NC0049662_Authorization to Construct_20160212

PAT MCCRORY
•
Governor
DONALD R. VAN DER VAART
Secretory
Water Resources S. JAY ZIMMERMAN
ENVIRONMENTAL QUALITY
February 12, 2016 °Oector
Mr. Thomas Roberts
President
Aqua North Carolina, Inc.
202 MacKenan Ct.
Cary,North Carolina 27511
SUBJECT: Authorization to Construct
A to C No. 049662A01
Aqua North Carolina, Inc.
Hawthorne Subdivision WWTP
Dear Mr. Roberts:
A letter of request for an Authorization to Construct was received November 17, 2015, by
the Division of Water Resources (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 0.25 MGD Hawthorne Subdivision WWTP, with
discharge of treated wastewater into the Upper Barton Creek in the Neuse River Basin.
This authorization results in no increase in design or permitted capacity and is awarded for
the construction of the following specific modifications:
•
Reconfigure two (2) existing 50,000 gallon aeration basins, each basin to provide a new
14,875 gallon anoxic zone consisting of one (1) 115 GPM at 27 ft TDH MLSS recycle
VFD pump, air diffuser system,piping, and controls and a new 35,125 gallon oxic zone
consisting of one (1) 2.4 HP submersible mixer, piping, and controls; one (1) spare 115
GPM at 27 ft TDH MLSS recycle pump, one (1) spare 2.4 HP submersible mixer;
reconfigure one(1)existing 124,000 gallon aeration basin to provide a new 44,790 gallon
anoxic zone with one (1) 250 GPM at MLSS recycle VFD pump, air diffuser system,
piping, and controls and a new 79,030 gallon oxic zone with two (2) 2.4 HP submersible
mixers, piping, and controls; reconfigure one (1) existing 124,000 gallon aeration basin
to provide a new 48,790 gallon anoxic zone with (1) 250 GPM at 26 ft TDH MLSS
recycle VFD pump, air diffuser system, piping, and controls and a new 75,210 gallon
oxic zone with two (2) 2.4 HP submersible mixers, piping, and controls; one (1) spare
250 GPM at 26 ft TDH MLSS recycle pump; relocation of trains 1 &2 existing blower
and the addition two (2) new 180 CFM blowers with VFD, piping, and controls;
relocation of trains 3 &4 existing blower and the addition of two (2)new 430 CFM with
blowers with VFD; in conformity with the project plans, specifications, and other
supporting data subsequently filed and approved by the Department of Environmental
Quality.
State of North Carolina I Environmental Quality I Water Resources
1617 Mail service Center I Raleigh,North Carolina 27699-1617
Location:512 N.Salisbury St Raleigh,North Carolina 27604,Archdale Building 9th Floor
Phone:[phone]/Fax•919 807 9489
_ _ • •

Thomas Roberts,President Aqua North Caroline,Inc. •1
February 12,2016
Page2of3
This Authorization to Construct is issued in accordance with Part III, Paragraph A of
NPDES Permit No. NC0049602 issued effective November 1, 2013, and shall be subject to
revocation unless the wastewater treatment facilities are constructed in accordance with the
conditions and limitations specified in Permit No. NC0049662.
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 Raleigh Regional Office,telephone number(919)791 —4200, 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: Division of Water Resources, WQ
Permitting Section—NPDES, 1617 Mail Service Center, Raleigh,NC 27699-1617.
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

Thomas Roberts,President Aqua North Caroline, Inc.
February 12, 2016
Page 3 of 3
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.
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.
If you have any questions or need additional infoimation, please contact Ron Berry at
telephone number [phone].
Sincerely
/2erh,./
cbuitk6
S. Jay Zimmerman
Director, Division of Water Resources
cc: Mark Bubel, P.E.
Aqua America, Inc.
762 W. Lancaster Ave.
Bryn Mawr, PA
DWR/Raleigh Regional Office, Water Quality Programs
Central Files
NPDES File
Without Engineer's Certificate attached:
Wake County Health Department

Aqua North Carolina, Inc.
Hawthorne Subdivision WWTP
Authorization to Construct No. 049662A01
Issued February 12, 2016
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 Hawthorne Subdivision
Wastewater Treatment Plant, located in Wake County, hereby state that, to the best of my
abilities, due care and diligence was used'in the observation of the following construction:
Reconfigure two (2) existing 50,000 gallon aeration basins, each basin to provide a new
14,875 gallon anoxic zone consisting of one (1) 115 GPM at 27 ft TDH MLSS recycle
VFD pump, air diffuser system, piping, and controls and a new 35,125 gallon oxic zone
consisting of one (1) 2.4 HP submersible mixer, piping, and controls; one (1) spare 115
GPM at 27 ft TDH MLSS recycle pump, one (1) spare 2.4 HP submersible mixer;
reconfigure one (1) existing 124,000 gallon aeration basin to provide a new 44,790 gallon
anoxic zone with one (1) 250 GPM at MLSS recycle VFD pump, air diffuser system,
piping, and controls and a new 79,030 gallon oxic zone with two (2) 2.4 HP submersible
mixers,piping, and controls; reconfigure one (1) existing 124,000 gallon aeration basin to
provide a new 48,790 gallon anoxic zone with (1) 250 GPM at 26 ft TDH MLSS recycle
VFD pump, air diffuser system, piping, and controls and a new 75,210 gallon oxic zone
with two (2) 2.4 HP submersible mixers, piping, and controls; one (1) spare 250 GPM at
26 ft TDH MLSS recycle pump; relocation of trains 1 &2 existing blower and the
addition two (2) new 180 CFM blowers with VFD, piping, and controls; relocation of
trains 3 & 4 existing blower and the addition of two (2) new 430 CFM with blowers with
VFD; in conformity with the project plans, specifications, and other supporting data
subsequently filed and approved by the Department of Environmental Quality.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance, intent and in conformity with all applicable regulations and statutes and
the project plans, specifications, and other supporting documentation comprising the
Authorization to Construct Permit Application package.
Signature Registration No.
Date
Mail this Certification to: Attn: Ron Berry SEAL
Complex Permitting Unit
DEQ/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh,NC 27699-1617