NC0074268_Authorization to Construct_20080919

O4.e---. FR t Michael F. Easley, Governor
41,
i William G. Ross Jr., Secretary
rNorth Carolina Department of Environment and Natural Resources
1 Coleen H. Sullins, Director
'< Division of Water Quality
September 19, 2008
Mr. Larry Cummings
City of Gastonia
P.O. Box 1748
Gastonia, North Carolina 28053
SUBJECT: Authorization to Construct
A to C No. 074268A02
City of Gastonia
Crowders Creek WWTP
Gaston County
Dear Mr. Cummings:
A letter of request for an Authorization to Construct was received June 24, 2008, by the
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:
replacement of one 50 HP return activated sludge pump motor; replacement of one 50 HP
return activated sludge pump and motor; installation a of precast scum box including
two (2) 5 HP chopper recirculation pumps, 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 III, 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 North Carolina Division of Water Quality.
Now Carolina
aturallj
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet www.ncwaterqualitv.orq 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

Mr. Larry Cummings
September 19, 2008
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 this 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.
f.
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.

i
Mr. Larry Cummings
September 19, 2008
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 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. If you have any
questions or need additional information, please contact Seth Robertson, P.E. at telephone number
[phone].
Sincerely,
tift- Coleen H. Sullins
swc:sr
4it
cc: Charles A. Willis, P.E., Willis Engineers, 10700 Sikes Place, Charlotte, NC 28277
Gaston County Health Department
Mooresville Regional Office, Surface Water Protection
Technical Assistance and Certification Unit
Point Source Branch, NPDES Program
Seth Robertson, P.E.
Steve Coffey, P.E.
ATC File No: 074268A02