11-0669 Plan Review Comments #3.pdfCITY OF Egl'ltl'LL'llNDS ® 121 5"' AVENUE NORTH ® EDMONDS, WA 98020
PHONE: 425.771.0220 FAX: 425.771.0221 WEB: r v, �_uir� :� )_ a xc:�v
,mu�puiwiQi ® t x_.
DEVELOPMENT SERVICES DEPARTMENT: PLANNING m BUILDING
March 7, 2012
Mel Maertz
melmaertz@m2architects.net
RE: PLAN REVIEW COMMENTS #3 FOR PLAN CHECK # 2011-0669
T'RIEU SFR AT 7109 LAKE BALLINGER WAY
Dear Mel,
I have again reviewed the above building permit application for the Planning Division. Thank you for
submitting the flood hazard and wetland reports. Based on the updated information submitted on February 23,
I did have one additional concern:
1. Stormwater outfall in wetland buffer: A stormwater outfall is shown near the outer edge of the
Category 3 wetland buffer on the updated Detailed Site Drainage Plan (Sheet C3 of 4) that was
prepared on December 14, 2011. According to ECDC 23.50.040.F.8.c:
Storm water management facilities, limited to outfalls, pipes and conveyance systems,
storm water dispersion outfalls and bioswales, may be allowed within the outer 25 percent
of a standard or modified buffer for Category 3 or 4 wetlands only; provided, that:
i. No other location is feasible; and
ii. The location and function of such facilities will not degrade the functions or values of the
wetland.
First, there was no indication in the submitted materials that addressed why this particular outfall
location is being proposed. Given the location of the parcel, I understand options are limited but
please describe why this is the only feasible location and what other options were considered.
Second, and assuming there is no other feasible location for the outfall, the associated Wetland
Delineation Report from Habitat Ecology and Design, Inc. describes Proposed Development
Activities in Section 4.0 (page 8) but the report does not address the outfall. Please have the
consultant review the proposed stormwater plans and provide an addendum to their December 28,
2011 report describing the impact of the stormwater on the wetland in accordance with sub (ii)
referenced above. If the functions and values of the wetland would be degraded by the location of
the outfall, the consultant will need to propose mitigation (Section 4.1 of their report) based on the
requirements of ECDC Section 23.50.050 and Sections 23.40.110 — 130.
Please make all submittals to a Permit Coordinator, Monday through Friday, 8:00 am to 4:30 pm. If you have
any questions, please contact me at (425) 771-0220.
Sincerely,
Mike Clugston` AICP
Associate Planner