NC0024538_Authorization to Construct_20160422

NPDES DOCUMENT SCANNING. COVER :SHEET
NPDES Permit:
NC0024538
Shelby / First Broad River WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct
(AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Inspection
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
April 22, 2016
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FYZ
hdrinc.com
April 22, 2016
Mr. Ron Berry
Complex Permitting Unit
DENR/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: City of Shelby
FBR WWTP Upgrades Project
HDR Project 233904 I HDR File: C-104
Authorization to Construct No. 024538A02
Subject: Engineer's Certification
Dear Mr. Berry:
RECEIVEDINCDEQ/DWR
APR 25 2016
Water Quality
Permitting Section
I'm pleased to submit the Engineer's Certification on behalf of the City of Shelby for the First Broad
River Wastewater Treatment Plant Upgrades Project.
Please contact us at [phone] if you have any questions.
Sincerely,
HDR Engineering, Inc. of the Carolinas
Will Shull
Project Engineer
cc: David Hux, City of Shelby
Brad Green, City of Shelby
Mary Knosby, HDR
Christopher Crotwell, HDR
Angie Hudson, HDR
440 S Church Street, Suite 1000, Charlotte, NC 28202-2075
704.338.6700
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City of Shelby
First Broad River WWTP
Authorization to Construct No. 024538A02
Issued,February 26, 2014
C S PY24Jrc r. : C s 3"bz—v
Engineer's Certification
Will Shull , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to observe kperiodicallylweekly/fill time)
the construction of the modifications and improvements to the First Broad River Wastewater
Treatment Plant, located in Cleveland 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 one (1) new inclined rotating drum screen system with piping and controls;
installation of one (1) new aeration basin distribution box with piping and controls;
installation of one (1) new (third) 0.75 MG aeration basin partitioned with 0.125 MG
anoxic and 0.625 MG aerobic zones and consisting of three (3) submersible mixers, fine
bubble diffuser system, one (1) 4,167 GPM maximum variable speed internal recycle
pump, piping and other controls; installation of three (3) new 3,550 SCFM blowers with
piping and controls; installation of one (1) new (third) non -potable 225 GPM pump with
piping and controls; installation of two (2) new RAS flow meters stations; installation of
one (1) new 0.11 MG gravity sludge thickener with piping and controls; installation of one
(1) new thickened sludge pump station consisting of two (2) grinders, two (2) TWAS 100
GPM pumps, piping and controls; installation of one (1) new sludge receiving station
consisting of 15 ft x 15 ft drying bed basin, liquid collection system, piping; conversion
of two (2) existing (first and second) 0.75 MG aeration basins to partitioning for 0.125
MG anoxic and 0.625 aerobic zones and the addition to each basin of three (3) new
submersible mixers, new fme bubble diffuser system, one (1) new 4,167 GPM maximum
variable speed internal recycle pump, new piping and other controls; conversion of two (2)
existing 0.p4 MG gravity thickener tanks to equalization basins with the addition to each
tank of two (2) new equalization 44.5 GPM pumps, new piping and controls; in
conformity with the project plans, specifications, and other supporting data subsequently
filed and approved by the Department of Environment and Natural Resources.
I certify that the construction of the above referenced project was observed to be built within
substantial come fiance, intent and in conformity with all applicable regulations and statutes and
the project plans;specifications, and other supporting documentation comprising the
Authorization to Construct Perrot Application package.
Signature
Date 4/i5/I6
Mail this Certification to:
Registration No. 043278
Attn: Ron Berry
Complex Permitting Unit
DENR/DWR/Water Quality Programs
1617 Mail Service Center
Raleigh, NC 27699-1617
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Pat McCrory
Govemor
AtrA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Water Quality Programs
Thomas A. Reeder
Director
• February 26, 2014
Brad Caldwell, Public Utilities Director
City of Shelby
924 West Grove Street
Shelby, NC 28�150
Dear Mr. Caldwell:
John E. Skvarla, III
Secretary
SUBJECT: Authorization to Construct
A to C No. 024538A02
City of Shelby
First Broad River WWTP
A letter of request for an Authorization to Construct was received December 3, 2013, 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 6.0 MGD First Broad River WWTP, with discharge
of treated wastewater into the First Broad River in the Broad 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 one (1) new inclined rotating drum screen system with piping and
controls; installation of one (1) new aeration basin distribution box with piping and
controls' installation of one (1) new (third) 0.75 MG aeration basin partitioned with
0.125 MG anoxic and 0.625 MG aerobic zones and consisting of three (3)
submersible mixers, fine bubble diffuser system, one (1) 4,167 GPM maximum
variable speed internal recycle pump, piping and other controls; installation of three
(3) new ,550 SCFM blowers with piping and controls; installation of one (1) new
(third) r on -potable 225 GPM pump with piping and controls; installation of two (2)
new RA. flow meters stations; installation of one (1) new 0.11 MG gravity sludge
thickener with piping and controls; installation of one (1) new thickened sludge pump
station consisting of two (2) grinders, two (2) TWAS 100 GPM pumps, piping and
controls; installation of one (1) new sludge receiving station consisting of 15 ft x 15 ft
drying bed basin, liquid collection system, piping; conversion of two (2) existing
(first and second) 0.75 MG aeration basins to partitioning for 0.125 MG anoxic and
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] Fax: [phone]
Internet: www.ncwateraualitv.ort
An Equal OpportunityW flrmative Action Employer

Brad Caldwell, Public Utilities Director
February 26, 2014
Page 2 of 3
0.625 aerobic zones and the addition to each basin of three (3) new submersible
mixers, new fine bubble diffuser system, one (1) new 4;167 GPM maximum variable
speed internal recycle pump, new piping and other controls; conversion of two (2)
.existing 0.04 MG gravity thickener tanks to equalization basins with the addition to
each tank of two (2) new equalization 44.5 GPM pumps, new piping and controls; 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. NC0024538 issued August 1, 2010, and shall be subject to revocation
unless the wastewater treatment facilities are constructed in accordance with the conditions and
limitations specified in Permit No. NC0024538.
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: NPDES Unit, DWRIDENR, 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.

Brad Caldwell, Public Utilities Director
February 26, 2014
Page 3 of 3
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.
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 information, please contact Ron Berry at
telephone number [phone].
Sincere
Thomas A. Reeder
cc: Christopher Crotwell, P.E.
HDR Engineering, Inc of the Carolinas
440 South Church Street
Suite 1000
Charlotte, NC 28202
DWR/Mooresville Regional Office, Water Quality Programs
Central Files NC0024538
NPDES File NC0024538
Without Engineer's Certificate attached:
Cleveland County Health Department
DWI/ Ken Pohlig