NC0034452_Authorization to Construct_20191218

4,02X'Llty
ROY COOPER tA
Governor pe
MICHAEL S.REGAN
Secretary . *
LINDA CULPEPPER
Director NORTH CAROLINA
Environmental Quality
December 18, 2019
Mr. Michael A. Melton
Engineering Manager
Aqua North America, Inc
4163 Sinclair Street
Denver, North Carolina 28037
SUBJECT: Authorization to Construct
A to C No. 034452A03
Aqua North America, Inc
Willow Creek Subdivision WWTP
NPDES Permit No. NC0034452
Dear Mr. Melton:
A Permit Application package for an Authorization to Construct (ATC) Permit was
received October 11 2019,by the Division of Water Resources (Division).
This Authorization to Construct Permit is issued based solely upon the North
Carolina Licensed Professional Engineer's certification and the Applicant's certification of
the ATC Permit Application package. The Division has waived the technical review of the
plans, specifications, calculations and other supporting documentation included in the
subject ATC Permit Application package. Note that the ATC Permit Application package
may be subject to a Division audit.
This ATC results in no increase in design or permitted capacity of the existing 0.08 MGD
Willow Creek Subdivision WWTP and is hereby issued for the construction of the following
specific modifications:
Demolition of existing 0.04 MGD steel package treatment system, equalization tank, sludge
holdingtank, aeration basin, final clarifier; relocation of existingstorage shed, storage rack and
g g
sampler; replacement of existing chlorine contact chamber with re-aeration and water effluent
pump station consisting of two (2) 195 GPM 3 HP submersible pumps; construction of new 0.04
MGD concrete package wastewater treatment plant consisting of one (1) new mechanical bar
screen with capacity of 1.26 MGD at peak hourly flow, one (1) 20,426 gallons flow equalization
basin (EQ) with two (2) 195 GPM 3 HP submersible EQ pumps and one (1) 5 HP rotary lobe PD
blower capable of providing 82 SCFM of air, one(1) new 50,385 gallons aeration basin with two
(2) 40 HP rotary lobe PD blowers capable of providing 632 SCFM of air, one (1) 144 square
feet rectangular secondary clarifier,one(1)21,788 gallons sludge holding basin with two(2)3 HP
NORTHD_EQ��
�1.North Carolina Department of Environmental Quality I Division of Water Resources
S12 North Salisbury Street 11611 Mail Service Center I Raleigh,North Carolina 27699-1611
010 7l17 14111

Mr.Michael A. Melton,Engineering Manager
December 18,2019
Page 2 of 3
rotary lobe PD blowers capable of providing 30 SCFM of air;installation of new sodium hydroxide
feed system consisting of 55 gallons tank, one (1) pump at 20 psig; installation of all required
piping and controls; in conformity with the project plans, specifications, and other supporting
documentation comprising the ATC Permit Application package submitted to the Department of
Environmental Quality.
This ATC is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0034452 issued effective June 1,2019,and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in
Permit No. NC0034452.
It is the Owner's responsibility to ensure that the as-constructedpr
oject ty p oject meets the
requirements of all applicable regulations and statutes, the ATC Permit Application package, and
all of the requirements contained herein. Failure to comply may result in penalties in accordance
with North Carolina General Statute §143-215.6A through §143-215.6C.
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.
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 Winston-Salem Regional Office, telephone number(336) 776-9800, 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 and the ATC Permit Application package.
Mail the Certification to: Division of Water Resources, WQ Permitting — 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
Page 2 of 3

Mr.Michael A.Melton,Engineering Manager
December 18, 2019
Page 3 of 3
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 project 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.
The issuance of this ATC 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 Qais Banihani at
telephone number(919) 707-3607.
Sincerely,
inda Cul'8-1 e
Director, Division of Water Resources
With Engineer's Certificate attached:
cc: DWR Winston-Salem Regional Office, Water Quality Programs
Central Files
ecopy: David F. Schrader, P.E.
Howard K. Bell Consulting Engineers, Inc.
Email: [e-mail]
NPDES File
Without Engineer's Certificate attached:
cc: Davidson County Health
Page3of3

Aqua North America, Inc.
Willow Creek Subdivision WWTP
Authorization to Construct No. 034452A03
Issued December 18,2019
NPDES Permit No.NC0034452
Engineer's Certification
I, , 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 Willow Creek Subdivision Wastewater
Treatment Plant,located in Davidson 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 0.04 MGD steel package treatment system,equalization tank,sludge holding
tank, aeration basin, final clarifier; relocation of existing storage shed, storage rack and sampler;
replacement of existing chlorine contact chamber with re-aeration and water effluent pump station
consisting of two(2) 195 GPM 3 HP submersible pumps; construction of new 0.04 MGD concrete
package wastewater treatment plant consisting of one(1)new mechanical bar screen with capacity
of 1.26 MGD at peak hourly flow, one (1) 20,426 gallons flow equalization basin (EQ) with two
(2) 195 GPM 3 HP submersible EQ pumps and one (1) 5 HP rotary lobe PD blower capable of
providing 82 SCFM of air, one (1) new 50,385 gallons aeration basin with two (2) 40 HP rotary
lobe PD blowers capable of providing 632 SCFM of air, one (1) 144 square feet rectangular
secondary clarifier, one (1) 21,788 gallons sludge holding basin with two (2) 3 HP rotary lobe PD
blowers capable of providing 30 SCFM of air; installation of new sodium hydroxide feed system
consisting of 55 gallons tank, one (1) pump at 20 psig; installation of all required piping and
controls; in conformity with the project plans, specifications, and other supporting documentation
comprising the ATC Permit Application package submitted to the Department of Environmental
Quality.
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.
Date
Mail this Certification to: Attn: Min Xiao SEAL
Complex Permitting Unit
DEQ/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh,NC 27699-1617