NC0020761_AUTHORIZATION TO CONSTRUCT_20120906

NPDES DOCYNENT SCANNING COVER SHEET
NPDES Permit:
NC0020761
North Wilkesboro WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct
(AtC) -
Permit Modification
Complete File - Historical
Speculative Limits
Instream Assessment (67b)
Environmental Assessment (EA)
Permit
History
Document Date:
September 6, 2012
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ee1Mj,F,1_e NCUDZ0761
Town of North Wilkesboro
A TO C No. 020761A02
Issued January 20, 2011
SEP 1 0 7012
Engineer's Certification
I, Brady H. Bucy, 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 Thurman Street WWTP,
located on Thunnan Street in Wilkes County for the Town of North W7es oro, hereby
state that, to the best of my abilities, due care and diligence was used in the observation
of the following construction:
Replacement of an existing gas chlorine disinfection system with a new dual bank
UV disinfection system capable of treating a peak flow of 5.0 MGD with 100%
redundancy and a 405 kW generator, in conformity with the project plans,
specifications, and other supporting data subsequently filed and approved by the
Department of Environment and Natural Resources. A back-up tablet chlorine
disinfection and dechlorination system was not installed following discussions
with NC DENR / DWQ. With the incorporation of the new generator and dual
bank UV system, the facility has automatically activated stand-by power supply
for all on -site essential components and multiple component duality for
disinfection.
I certify that the construction of the above referenced project was observed to be built
within substantial compliance and intent of the approved plans and specifications.
Signature Registration No.24709
Date 0( 6 ! 2-
Send to: Construction Grants & Loans
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633
SN1CAR0
EA
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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
January 20, 2011
Mr. Jimmy Martin
Town of North Wilkesboro
100 Thurman St.
North Wilkesboro, North Carolina 28659
Dear Mr. Martin:
Dee Freeman
Secretary
SUBJECT: Authorization to Construct
A to C No. 020761 A02
Town of North Wilkesboro
Thurman Street WWTP
Wilkes County
A letter of request for an Authorization to Construct was received October 18, 2010, by
the Division of Water Quality (Division), and 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 2.0 MGD Wastewater Treatment Plant, with
discharge of treated wastewater into the Yadkin River in the Yadkin 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 an existing gas chlorine disinfection system with a new dual bank
UV disinfection system capable of treating a peak flow of 5.0 MGD, installation
of backup tablet chlorine disinfection and dechlorination systems, and a 405 kW
generator, in conformity with the project plans, specifications, and other
supporting data subsequently filed and approved by the Department of
Environment and Natural Resources.
This Authorization to Construct is issued in accordance with Part 111, Paragraph A of
NPDES Permit No. NCO020761 issued March 11, 2009, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0020761.
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.
1617 Mail Service Center, Ralegh, North Carolina 27699-1617 Ore
512 N. Salisbury St. Ralegh, North Carolina 27604 NorlhCarolina
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet yr mcvvaterquality.org An Equal Opportunity 1 Affirmative Action Employer �at`{ra!`y

A
Mr. Jimmy Martin
January 20, 2011
Page 2
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 [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, this Authorization to Construct and the
approved plans and specifications. Mail the Certification to: Construction Grants & Loans,
DWQ/DENR, 1633 Mail Service Center, Raleigh, NC 27699-1633.
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, II1 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 approved plans and specifications shall be maintained on file by the
Penmittee 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 stale 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.
Y,

irMr. Jimmy Martin
January 20, 2011
Page 3
Failure to abide by the requirements contained in this Authorization to Construct may
subject the Permittee to an enforcement action by the Division in accordance with North
Carolina General Statute 143-215.6A to 143-215.6C.
The issuance of this Authorization to Construct 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.
One (1) set of approved plans and specifications is being forwarded to you. If you have
any questions or need additional information, please contact Seth Robertson, P.E. at telephone
number [phone].
Sincerely,
Coleen H. Sullins
MM ar l/.�/
cc: Brad H. Bucy, P.E., Hobbs, Upchurch & Associates, 9140 Arrowpoint Blvd., Suite 120,
Charlotte, NC 28273
Wilkes County Health Department
DWQ Winston-Salem Regional Office, Surface Water Protection .
Technical Assistance and Certification Unit
Point Source Branch, NPDES Program
Michelle McKay, E.I.
ATC File