20180654 Ver 1_Approval Letter_20180619

ROY COOPER
a<» �er,u,r
MICHAEL S. REGAN
Seeretro�r
Environmenfu( LINDA CULPEPPER
QUQILLy ln�rriiu Dfrr�'�or
June 19. 2018
Washington County
NCDWR Project No. 20180654
Plymouth Municipal Airport
APPROVAL oPA01 WATER QUAUTY CERTIFICATION with ADDITIONAL CONDITIONS
Mr. Curtis Potter
P.O. Box 1007
Plymouth, NC 27962
Dear Mr. Potter:
You have our approval, in accordance with the conditions listed below, for the following impacts for the purpose of
making improvements to the Plymouth Municipal Airport (PMZ) in Washin�[on County:
Wetland and O�en Wa[er Im acts in the Roanoke River Basin
Site Wetland Fill (ac) Open Wa[er
ac
PMZ 0.13 03
The project shall be constructed in accordance with your application da[ed received April 24, 2018. After reviewing
your application, we have decided that these impacts are covered by General Wa[er Quality Certification Number
4135, This certification corresponds to the Nationwide Permit 14 issued by the Corps of Engineers. In addi[ion, you
should acquire any other federal, stare or local permits before you proceed with your project including (bu[ no[
limited to) Sediment and Erosion Con[rol, Non-Discharge and Water Supply Watershed regula[ions. This approval
will expire wi[h the accompanying 404 pemiit.
This approval is valid solely for the purpose and design described in your application (unless modified below).
Should your project change, you must notify the NCDWR and submi[ a new application. If[he proper[y is sold, the
new owner must be given a copy of this Certification and approval letter, and is [hereby responsible for complying
with all the conditions. If total wedand fills for this project (now or in the future) exceed one acre, or of ro[al
impacts to streams (now or in the fuwre) exceed I i0 linear fzet, compensatory mitigation may be required as
described in I SA NCAC ?H .Oi06 (h) (6) and (7). Addi[ional buffer impacts may require compensatory mitigation
as described in I SA NCAC 26.0259. For this approval to remain valid, you must adhere to the conditions lisred in
the anached cenification(s) and any additional wnditions listed below.
Condition(s) of Certification:
lhe issuance of this certitication does not exempt the Permittee from complying with any and aIl statutes, rules,
regulations, or ordinances [hat may be imposed by other governmen[ agencies (i.e. local, state, and federal) havin�
jurisdiction, including but noi limited to applicable buffer rules. stormwater management rules, soil erosion and
sedimentation control requirements, e[c.
The Permittee shall ensure that the final design drawings adhere to the pemiit and to the permit drawings submitted
for approvaL [ISA NCAC 02H A507(c) and I�A NCAC 02H .0506 (b)(2) and (c)(2)]
All work in or adjacent to stream waters shall be conducted in a dry work area. Approved BMP measures from the
most current version of NCDOT Construction and Maintenance Activities manual such as sandbags, rock berms,
cofferdams and other diversion structures shall be used to prevent excavation in Flowin� watec [ISA NCAC
O3HA506(b)(3) and (c)(3)]
Stare o(Nonh Carolina I F.nvirommental Qualit}�
1617 Mad .S'ervice Center I Raleigh, Nonh Carolina 2769�>-1617

Unless otherwise approved in this certification, placement of culverts and other structures in open waters and
streams shall be placed below the elevation of the streambed by one foot for all culverts with a diameter greater
than 48 inches, and 20 percent of the culvert diameter for culverts having a diameter less than 48 inches, to allow
low flow passage of water and aquatic life. . Design and placement of culverts and other structures including
temporary erosion control measures shall not be conducted in a manner that may result in dis-equilibrium of
wetlands or streambeds or banks, adjacent to or upstream and downstream of the above structures. The applicant is
required to provide evidence that the equilibrium is being maintained if requested in writing by NCDWR. If this
condition is unable to be met due to bedrock or other limiting features encountered during construction, please
contact NCDWR for guidance on how to proceed and to determine whether or not a permit modification will be
required. [15A NCAC 02H.0506(b)(2)] _
5. If concrete is used during construction, a dry work area shall be maintained to prevent direct contact between
curing concrete and stream water. Water that inadvertently contacts uncured concrete shall not be discharged
to surface waters due to the potential for elevated pH and possible aquatic life and fish kills. [15A NCAC
02B.0200]
6. The outside buffer, wetland or water boundary located within the construction corridor approved by this
