NC0057703_Final Permit_20170605

Water Resources
ENVIRONMENTAL QUALITY
June 5, 2017
Mr. Shannon Becker
Aqua North Carolina, Inc.
202 Mackenan Court
Cary, North Carolina 27511
ROY COOPER
Govemor
MICHAEL S. REGAN
Secreta v
S. JAY ZIMMERMAN
Subject: NPDES PERMIT ISSUANCE
Permit Number NCO057703
The Cape WTP
Grade 2
New Hanover County
Dear Permittee:
Director -
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge permit. This permit is issued pursuant to
the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between
North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently
amended).
The final permit includes the following significant changes from the existing permit:
➢ Section A. (6) has been added to require electronic submission of effluent data. Federal regulations
require electronic submittal of all discharge monitoring reports (DMRs).
➢ Regulatory citations have been added to the permit.
➢ Total suspended solids limits in Section A. (2) have been changed.
➢ Components list has been updated.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30)
days following receipt of this letter. This request must be in the form of a written petition, conforming to
Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings
(6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision
shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division may
require modification or revocation and reissuance of the permit. This permit does not affect the legal
requirements to obtain any other Federal, State, or Local governmental permit that may be required.
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
https://deq.nc.govlaboutldivisionslwater-resourceslwater-resources-pennitslwastewater-branchlnpdes-wastewater-permits

If you have any questions or need additional information, please do not hesitate to contact Brianna
Young of my staff at [phone] or via e-mail [[e-mail]].
nee ly,
S. Jay Zimmerman, R
cc: NPDES Files
Central Files
Wilmington Regional Office

Permit NCO057703
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Aqua North Carolina, Inc.
is hereby authorized to discharge wastewater from a facility located at
The Cape WWTP
900 Cape Boulevard
Wilmington
New Hanover County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV
hereof.
This permit shall become effective July 1, 2017.
This permit and authorization to discharge shall expire at midnight on December 31, 2021.
Signed this day June 5, 2017.
c
is
ay Zimmerman, P.G.
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 9

Permit NC0057703
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES permits issued to this facility, whether for operation or discharge are hereby
revoked. As of this permit issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terms, and provisions included herein.
Aqua North Carolina, Inc. is hereby authorized to:
1. Continue to operate an existing 0.260 MGD wastewater treatment system that includes the following
components:
♦ 2 — 30,000 gallon package plants
♦ 2—100,000 gallon package plants
♦ Influent pump station
♦ Bar screen
♦ Flow splitting device
♦ 56,000 gallon sludge digester/storage tank
♦ Chlorination (Liquid)
♦ Chlorine contact chamber
♦ Dechlorination (Liquid)
♦ Recording flow meter
♦ Effluent pump station
♦ Eight -inch force main (approximately 7750 feet)
♦ 275 kW standby generator with manual transfer switch
♦ 100,000 surge tank and headworks
The facility is located at 900 The Cape Boulevard, Wilmington in New Hanover County.
2. After receiving an Authorization to Construct permit from the Division, expand the wastewater
treatment plant capacity to 0.40 MGD, and
3. After receiving an Authorization to Construct permit from the Division, expand the wastewater
treatment plant capacity to up to 0.75 MGD, and
4. Discharge from said treatment works at the location specified on the attached map into the Cape Fear
River, currently classified SC (PNA) waters in sub -basin 03-06-17 of the Cape Fear River Basin.
Page 2 of 9

Permit NCO057703
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of the permit and lasting until expansion above 0.260
MGD or expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be
limited and monitored 1 by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Daily
Measurement
Sample
Sample
Parameter Code
Average
Maximum
Frequency
Type
Location
Flow
50050
0.260 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day (20°C)
C0310
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
Total Suspended Solids
C0530
30.0 mg/L
45.0 mg/L
Weekly
Composite
Effluent
NH3 as N
C0610
2/Month
Composite
Effluent
Enterococci (geometric mean)
351100 ml
276/100 ml
Weekly
Grab
Effluent
61211
Total Residual Chlorine 2
13 µg/L
2/Week
Grab
Effluent
50060
Temperature (°C)
00010
Weekly
Grab
Effluent
Total Nitrogen (NO2+NO3+TKN)
C0600
Quarterly
Composite
Effluent
Total Phosphorus
C0665
Quarterly
Composite
Effluent
pH
Not < 6.5 nor > 8.5
Weekly
Grab
Effluent
00400
Standard Units
Footnote:
1. Permittee shall submit discharge monitoring reports electronically using the Division's eDMR application
system [see A. (6)].
2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory (including field certified), even if these values fall below 50 µg/L.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS
Page 3 of 9

