NC0048861_Authorization to Construct_20150827

NPDES DOCUHENT !CANNING: COVER SHEET
NPDES Permit:
NC0048861
Creswell WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
August 27, 2015
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Town of Creswell
Wastewater Treatment Plant Improvements
A To C No. 048861A02
Issued February 29, 2012
FINAL
Engineer's Certification
GAtztvt, � , as a duly registered Professional Engineer in
the State of North Carolina, having been authorized to obsery o cally eekly/full time)
the construction of the modifications and improvements to the Town f Creswell WWTP,
located on NCSR 1155 in Washington County for the Town of Creswell, hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the following
construction:
RECr" 'ED
AUG 2 7 2015
Replacement of the existing lagoon WWTP with a new 0.200 MGD WWTP system
consisting of: an influent flow splitter box structure; influent pump station with two (2)
350 gpm pumps; influent flow meter, two (2) 350 gpm mechanical fme (2 mm) bar
screens; one (1) screenings compactor;
EITHER (Base Bid) a 0.200 MGD membrane bioreactor (MBR) system, consisting of:
two (2) 22,400 gallon anoxic tanks with two 2.3 Hp submersibile mixers; two (2)
42,300 gallon anoxic basins each with a 2.3 hp submersible mixer; two (2) 42,300
gallon aerobic basins with fme bubble diffusers, two (2) 278 gpm NRCY recycle
humps and three (3) 245 scfm aeration process blowers; two (2) 34,800 gallon
membrane bioreactor basins containing a total of 8 membrane units rated and three (3)
630 scfm MBR process (scour) blowers; two (2) 195 gpm permeate pumps with two
(2) flow meters; two (2) 208 gpm RAS pumps with two (2) flow meters; one (1) 150
gpm WAS pump with flow meter, a sodium hydroxide storage and feed system; an
alum storage and feed system;
OR (Alternate No. 1
train consisting of a 17,
104,000 gallon aerobic zon • wi
pump, and a 352 ft2 secondar
RAS/WAS pump station wi
two (2) 72 ft2 tertiary sand ` her ce
0.200 MGD
0 gallo
ual train concrete pa
oxic zone an. ? 2.3
fine bubble diffuser
huffier; three (3) 492 s
1105 gpm RAS pu
with 16,200 g
ge WWTP with each
submersible mixer, a
80 gpm NRCY recycle
aeration blowers;
da 150gpmWASpump;
ell with dual 1,080
gpm backwash pumps, d 1216 scf . it scour blowers, and a 19,440 gallon mudwell
and dual 120 gpm pumps; alkalinity storage and feed system;
OR (Alternate No. 2) a 0.200 • : GD d train steel ► ackage
consisting of a 17,950 gallon an is one with a 7.
104,000 gallon aerobic zone, a 28 ► • m NRCY recycl
clarifier; RAS/WAS pump station ''th dual 105 gpm
WAS pump; three (3) 492 scfm a atl ' n blowers; four
cells with 15,625 gallon clearw and : ur (4) 521 gp
scfm air scour blowers, and a 6,400 gal on mudwel
alkalinity storage and feed system;
SP,/
with each train
mersible mixer, an
p, a 352 ft2 secondary
pumps and a 150 gpm
) .7 ft2 tertiary sand filter
bac . ash pumps, dual 105
ith dual 138 gpm pumps;
I& c,dr