authorization shall be clearly marked by highly visible fencing prior to any land disturbing activities. Impacts to
areas within the fencing are prohibited unless otherwise authorized by this certification. [15A NCAC 02H.0501
and .0502]
7. During the construction of the project, no staging of equipment of any kind is permitted in waters of the U.S.,
or protected riparian buffers. [15A NCAC 02H.0506(b)(2)]
8. All mechanized equipment operated near surface waters must be regularly inspected and maintained to "prevent
contamination of stream waters from fuels, lubricants, hydraulic fluids, or other toxic materials. [15A NCAC
02H.0506(b)(3)]
9. 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 [15A NCAC 02H.0506(b)(3) and (c)(3)]:
a. The 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 D,esign Manual.
b. The 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. For borrow pit sites, the erosion and sediment control measures must be designed, installed, operated, and
maintained in accordance with the most recent version of the North Carolina Surjace Mining Manual.
d. The reclamation measures and implementation must comply with the reclamation in accordance with the
requirements of the Sedimentation Pollution Control Act.
10. Sediment and erosion control measures shall not be placed in wetlands or surface waters or within 5 feet of the
top of bank without prior approval from DWR. [15A NCAC 02H.0506(b)(3) and (c)(3)]
11. Erosion control matting in riparian areas shall not contain a nylon mesh grid which can impinge and entrap
small animals. Matting should be secured in place by staples, stakes; or wherever possible live stakes of native
trees. Riparian areas are defined as a distance 25 feet from top of stream bank. [15A NCAC 02B.0224, .0225]
12. All fill slopes located in jurisdictional wetlands shall be placed at slopes no flatter than 3:1, unless otherwise
authorized by this certification. [15A NCAC 02H.0506(b)(2)]
13. The use of rip-rap above the Normal High Water Mark shall be minimized. Any rip-rap placed for stream
stabilization shall be placed in stream channels in such a manner that it does not impede aquatic life passage.
[15A NCAC 02H.0506(b)(2)]
14. Native riparian vegetation must be reestablished in the riparian areas within the construction limits of the project
by the end of the growing season following completion of construction. [15A NCAC 02B.0506(b)(2)]

I5. Discharging hydroseed mixtures and washing out hydroseeders and other equipment in or adjacent ro surface waters
is prohibited. [15A NCAC 02H.0506(b)(3)]
16. The permittee and its authorized agenu shall conduct iu activities in a manner consistent with State wa[er qualiry
standards (including any requiremenu resulting from compliance with §303(d) of the Clean Water Act) and any
other appropriate requ'vements of State and Federal law. If the NCDWR determines [hat such standards or laws
are not being met (including the failure ro sustain a designated or achieved use) or that State or federal law is being
violated, or that further conditions are necessary to assure compliance, the NCDWR may reevaluate and modify
this certification. [ 15A NCAC 02B.0200]
17. The Permittee shall repoR any violations of this certification to the Division of Watet Resources within 24 hours
of discovery. [ I SA NCAC 028.0506(bx2)]
18. Upon completion of the project (including any impacts at associated borrow or waste sites), the NCDOT Division
Engineer shall complete and retum the enclosed "Certification of Completion Form" to notify the NCDWR when
all work included in the 401 Certification has been completed. [15A NCAC 02H.0502(�]
19. A copy of this Water Qualiry Certification shall be maintained on the consiruction site at all times. In addition, the
Water Quality Certification and all subsequent modifications, if any, shall be maintained with the Division Engineer
and the on-site project managec [15A NCAC 02H .0507(c) and 15A NCAC 02H .0506 (bx2) and (c)(2)]
If you wish to contest any statement in the attached Certification you must file a petition for an administrative
hearing. You may obtain the petition form from the office of Administrative heazings. You must file the petition
with the office of Administrative Hearings within sixty (60) days of receipt of this notice. A petition is considered
filed when it is received in the office of Administrative Hearings during normal office hours. The Office of
Administrative Hearings accepts filings Monday through Friday between the hours of 8:OOam and S:OOpm, except
for official state holidays. The original and one (1) copy of the petition must be filed with the Office of
Administrative Hearings.
