HomeMy WebLinkAboutREPLAT OF EAST RIDGE - MAJOR AMENDMENT - MJA150005 - CORRESPONDENCE - WETLANDS DOCUMENTSPete Wray
From: Kelly Kimple
Sent: Wednesday, January 06, 2016 3:49 PM
To: Pete Wray; Rebecca Everette
Subject: RE: East Ridge MJA Staff Report
Pete,
This looks great. My only concern is with how the wetland mitigation area is calculated. We've discussed that the water
quality is separate from the wetlands, but that detention is possible within the mitigated wetland. On my last review the
area identified as wetland/detention met the 2.2 acres with water quality separate. There was also sufficient upland
habitat outside the required wetland and buffer area. I would revise the report to say that they are meeting the
mitigation requirements quantitatively and have taken a systems approach with water quality, wetlands and uplands
integrated into one large area with the'total size of that area (12 acres?).
Thanks,
Kelly
From: Pete Wray
Sent: Wednesday, January 06, 2016 2:49 PM
To: Kelly Kimple; Rebecca Everette
Subject: East Ridge MJA Staff Report
Here is the description on how the plan meets these standards in my staff report, derived from your staff
comments. Please let me know if we need to edit or add anything to this?
E. Section 3.4.1 — Natural Habitats and Features
The MJA does not change the East Ridge plan's compliance with the standard. To meet the
standards associated with Section 3.4.1, the project has proposed to apply the quantitative (100'
buffer) and qualitative standards contained in Section 3.4.1(E) of the Land Use Code to enhance the
existing wetland habitat area on -site. The proposed buffer is 100' in width, meeting the quantitative
standard.
The project meets the qualitative performance standards in Section 3.4.1 by incorporating the
following elements into the design:
1. A wetland delineation report completed on March 9, 2015, assessed the wetlands at 4.5
acres. A subsequent wetland delineation report completed on June 24, 2015, assessed the
wetlands at 2.2 acres. The City accepted the June 24, 2015 wetland delineation, with the
agreement that 2.2 acres of wetland will be mitigated on -site, including a 100 foot buffer,
and that the 2.3 acre difference between the delineations would be maintained as
enhanced upland habitat (See attached June Report). The proposed wetland, detention
area includes a larger 2.43 acre area. As part of the proposed mitigation, the proposed plan
includes 1.43 acres of wetland water quality forebays, and 0.63 acres of Low Impact
Development (LID) sand filter ponds (total mitigation area = 2.06 acres). Overall, the
proposed wetland/detention area is over the minimum required area of 2.2 acres,
comprising the slightly decreased mitigation area difference of 0.23 acres.