HomeMy WebLinkAbout20090900 Ver 1_Approval Letter_20090916M
A NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
September 16, 2009
DWQ EXP No. 09-0900
Orange County
Mr. Chris Jensen
Town of Chapel Hill
Stormwater Management Division
208 N. Columbus Street
Chapel Hill, NC 27514
Subject Property: Burning Tree Drive Drainage Improvements Project
Ut to Little Creek [030606, 16-41-1-15-(0.5), WS-IV, NSW]
Approval of 401 Water Quality Certifications and Authorization Certification per the Jordan Lake
Water Supply Watershed Riparian Buffer Protection Rules (15A NCAC 2B .0267) with Additional
Conditions - Modification
Dear Mr. Jensen:
This certification replaces the 401 and authorization certification you received on September 4, 2009. We
received a correspondence from Andy Williams from the U.S. Army Corps of Engineers regarding a
change in the required 404 Nationwide permits on September 16, 2009. You have our approval, in
accordance with the attached conditions and those listed below, to place fill within or otherwise impact 0
acres of wetland, 83 linear feet of perennial stream and 11,680 square feet of Zone 1 Jordan Water Supply
watershed protected riparian buffer, and 1,039 square feet of Zone 2 Jordan Water Supply watershed
protected riparian buffer, as described in your application dated August 28, 2009, and received by the
Division of Water Quality (DWQ) on August 31, 2009 with additional information received on
September 4, 2009 to construct the proposed drainage improvements project. After reviewing your
application, we have decided that the impacts are covered by General Water Quality Certification
Number(s) 3687 and GC3705). The Certification(s) allows you to use Nationwide Permit(s) NW 3 and
NW 18) when issued by the US Army Corps of Engineers (USACE). This letter shall also act as your
approved Authorization Certificate for impacts to the protected riparian buffers per 15A NCAC 213 .0267.
In addition, you should obtain or otherwise comply with any other required federal, state or local permits
before you go ahead with your project including (but not limited to) Erosion and Sediment Control, and
Non-discharge regulations. Also, this approval to proceed with your proposed impacts or to conduct
impacts to waters as depicted in your application shall expire upon expiration of the 404 or CAMA
Permit.
This approval is for the purpose and design that you described in your application. If you change your
project, you must notify us and you may be required to send us a new application. If the property is sold,
the new owner must be given a copy of this Certification and approval letter and is thereby responsible for
complying with all conditions. If total fills for this project (now or in the future) exceed one acre of
wetland or 150 linear feet of stream, compensatory mitigation may be required as described in 15A
NCAC 2H .0506 (h). This approval requires you to follow the conditions listed in the attached
certification and any additional conditions listed below.
401 Oversight(Express Review Permitting Unit
1650 Mail Service Center, Raleigh, North Carolina 27699-1650
Location: 2321 Crabtree Blvd., Raleigh, North Carolina 27604
Phone: 919-733-17861 FAX: 919-733-6893
Internet: http://h2o.enr,state.nc.us/ncwetlands/
NorthCarolina
Nahmallb,
An Equal Opportunity 1 Affirmative Action Employer
Town of Chapel Hill
DWQ EXP# 09-0900
Page 2 of 4
September 16, 2009
The Additional Conditions of the Certification are:
1. Impacts Approved
The following impacts are hereby approved as long as all of the other specific and general
conditions of this Certification (or Isolated Wetland Permit) are met. No other impacts are
approved including incidental impacts:
Impact Type Amount Approved nits Plan Location or Reference
Stream (perennial) 83 (linear feet) August 28, 2009 PCN . 6 of 12
Riparian buffer (Zone 1) 11,680 (square feet) August 28, 2009 PCN . 8 of 12
Riparian buffer Zone 2) 1,039 (square feet August 28, 2009 PCN . 8 of 12
2. No Waste, Spoil, Solids, or Fill of Any Kind
No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas beyond
the footprint of the impacts depicted in the Pre-Construction Notification and authorized by this
approval letter. All construction activities, including the design, installation, operation, and
maintenance of sediment and erosion control Best Management Practices, shall be performed so
that no violations of state water quality standards, statutes, or rules occur.
No Sediment and Erosion Control Measures in Wetlands and Waters
Sediment and erosion control measures shall not be placed in wetlands or waters without prior
approval from the Division. If placement of sediment and erosion control devices in wetlands
and waters is unavoidable, design and placement of temporary erosion control measures shall not
be conducted in a manner that may result in dis-equilibrium of wetlands or stream beds or banks,
adjacent to or upstream and down stream of the above structures. All sediment and erosion
control devices shall be removed and the natural grade restored within two (2) months of the date
that the Division of Land Resources or locally delegated program has released the project.