The petition may be faxed-provided the original and one copy of the dowment is received by the Office of
Administrative Hearings within five (5) business days following the fa�ced transmission.
The mailing address for the Office of Administrative Hearings is:
Office of Administrative Hearings
6714 Mail Service Center
Raleigh, NC 27699-6714
Telephone: [phone], Facsimile: [phone]
A copy of the petition must also be served on DEQ as follows:
Mc Bill F. Lane, General Counsel
Departrnent of Environmental Quality
1601 Mail Service Center
7'his letter completes the review of the Division of Water Resources under Section 401 of the Clean Water Act. If you
have any questions, please contact Garcy Ward at [phone]or [e-mail].
Sincerely,�
G� ����
L' da Culpepper, Interim D'vector
Division of Water Resources
Electronic copy only distribu[ion:
Billy Standridge, US Army Corps of Engineers, Washington Field Office
Clement Riddle, ClearWater Environmental Consultants, Inc., [e-mail]
Garcy Ward, NC Division of Water Resources Washington Regional Office
File Copy

Environmental
QUQ�%ty
NCDWR Project No.:
Applicant:
Project Name:
Date of Issuance of 4U1 Water Quality Certification:
Coun[v:
ROY COOPER
c;orrnior
MICHAEL S. REGAN
�«,���r����r
LINDA CULPEPPER
Lnrrnri I)�rr<'iur
Certifica[e of Completion
Upon completion ofall work approved within the 401 Warer Quality Certitication or applicable Buffer Rules, and
any subsequent modifications, the applicant is required to return this certificate to the 401 'iransportation Permittine
Unit. North Carolina Division of Wa[er Resources, 1617 Mail Service Center. Raleigh. NC. 27699-1617. This form
may be remrned to NCDWR by Ihe applicant, the applicant's authorized agent, or the projec[ engineer. It is not
necessary to send certificates from all of [hese.
Applica�t!'.s Cerlificafiox
I, , hereby state diat, m the best oFmy abilities, due care and diligence
was used in the observation of the construction such that the constructio� was observed to be built within substantial
compliance and intent ofthe 401 Water Quality Certification and Buffer Rules, the approved plans and
specifications, and other supportin� materials.
Signature: Date:
,4genPs Certificalion
I, , hereby state that, to the best of my abilities, due care and diliaence
was used in the observa[ion of the cons[ruc[ion such [hat Ihe construction was observed [o be built wi[hin substan[ial
compliance and intent of [he 401 Water Quality Certification and Bufler Rules, the approved plans and
specifications, and other supportin, materials.
Si�nature:
Engineei's Cenifrcatiae
Partial Final
I, . as a duly registered Professional En,ineer in the Stare of North
Carolina, having been authorized to observe (periodically, wcekly, full time) [he construc[ion of thc project for the
Permittee hereby state that, to the best of my abilities, due care and dilisence was used in the observation of the
construction such that the construction was observed to be built within substantial compliance and intent of the 401
Water Qualiry Certification and Buffer Rules, the approved plans and specifications, and other supporting marerials.
Signamre
Date
Registra[ion No.
Sta�e ol North Caro6na I F.nvironmental Quahty
1617 Mail Service Czn[er I Raleigh. North Caro�ina 27699-16 1 7