotechnical approval specific to siting the infiltration facility.
Please include with next submittal a letter/memo of approval from the geotech
which approves the proposed plan, referenced with plan dates as needed to
confirm the plans reviewed by the geotech match those submitted for City
approval.
2. Drainage Report: It is not clear that site conditions are conducive for permeable
pavements; revise report to address the infiltration conditions at the bottom of the
pervious pavements section and/or alter section dimensions as needed.
a. Note: Full infiltration by any method is considered equivalent to permeable
pavements for the sake of MR #5; the intent is not to bind the project any
given BMP if infiltration can be achieved with other BMPs.
3. Drainage Report: Add text to section 4 (off -site analyses) to discuss the overflow
path from the proposed system and impacts along the overflow path(if any).
4. Cl: Show in plan view, and add to the infiltration trench section, an observation
port (as shown in SD-636).
5. C2: Update plan to address SWPP element 13 (protect LID features):
a. Show construction (or silt) fencing to isolate the infiltration trench from
vehicle/construction traffic before & after installation.
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b. Show perimeter protection on the up -hill side of the infiltration trench to
protect against sediment laden flows from uphill clearing after installation.
c. It appears the pervious pavement area cannot be protected from
construction traffic (proposed as construction entrance); add notes to
contractor to over -excavate and obtain geotechnical approval prior to
placing sub -grade materials for the pervious pavement section.
6. C5: Review SD-622 & SD-636 on this sheet and modify or remove any
dimensions or notes, as needed, to avoid conflicting information with the BMPs
as actually proposed (ie. cross out minimum depth and replace with 7' depth,
adjust sub -grade thickness as needed, etc).
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CITY OF EDMONDS - ENGINEERING DIVISION
SPECIAL INSPECTION AND TESTING AGREEMENT
PERMIT # BLD20191189 DATE:
PROJECT SITE ADDRESS:
541 —12tb Ave N
PROJECT NAME: Wardack
SPECIAL INSPECTION AGENCY
*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 perform
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.
® Infiltration Trench
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) R18.
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A. Duties and Responsibilities of the Special Inspector
1. OBSERVE WORK
The special inspector shall observe the site work for conformance 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 Engineering Division
notifying of any items not resolved and/or not installed per the approved plans and specifications.
Items not constructed per the approved plans and specifications will result in a review of the plans
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
system(s), 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 to 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 to the best of
his/her knowledge the project is in conformance 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 as 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
j obsite.
3. RETAIN SPECIAL INSPECTION RECORDS
The contractor is responsible to retain at the jobsite all special inspection records submitted by the
special inspector. These records are to be provided to the City Engineering inspector upon request
and upon completion of work.
C. City of Edmonds Engineering Division Responsibilities
1. APPROVE SPECIAL INSPECTION
The Engineering Division shall approve all Special Inspectors and special inspection requirements.
2. MONITOR SPECIAL INSPECTIONS AND APPROVE REPORTS
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Work requiring special inspection 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 addition to that of the special inspector.
3. FINAL APPROVAL
The Engineering Division may provide final inspection approval after the special inspection
report(s) have been submitted and accepted by the City.
D. Owner Responsibilities
1. The project owner or the engineer or architect of record acting as the owner's agent shall fund
special inspection services.
E. Engineer or Architect of Record Responsibilities
1. Prepare Statement of Special Inspections.
2. Review the special inspection reports and provide corrective action for work that may not conform
to the approved plans.
ACKNOWLEDGEMENTS
I have read and agree to comply with the terms and conditions of this agreement.
Owner name
(please print or type)
Signature
General Contractor Company/Owner name
(please print or type)
Signature
Special Inspector/Agency name
(please print or type)
Signature
Engineer of Record name
(please print or type)
Signature
Return the original signed agreement to:
City of Edmonds Development Services Department
121 5th Avenue North, City Hall Second Floor
Edmonds, WA 98020
ACCEPTED BY CITY OF EDMONDS ENGINEERING DIVISION:
City Official Signature
Title:
Date
Date
Date
Date
Date
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