20070231 Ver 1_Approval Letter_20070319

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
March 19, 2007
DWQ# 07-0231
Guilford Coxfnty
CERTIFIED MAIL: 7004 2510 0002 2177 7157
RETURN RECEIPT REQUESTED
Mr. Mickie Elmore
Piedmont Triad Airport Authority
P. O. Box 35445
Greensboro, NC 27425
APPROVAL of 401 Water Quality Certification with Additional Conditions
Dear Mr. Elmore:
The Piedmont Triad Airport Authority (PTAA) has our approval, in accordance with the attached conditions,
to place permanent fill in 100 linear feet of perennial stream in order to construct a road crossing for access
into PTAA property located at the intersection of Radar Road and the proposed extension of Ballinger Road in
Greensboro, Guilford County, as described in your application received by the North Carolina Division of
Water Quality (NCDWQ) on February 5, 2007. After reviewing your application, we have determined that
this fill is covered by General Water Quality Certification Number 3404, which can be viewed on our web site
at http://www.ncwaterquality.orb/wetlands.html. .This Certification allows you to use Nationwide Permit
Number 14 when it is issued by the U.S. Army Corps of Engineers. In addition, you should secure any other
applicable federal, state or local permits before you proceed with your project, including (but not limited to)
those required by Sediment and Erosion Control, Non-Discharge, and Water Supply Watershed regulations.
Also, this approval will expire when the accompanying 404 permit expires unless otherwise specified in the
General Certification.
This approval is valid only for the purpose and design that you have described in your application. If you
change your project, you must notify us in writing, and you may be required to send us a new application for a
new certification. If the property is sold, the new owner must be given a copy of the Certification and
approval letter and is thereby responsible for complying with all conditions. If total wetland fill for this
project (now or in the future) exceeds one acre, or total fill to perennial streams equals or exceeds 150 linear
feet, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h). For this approval
to be valid, you must follow the conditions listed in the attached certification, as well as the additional
conditions listed below:
The following impacts are hereby approved as long as all other specific and general conditions of this
Certification are met. No other impacts, including incidental impacts, are approved:
No~ithCarolina
Naturally
North Carolina Division of Water Quality
Wetlands Certification Unit 1650 Mail Service Cerner Raleigh, NC 27699-1650 Phone [phone] FAX [phone]
2321 Crabtree Blvd. Raleigh, NC 27604-2260 Internet http:llwww.ncwatergualiN.org
Customer Service Number: 1-877-623-6748
An Equal OpportunitylAffirmative Action Employer- 50% Recycled110% Post Consumer Paper

Mr. Mickie Elmore
Page 2, DWQ# 07-0231
March 19, 2007
Amount A roved Plan Location or Reference
Streams 100 linear feet Unnamed tributary to Horsepen Creek located on Radar Road at its
intersection with the proposed extension of Ballinger Road in
Greensboro, Guilford County, as depicted on the site plan included
with the a lication

2. A final, written stormwater management plan must be approved in writing by the Central Office of the
Wetlands/401 Certification Unit before the impacts specified in this authorization occur, per condition
No. 6 in General Certification 3404. The stormwater management plan must include plans and
specifications for stormwater management facilities that are appropriate for surface waters classified as
Class WS-IV and designed to remove, at a minimum, 85% Total Suspended Solids according to the
most recent version of the NCDENR stormwater Best Management Practices Manual. These facilities
must be designed to treat the runoff from the entire project, unless otherwise explicitly approved by the
Division of Water Quality. Also, before any new permanent building is occupied at the subject site, the
facilities (as approved by this Office) shall be constructed and operational, and the stormwater
management plan (as approved by this Office) shall be implemented. The structural stormwater practices
as approved by this Office, as well as drainage patterns, must be maintained in perpetuity. No changes
to the structural stormwater practices shall be made without written authorization from the Division of
Water Quality. This stormwater management plan must be submitted to the Central Office of the
Wetlands/401 Certification Unit in Raleigh within 60 days of receiving this letter.
3. Appropriate sediment and erosion control measures which equal or exceed those outlined in the most
recent version of the North Carolina Erosion and Sediment Control Planning and Design Manual or the
North Carolina Surface Mining Manual (available from the Division of Land Resources at NCDENR
regional offices or the central office), whichever is more appropriate, shall be designed, installed and
maintained properly to assure compliance at all times with the North Carolina water quality standards
that are applicable to Class WS-IV waters as described in 15A NCAC 02B .0216 Fresh Surface Water
Quality Standards For Class WS-IV Waters. These measures must be maintained on all construction
sites, borrow sites, and waste pile (spoil) sites, including contractor owned and leased borrow pits,
which are associated with this project.
4. Sediment and erosion control measures shall not be placed in wetlands or waters to the maximum extent
practicable. If placement of sediment and erosion control measures in wetlands or waters is
unavoidable, they shall be removed and the natural grade restored within six months of the date that the
project is completed or, if applicable, within six months of the date that the project is released by the
North Carolina Division of Land Resources.
5. No waste, spoils, 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. 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.

~ Mr. Mickie Elmore
Page 3, DWQ# 07-0231
' March 19, 2007
6. Where riprap is required for energy dissipation and scour protection, it shall be limited to the minimum
dimensions specified by appropriate engineering calculations. Riprap may only be used below the
normal high water level. The original grade and elevation of the stream's cross-section must be
maintained. Riprap placed in the stream bottom must be inserted into the bottom matrix to a depth
sufficient to provide the thickness of riprap• required for scour protection. The elevation of the stream
bottom must not be increased by the placement of riprap. Placement of riprap must not result in
destabilization of the streambed or banks upstream or downstream of any crossing.
7. All construction activities associated with this project shall minimize built-upon surface area, direct
stormwater runoff away from surface waters, and incorporate best management practices to minimize
water quality impacts. If concrete is used with any fill material, it shall not be allowed to come in
contact with surface waters until it has cured. If any stormwater must be collected for discharge into a
stream channel, it shall not enter the stream as a point source, but shall be slowed and discharged as
sheet flow prior to entering the riparian buffer on either side of the stream.
8. Upon finishing the project, the Applicant shall fill out and return the enclosed "Certificate of
Completion" to notify the NCDWQ when all work included in the §401 Certification has been
completed. This certificate should be returned to the Winston-Salem Regional Office of the NCDWQ at
the address listed on the form. Along with the Certificate of Completion, please send photographs
upstream and downstream of the culvert site to document correct installation.
If you do not accept any of the conditions of this certification, 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, N.C. 27699-6714. This certification and its conditions are final
and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act.
If you have any questions, please telephone Daryl Lamb in the NCDWQ Winston-Salem Regional Office at
336-771-4959 or Ian McMillan in the Wetlands/401 Central Office in Raleigh at 919-715-4631.
Sincerely,
~-~ ~o~
Alan W. Klimek, P.E.
AWK/cdl
Attachments
cc: Mr. Andy Williams, U. S. Army Corps of Engineers, Raleigh Regulatory Field Office
NCDWQ, Winston-Salem Regional Office
Central Files
Wetlands/401 File Copy
Mr. Richard B. Darling, C.E., Baker and Associates, 7800 Airport Center Drive, Suite 100, Greensboro,
NC 27409