BLD20170372 - Gallavan - E1.pdf
CITY OF EDMONDS
PLAN REVIEW COMMENTS
ENGINEERING DIVISION
(425) 771-0220
City Website: www.edmondswa.gov
DATE:May 10, 2017
TO:Michael Gallavan
mfgallavan@comcast.net
FROM:Mitch Boyd,Stantec Consulting Services
Mitch.Boyd@edmondswa.gov
RE:Application #: BLD20170372
Project: Gallavan-Single Family Residence
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Project Address: 8710 184St SW
During review of the above noted application, it was found that the following information,
corrections, or clarifications are needed. Reviews by other divisions, such as Planning, Building, or
Fire may result in additional comments. Please submit two (2)sets of revised plans/documents
including a written response to each item below.
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Resubmittals can be made at the Development Services Department on the 2floor of City Hall.
Permit Center hours are M, T, Th & F from 8am-4:30pmand on Wednesdays from 8:30am-noon.
City of Edmonds handouts, standard details, application and other forms, and development code
may be referenced on the City website: www.edmondswa.govunder Services/Permits and
Development.
GENERAL
1)SubmitROW Permit Applicationform
2)Submit Side Sewer Permit Applicationform
3)Include a City Engineering Division approval block on all plan sheets. Refer to sample on
City website.
4)A Stormwater Covenant is required to be recorded against the property based on the
proposed stormwater facilities for the project. Please complete the covenant, including
notarization and any required exhibits and submit to the city. The document must be
complete, but will not be recorded prior to permit issuance. Prior to construction final
location of facilities are to be verified (by field inspection and asbuilt) and then the covenant
will be recorded.Please see covenant attached in email.
5)City code requires the driveway to be paved from the edge of existing pavement a minimum
distance of 20-feet or to the property line, whichever is greater. Please label the driveway as
asphalt from the paved road to 20’ from the existing pavement. Once on private property
and past the 20’ mark, the driveway may be any material the applicant chooses or as
required to meet stormwater code requirements.
6)Utility patches shall be combined and full width or half width overlay will be required
depending ontheextent of disturbance. Where utility patches fall entirely within one travel
lane, the overlay shall extend to the centerline of roadway. Where utility patches extend into
both travel lanes then a full width overlay is required.Include City of Edmonds standard
detail E2.3 in the plans.
7)Please note: additional comments not included in this reviewmay be produced after
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reviewing the next submittal
TESC,GRADING, & DEMOPLAN
1)Incorporate and referenceCity standard detail E1.1for filter fencing.
2)Show construction entranceon the plans and incorporate and referenceCity standard detail
E1.2.
3)Incorporate and reference City standard detail E1.3for catch basin protection.
4)Orange protective barrierfencing shall be placed at the drip line of trees toremain and
around areas proposed for low impact development techniques, such as theinfiltration
system, to protect the area from compaction.
5)Please provide the location of the temporary stockpile. Add a note that the stockpile is to be
covered within 24hours.
6)Add note: Install and maintain all TESC measures according to approved plans, City of
Edmonds standard details, and all other measures that may be required during construction.
7)Please update the title of the TESC and Grading Planto “TESC, Grading,and Demo Plan”.
8)Add a note to the plan that existing gas, and sewer are to be capped a minimum of 20’ away
from the foundation of the existing and proposed houses prior to demolition.
9)Add a note to the plan that the existing water line is to be disconnected at the water meter
prior to demolition. Install a hosebib with an AVB attachment at the meter.
10)A note regarding driveway grading is unclear. Please revise and relocate the comment.
DRAINAGE AND UTILITY PLAN
1)As indicated by the Fire Department, a firesprinkler system is required for this property.
Typically if there is an existing water service line from the watermain to the meter,the water
service line/meter will not be the appropriate size and a new tap will be required. The
applicant will be required to pay for the new tap on the main and the new meter.
a.Please add a note that a 1” meter is to be installed
b.Show the water meter located in the right-of-way, such that the back of the meter is
on the property line. The water meter shall not be located within the driveway.
c.Please show a 1-1/2” water service line to be installed from the back of the meter to
the house (as required for a combination fire and domestic service).
d.Please label the pipe material and note tracer wire to be installed on the water service
line.
2)The proposedwaterline runs directly through the proposed infiltration system. Relocate the
waterline.
3)Once the waterline is relocated, ensurethat there is a minimum of 3’ of horizontal separation
between the waterserviceand dry utilities (i.e. power, phone, gas, cable, etc.).
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4)Please show the watermain within 184St SW.
5)Aminimum of 10’ of horizontal separation is required between water and sewer lines.
