NC0066516_Permit Modification_20100319

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
March 19, 2010
Mr. Chris Grimes
Utility Operations Director
Town of Fuquay-Varina
401 Old Honeycutt Road
Fuquay-Varina, North Carolina 27526
Subject: NPDES Permit Modification
Permit Number NCO066516
Terrible Creek WWTP
Wake County
Dear Mr. Grimes:
Dee Freeman
Secretary
Division personnel have reviewed and approved your request for modification of the subject permit. This
permit modification 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
October 15, 2007 (or as subsequently amended).
This permit modification authorizes the Town of Fuquay-Varina to add an additional 400,000 gallon
sludge storage tank to the Terrible Creek wastewater treatment facility. This tank will be located at the abandoned
Kenneth Branch wastewater treatment facility.
If any parts, measurement frequencies or sampling requirements contained in this modification 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 Mail Service
Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this permit shall be final and binding.
Please take notice that this permit is not transferable. 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, Coastal Area Management Act, or any other Federal or Local governmental permits which
may be required.
If you have any questions or need additional information, please do not hesitate to contact Maureen
Scardina of my staff at [phone].
Sincerely, ,
Coleen H. Sullins
cc: Central Files
NPDES Unit Files
Raleigh Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: wwwmwatermualitv.orci
An Equal Opportunity i Affirmative Action Employer
ne
NorthCarofina
Naturally

Permit NCO066516
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 Town of Fuquay-Varina is hereby authorized to:
1. Continue operation of an existing 1.0 MGD wastewater treatment system, located at the Terrible Creek
Wastewater Treatment Plant off NCSR 2751 (Hilltop Road) east of Fuquay-Varina in Wake County. The
facility includes the following components:
• Influent pump station
• Mechanical bar screen
• Solids cutter
• Flow sputter box
• Equalization basin
• Dual surge tanks
• Biological reactor
• Dual aeration basins
• Three clarifiers
• Three sludge holding tanks — (1 located offsite: Kenneth Branch)
• Three tertiary filters
• Totalizing flow meter
• LTV disinfection
• Post aeration
• Stand-by power
2. After receiving an Authorization to Construct from the Division for each phase of expansion and
submission of an approved engineer's certification for each construction phase, construct and operate a
waste treatment facility with an ultimate design capacity of 6.0 MGD.
3. Discharge treated wastewater from said treatment works at the location specified on the attached map
through outfall 001 into Terrible Creek, classified C-NSW waters in the Neuse River Basin.

Ohl:
EM
-AIL-
fown of Fuquay-Varina - Kenneth Creek WWTP
State GridMuad: Fuquay-Varina Latitude: 350 33' 48" N >.
E23SE Loneitude: 780 47'3V W
Receiving S Kenneth Creek Drainage Basin: Cape Fear
Stream Class: C Sub -Basin: 03-06-07 Noith
0 IMEMIN
T--------------
Facility Location
not to scale
NPDES Permit No. NCO028118
Wake County
--tMIM

TOWN OF FUQUAY-VARINA
401 Old Honeycutt Road
Ev7l Fuquay-Varina, North Carolina 27526
FUBUAY-VARINA, NORTH CAROLINA
February 2, 2010
Mr. Gil Vinzani
Division of Water Quality
Surface Water Protection Section — NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Town of Fuquay-Varina Terrible Creek Wastewater Treatment Facility
NPDES Permit NCO066516
Minor Permit Modification Request
Sludge Holding Tank Addition
Dear Mr. Vinzani:
E[N@[;=R0nF=j
FEB - 8 2010
DENR-WATER QUALITY
POINT SOURCE BRANCH
Per an e-mail I received Tuesday February 2, 2010 from Judy Garrett, DWQ Surface Water Protection
Section Raleigh Regional Office I am requesting a "minor permit modification" to NPDES permit number
NC0066516. The modification consists of adding an additional 400,000 gallons of sludge storage capacity for the
Terrible Creek wastewater treatment facility.
The proposed storage consists of an existing tank which was manufactured by Aqua Store Tank Systems
and related aeration appurtenances. The tank is constructed of metal panels bolted together with a side wall height
of nineteen feet and a concrete foundation with an inside diameter of sixty-two feet. Sludge mixing/digestion is
achieved using two blower assemblies with an air header assembly located on the tank floor. The storage tank is
located at the abandoned Kenneth Branch wastewater treatment facility, (see map attachment A).
It is our intention to utilize the tank at Kenneth Branch for emergency storage, when our land application
sites are unsuitable to apply sludge on due to inclement weather conditions and/or unsuitable soil conditions.
Sludge stored in the tank at Kenneth Branch will not be dewatered in such a way as to allow any supernatant to
enter the sewer collection system that is tributary to Harnett County.
If you have any questions or need additional information please let me know.
Sincerely,
Chris Grimes
Town of Fuquay-Varina
Utility Operations Director
Office — 919-753-1013
Mobile — 919-625-3524
cgrimes0fuguay-varina.org

Town of Fuquay-Varina
Terrible Creek WWTP
NPDES # NC0066516
Sludge Management Plan
The sludge produced by the treatment plant is stored in an aerobic digester, where it is further
stabilized and thickened. The thickened sludge is periodically removed for land application by a
contract sludge hauler.
The sludge is applied to permitted land application sites by the contract sludge hauler,
SYNAGRO.
The sludge is Class B, as determined by 40 CFR 503.32 (b) (2) (density of fecal coliform), and 40
CFR 503.33 (b) (4) (specific oxygen uptake rate).
As a result of inclement weather, sludge may be transported to the sludge storage tank located at
the abandoned Kenneth Branch wastewater treatment facility. Sludge stored in the tank at
Kenneth Branch will not be dewatered in such a way as to allow any supernatant to enter the
sewer collection system that is tributary Harnett County.
The Land Application Permit No. is WQ0020016. Permittee is Town of Fuquay-Varina