NC0069841_Permit (Issuance)_20240426

DocuSign Envelope ID: 3936AE55-E4D9-4C74-8F9C-3B39D04BCDE9
ROY COOPER
cfferrtvr
ELIZABETH & EISER
Secretary
RICHARD E_ ROGERS, IR.
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Nt7Is r H C::` RD-INA
E'nvfronmenfat Quality
April 26, 2024
Mr. Thomas Mann, CIP Program Manager
Union County Water
500 N. Main St. Suite 600
Monroe, North Carolina 28112
SUBJECT
Authorization to Construct
A to C No. 069841A03
Union County Water
Crooked Creek WRF
NPDES Permit No. NCO069841
A letter of request for an Authorization to Construct was received April 17,2024, by the
Division of Water Resources (Division). With additional information received on April 18, 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
1.9 MGD Crooked Creek WRF, with discharge of treated wastewater into the Crooked Creek in
the Yadkin Pee -Dee Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
• Three (3) two (2) duty and one (1) standby, in -series UV light disinfection banks, each
consisting of eight (8) lamps and rated for2.5 MGD at peak hourly flow.
• 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. NCO069841
issued effective August 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.
NCO069841.
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 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.
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NORTH CAROLINA 919.7079000
Department of Environmental quality

DocuSign Envelope ID: 3936AE55-E4D9-4C74-8F9C-3B39D04BCDE9
April 26, 2024
Page 2 of 4
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.

DocuSign Envelope ID: 3936AE55-E4D9-4C74-8F9C-3B39D04BCDE9
April 26, 2024
Page 3 of 4
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 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,
Ev
DocuSigned by:
b+S V bW kuA,
CE9CD2D3C45B4D4...
by Douglas Dowden
Environmental Programs Supervisor II
Industrial Permitting Unit
Division of Water Resources
cc: NPDES Files
ecopy: Michael Parker, PE
Hazen and Sawyer
Email: [e-mail]
DWR Mooresville Regional Office, Water Quality Programs
cc: Union County Health

DocuSign Envelope ID: 3936AE55-E4D9-4C74-8F9C-3B39D04BCDE9
Union County Water
Crooked Creek WRF
Authorization to Construct No. 06984IA03
Issued April 26, 2024
NPDES Permit No. NC0069841
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 Wastewater Treatment Plant,
located in Alamance County, hereby state that, to the best of my abilities, due care and diligence was
used in the observation of the following construction of :
❑ Three (3) two (2) duty and one (1) standby, in -series UV light disinfection banks, each consisting of eight (8)
lamps and rated for2.5 MGD at peak hourly flow.
❑ 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
Registration No.
Mail this Certification to: Attn: Ori Tuvia
NPDES Industrial Permitting Unit
DEQ/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh, NC 27699-1617