NC0021555_Authorization to Construct_20150430

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Document Type:
Permit Issuance
Wasteload Allocation
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Authorization to Construe
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Permit Modification
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Engineering Alternatives (EAA)
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Document Date:
April 30, 2015
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Town of Newport
Wastewater Treatment Plant Improvements
A To C No. 021555A04
Issued February 27, 2013
Engineer's Certification
I, 9611 6-1&WSi •r\ , 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 Town of Newport WWTP, located
on Kirby Lane in Carteret County for the Town of Newport, hereby state that, to the best of my
abilities, due care and diligence was used in the observation of the following construction:
Demolition of the existing grit chamber,-ex-ielatitylpelli; , post -
aeration basin -sI eds - nd , :e ,.uildi - th 7odge-clewate,ing
b, -and e-e€€i4erater-y and
,
installation of the new 1.2 MGD Town of Newport Wastewater Treatment plant,
consisting of a headwork structure, including a Parshall flume flow meter, a 3.0
MGD peak flow mechanical bar screen , a manual
bypass bar screen, a 3.0 MGD peak flow vortex grit removal system with grit
classifier/disposal system with 250 gpm grit pump, and an influent pump static Sob m0 ,; b L.
consisting of two (2) 2,084 gpm ve#iebe pumps -8:51-oft414-843-gpfli
ver i al-torbnre p p; aeration basin distribution box; dual oxidation dit hes, with
each ditch consisting of
a
aerobic oxidation ditch with dual 30 Hp surface aerators; clarifier distribution
box; dual 50-foot diameter, 14-foot side water depth clarifiers, each with a scum
pit and a 20 gpm scum pump; a RAS/WAS Pump Station with dual 1,250 gpm
pumps; dual disk filters, each filter having 4-cloth disks; a 65,000 gallon chlorine
contact basin using liquid sodium hypochlorite; a 12,000 gallon post -aeration
basin using diffusers and a 175 scfm blower; dechlorination using metabisulfite;
effluent pump station with dual 2,083 gpm pumps; -eenversiex
-oxistiog-38-foot-dianieter-(647000-gallorreath
thieke tens;
-station-se
-t-rafisfer-pa p-inst-sl-1 ,
-Rio-stabil'
of-sys.ten,
-sszubber; a- 5 ,
l.ilding; two automatic refrigerated samplers (influent and effluent); a 450 kW
emergency generator; and yard piping and appurtenances, electrical controls,
instrumentation, and site work, 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 compliance and intent of the approved plans and specifications.

Mr. Richard I. Casey, Town Manager
February 27, 2013
Page 6
We understand that the new limits associated with the modifications to expand to 1.2 MGD now
apply.
Signature
Date L`-30 5
Mail this Certification to:
Registration No.
Attn: Ken Pohlig, P.E.
Infrastructure Finance Section
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633
0 337) 0

Pat McCrory
Governor
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Charles Wakild, P.E. John Skvarla
Director Secretary
February 27, 2013
Mr. Richard J. Casey, Town Manager
Town of Nev'port
PO Box 1869
Newport, North Carolina 28570
SUBJECT: Authorization to Construct
A to C No. 021555A04
Town of Newport
Wastewater Treatment Plant Improvements
SRF Project CS370691-02
Dear Mr. Casey:
A letter of request for an Authorization to Construct was received December 3, 2012, 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 modifications to the existing 0.75 MGD Town of Newport WWTP, with
discharge of seated wastewater into the Newport River in the White Oak River Basin.
This authorization results in an increase in design and permitted capacity to 1.2 MGD,
and is awarded for the construction of the following specific modifications
Demolition of the existing grit chamber, oxidation ditch, chlorine contact basin, post-
aeraton basin, sludge drying beds, and various buildings including the sludge dewatering
building and the office and laboratory; and
installation of the new 1.2 MGD Town of Newport Wastewater Treatment plant,
consisting of a headwork structure, including a Parshall flume flow meter, a 3.0 MGD
peak flow mechanical bar screen with screenings compactor, a manual bypass bar screen,
a 3.0 MGD peak flow vortex grit removal system with grit classifier/disposal system with
250 gpm grit pump, and an influent pump station consisting of two (2) 2,084 gpm vertical
turbine pumps and one (1) 833 gpm vertical turbine pump; aeration basin distribution
box; dual oxidation ditches, with each ditch consisting of a 0.17 MG anoxic zone with a 5
Hp mixer, a 0.53 MG aerobic oxidation ditch with dual 30 Hp surface aerators; clarifier
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: www.ncwateraualltv.orq
An Equal opportunity 1 Affirmative Action Employer
S@Elii\v/E
MAR 0 4 2013
DENR-WATER QUALITY
Fr-`,N T ^r,i •"C BRANCH
naCarolina
Vaturally

Mr. Richard J. Casey, Town Manager
February 27, 2013
Page 2
distribution box; dual 50-foot diameter, 14-foot side water depth clarifiers, each with a
scum pit and a 20 gpm scum pump; a RAS/WAS Pump Station with dual 1,250 gpm
pumps; dual disk filters, each filter having 4-cloth disks; a 65,000 gallon chlorine contact
basin using liquid sodium hypochlorite; a 12,000 gallon post -aeration basin using
diffusers and a 175 scfm blower; dechlorination using metabisulfite; effluent pump
station with dual 2,083 gpm pumps; conversion of the two (2) existing 30-foot diameter
(61,000 gallon each) clarifiers to sludge gravity thickeners; replacement of dual 80 gpm
sludge transfer pumps (existing WAS pump station converted to a sludge transfer pump
station); a150 gpm sludge transfer pump installed in the existing 150,000 gallon aerobic
digester; a 50' x 65' Bio-stabilization Building, consisting of the existing 1.5 meter
sludge belt press rated at approximately3,300 dry pounds/hour, sludge transfer screw
auger, a twin-screw sludge/lime mixer, a sulfamic acid feeder system, a sludge feed
piston pump, a Class A insulated sludge reactor rated at 3,260 lbs/hour, and an ammonia
scrubber; a 1,500 ft3 Lime storage silo with lime screw conveyer; a 80' x 65' Biosolids
Storage Covered Area, a 67' x 50' Office/Laboratory/Maintenance Building; two
automatic refrigerated samplers (influent and effluent); a 450 kW emergency generator;
and yard piping and appurtenances, electrical controls, instrumentation, and site work, 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. NC0021555 issued February 15, 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. NC0021555.
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 Wilmington 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.

Mr. Richard _Casey, Town Manager
February 27, 2013
Page 3
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: Infrastructure Finance Section,
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 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.
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 wit any and all statutes, rules, regulations, or ordinances which may be imposed by
other government agencies (local, state, and federal) which have jurisdiction.

Mr. Richard J. Casey, Town Manager
February 27, 2013
Page 4
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].
Sincerely
Charles Wakild, P.E.
kp: sr
cc: Clawson, P.E., Municipal Engineering Services Co., PO Box 97, Garner, NC 27529
Carteret County Health Department
DWQ Wilmington Regional Office, Surface Water Protection
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
SRF File