NC0074268_Authorization to Construct_20100507

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
May 7, 2010
Mr. Rusty Bost, P.E., Assistant City Engineer
City of Gastonia
P.O. Box 1748
Gastonia, North Carolina 28053-1748
SUBJECT: Authorization to Construct
A to C No. 074268A04
City of Gastonia
Crowders Creek WWTP — Additional Bar Screens
Gastonia County
Dear Mr. Bost:
A letter of request for an Authorization to Construct was received April 16, 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 6.0 MGD Wastewater Treatment Plant, with discharge of treated
wastewater into Crowders Creek in the Catawba River Basin.
This authorization results in no increase in design or permitted capacity and is awarded
for the construction of the following specific modifications:
Installation of two (2) mechanical bar screens (each rated for 12 MGD peak flow) at the
Crowders Creek WWTP headworks structure, 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. NC0074268 issued April 1, 2006, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0074268.
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
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Mr. Rusty Bost, P.E., Assistant City Engineer
May 7, 2010
Page 2
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Mooresville 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, 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 approved 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 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.

Mr. Rusty Bost, P.E., Assistant City Engineer
May 7, 2010
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
kp:sr
cc: Steve Cavanaugh, P.E., Cavanaugh & Associates, P.A., Winston-Salem, NC
Gaston County Health Department
DWQ, Mooresville Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File No. 074268A04

a
City of Gastonia
Crowders Creek WWTP — Additional Bar Screens
A To C No. 074268A04
Issued May 7, 2010
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 Crowders Creek WWTP, located
on U.S. Hwy 321 in Gaston County for the City of Gastonia, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction:
Installation of two (2) mechanical bar screens (each rated for 12 MGD peak flow) at the
Crowders Creek WWTP headworks structure, in conformity with the project plans,
specifications, and other supporting data subsequently filed and approved by the
Department of Environment and Natural Resources.
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
Send to: Construction Grants & Loans
DENRJDWQ
1633 Mail Service Center
Raleigh, NC 27699-1633