NC0047384_Authorization to Construct_20180419

ROY COOPER
Gamma,
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`'`a MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Water Resources Intel on Duector
ENVIRONMENTAL QUALITY
April 19, 2018
Mr. Steven D. Drew
Director
Water Resources Department
2602 South Elm-Eugene Street
Greensboro,North Carolina 27406
SUBJECT: Authorization to Construct
A to C No. 0473 84A09
City of Greensboro
T.Z. Osborne WWTP
NPDES Permit No.NC0047384
Dear Mr. Drew:
A letter of request for an Authorization to Construct was received February 15, 2018, 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 40 MGD T.Z. Osborne WWTP, with discharge of
treated wastewater into the South Buffalo Creek in the Cape Fear 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 belt filter press dewatering system rated for 2,000 dry lb/hr with screw
conveyor, piping and controls; relocation of existing rotary fan press dewatering system,
piping and controls; installation of two (2) 60 GMP 5 HP progressive cavity sludge pumps
with VFD, piping and controls; installation of two (2) 10 GPM 1 HP progressive cavity
polymer feed pumps with VFD,piping and controls; in conformity with the project plans,
specifications, and other supporting documentation comprising the ATC Permit
Application package submitted to the Department of Environmental Quality.
This ATC is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0047384 issued effective July 1,2014, and shall be subject to revocation unless the wastewater
treatment facilities are constructed in accordance with the conditions and limitations specified in
Permit No. NC0047384.
It is the Owner's responsibility to ensure that the as-constructed project meets the
requirements of all applicable regulations and statutes, the ATC Permit Application package, and
all of the requirements contained herein. Failure to comply may result in penalties in accordance
with North Carolina General Statute §143-215.6A through §143-215.6C.
State of North Carolina I Environmental Quality 1 Water Resources
512 N Salisbury Street 11617 Mail service Center I Raleigh,North Carolina 27699-1617
Phone [phone]

Mr. Steven D. Drew,Director
April 19, 2018
Page 2 of 3
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 Winston-Salem Regional Office,telephone number 336-776-9800, 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 and the ATC Permit Application package.
Mail the Certification to: Division of Water Resources, WQ Permitting — 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 cf 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 project plans and specifications shall be maintained on file by the
Permittee for the life of the facility.
During the construction of he 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. Steven D.Drew,Director
April 19, 2018
Page 3 of 3
Prior to entering into any contract(s) for construction, the recipient must have obtained all
applicable permits from the State.
The issuance of this ATC 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 information, please contact Bing Bai at
telephone number(919) 807-6389.
Sincerely,
8,-- g>
-Fr Linda Culpepper
Interim Director, Division of Water Resources
With Engineer's Certificate attached:
cc: DWR Winston-Salem Regional Office, Water Quality Programs
Central Files
ecopy: Dennis Kachmarsky, P.E.
Arcadis G&M of North Carolina, Inc.
Email: [e-mail]
NPDES File
Without Engineer's Certificate attached:
cc: Guilford County Health

City of Greensboro
T.Z. Osborne WWTP
Authorization to Construct No. 047384A09
Issued April 19,2018
NPDES Permit No.NC0047384
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 T.Z. Osborne Wastewater
Treatment Plant, located in Guilford County,hereby state that,to the best of my abilities, due
care and diligence was used in the observation of the following construction:
Installation of belt filter press dewatering system rated for 2,000 dry lb/hr with
screw conveyor,piping and controls;relocation of existing rotary fan press
dewatering system,piping and controls; installation of two (2) 60 GMP 5 HP
progressive cavity sludge pumps with VFD,piping and controls; installation of
two (2) 10 GPM 1 HP progressive cavity polymer feed pumps with VFD,piping
and controls; in conformity with the project plans, specifications, and other
supporting documentation comprising the ATC Permit Application package
submitted to 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
7/ \
Mail this Certification to: Attn: Bing Bai SEAL
Complex Permitting Unit i
DEQ/DWR/Water Quality Programs /
1617 Mail Service Center
Raleigh,NC 27699-1617