NC0066516_Authorization to Construct_20160205

r PAT MCCRORY
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DONALD R. VAN DER VAART
A
Sec relary
Water Resources S. JAY ZIMMERMAN
ENVIRONMENTAL QUALITY
February 5, 2016 Director
Mr. Jay Meyers
Public Utilities Director
Town of Fuquay-Varina
401 Old Honeycutt Road
Fuquay-Varina, North Carolina 27526
SUBJECT: Authorization to Construct
A to C No. 066516A03
Town of Fuquay-Varina
Terrible Creek WWTP
Dear Mr. Meyers:
A letter of request for an Authorization to Construct was received December 16, 2015, by
the Division of Water Resources (Division), and final plans and specifications for the subject
project have been reviewed and found to be satisfactory. Authorization is hereby granted for the
construction of modifications to the existing 1.0 MGD Terrible Creek WWTP, with discharge of
treated wastewater into the Terrible Creek in the Neuse River Basin.
This authorization results in an increase in design and permitted capacity to 3.0 MGD, and
is awarded for the construction of the following specific modifications:
Demolition of existing influent wet wells, existing clarifiers # 1, #2, #3, existing tertiary
filters #1, #2, #3, existing blowers, existing chemical storage facility, existing post aeration
basin, existing UV disinfection system, and other surplus components; refurbishment of
existing treatment plant #1 and #2 basins to two (2) 0.383 MG EQ basins, piping, and
controls; refurbishment of treatment plant #3 basin to one (1) 0.682 MG EQ basin, piping,
and controls;installation of new influent pump station with 18 MGD peak hourly mechanical
and manual coarse screen system and incline conveyor, consisting of four (4) submersible
1,565 GPM at 58 ft TDH pumps with VFD, two (2) submersible 781 GPM at 58 ft TDH
pumps with VFD, influent composite sampler, piping, and controls; Installation of new
preliminary treatment facility consisting of two (2) 4.5 MGD peak hourly mechanical step
fine screens systems, a manual screen channel,two (2) 4.5 MGFD peak hourly grit removal
systems with cyclone/classifier and screening compactor,a manual grit bypass channel,three
(3) 300 GPM at 55 ft TDH grit pumps, piping, and controls; installation of new BNR
tanks/secondary clarifier splitter box with. drop leg air diffusers (both sides) and ALS
addition diffusers (clarifier side),piping, and controls; installation of two (2)new five stage
(zones) 2.25 MG BNR tanks with fine air bubble diffuser array, zone 1 has one (1)
mechanical mixer and influent sump,zone 2 has four(4)mechanical mixers and drain sump,
zone 3 has one submersible (1) 6,250 GPM at 1 ft TDH NRYC pump with VFD and drain
State of North Carolina I Environmental Quality I Water Resources
1617 Mad service Center I Raleigh,North Carolina 27699-1617
Location 512 N.Salisbury St Raleigh,North Carolina 27604,Archdale Budding 9th Floor
Phone.[phone] /Fax [phone]

Mr. Jay Meyers, Public Utilities Director Town of Fuquay-Varina
February 5,2016
Page 2 of 4
sump, zone 4 has two (2) mechanical mixers and SCS addition diffusers, zone 5 has drain
sump and effluent outlet, piping, and controls; installation of two (2) new 85 ft diameter
clarifiers with 200 GPM at 28 TDH scum pumps, piping, and controls; installation of new
RAS/WAS pump station consisting of three (3) 1,389 GPM at 28 ft TDH pumps with VFD,
piping, and controls; installation of four (4) new blowers with VFD, 2 blowers each 1,410
SCFM at 15 psig maximum and 2 blowers each 1,100 SCFM at 15 psig maximum, piping,
and controls; installation of two (2) new 309 ft2 tertiary disk filters systems with each filter
system peak flow rated at 4.5 MGD and consisting of internal backwash pump system and
wash system, multiple disks, piping, and controls; installation of new dual channel UV
system with UV intensity and lamp monitoring and automatic lamp sleeve cleaning, system
rated for disinfection of 9.0 MGD to meet NPDES fecal coliform limits per North Carolina
minimum UV design criterion, 3 banks in-series per channel, 8 lamps per bank, with one
bank per channel designated as stand by, and other controls; installation of new post aeration
weir channels, effluent composite sampler, piping, and controls: installation of new internal
UW pump system consisting of sump, 250 gallon hydropneumatic tank, four (4) 130 GPM
at 200 ft TDH pumps, piping, and controls; installation of one (1) new 0.4 MG Sludge
Storage tank with fine air bubble diffuser array, piping, and controls; installation of new
sludge dewatering and truck loadout system consisting of two (2) 400 GPM at 70 TDH
Dewatering Sludge Feed pumps, two (2) adjustable polymer addition and mixer systems
design for maximum 1,500 GPH of 2% polymer solution, two (2) integrated independent
gravity belt thickener with sludge hopper and screw conveyor and continuous belt filter press
, two (2) 100 GPM at 115 ft TDH TWAS pumps,three (3) in series dewatered sludge screw
conveyors designed for maximum 24,000 lbs/hr, contained truck loading area, piping, and
controls; installation of new chemical storage area and chemical feed systems with
containment for each chemical tank system and for the corresponding truck unloading area,
consisting of one (1) 5,000 gallon ALS tank with three (3) 111 GPH at 30 psig adjustable
chemical feed pumps and containment sump with pump, one (1) 13,000 gallon caustic
-storage tank with water dilution meter and two (2) 110 GPM at 20 TDH circulation/mixing
pumps and two (2) 111 GPH at 30 psig adjustable chemical feed pumps and containment
sump with pump,one(1)7,300 gallon SCS tank with three(3) 111 GPH at 30 psig adjustable
chemical feed pumps and containment sump with pump,piping, and controls; installation of
one (1) diesel driven 1,000 KW, 480 vac, 3 phase standby generator system with 24 hr
capacity fuel tank, and controls; in conformity with the project plans, specifications, and
other supporting data subsequently filed and approved by the Department of Environmental
Quality.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NCO066516 issued effective January 1, 2016, and shall be subject to
revocation unless the wastewater treatment facilities are constructed in accordance with the
conditions and limitations specified in Permit No. NC0066516.
The sludge generated from these treatment facilities must be disposed of in accordance
with G.S. 143-215.1 and in a manner approved by the Division.