6)A minimum of 5’ of horizontal separation is required between water and storm lines.
7)Add a note to the plans indicating where the landscape irrigation backflow assembly will be
located (if one is proposed).
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8)Please add a note to the plans that all final restoration shall be completed by the contractor
not the City of Edmonds.
9)Label pipe material and size. The sewer lateral from the main to the property line shall be
6”. Once on private property the sewer may reduce to 4”.
10)Show a 6” cleanout at the property line.Please add a note that the 6” cleanout at the property
line shallhave a 12” cast iron lamphole cover with ½” hexbolts.
11)Show a cleanout located within 2’ of the houseand when there is more than 100’ between
cleanouts.
12)Provide invert elevations at the sewer main, the sewer cleanout at the property line,and at
the house so that a minimum 2% slopeand minimum 2’ pipe coveragecan be verified. If
the slope of thesewerpipe exceeds20% the pipe will need to be anchored.
13)Please add a note that theexistingside sewer will need to be TV’d by the contractor and
video must be submitted to the City for review and approval to re-use. Add notes to the
plans to contact Edmonds Public Works Sewer Division, 425-771-0235, to schedule
inspection.
14)Revise the drainage note on the plan as it is unclear. It is confusing in determining whether
roof drains are tributary to the infiltration trench.
15)Will the roof drains combine with the footing drains? If so, add a note to the planto clarify.
If not, please show the footing drain discharge location and the roof discharge location.
16)Show all dry utilities and required utility separation. Please add a note that a minimum of 3’
separation is required between the dry utilities (power, gas, phone, cable, etc.) and sewer,
water, and storm and 5’ from any City main lines.
17)Remove the comment from the plans discussing capping existing utilities. Capping existing
utilities is part of thedemo process and shouldn’t be included in the proposed drainage plan.
STORMWATER REPORT
The following comments are provided from Robert C. Edwards, PE, Stormwater Engineer. Please
contact Robert directly at 425-771-0220 or by email at robert.edwards@edmondswa.govwith any
specific questions you may have regarding these comments.
The proposed project site includes existing impervious surfacearea. If a stormwater management
system was installed to mitigate the existing impervious surfacearea, please provide the design
information for the system and show it on the proposed plans. If an existing stormwater
management system does not exist forthe existing impervious surfacearea, the 2017 stormwater
code requires that mitigation of 25% of the existing impervious surface be included in the proposed
stormwater design. Please review ECDC 18.30.060.D.5.b.i regarding the applicability and
requirements for the Retrofit bmp.
Stormwater Review
Date of Review: March 22, 2017
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File/Address: BLD20170372 / 8710 184St SW
Reviewer: Robert C. Edwards, PE, Stormwater Engineer, City of Edmonds
Background
This is classified as a Category 1 Small Site Projectbecause it creates/adds impervious area more
than 2,000 SF and less than 5,000 SF.
Category 1 Small Site Projects are subject to Small Site Minimum Requirements 1, 2, 3, 4, and 5.
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Minimum Requirement #1 –Preparation of Stormwater Site Plan
Comments:
1.Drainage Report: Infiltration facility sizing calculations are missing.
2.Drainage Report: Hydrology (WWHM or Equiv.) is missing
3.Drainage Report: It is not clear if the infiltration facility will accommodate the requirement
to retrofit 25% of the existing unmanaged hard surface. (18.30.60.D.5.b.i) Provide a clear
tabulation of new hard surface, hard surface to remain, and retrofitted hard surface.
4.Sheet C3.0: A catch basin is shown inside of the proposed infiltration facility. This will
reduce the infiltration facility capacity.
5.Sheet C3.0: Provide detail for proposed infiltration facility. Include Length, width, depth,
backfill, perforated piping, catch basin, filter fabric, and cover.
6.Sheet C3.0: CB #1, only one invert elevation is show. It is not clear how the facility will
function if the stormwater in this catch basin bypasses the facility.
7.Sheet C3.0: The new water service line is shown running through the proposed infiltration
facility. Update the water line to avoid the proposed infiltration facility.
Minimum Requirement #2 –Construction Stormwater Pollution Plan
Comments: None
Minimum Requirement #3 –Source Control of Pollution
Comments: None
Minimum Requirement #4 –Preservation of Natural Drainage Systems
Comments: None
Minimum Requirement #5 –Onsite Stormwater Management
Comments: See Mr#1 comments.
Minimum Requirement #7 –Flow Control
Comments: None
Minimum Requirement #8 –Wetland Protection
Comments: N/A
Minimum Requirement #9 –Operation and Maintenance
Comments: None
Minimum Requirement #11 –Financial Liability
Comments: N/A for SFR
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