Erosion and sediment control practices must be in full compliance with all specifications governing
the proper design, installation and operation and maintenance of such Best Management Practices
in order to protect surface waters standards:
a. Erosion and sediment control measures for the project must be designed, installed, operated,
and maintained in accordance with the most recent version of the North Carolina Sediment
and Erosion Control Planning and Design Manual.
b. Design, installation, operation, and maintenance of the sediment and erosion control
measures must be such that they equal, or exceed, the requirements specified in the most
recent version of the North Carolina Sediment and Erosion Control Manual. The devices
shall be maintained on all construction sites, borrow sites, and waste pile (spoil) projects,
including contractor-owned or leased borrow pits associated with the project.
c. Sufficient materials required for stabilization and/or repair of erosion control measures and
stormwater routing and treatment shall be on site at all times.
Protective Fencing
The outside buffer, wetland or water boundary and along the construction corridor within these
boundaries approved under this authorization shall be clearly marked with orange warning fencing
(or similar high visibility material) for the areas that have been approved to infringe within the
buffer, wetland or water prior to any land disturbing activities to ensure compliance with the
relevant General Certifications.
Town of Chapel Hill
DWQ EXP# 09-0900
Page 3 of 4
September 16, 2009
6. Diffuse Flow
All constructed stormwater conveyance outlets shall be directed and maintained as diffuse flow at
non-erosive velocities through the protected stream buffers such that it will not re-concentrate
before discharging into a stream as identified within 15A NCAC 2B .0267 (8). If this is not
possible, it may be necessary to provide stormwater facilities that are considered to remove
nitrogen. This may require additional approval from this Office.
7. Notification of Construction
The applicant and/or authorized agent shall contact the DWQ Express Review Program in writing
at the letterhead address within ten (10) days of the commencement of construction.
8. Certificate of Completion
Within thirty (30) days of the completion of all work approved within the 401 Water Quality
Certification or applicable Buffer Rules, and any subsequent modifications, the applicant is
required to return the attached certificate of completion to the 401 Oversight/Express Review
Permitting Unit, North Carolina Division of Water Quality, 1650 Mail Service Center, Raleigh,
NC, 27699-1650.
The applicant/permittee and their authorized agents shall conduct all activities in a manner consistent with
State water quality standards (including any requirements resulting from compliance with §303(d) of the
Clean Water Act), and any other appropriate requirements of State and Federal Law. If the Division
determines that such standards or laws are not being met, including failure to sustain a designated or
achieved use, or that State or Federal law is being violated, or that further conditions are necessary to
assure compliance, then the Division may reevaluate and modify this General Water Quality Certification.
Violations of any condition herein set forth may result in revocation of this Certification and may result in
criminal and/or civil penalties. The authorization to proceed with your proposed impacts or to conduct
impacts to waters as depicted in your application and as authorized by this Certification, shall expire upon
expiration of the 404 or CAMA Permit.
If you do not accept any of the conditions of this Certification (associated with the approved wetland or
stream impacts), you may ask for an adjudicatory hearing. You must act within 60 days of the date that
you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 150B of
the North Carolina General Statutes to the Office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, NC, 27699-6714. This certification and its conditions are final and binding unless you ask for a
hearing.
Any disputes over determinations regarding this Authorization Certificate (associated with the approved
buffer impacts) shall be referred in writing to the Director for a decision. The Director's decision is
subject to review as provided in Articles 3 and 4 of G.S. 150B.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water
Act and the Jordan Lake Water Supply Watershed Riparian Buffer Protection Rule as described within
15A NCAC 2B .0267. If you have any questions, please telephone Lia Myott Gilleski or Joseph Gyamfi
at 919-733-1786.
Sincerely,
Coleen H. Sullins
Town of Chapel Hill
DWQ EXP# 09-0900
Page 4 of 4
September 16, 2009
CHSIcbelmg
Enclosures: Certificate of Completion
GC3687 and GC3705
cc: Andy Williams, USACE Raleigh Regulatory Field Office
Lauren Witherspoon, DWQ Raleigh Regional Office
File Copy
Ms. Cindy Carr, Mulkey Engineers & Consultants, Inc., P.O. Box 33127, Raleigh, NC 27636
File: 090900BumingTreeDrDrainageimprovements(Orange)EXP+401(N Ws)JBRAuthMOD.doc