NC0040070_Authorization to Construct - Dechlorination_20060614

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Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Mr. C. Edward Cross
City of Gastonia
PO Box 1748
Gastonia, NC 28053-1748
Dear Mr. Cross:
Alan W. Klimek:P.E. pirector
1e Division of Water Quality
June 14, 2006
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SUBJECT: Authorization to Construct
A to C No. 040070A0I
City of Gastonia WTP
Dechlorination Facilities
Gaston County
A fast track application for Authorization to Construct dechlorination facilities was
received on June 5, 2006, by the Division. Authorization is hereby granted for the construction of
modifications to the existing City of Gastonia WTP, with discharge of treated wastewater into
Long 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 a dechlorination system utilizing sodium thiosulfate pursuant to the
fast track application received on June 5, 2006, and in conformity with the
Minimum Design Criteria for Dechlorination Facilities.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NCO040070 issued May 1, 2005, and shall be subject to revocation unless
the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0040070.
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
NNaam` Carolina
turally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh. NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer - 500/a Recycled/10% Post Consumer Paper

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Mr. Cross
June 14, 2006
Page 2
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.
Pursuant to 15A NCAC 2H .0140, upon completion of construction and prior to operation of
these permitted facilities, the completed Engineering Certification form attached to this permit shall be
submitted to the address provided on the form.
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 T 15A: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.
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.

r 4 ,
Mr. Cross
June 14, 2006
Page 3
If you have any questions or need additional information, please do not hesitate to contact
Cecil G. Madden, Jr., P.E. at telephone number [phone].
Sincerely,
P;-Z4
Alan W. Klim
MM/cgm
cc: Charles A. Willis, Jr., P.E., Willis Engineers
Gaston Countv Hea'-rh_r�.P„,�r_
Technical Assistance and Certification Unit
Daniel Blaisdell, P.E.
Point Source Branch, NPDES Program
Cecil G. Madden, Jr., P.E.
Michelle McKay
A to C File
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City of Gastonia
City of Gastonia WTP
A to C No. 040070A01
June 14, 2006
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 City of Gastonia WTP located on
West Long Avenue 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 a dechlorination system utilizing sodium thiosulfate pursuant to the
fast track application received on June S, 2006, and in conformity with the
Minimum Design Criteria for Dechlorination Facilities.
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
Date
Registration No.
Send to: Construction Grants & Loans
DENR/D WQ
1633 Mail Service Center
Raleigh, NC 27699-1633