NC0087033_Authorization to Construct_20101012

Town of Harmony
ATC No. 087033A02
Issued February 23, 2009
Engineer's Certification
Wr i ,-t t)
s ,�:c , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe (periodically/weekly/full time) o the Harmony WWTP, located on SR
the construction of the modifications and improvements t
1939 Road in Iredell County for the Town of Hannony, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction:
a 20,000 gallon flow equalization basin with a manually cleaned bar screen, duplex
55 gpm 0.75 Hp pumps, and a 2.0 Hp blower; a flow splitter box; dual 40,000
gallon extended aeration tanks with coarse bubble diffusers; two (2) 25.0 Hp
blowers; dual secondary clarifiers (100 ft each); a 19,440 gallon aerated sludge
holding tank; a cloth media rotating drum tertiary filter capable of treating a p
eak
flow of 0.2 mgd;- a dual bank effluent ultraviolet disinfection system, with each
bank rated at 0.2 mgd peak flow; a V-notch weir with a flow measuring device, and
a 100 kW standby generator, in conformity with the project plans, specifications,
and other supporting data subsequently filed and approved by the Department
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.
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1633 Mail Service Center
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NOTE: This certification does not constitute an L '.',RANCH
acceptance of Work not in accordance with the
Contract Documents nor is it a release of Contractor's
obligation to complete the Work in accordance with the
Contract Documents.

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
February 23, 2009
The Honorable John Ray Campbell
Town of Harmony
P.O. Box 118
Harmony, North Carolina 28634
Dee Freeman
Secretary
SUBJECT: Authorization to Construct
ATC No. 087033A02
Town of Harmony
Harmony W WTP
Iredell County
Dear Mr. Campbell:
A letter of request for an Authorization to Construct was received September 11, 2008,
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 a 0.080 MGD Wastewater Treatment Plant, with discharge of treated wastewater
into Dutchman Creek in the Yadkin — Pee Dee River Basin.
This authorization is awarded for the construction of the following:
a 20,000 gallon flow equalization basin with a manually cleaned bar screen, duplex
55 gpm 0.75 Hp pumps, and a 2.0 Hp blower; a flow splitter box; dual 40,000
gallon extended aeration tanks with coarse bubble diffusers; two (2) 25.0 Hp
blowers; dual secondary clarifiers (100 ft2 each); a 19,440 gallon aerated sludge
holding tank; a cloth media rotating drum tertiary filter capable of treating a peak
flow of 0.2 mgd; a dual bank effluent ultraviolet disinfection system, with each
bank rated at 0.2 mgd peak flow; a V-notch weir with a flow measuring device; and
a 100 kW standby 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 III, Paragraph A of
NPDES Permit No. NCO087033 issued December 17, 2008, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0087033.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One
Location: 512 N. Salisbury St Raleigh, North Carolina 27604 NorthCarolina
Phone: [phone] FAX: [phone] Customer Service:1-877-623-6748
Internet: www.ncwaterquality.org AWUralloff
An Equal Opportunity 1 Affirmative Action Employer

Mr. Campbell
February 23, 2009
Page 2
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
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 TI SA: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.

Mr. Campbell
February 23, 2009
Page 3
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
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].
MM:sr
Sincerely,
t4--- Coleen H. Sullins
cc: Benjamin B. Thomas, P.E. — West Consultants, PLLC, 405 South Sterling Street,
Morganton, NC 28665
Iredell County Health Department
DWQ Mooresville Regional Office, Surface Water Protection
Technical Assistance and Certification Unit
Point Source Branch, NPDES Program
Daniel Blaisdell, P.E.
Michelle McKay, E.I.
ATC File