20150918 Ver 1_More Info Requested_20151013

Smith, Cherri L
From: Tomas Will < tomas @spanglerenviron mental. com>
Sent: Monday, October 12, 2015 4:52 PM
To: Smith, Cherri L
Subject: RE: Town Center Apartments
Attachments: Town Center Apartments GH -2 -08 AA - 3020.pdf; 014 C3.1 - Enlarged Grading Plan 1.pdf;
015 C3.2 - Enlarged Grading Plan 2.pdf; 016 C3.3 - Enlarged Grading Plan 3.pdf; 013 C3.0 -
Overall Grading Plan.pdf
Tomas Will
Environmental Project Scientist
Spangler Environmental, Inc.
www.SoanalerEnvironmental.com
Raleigh Office 919- 875 -4288
4338 Bland Road
Raleigh, NC 27609
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From: Smith, Cherri L [ mai Ito: cherri.smith @ncdenr.gov]
Sent: Monday, October 12, 2015 3:47 PM
To: Tomas Will
Subject: Town Center Apartments
Hi Tomas,
I left you a voice message earlier today and am following up with an email because I'm going to be out of the office most
of the day on Tuesday. I may be missing something with the additional information you sent for Town Center
Apartments, but I just wanted to make sure that a couple of things are understood. The 401 Water Quality Certification
that corresponds to NWP 29 requires structural stormwater BMP's for developments that exceed 24% impervious. The
application indicates that Town Center Apartments is 30% impervious. Here's a link to the 401 language:
NINE 51113121111115
The engineer for this project can't determine that structural stormwater BMP's aren't needed. The only scenario
whereby stormwater BMP's would not be incorporated into a project such as this one is if the City of Raleigh had a local
ordinance that superseded the 401 stormwater requirement. The only time I've seen this come into play is when a
development is adjacent to a 100 year floodplain, and it looks like that could be the case with this development.
If this development is associated with a 100 year floodplain, and Raleigh won't allow stormwater detention, then the
project will still need to comply with diffuse flow requirements since it's in the Neuse River Basin.
Again, please let me know if I've failed to communicate clearly or if I'm missing something with this project. Thank you.

Cherri
Cherri Smith
NCDEQ Division of Water Resources
Raleigh Regional Office
1628 Mail Service Center
Raleigh, NC 27699 -1628
ph. 919 - 791 -4251
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