NC0075078_Permit Issuance_20040107

©n
NCDENR
Mr. Bob Alexander
Wilkes County Airport
640 Wood Wallace Drive
North Wilkesboro, North Carolina 28659
Dear Mr. Alexander:
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
January 7, 2004
Subject: Issuance of NPDES Permit NCO075078
Wilkes County Airport WWTP
Wilkes County
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North
Carolina and the U.S. Environmental Protection Agency dated May 9, 1994 (or as subsequently amended).
This final permit includes no major changes from the draft permit sent to you on November 18,
2003. This permit includes a TRC limit that will take effect on August 1, 2005. If you wish to install dechlorination
equipment, the Division has promulgated a simplified approval process for such projects. Guidance for approval of
dechlorination projects is attached.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to
you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of
this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina
General Statutes, and filed with the Office of Administrative Hearings (6714 Mad Service Center, Raleigh, North
Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain
other permits which may be required by the Division of Water Quality or permits required by the Division of Land
Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Charles Weaver at telephone number (919)
733-5083,extension 511.
Sincerely,
ORIGINAL SIGNED BY
Tam Belnick
Alan W. Klimek, P.E.
cc: Central Files
Winston-Salem Regional Office/Water Quality Section
NPDES Unit
N. C. Division of Water Quality / NPDES Unit Phone: [phone]
1617 Mail Service Center, Raleigh, NC 27699-1617 fax: [phone]
Internet h2o.enr.slate.nc.us DENR Customer Service Center. 1 800 623-7748

Permit NCO075078
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations
promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water
Pollution Control Act, as amended, the
County of Wilkes
is hereby authorized to discharge wastewater from a facility located at the
Wilkes County Airport WWTP
640 Wood Wallace Drive
North of North Wilkesboro
Wilkes County
to receiving waters designated as an unnamed tributary to Rock Creek in the Yadkin -Pee Dee River Basin in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II,
III and IV hereof.
This permit shall become effective February 1, 2004.
This permit and authorization to discharge shall expire at midnight on September 30, 2008.
Signed this day January 7, 2004.
ORIGINAL SIGNED BY
Tom Belmick
Alan W. Klimek, P.E.I. Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO075078
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this
permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive
authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and
provisions included herein.
The County of Wilkes is hereby authorized to:
1. Continue to operate an existing 0.0075 MGD activated -sludge wastewater treatment
system with the following components:
♦ 2,500-gallon surge tank with pump
♦ 5,000-gallon aeration basin [extended aeration]
♦ Mechanically -cleaned clarifier
♦ Tablet chlorine disinfection
♦ 2,500-gallon aerated sludge digester
♦ Flow meter box
The system is located at the Wilkes County Airport WWTP, north of North Wilkesboro
off Wood Wallace Drive in Wilkes County.
2. Discharge from said treatment works at the locations specified on the attached map into
an unnamed tributary to Rock Creek, currently a class C stream in the Yadkin -Pee Dee
River Basin.

Quad: Roaring River, N.C. Facility
NCO075078 :.
Subbasin: 30701 Location
Latitude: 36°13'31
Wilkes County Airport WWTP"
Longitude: 81" 06'18"
Receiving Stream: UT Rock Creek L SCALE 1:24000
Stream Class: C NOlti

Permit NCO075078
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on February 1, 2004 and lasting until expiration, the Permittee is authorized to
discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified
below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location
Flow
0.0075 MGD
Weekly
Instantaneous
Influent or Effluent
BOD, 5-day (204C)
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
Total Suspended Solids
30.0 mg/L
45.0 mg/L
Weekly
Grab
Effluent
NHs as N
(April 1 - October 31
6.0 mg/L
30.0 mg/L
Weekly
Grab
Effluent
NHs as N
November 1 — March 31
22.2 mg/L
35.0 mg/L
Weekly
Grab
Effluent
Fecal Coliform (geometric mean)
200/100 ml
400/100 ml
Weekly
Grab
Effluent
Total Residual Chlorines
28 Ng/L
21Week
Grab
Effluent
Temperature
Daily
Grab
Effluent
Total Nitrogen
NO2+NO3+TKN
Quarterly
Grab
Effluent
Total Phosphorus
Quarterly
Grab
Effluent
pH2
Weekly
Grab
Effluent
di/Footnotes:
�V� 1. ITh* takes
effect, tl)e-�—ermitteq shall tp6nitor'F$C Switl'i no
2. The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

W 11Le s
PUBLIC NOTICE
STATE OF NORTH CAROLINA
ENVIRONMENTAL MANAGEMENT
COMMISSION/NPDES UNIT
1617 MAIL SERVICE CENTER
RALEIGH, N.C. 27699-1617
NOTIFICATION OF INTENT TO ISSUE
A NPDES WASTEWATER PERMIT
On the basis of thorough staff review
and application of, N.C-. Oaneral$tatuta
143.21, Public law 92-500 and other
lawful standards and regulations, the
North Carolina Environmental
Management Commission proposes to
issue a National Pollutant Dischar®®6
Elimination System (NPDES)
wastewater discharge permit to the
person(s) listed below effective 45 days
from the publish date of this nofice.
Written comments regardingg - the
proposed permit will be acceptad until
30 days after the publish date of this
notice. All comments received prior to
that date are considered in the final
determinations regarding the proposed
permit. The Director of the N.C. Division
of Water Quality may decide to hold a
public meeting for the proposed permit
should the Division receive a significant
degree of public interest.
Copies of the draft permit and other
supporting information on file used to
determine conditions present in the draft
permit are available upon request and
payment of the costs of reproduction.
Mail comments and/or requests for
information to the N.C. Division of Water
Quality at the above address or call Ms.
Valery Stephens at [phone],
extension 520. Please include the
NPDES permit number (attached) in any
communication. Interested persons may
also visit the Division of Water Quality at
512 N. Salisbury Street, Raleigh, N.C.,
27604-1148 between the hours of 8:00
a.m. and 5:00 p.m. to review information
on file.
The County of Wilkes has applied for
renewal of NPDES permit NCO075078
for the Wilkes County Airport WWTP.
This permitted facility discharges treated
wastewater to an unnamed tributary to
Rock Creek in the Yadkin -Pee Dee
3asin. Currently ammonia nitrogen
)tal residual chlorine are water
limited. This discharge may affect
allocations in this portion of Rock
11-21-1t(F)

