NC0020389_Authorization to Construct_19990311

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
March 11, 1999
Mr. Keith Langdon
Town of Benson
Post Office Box-69
Benson, North Carolina 27504
Dear Mr. Langdon:
rA
NCDENR
NORTH CAROLINA DEPARTMENT OF.
ENVIRONMENT AND NATURAL RESOURCES
Subject: Permit No. NC0020389
Authorization to Construct
Project No. 020389ACB
Benson WWTP
Johnston County
The Division received a letter of request for an Authorization to Construct on December 3. 1998 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 above referenced 1.5 MGD wastewater treatment facility
operated by the Town of Benson discharging treated wastewater to Hannah Creek in the Neuse River Basin.
Specifically, authorization is granted for the construction/installation of:
• Four (4) propeller -type (one in ditches 1 and 3 and two in ditch 2);
• A recycle pump station; and
• All necessary piping and appurtenances.
Installation of these facilities will allow the Town to operate its wastewater treatment facility in such a way
as to begin biologically removing total nitrogen.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0020389 issued February 24, 1994, and shall be subject to revocation unless the wastewater treatment facilities
are constructed in accordance with the conditions and limitations specified in Permit No. NC0020389.
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 North Carolina Division of Water Quality.
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 this 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 in -place 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.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]/FAX.[phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

Permit No. NC0020389
ATC Number 020389CB
Page 2
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
the NPDES Unit, P.O. Box 29535. Raleigh, NC 27626-0535.
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 Title 15A, Chapter
8A, .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, and must properly manage and document daily operation and
maintenance of the facility and must comply with all other conditions of Title 15A, Chapter 8A, .0202. Once the
facility is classified, the Permittee must submit a letter to the Certification Commission which designates the
operator in responsible charge within thirty days after the wastewater treatment facilities are 50% complete.
The Operational Agreement between the Permittee and the Environmental Management Commission is
incorporated herein by reference and is a condition of this Permit. Noncompliance with the terms of the
Operational Agreement shall subject the Permittee to all sanctions provided by G. S. 143-215.6 for violation of or
failure to act in accordance with the terms and conditions of this Permit.
'Failure to abide by the requirements contained in this Authorization to Construct may subject the Permittee
to an enforcement action by the Division of Water Quality 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. The Permittee shall maintain a
copy of the approved plans and specifications on file for the life of the facility. If you have any questions or need
additional information, please contact Mark Mclntire, telephone number [phone], extension 553.
Sincerely,
ityylk.
. Preston Howard, Jr., P.E.
cc: Central Files
NPDES Unit, Permit File
Raleigh Regional Office, Water Quality
Technical Assistance and Certification Unit

i
Permit No. NC0020389
ATC Number 020389CB
Page 3
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 project, for the
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the
following installations:
• Four (4) propeller -type (one in ditches 1 and 3 and two in ditch 2);
• A recycle pump station; and
• All necessary piping and appurtenances.
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.
Date
In addition, please check one of the following:
There are still some major components that require completion. Another Engineer's Certificate will be
submitted once all substantial construction has been completed.
▪ All substantial construction has been completed. The permittee understands that they are required to
meet any new permit limits at the expanded flow. Please notify compliance.
Mail this Certification to the
NPDES Unit
DENR/DWQ
P.O. Box 29535
Raleigh, NC 27626-0535.