Engineering Prelim Comments-1.pdfMEMORANDUM
REQUEST FOR ADDITIONAL INFORMATION
Date: October 3, 2018
To: Kernen Lien, Planning
From: JoAnne Zulauf, Engineering
Subject: PLN20180057, Groset 2 lot short plat
22027 961h Ave West
The comments provided below are based upon review of the preliminary civil plans &
documents for the subject short plat. Additional information is requested from the applicant
at this time in order to continue review of the application and provide preliminary approval of
the short plat. Please ask the applicant to provide a written response to each of the
comments below and revise and resubmit plans accordingly.
GENERAL
1. The general notes included on this plan set are not the current version of the general
notes available on the city website. There is no requirement for notes on the prelim
drawings but please download the current version of general notes when preparing for
the civil submittal.
2. Please confirm the contours are in the 390s as shown. Surrounding elevations appear to
be in the 380s.
3. The full access to the new lot does not appear to be included in the access easement. The
access easement should include the portion of existing driveway that will be used for
access to the new lot. The access easement shall be a minimum of 15 ft at the property
line.
UTILITIES
1. Show the location of the existing and proposed dry utilities.
2. Show the location of the existing and proposed water meters and the water service lines.
3. Show the existing sewer line to the existing house.
4. Provide approximate invert elevations for the proposed side sewer at house, property line
and new connection to main to show feasibility. Call out length and size of all pipe to
verify slopes.
4. Please submit a stormwater report including full infiltration calculations (see the city's
Stormwater Addendum to determine the specific testing requirements). Show a
stormwater mitigation system on the plans based on the infiltration rate and the
City of Edmonds
infeasibility checklists. Full infiltration and full dispersion shall be ruled out prior to
proposing a bioretention facility.
Thank you.