20050732 Ver 22_Stormwater Approval_20110824

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
August 24, 2011
Chatham County
DWQ Project No. 05-0732v22
Mr. Bill Mumford
Assistant Vice President, NNP-Briar Chapel, LLC
16 Windy Knoll Circle
Chapel Hill, NC 27516
Subject Property: Briar Chapel - Phase 6 South
STORMWATER MANAGEMENT PLAN APPROVAL - MODIFIED
Dear Mr. Barron:
On January 11, 2008, the Division of Water Quality (DWQ) issued a revised 401 Water Quality
Certification to temporarily impact 339 linear feet of stream and 0.157 acre of 404 wetlands and to
permanently impact 1,666 linear feet of stream and 0.1590 acre of 404 wetlands in order to construct the
Briar Chapel Subdivision in Chatham County.
In order to meet Condition 10 of the 401 Certification for this project, a stormwater management plan for
Briar Chapel - Phase 6 South, dated July 15, 2011, was received on July 19, 2011.
The proposed stormwater management plan for Briar Chapel Phase 6 South has been reviewed and
satisfies the stormwater management condition of the 401 Water Quality Certification. You are required
to meet the following conditions:
The stormwater management system (consisting of one wet detention pond and all associated
appurtenances), all stormwater conveyances and the grading and drainage patterns depicted on
the plans, as approved by this office must be maintained in perpetuity. No changes to the
structural stormwater practices shall be made without written authorization from the DWQ. The
stormwater management structures shall have maintenance access to allow for the ability to
maintain the structures, and to perform corrective actions. The stormwater easements shall be
recorded to provide protection of the structures from potential alterations by future property
owners.
2. All operation and maintenance activities shall be followed as stipulated in the Operation and
Maintenance Agreement signed by you and notarized on July 12, 2011, and received in our office
on July 19, 2011.
Wetlands, Buffers, Stormwater, Compliance and Permitting Unit (WeBSCaPe)
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Location: 512 North Salisbury Street Floor 9 Raleigh, North Carolina 27603
Phone: [phone] FAX: [phone]
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
Mr. Bill Mumford
August 24, 2011
Page 2 of 2
3. The applicant and/or authorized agent shall provide a completed Certification of Completion
Form to the DWQ 401 Program within ten (10) days of the project completion (available at:
http•//portal ncdenr or web/wg/swp/ws/401/certsandpennits/apply/forms).
This letter completes the review of the DWQ under Section 401 of the Clean Water Act. If you have any
questions, please contact me at 919-807-6381.
Sincerely,
3V- C 01
Annette Lucas, PE
Wetlands, Buffers and Stormwater Compliance and
Permitting (WeBSCAPe) Unit
AML/aml
cc: Becky Fox, EPA
Monte Matthews, USACE, Raleigh
Lauren Witherspoon, DWQ Raleigh Regional Office
Chatham County Public Works Department, P.O. Box 1550, Pittsboro, NC 27312
Allison Weakly, Chair, Chatham County Environmental Review Board, 311 Boothe Road,
Chapel Hill, NC 27517
File Copy
050732v22BtiarChapel(Chatham)_S W_Approve. doc