Mr. Jay Meyers, Public Utilities Director Town of Fuquay-Varina
February 5, 2016
Page 3 of 4
In the event that the facilities fail to perform satisfactorily, including the creation of
nuisance conditions, the Permittee shall take immediate corrective action, including those as may
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Raleigh Regional Office,telephone number(919) 791 -4200, shall be notified at least
forty-eight(48)hours in advance of operation of the installed facilities so that an on site inspection
can be made. Such notification to the regional supervisor shall be made during the normal office
hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a
certification must be received from`a professional engineer certifying that the permitted facility
has been installed in accordance,with the NPDES Permit, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Division of Water Resources, WQ
Permitting Section—NPDES, 1617 Mail Service Center, Raleigh,NC 27699-1617.
Upon classification of the facility by the Certification Commission, the Permittee shall
employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at least
equivalent to or greater than the classification assigned to the wastewater treatment facilities by
the Certification Commission.
The Permittee must also employ a certified back-up operator of the appropriate type and
grade to comply with the conditions of T15A:8G.0202. The ORC of the facility must visit each
Class I facility at least weekly and each Class II, III.and IV facility at least daily, excluding
weekends and holidays, must properly manage the facility, must document daily operation and
maintenance of the facility, and must comply with all other conditions of T15A:8G.0202.
A copy of the approved plans and specifications shall be maintained on file by the Permittee
for the life of the facility.
During the construction of the proposed additions/modifications, the permittee shall continue to
properly maintain and operate the existing wastewater treatment facilities at,all times, and in such
a manner, as necessary to comply with the effluent limits specified in the NPDES Permit.
You are reminded that it is mandatory for the project to be constructed in accordance with
the North Carolina Sedimentation Pollution Control Act, and when applicable,the North Carolina
Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in complying with these Acts.
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.

L
Mr. Jay Meyers, Public Utilities Director Town of Fuquay-Varina
February 5,2016
Page 4 of 4
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North Carolina
General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from
complying with any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.
If you have any questions or need additional information, please contact Ron Berry at
telephone number [phone].
Sincerely,
S. Jay Zimmerman
Director, Division of Water Resources
cc: Colin Beck, P.E.
Hazen and Sawyer
4011 WestChase Blvd
Suite 500
Raleigh,NC 27607
DWR/Raleigh Regional Office, Water Quality Programs
Central Files
NPDES File
Without Engineer's Certificate attached:
Wake County Health Department

