BLD20151252_Ronquillo_ENG3.pdf
City of EdmondsBLD20151252
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.edmondswa.gov
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
PermitApplication:Date:
#BLD20151252& BLD20151536 (pool)June 23, 2016
th
Project Name/Address:
Ronquillo –810–9Ave S
Contact Person/Address, Fax or E-mail:
Scott Schriber –scott@ronscotthomes.com
Reviewer: JENNIFERLAMBERTDivision:
ENGINEERING
During review of the subject submittal, it was found that the following information, corrections, or
clarifications would need to be addressed. All Handouts referred to in these comments can be accessed at
our website: www.edmondswa.govunder City Government / Development Services Department /
Engineering Division then scroll down to Handouts:
st
1Review –12/17/15
nd
2Review –5/20/16
rd
3Review –6/23/16
BLD20151536 -Pool
1)
OK
New Comment –5/20/16
2)Plans are not consistent with the Site Plan and Civils (i.e. there is a stairs and planters shown to
the west of the pool patio). Please revise such that all plans sheets are consistent.
BLD20151252 -SFR
SITE PLAN
3)As changes are made to other plan sheets, please revise this sheet as needed.
4)OK
5)OK
6)OK
DATE E-MAILED6/23/2016PAGE (1)
City of EdmondsBLD20151252
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.edmondswa.gov
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
7)OK
8)OK
GENERAL COMMENTS FOR THE CIVIL PLAN SHEET
1)As changes are made to other plan sheets, please revise this sheet as needed.
2)OK
3)OK
4)OK
5)OK
6)OK
COVER AND EXISTING SITE CONDITIONS(C1 OF 5)
1)OK
2)OK
3)OK
SITE DEVELOPMENT AND SWPPP PLAN (C2 OF 5)
4)OK
5)OK
6)OK
7)OK
8)OK
9)OK
DATE E-MAILED6/23/2016PAGE (2)
City of EdmondsBLD20151252
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.edmondswa.gov
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
10)OK
11)OK
12)OK
13)OK
New Comment –5/20/16
14)OK
15)OK
STORM DRAINAGE PLAN AND DETAILS (C3 OF 5)
STORM
1)OK
2)OK
3)OK
4)OK
5)OK
6)OK
New Comment –5/20/16
7)6/23/16–Comment was addressed; however, theinvert elevations for thenorthpipe is stated that
the pipe is above ground. It is clear this is a misprint. You can either sumbit a new plan sheet,
redline the plans, or email me the correct invert elevations and I can redline the plans. Please
ensure when revising the invert elevations that the water from the storm main in the right of way
does not back up intothe CB on private property. If it helps withinvert elevations/pipe slope the
City will acceptan 8”pipe from CB#5 to CB#6.
DATE E-MAILED6/23/2016PAGE (3)
City of EdmondsBLD20151252
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.edmondswa.gov
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
5/20/16 –Comment:Provide invert elevations for all pipes in CB #6.
8)OK
9)OK
10)6/23/16–Comment was not addressed. The location ofthealarm for thepump should be shown
on C3. What is shown on C4 is that there will be an alarm, but notthe location. You can either
sumbit a new plan sheet, redline the plans, or emailme the location of the alarmand I can redline
the plans.
5/20/16 –Comment:Show the location of the alarm for the storm pump.
11)OK
12)OK
Comments by the City Stormwater Engineer Program Manager, Jerry Shuster, PE
Drainage Reportfor Ronscott Construction Inc.,May 2015.LSA
1)OK
2)6/23/16–Comment from Herrera:The following information still needs to be clarified by the
applicant in the Drainage Report regarding the pump system design:
The proposed pump system appears to meet the max allowed flowrate from the 2-year
storm, but it appears that the dual pumps may not keep up with the additional head caused
by friction losses when both pumps are in operation. In addition, it appears that the max
flowrate from both pumps operating together will not keep up with the flowrate from the
100-year storm, potentially causing overflow. Please address how flowrates from the 10-
and 100-year storm events will be conveyed.
Is there a backup power supplyfor the pump, per requirement #6 in the “Use of Pumping
Systems for Conveyance of Stormwater on Private Property”, ENGR-DEV(STM)-2011-02?
Please show the backup power supply and add a note that thepump system is hardwired to
the backup power supply.
DATE E-MAILED6/23/2016PAGE (4)
City of EdmondsBLD20151252
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.edmondswa.gov
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
5/20/16 -Comment from Herrera: The following information still needs to be clarified by the applicant
in the Drainage Reportregarding the pump system design:
It appears that the system curve crosses the pump curve at ~12.5gpm (0.0279cfs), which exceeds
the allowable 2-year storm flowrate (0.0168cfs). Please explain how the pump discharge flowrate
will be limited to 7.5gpm.
Provide an explanation on how pumps will alternate in operation, per requirement #6 in the “Use
of Pumping Systems for Conveyance of Stormwater on Private Property”, ENGR-DEV(STM)-
2011-02.
Is there a backup power supply for the pump, per requirement #6 in the“Use of Pumping
Systems for Conveyance of Stormwater on Private Property”, ENGR-DEV(STM)-2011-02?
Is there an overflow path for stormwater (if the pump were to fail) per requirement #7 in the “Use
of Pumping Systems for Conveyance of Stormwater on PrivateProperty”, ENGR-DEV(STM)-
2011-02 that does not result in:
Flooding of a building or emergency access
o
Erosion or downstream sedimentation
o
Slope failure
o
12/17/15 -Comment from Jerry Shuster:The pump system must comply with all the requirements in the
City of Edmonds Stormwater Pumping policy:
http://www.edmondswa.gov/images/COE/Government/Departments/Public_Works/Policies/ENGR-
DEVSTM-2001-02.Pumping.Private_Property.pdf.The requirements in this document includes, but is
not limed to, gravity flow of all runoff to the City’s storm system, with an internal alarm for pump
and/or power, and a backup power source to operate 1 pump.
3)
OK
DETENTION VAULT AND PUMP SYSTEM DETAILS(C4 OF 5) –NEW SHEET
1)6/23/16–Comment was partially addressed. There needs to be an antiflotation device for the
pump chamber. Please revise the plans accordingly.
5/20/16 Comment -Please revise the pump system details to be consistent with the City’s stormwater
pump policy and Standard detail E6.7 (Sewer grinder pump). For example, show antiflotation devices,
DATE E-MAILED6/23/2016PAGE (5)
City of EdmondsBLD20151252
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.edmondswa.gov
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
rails, vent, etc. Make sure that the design shows that the system can be maintained (for example the
standard detail E6.7 shows that the entire lid can be removed for maintenancewhere a manhole lid does
not allow for this).
2)OK
3)OK
4)OK
5)OK
6)OK
7)OK
8)OK
WATER AND SANITARY SEWER PLAN AND DETAILS (C5 OF 5)
WATER
OK
1)
2)OK
3)OK
SEWER
1)OK
2)OK
3)OK
4)OK
5)OK
6)OK
DATE E-MAILED6/23/2016PAGE (6)
City of EdmondsBLD20151252
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.edmondswa.gov
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
DRY UTILITIES–Show on sheets C3 & C5
1)OK
Please resubmit 3 copies of the revised plansand associated documents with a written response to each
item to a Permit Coordinator. Please contact me at 425-771-0220ext 1321or by e-mail at
jennifer.lambert@edmondswa.govif you have specific questions regarding these plan corrections.
DATE E-MAILED6/23/2016PAGE (7)