NC0062219_Authorization to Construct_20230222

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
February 22, 2023
Mr. Travis Dupree
VP, Project Management & Engineering
Carolina Water Service, Inc. of NC
P.O. Box 240908
Charlotte, North Carolina 28224-0908
SUBJECT: Authorization to Construct
A to C No. 062219A01
Carolina Water Service, Inc. of NC
Kings Grant Subdivision WWTP
NPDES Permit No. NC0062219
Dear Mr. Dupree:
A Permit Application package for an Authorization to Construct (ATC) Permit was
received January 26, 2023, 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 0.07 MGD
Kings Grant Subdivision WWTP and is hereby issued for the construction of the following specific
modifications:
Installation of a new precast concrete valve vault for the existing pump station; replacement
of existing influent pumps with two (2) 125 GPM influent pumps; replacement of existing
manual bar screen with one (1) 0.175 MGD manual bar screen; replacement of existing
closed -pipe UV system with two (2) in -series open -channel UV banks each rated for 0.175
MGD at peak hourly flow with eight (8) lamps per bank; relocation of existing effluent
flow meter and installation of one (1) new effluent flow measurement flume; demolition
of a steel chlorination tank; and installation of all necessary 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.
D_E Q?)
NORTH CAROLINA
geparhnenl of Environmental quay
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street I 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
919.707.9000

Mr. Travis Dupree, VP, Project Management & Engineering
February 22, 2023
Page 2 of 3
This ATC is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0062219 issued effective April 1, 2018, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in
Permit No. NC0062219.
It is the Owner's responsibility to ensure that the as -constructed project 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 Raleigh Regional Office, telephone number [phone], 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
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.

Mr. Travis Dupree, VP, Project Management & Engineering
February 22, 2023
Page 3 of 3
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 Min Xiao, PE at
telephone number [phone] or by email at [e-mail].
Sincerely,
,—DocuSigned by:
`— B0B410C9F6204F7...
for Richard E. Rogers, Jr.
Director, Division of Water Resources
by Min Xiao, PE
NPDES Industrial Permitting Unit
With Engineer's Certificate attached:
cc: NPDES Files
ecopy: John Phillips, PE
Diehl & Phillips, P.A.
Email: [e-mail]
DWR Raleigh Regional Office, Water Quality Programs
Without Engineer's Certificate attached:
cc: Wake County Health

Carolina Water Service, Inc. of NC
Kings Grant Subdivision WWTP
Authorization to Construct No. 062219A01
Issued February 22, 2023
NPDES Permit No. NC0062219
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 Kings Grant Subdivision
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:
Installation of a new precast concrete valve vault for the existing pump station;
replacement of existing influent pumps with two (2) 125 GPM influent pumps;
replacement of existing manual bar screen with one (1) 0.175 MGD manual bar
screen; replacement of existing closed -pipe UV system with two (2) in -series
open -channel UV banks each rated for 0.175 MGD at peak hourly flow with eight
(8) lamps per bank; relocation of existing effluent flow meter and installation of
one (1) new effluent flow measurement flume; demolition of a steel chlorination
tank; and installation of all necessary piping and controls in conformity with the
project plans, specifications, and other supporting documentation comprising the
ATC Permit Application package submitted to the Depailment 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, PE
NPDES Industrial Permitting Unit
DEQ/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh, NC 27699-1617