20050732 Ver 39_Stormwater Approval_20170705

WaterResources
ENVIRONMENTAL QUALITY
July 5, 2017
Mr. Lee Bowman
NNP Briar Chapel LLC
1312 Briar Chapel Parkway
Chapel Hill INC 27515
Subject: APPROVAL OF STORMWATER MANAGEMENT PLAN
Briar Chapel SD East
Dear Mr. Bowman:
PAT MCCRORY
Gommor
DONALD R. VAN DER VAART
Secretary
S. JAY ZIMMERMAN
Director
DWR # 05-0732 v39
Chatham County
The Division of Water Resources (Division) recently reviewed the proposed stormwater management
plan (SMP) for the subject project as required by Individual 401 Water Quality Certification #3567 issued
by the Division on February 3, 2017. Submittal of the SMP satisfies Condition No. 3 of the 401
Certification for this Phase of the project and is subject to the requirements below.
1. The Division approves the SMP consisting of two (2) wet detention basins (ponds) and all associated
stormwater conveyances, inlet and outlet structures, and grading and drainage patterns depicted on
plan sheets dated June 13, 2017, which are incorporated by reference and are enforceable by the
Division. The following conditions also apply 115A NCAC 02H .0506(b)(5)]:
a. The maximum allowable drainage area for the approved Wet Detention Basin #31 shall be
427,940 square feet and the maximum allowable built -upon area within that drainage area
shall be 248,840 square feet. Any changes to these maximum areas shall require the
applicant to submit and receive approval for a revised stormwater management plan by the
Division. [15A NCAC 02H .0506(b)(5)]
b. The maximum allowable drainage area for the approved Wet Detention Basin #32 shall be
589,234 square feet and the maximum allowable built -upon area within that drainage area
shall be 500,980 square feet. Any changes to these maximum areas shall require the
applicant to submit and receive approval for a revised stormwater management plan by the
Division. [15A NCAC 02H .0506(b)(5)]
c. The approved SCMs shall be constructed and operational before any permanent building or
other structure is occupied at the site. [35A NCAC 02H .0506(b)(5)]
d. The SMP may not be modified without prior written authorization from the Division. [15A
NCAC 02H .0506(b)(5)]
State of North Carolina I Environmental Quality I Water Resources
1617 Mail service Center I Raleigh, North Carolina 27699-1617
919 807 6300

NNP -Briar Chapel LLC
DWR# 2005-0732 v39
Request for Additional Information
Page 2 of 2
e. Maintenance activities for the two (2) wet detention basins shall be performed in
accordance with the notarized O&M agreements signed by Mr. Lee Bowman of NNP Briar
Chapel LLC on April 25, 2017. The O&M agreement shall transfer with the sale of the land or
transfer of ownership/responsibility for the Stormwater Control Measures (SCMs). The
Division shall be notified promptly of every transfer. [15A NCAC 02H .0506(b)(5))
f. The applicant and/or authorized agent shall provide a completed Certificate of Completion
form to the Division within thirty (30) days of project completion (available at
https:Hedocs.deq.nc.gov/Forms/Certificate-of-Completion). [15A NCAC 02H .0506(b)(5)]
Please contact Sue Homewood at 336-776-9693 or [e-mail] if you have any
questions or concerns.
Sincerely,
Karen Higgins, Supervisor
401 & Buffer Permitting Branch
cc: DWR 401 & Buffer Permitting Branch File
Gareth Avant, McKim & Creed (via email)
DWR RRO