20061195a-edmonds prof ctr-20061211162531.pdfEdmonds Professional Center
Stormwater Management Review Checklist
(For New Developments with > 5,000 sq ft of new impervious surface)
Project Overview Narrative
(A) Description of existing site (include area of site)
(B) Description of Proposed Development
(C) Discuss offsite drainage impacts to the site & from the site
(D) Discuss disposition of storm water runoff before & after developr
(E) Provide map showing general location of the site & geographical
) features
(F) Description of predeveloped assumptions for site
(G) Description of post developed conditions of the site
(H) Description of Detention Requirements for Development
(1) Description of Water Quality Requirements for Development
(J) Other
Calculations
(A) Area Calculations
(B) Predeveloped Condition Runoff Curve Number
(C) Predeveloped Condition Time of Concentration
(D) Post Developed Condition Runoff Control Number
(E) Post Developed Condition Time of Concentration
(F) Sub basin routing
(G) Predeveloped Condition Computer Model Results
(H) Post Developed Condition Computer Model Results
(1) Detention system assumptions
(J) Detention system routing computer model results
(K) Water Quality Storm Calculations
(L) Other
Plan View- Drainage Conveyance
(A) Label and clearly identify existing & proposed systems
(B) Identify slope, length, diameter & matrerial for all pipes
(C) Catch Basin size/type (check size based on depth, pipe size & a
(D) Catch Basin, invert elevations for all pipes
(E) Downspouts; provide connection (wl adequate depth) to retentic
(F) Pipe slope info versus inverts @CBs and existing pipe info
(G) Profile storm system and show utility crossings
(H) Flow arrows as necessary
(1) Other
4 Plan View & Details- Retention/ Detention (RfD) & Water Qual
(A) Scaled drawing of R/D pond, vault or pipe, including tract bounc
(B) Predeveloped & Finished Grade contours, show max water ele,
(C) Dimension all berm widths (Ponds only)
(D) Show 2 cross-sections through pond, 1 must show control struc
(E) Specify soils and compaction requirements for pond constructic
(F) Location and detail of emergency overflow
(G) Rock protection details
(H) Provide inverts of all pipes, grates, inlets, tanks, vaults & spot e
pond bottom
(1) Access road to control manhole and pond bottoms, plan & data
(J) Section and plan view of control structure
(K) Other
5 Plan View: Other
Show location, identification and dimensions of buildings, prop(
{A) lines, streets, alleys & easements
(B) Show locations of structures on abutting properties within 25 fe
proposed project site.
Show section details of all retaining walls & rockeries, sections
(C) critical portions
(D) Other
City of Edmonds
121 5"' AVENUE NORTH • EDMONDS, WA 98020 • (425) 771-0220 FAX(425) 771-0221
Website: www.ci.ec_ mondsma. Lis
DEVELOPMENT SERVICES DEPARTMENT
Is folio] nrw-1111-1
Plan Check #: 20061195 Date: l 1 Dec 06
Project Name/Address: Edmonds Professional Center
Contact Person/Address/Fax: : fax/email:
Reviewer: Lyle Chrisman, Engineering Program Manager Division: Engineering
The subject application has been reviewed but cannot be completed until the following items have been
addressed/corrected. Please resubmit 3 sets of revised drawings to a Development Services Permit
Coordinator.
Storm Drainage report
1. See attached stormwater management review checklist.
DATE FAXED (Attach fax transmittal)
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