Town of Creswell
Wastewater Treatment Plant Improvements
A To C No. 048861A02
Issued February 29, 2012
R EA\I
o,I
1natkag
iN Engineer's Certification
I, b 65, GAr-r,N' , as a duly registered Professional Engineer in
the State of North Carolina, having een authorized to observe ( • ' all eekly/full time)
the construction of the modifications and improvements to the Town o Creswell WWTP,
located on NCSR 1155 in Washington County for the Town of Creswell, hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the following
construction:
mciceas bJWT' 't'C.T enah ooA
Replacement of the existing lagoon WWTP with a new 0.200 MGD WWTP system
consisting of: an influent flow splitter box structure; influent pump station with two (2)
350 gpm pumps; influent flow meter; two (2) 350 gpm mechanical fme (2 mm) bar
screens; one (1) screenings compactor;
EITHER (Base Bid) a 0.200 MGD membrane bioreactor (MBR) system, consisting of:
two (2) 22,400 gallon anoxic tanks with two 2.3 Hp submersibile mixers; two (2)
42,300 gallon anoxic basins each with a 2.3 hp submersible mixer; two (2) 42,300
7 gallon aerobic basins with fme bubble diffusers, two (2) 278 gpm NRCY recycle
pumps and three (3) 245 scfm aeration process blowers; two (2) 34,800 gallon
membrane bioreactor basins containing a total of 8 membrane units rated and three (3)
630 scfm MBR process (scour) blowers; two (2) 195 gpm permeate pumps with two
(2) flow meters; two (2) 208 gpm RAS pumps with two (2) flow meters; one (1) 150
gpm WAS pump with flow meter; a sodium hydroxide storage and feed system; an
alum storage and feed system;
OR (Alte , ate No. 1) a 0. 00 MG • ual train con r ete packag= WWTP
train cons' g of a 17,9.0 gallon an + : is zone = ► d a 2.3 Hp sub ersibl
104,000 gallo aerobi zone with fine ubble dY sers, a 280 gpm
pump, and a 3 = ft2 condary clarifier; ee ) 492 scfm aeration
RAS/WAS pump . . tion with dual 105 gp pumps and a 15gp
two (2) 72 ft2 to sand filter cells wi - 1. 200 gallon clearwe with
gpm backwas ' . umps dual 216 scfm . sco blowers, and a 1► ,440 gal
and dual 120 : • m pum ; : • linity storage and ed system;
OR (Alternate
consisting of a 1
104,000 gallon a
clarifier; RAS/W
WAS pump; three (3
cells with 15,625 llo
scfm air scour b wers,
alkalinity storage and fee
o. 2) a 0.2
950 ga
bic
MGD dual ain steel
anoxic zone ith a 7.
ne, a 280 gpm Y r
p station with dual
492 scfm aeration blow
clearwell and four
d a 16,400 gallo
system;
mud
w• each
mixer, a
Y recycle
owers;
WAS pump;
ual 1,080
n mudwell
ckage ' with ea
Hp submersible
ycle pump, a 352
gpm RAS pumps and
; four (4) 34.7 ft2 tert
1 gpm backwash p
11 with dual 13 : gpm
train
an
condary
150 gpm
sand filter
ual 105
pu . s;

Town of Creswell
Wastewater Treatment Plant Improvements
A To C No. O48861AO2
Issued February 29, 2012
Also with:
two (2) bank UV disinfection system, each rated for 0.50 MGD peak flow; cascade
aeration; effluent pump station consisting of two (2) 350 gpm pumps with effluent flow
meter; two (2) 65,000 gallon (each) aerobic digesters with coarse bubble diffusers and
two (2) 285 scfm blowers; one (1) 500 gpm sludge transfer pump; a sludge loading
station; a 450 kW emergency generator; administration and control building; and
associated yard piping, electrical work and control systems, 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.
We understand that the new limits associated with the modifications to expand to 0.200 MGD
now apply.
Signature
Date .�i/e27//�
Registration No. &aB 9/O
Mail this Certification to: Attn: Ken Pohlig, F.E.
Infrastructure Finance Section
DENR/DWQ
1633 Mail Service Center
Raleigh, NC 27699-1633
•
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411004‘

