NC0025071_Authorization to Construct_20240808

Docusign Envelope ID: 699D4619-C45A-4ECB-9CA9-919F29BECA63
ROY COOPER
Giovernor
ELIZABETH S. BISER
5-rd-y
RICE ARD E_ ROOERS. JR.
D+rrcror
NORTH CAROLINA
free MFUMrRMI QUI31fry
August 8, 2024
Jon Mendenhall, City Manager
City if Eden
308 E. Stadium Ave.
Eden, North Carolina Click 27288
SUBJECT: Authorization to Construct
A to C No. 02507IA06
City of Eden
Mebane Bridge WWTP
NPDES Permit No. NCO025071
Dear Mr. Mendenhall:
A letter of request for an Authorization to Construct was received on May 3, 2024, by the
Division of Water Resources (Division). With additional information received on August 7, 2024,
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
13.5 MGD, Mebane Bridge WWTP, with discharge of treated wastewater into the Dan River, in
the Roanoke River Basin.
This authorization results in no increase in design or permitted capacity and is awarded for
the construction of the following specific modifications:
• Replacement of the existing gas chlorination system to liquid system with two (2) new
10,000 gallons liquid chlorination tanks and two (2) 3 GPM @ 200 ft TDH Diaphragm
hypochlorite feed pump with VFDs.
• All necessary piping and controls (if applicable); 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.
NCO025071 issued effective May 1, 2021 and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in
Permit No. NCO025071.
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
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Docusign Envelope ID: 699D4619-C45A-4ECB-9CA9-919F29BECA63
J Vll 1Y1V111A11111C111, ill,,' 1Y1U11Clstrl
August 8, 2024
Page 2 of 4
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 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. The Engineer's Certification form is included with this submittal.
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. All ORC site inspections
must be documented in a log to be on -site and available for review at all times.
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

Docusign Envelope ID: 699D4619-C45A-4ECB-9CA9-919F29BECA63
J Vll 1Y1V111A11111C111, ill,,' 1Y1U11Clstrl
August 8, 2024
Page 3 of 4
Dam Safety Act. In addition, the specifications must clearly state what the contractor's
responsibilities shall be in compliance 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 Ori Tuvia at
telephone number [phone] or by email at [e-mail].
Sincerely,
DOCUSignned by:
79OOA4FBFCA14FD...
by Nick Coco, PE
ARPA Supervisor
Division of Water Resources
cc: NPDES Files
Rockingham County Health
e-copy: Andrew Arnold, PE, Dewberry
Email: [e-mail]
DWR Winston Salem. Regional Office, Water Quality Programs

Docusign Envelope ID: 699D4619-C45A-4ECB-9CA9-919F29BECA63
City of Eden
Mebane Ridge WWTP
Authorization to Construct No. 025071A06
Issued August 8, 2024
NPDES Permit No. NC0025071
Engineer's Certification
❑ Final Engineering Certification / ❑ Partial Engineering Certification (mark all that apply)
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 Mebane Ridge Wastewater Treatment
Plant, located in Rockingham County, hereby state that, to the best of my abilities, due care and
diligence was used in the observation of the following construction of :
❑ Replacement of the existing gas chlorination system to liquid system with two (2) new 10,000 gallons
liquid chlorination tanks and two (2) 3 GPM @ 200 ft TDH Diaphragm hypochlorite feed pump with
VFDs.
❑ All necessary piping and controls (if applicable); 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
substantia 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
Date
Mail this Certification to: Attn: Ori Tuvia
Registration No.
NPDES Industrial Permitting Unit
DEQ/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh, NC 27699-1617