� J
Town of Fuquay-Varina
Terrible Creek WWTP
Authorization to Construct No. 066516A03
Issued February 5, 2016
Engineer's Certification-
1, , as a duly registered Professional Engineer in
the State of North Carolina,having been authorized to observe (periodically/weekly/full time)the
construction of the modifications and improvements to the Terrible Creek Wastewater Treatment
Plant, located in Wake County,hereby state that, to the best of my abilities, due care and diligence
was used in the observation of the following construction:
Demolition of existing influent wet wells, existing clarifiers'# 1, #2, 43, existing tertiary
filters #1, #2, #3, existing blowers, existing chemical storage facility, existing post aeration
basin, existing UV disinfection system, and other surplus components; refurbishment of
existing treatment plant #1 and #2 basins to two (2) 0.383 MG EQ basins, piping, and
controls; refurbishment of treatment plant #3 basin to one (1) 0.682 MG EQ basin, piping,
and controls;installation of new influent pump station with 18 MGD peak hourly mechanical
and manual coarse screen system and incline conveyor, consisting of four (4) submersible
1,565 GPM at 58 ft TDH pumps with VFD, two (2) submersible 781 GPM at 58 ft TDH
pumps with VFD, influent composite sampler, piping, and controls; Installation of new
preliminary treatment facility consisting of two (2) 4.5 MGD peak hourly mechanical step
fine screens systems, a manual screen channel, two (2) 4.5 MGFD peak hourly grit removal'
systems with cyclone/classifier and screening compactor,a manual grit bypass channel,three
(3) 300 GPM at 55 ft TDH grit pumps, piping, and controls; installation of new BNR
tanks/secondary clarifier splitter box with drop leg air diffusers (both sides) and ALS
addition diffusers (clarifier side),piping,and controls; installation of two(2)new five stage
(zones) 2.25 MG BNR tanks with fine air bubble diffuser array, zone 1 has one (1)
mechanical mixer and influent sump,zone 2 has four(4)mechanical mixers and drain sump,
zone 3 has one submersible (1) 6,250 GPM at 1 ft TDH NRYC pump with VFD and drain
sump, zone 4 has two (2) mechanical mixers and SCS addition diffusers, zone 5 has drain
sump and effluent outlet, piping, and controls; installation of two (2) new 85 ft diameter
clarifiers with 200 GPM at 28 TDH scum pumps, piping, and controls; installation of new
RAS/WAS pump station consisting of three (3) 1,389 GPM at 28 ft TDH pumps with VFD,
piping, and controls; installation of four (4) new blowers with VFD, 2 blowers each 1,410
SUM at 15 psig maximum and 2 blowers each 1,100 SUM at 15 psig maximum, piping,
and controls; installation of two (2) new 309 ft' tertiary disk filters systems-with each filter
system peak flow rated at 4.5 MGD and consisting of internal backwash pump system and
wash system, multiple-disks, piping, and controls; installation of new dual channel UV
system with UV intensity and lamp monitoring and automatic,lamp sleeve cleaning, system
rated for disinfection of 9.0 MGD to meet NPDES fecal coliform limits per North Carolina
minimum UV design criterion, 3 banks in series per channel, 8 lamps per bank, with one
bank per channel designated as stand by, and other controls; installation of new post aeration
weir channels, effluent composite sampler,piping, and controls: installation of new internal
UW pump system consisting of sump, 250 gallon hydropneumatic tank, four (4) 130 GPM
at 200 ft TDH pumps, piping, and controls; installation of one (1) new 0.4 MG Sludge

Terrible Creek WWTP
Authorization to Construct No. 066516A03
Issued February 5, 2016
Storage tank with fine air bubble diffuser array, piping, and controls; installation of new
sludge dewatering and truck loadout system consisting of two (2) 400 GPM at 70 TDH
Dewatering Sludge Feed pumps, two (2) adjustable polymer addition and mixer systems
design for maximum 1,500 GPH of 2% polymer solution, two (2) integrated independent
gravity belt thickener with sludge hopper and screw conveyor and continuous belt filter press
, two (2) 100 GPM at 115 ft TDH TWAS pumps, three (3) in series dewatered sludge screw
conveyors designed for maximum 24,000 lbs/hr, contained truck loading area, piping, and
controls; installation of new chemical storage area and chemical feed systems with
containment for each chemical tank system and for the corresponding truck unloading area,
consisting of one (1) 5,000 gallon ALS tank with three (3) 111 GPH at 30 psig adjustable
chemical feed pumps and containment sump with pump, one (1) 13,000 gallon caustic
storage tank with water dilution meter and two (2) 110 GPM at 20 TDH circulation/mixing
pumps and two (2) 111 GPH at 30 psig adjustable chemical feed pumps and containment
sump with pump,one(1)7,300 gallon SCS tank with three(3) 111 GPH at 30 psig adjustable
chemical feed pumps and containment sump with pump,piping, and controls; installation of
one (1) diesel driven 1,000 KW, 480 vac, 3 phase standby generator system with 24 hr
capacity fuel tank, and controls; in conformity with the project plans, specifications, and
other supporting data subsequently filed and approved by the Department of Environmental
Quality.
Upon completion of construction and submittal of this Engineering Certificate the facility is
confirming its expansion to 3.0 MGD and will be subject to NPDES permit requirements for
3.0 MGD.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance, intent and in conformity with all applicable regulations and statutes and
the project plans,specifications,and other supporting documentation comprising the Authorization
to Construct Permit Application package.
Signature Registration No.
i
Date j
Mail this Certification to: Attn: Ron Berry SEAL
Complex Permitting Unit
DEQ/DWR/Water Quality Programs
1617 Mail Service Center j
Raleigh,NC 27699-1617