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ern
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
February 29, 2012
The Honorable W. J. White, Mayor
Town of Creswell
Post Office Box 68
Creswell, North Carolina 27928
SUBJECT: Authorization to Construct
A to C No. 048861A02
Town of Creswell
Creswell WWTP
Wastewater Treatment Plant Improvements
Washington County
Dear Mayor White:
A letter of request for an Authorization to Construct was received September 23, 2011,
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 0.064 MGD Town of Creswell Wastewater
Treatment Plant, with discharge of treated wastewater into the Scuppernong River in the
Pasquotank River Basin.
This authorization results in an increase in design and permitted capacity to 0.200 MGD,
and is awarded for the construction of the following specific modifications:
Replacement of the existing lagoon WWTP with a new 0.200 MGD WWTP system
consisting of: an influent flow splitter box structure; influent pump station with two (2)
350 gpm pumps; influent flow meter; two (2) 350 gpm mechanical fine (2 mm) bar
screens; one (1) screenings compactor;
EITHER (Base Bid) a 0.200 MGD membrane bioreactor (MBR) system, consisting of:
two (2) 22,400 gallon anoxic tanks with two 2.3 Hp submersibile mixers; two (2)
42,300 gallon anoxic basins each with a 2.3 hp submersible mixer; two (2) 42,300
gallon aerobic basins with fine bubble diffusers, two (2) 278 gpm NRCY recycle
pumps and three (3) 245 scfm aeration process blowers; two (2) 34,800 gallon
membrane bioreactor basins containing a total of 8 membrane units rated and three (3)
630 scfm MBR process (scour) blowers; two (2) 195 gpm permeate pumps with two
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: www.ncwaterauality.orq
An Equal Opportunity \ Affirmative Action Employer
North Carolina
Xaturaiij

'r
The Honorable W. J. White, Mayor
February 29, 2012
Page 2
(2) flow meters; two (2) 208 gpm RAS pumps with two (2) flow meters; one (1) 150
gpm WAS pump with flow meter; a sodium hydroxide storage and feed system; an
alum storage and feed system;
OR (Alternate No. 1) a 0.200 MGD dual train concrete package WWTP with each
train consisting of a 17,950 gallon anoxic zone and a 2.3 Hp submersible mixer, a
104,000 gallon aerobic zone with fine bubble diffusers, a 280 gpm NRCY recycle
pump, and a 352 ft2 secondary clarifier; three (3) 492 scfm aeration blowers;
RAS/WAS pump station with dual 105 gpm RAS pumps and a 150 gpm WAS pump;
two (2) 72 ft2 tertiary sand filter cells with 16,200 gallon clearwell with dual 1,080
gpm backwash pumps, dual 216 scfm air scour blowers, and a 19,440 gallon mudwell
and dual 120 gpm pumps; alkalinity storage and feed system;
OR (Alternate No. 2) a 0.200 MGD dual train steel package WWTP with each train
consisting of a 17,950 gallon anoxic zone with a 7.5 Hp submersible mixer, an
104,000 gallon aerobic zone, a 280 gpm NRCY recycle pump, a 352 ft2 secondary
clarifier; RAS/WAS pump station with dual 105 gpm RAS pumps and a 150 gpm
WAS pump; three (3) 492 scfm aeration blowers; four (4) 34.7 ft2 tertiary sand filter
cells with 15,625 gallon clearwell and four (4) 521 gpm backwash pumps, dual 105
scfm air scour blowers, and a 16,400 gallon mudwell with dual 138 gpm pumps;
alkalinity storage and feed system;
Also with:
two (2) bank UV disinfection system, each rated for 0.50 MGD peak flow; cascade
aeration; effluent pump station consisting of two (2) 350 gpm pumps with effluent
flow meter; two (2) 65,000 gallon (each) aerobic digesters with coarse bubble diffusers
and two (2) 285 scfm blowers; one (1) 500 gpm sludge transfer pump; a sludge
loading station; a 450 kW emergency generator; administration and control building;
and associated yard piping, electrical work and control systems, 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. NC0048861 issued July 9, 2009, and shall be subject to revocation unless the
wastewater treatment facilities are constructed in accordance with the conditions and limitations
specified in Permit No. NC0048861.
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

The Honorable W. J. White, Mayor
February 29, 2012
Page 3
be required by the Division, such as the construction of additional or replacement wastewater
treatment or disposal facilities.
The Washington 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: 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.

The Honorable W. J. White, Mayor
February 29, 2012
Page 4
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].
Sincerely,
ofo)
Charles Wakild, P.E.
kp:sr
cc: Charles W. Davis, P.E. - The Wooten Company, 120 North Boylan Avenue, Raleigh, NC 27603
Washington County Health Department
DWQ Washington Regional Office, Surface Water Protection
DWQ, Technical Assistance and Certification Unit
DWQ, Point Source Branch, NPDES Program
Ken Pohlig, P.E.
ATC File