NC0033111_033111A06 ATC with Certification_20230221

North Carolina Department of Environmental Quality | Division of Water Resources
512 North Salisbury Street | 1611 Mail Service Center | Raleigh, North Carolina 27699-1611
919.707.9000

February 21, 2023

Mr. Travis Dupree
VP, Project Management & Engineering
Carolina Water Service, Inc. of NC
5821 Fairfield Road, Suite 401
Charlotte, North Carolina 28209

SUBJECT: Authorization to Construct
A to C No. 033111A06
Carolina Water Service, Inc. of NC
Fairfield Harbour Subdivision WWTP
NPDES Permit No. NC0033111

Dear Mr. Dupree:

A letter of request for an Authorization to Construct was received January 17, 2023, by the
Division of Water Resources (Division). With additional information received on February 20,
2023, 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
0.6 MGD Fairfield Harbour Subdivision WWTP, with discharge of treated wastewater into the
Neuse River in the Neuse River Basin.

This authorization results in no increase in design or permitted capacity and is awarded for
the construction of the following specific modifications:

Addition of one (1) 58,166-gallon pre-anoxic zone and one (1) 56,004-gallon post-anoxic
zone to the existing aeration treatment tank #1, and one (1) 59,653-gallon pre-anoxic zone
and one (1) 55,179-gallon post-anoxic zone to the existing aeration treatment tank #2,
installation of two (2) 313 GPM influent pumps and two (2) 625 GPM internal recycle
pumps to each treatment tank, and one (1) 4.4 HP submersible mixer to each proposed
anoxic zone, replacement of existing blowers with three (3) 1,475 SCFM blowers for
aeration/digester and two (2) 204 SCFM EQ blowers, 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.

This ATC is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0033111 issued effective July 1, 2018, and shall be subject to revocation unless the wastewater

Mr. Travis Dupree, VP, Project Management & Engineering
February 21, 2023
Page 2 of 3

treatment facilities are constructed in accordance with the conditions and limitations specified in
Permit No. NC0033111.

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 Washington 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 21, 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,

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: Eldon Leo Green, Jr., PE
Green Engineering, P.L.L.C.
Email: [e-mail]
DWR Washington Regional Office, Water Quality Programs

Without Engineer’s Certificate attached:
cc: Craven County Health

Carolina Water Service, Inc. of NC
Fairfield Harbour Subdivision WWTP
Authorization to Construct No. 033111A06
Issued February 21, 2023
NPDES Permit No. NC0033111

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 Fairfield Harbour Subdivision
Wastewater Treatment Plant, located in Craven County, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction:

Addition of one (1) 58,166-gallon pre-anoxic zone and one (1) 56,004-gallon
post-anoxic zone to the existing aeration treatment tank #1, and one (1) 59,653-
gallon pre-anoxic zone and one (1) 55,179-gallon post-anoxic zone to the existing
aeration treatment tank #2, installation of two (2) 313 GPM influent pumps and
two (2) 625 GPM internal recycle pumps to each treatment tank, and one (1) 4.4
HP submersible mixer to each proposed anoxic zone, replacement of existing
blowers with three (3) 1,475 SCFM blowers for aeration/digester and two (2) 204
SCFM EQ blowers, 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.

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