NORTH CAROLINA
FORSYTH COUNTY
AFFIDAVIT OF PUBLICATION
Before the undersigned, a Notary Public of said County and State, duly
commissioned, qualified, and authorized by law to administer oaths, personally
appeared D.H. Stanfield, who being duly sworn, deposes and says: that he is
Controller of the Winston-Salem Journal, engaged in the publishing of a newspaper
known as Winston-Salem Journal, published, issued and entered as second class mail
in the City of Winston-Salem, in said County and State: that he is authorized to
make this affidavit and sworn statement: that the notice or other legal advertisement,
a true copy of which is attached hereto, was published in Winston-Salem Journal on
the following dates:
November 22, 2003
and that the said newspaper in which such notice, paper document, or legal
advertisement was published was, at the time of each and every such publication, a
newspaper meeting all the requirements and qualifications of Section 1-597 of the
General Statues of North Carolina and was a qualified newspaper within the meaning
of Section 1-597 of the general statues of North Carolina.
This 24th day of November, 2003 \
(signature of personam king affidavit)
Sworn to and subscribed before me, this 24th day of N tuber, 2003
Nota ublic
My Commission expires: September 28, 2005
OFFICIAL SEAL
[:�i"
Pu61ic, North CarolinaUNTY OF FORSYTHMALEY OHVSONpires �*1 '4P&..r '

imap: //[e-mail]:143/f ..
Subject: Wilkes County Airport
From: George Smith <[e-mail]>
Date: Wed, 26 Nov 2003 15:00:56 -0500
To: Charles Weaver <[e-mail]>
Charles,
Concerning the draft permit NCO075078 for Wilkes County Airport, I do not have any
concerns or comments. Recommend that permit be issued.
George Smith
NC DENR Winston-Salem Regional Office
Division of Water Quality
585 Waughtown Street
Winston-Salem, NC 27107
Voice: [phone]
FAX: [phone]
1 of 1 12/1/2003 7:03 AM

TRC Limit Calculation
NCO075078
Total Residual Chlorine
TRC standard requires limits of
1 7-28 pg/L
11 /18/2003

NPDES PERMIT APPLICATION - SHORT FORM D
To be pled only by dischargers of 100% domestic wastewater (<1 MGD (low)
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
North Carolina NPDES I'err»it Number I NCUU
(if known)
Please prinj or type
I. Mailing address of applicant/permittee:
Facility Name
Owner Name
Street Address
city
sate
•1 elephone Number
Fax Number
e-mail Address
C G'[l
!� �ovo
(33 ) �9/,q- o
(3 3
,2. Location of facility producing discharge:
Name (If different from above)
Facility Contact Person
Street Address or State Road
City / Zip Code
County
Telephone Number
q s.
(3 34) 1,940 a o
3. Reason for application:
Expansion/Modification * Existing Unperinitted Discharge
Renewal arg
�- New Facility
* Please provide a description of the expat'simi/modiljcation:
4. Description of the existing treatment faciIlties (list all Installed components with
capacities):
r-/4 12 11.11 ;;1�1441VT- 'IEW
,V e
�C.✓�r� /9 RAT/J ,,V
.v •
Page 1 of 2
Version 6W

NPDES PERMIT APPLICATION - SHORT FORM D
To be filed only by dischargers of 100% domestic wastewater (< I MGD flow)
5. Description of wastewater (check all that apply):
Tyne of Facillty Generating Wastewater
Industrial
Commerclal
Residential
School
Other r''! % Pcc r
Number of Employees
Number of Einployees
Number of homes
Number of Students/Staff
Describe the source(s) of wastewater (example: subdivision. mobile home park, etc.):
1
J1
SJY1A� r/h�NA L emu, %�.�'�
6. N��n�bc�r of scNarsitc wa�sicwr�lr.r clisrh:�rkc l�il�cs (w:�Qlcwnl�r ot�lfalls):
N
7. 1f the facility has multiple discliarge out falls. record the source(s) of wastewater for each
outfall:
V /q
8. Name of receiving stream(s) (Provide a map showing the exact locatio of each outfall):
.LL 1 l �►�j
I certify that I am familiar with the information contained In the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
- %3a/3 Alcyjq woa/t
Printed Name of Person Signing '
iM
Title
Signature of
r/-2.1•v
Date Signed
North Carolina General Statute 143.215.6(b)(2) provides that: Any person who knowingly makes any false statement representation, or
ce¢ification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the
Environmental Management Commission Implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any
recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental
Management Commission Implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $10,000, or by
Imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine of not more than $10,000 or
imprisonment not more than 6 years, or both for a similar offense.)
Page 2 of 2
Version 6g9

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WILKFIS COUNTYAIRPORT WWTP
SLUDGE MANAGEMENT PLANT
THE AIRPORT WW'I'P IS A SMALL, ACTIVATED SLUDGE
PLANTWITLI A VERY LOW I7LOW. DISPOSAL OF SLUDGE
WOULD BETAKEN CARE Or BY ONE OF -THE LOCAL SEPTIC
TANK PUMPING COMPANIES.
.IA STEELMA / ORC