Permit NCO057703
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning after approval is granted for plant expansion above 0.260 MGD and lasting until
expiration, the Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and
monitored 1 by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS
CHARACTERISTICS
Monthly
Daily
Measurement
Sample
Sample
Parameter Code
Average
Maximum
Frequency
Type
Location
Flow
0.40 MGD
Continuous
Recording
Influent or Effluent
50050
BOD, 5-day (20°C) — Summer*
5.0 mg/L
7.5 mg/L
Weekly
Composite
Effluent
C0310
BOD, 5-day (20°C) — Winter*
10.0 mg/L
15.0 mg/L
Weekly
Composite
Effluent
C0310
Total Suspended Solids
10 mg/L
15 mg/L
Weekly
Composite
Effluent
C0530
NH3 as N — Summer*
2.0 mg/L
10.0 mg/L
2/Month
Composite
Effluent
C0610
_
_ 4.0 mg/L
Composite
Effluent
_
NH3 as N — Winter*
20.0 mg/L
2/Month
C0610
Enterococci (geometric mean)
35/100 ml
276/100 ml
Weekly
Grab
Effluent
61211
Total Residual Chlorine 2
13 µg/L
2/Week
Grab
Effluent
50060
Dissolved Oxygen
Daily average > 6.0 mg/L
Weekly
Grab
Effluent
00300
—
Temperature (°C)
Weekly
Grab
Effluent
00010
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
C0600
Total Phosphorus
Quarterly
Composite
Effluent
C0665
pH
Not < 6.5 nor > 8.5
Weekly
Grab
Effluent
00400
Standard Units
*Summer: April 1 — October 31
*Winter: November 1 — March 31
Footnotes:
1. Permittee shall submit discharge monitoring reports electronically using the Division's eDMR application
system [see A. (6)].
2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory (including field certified), even if these values fall below 50 µg/L.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS
Page 4 of 9

Permit NCO057703
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning upon expansion above 0.400 MGD and lasting until expiration, the
Permittee is authorized to discharge from outfall 001. Such discharges shall be limited and monitored'
by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS
CHARACTERISTICS
Monthly
Daily
Measurement
Sample
Sample
Parameter Code
Average
Maximum
Frequency
Type
Location
Flow
0.750 MGD
Continuous
Recording
Influent or Effluent
50050
BOD, 5-day (20°C) — Summer*
5.0 mg/L
7.5 mg/L
3/week
Composite
Effluent
C0310
BOD, 5-day (20°C) — Winter*
10.0 mg/L
15.0 mg/L
3/week
Composite
Effluent
C0310
Total Suspended Solids
10.0 mg/L
15.0 mg/L
3/week
Composite
Effluent
C0530
NH3 as N— Summer*
2.0 mg/L
10.0 mg/L
3/week
Composite
Effluent
C0610
NH3 as N — Winter*
4.0 mg/L
20.0 mg/L
3/week
Composite
Effluent
C0610
Enterococci (geometric mean)
35/100 ml
276/100 ml
3/week
Grab
Effluent
61211
Total Residual Chlorine 2
_
13 µg/L
3/week
Grab
Effluent
50060
Dissolved Oxygen
Daily average > 6.0 mg/L
3/week
Grab
Effluent
00300
Temperature (°C)
Daily
Grab
Effluent
00010
Total Nitrogen (NO2+NO3+TKN)
Quarterly
Composite
Effluent
C0600
Total Phosphorus
Quarterly
Composite
Effluent
C0665
pH
Not < 6.5 nor > 8.5
3/week
Grab
Effluent
00400
Standard Units
*Summer: April 1 — October 31
*Winter: November 1— March 31
Footnotes:
1. Permittee shall submit discharge monitoring reports electronically using the Division's eDMR application
system [see A. (6)].
2. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory (including field certified), even if these values fall below 50 µg/L.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS
Page 5of9

Permit NCO057703
A. (4.) ENGINEERING ALTERNATIVES ANALYSIS REQUIREMENT
[ 15A NCAC 0211.0105]
Prior to expansion stages, the permittee shall submit a detailed analysis of all available means to dispose
of this facility's wastewater. This Engineering Alternatives Analysis (EAA) shall be prepared in
compliance with the Division's guidance document for EAAs.
If no EAA is submitted, the Division may reopen and modify this permit to increase monitoring
frequencies or change the effluent limits as necessary to protect the receiving stream.
A. (5.) PERMIT RE -OPENER: SUPPLEMENTARY NUTRIENT MONITORING/TMDL
IMPLEMENTATION
[G. S. 143-215.1(b)]
Pursuant to N.C. General Statutes Section 143-215.1 and the implementing rules found in the North
Carolina Administrative Code at 15A NCAC 2H.0112 (b) (1) and 211.0114 (a) and Part II sections B-12
and B-13 of this permit, the Director of DWQ may reopen this permit to require supplemental nutrient
monitoring of the discharge. The purpose of the additional monitoring will be to support water quality
modeling efforts within the Cape Fear River Basin and shall be consistent with a monitoring plan
developed jointly by the Division and affected stakeholders. In addition, the results of water quality
modeling may require that limits for total nitrogen and total phosphorus be imposed in this permit upon
renewal.
The Division may, upon written notification to the Permittee, re -open this Permit in order to incorporate
or modify effluent limitations, monitoring and reporting requirements, and other permit conditions when
it deems such action is necessary to implement TMDL(s) approved by the USEPA.
A. (6) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December
21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Reporting
Records Retention
Monitoring Reports
1. Re ortin2 Reg uirements I Sul) ersedes Section D. 2. and Section E. 5. a
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Page 6of9

Permit NCO057703
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. Until such time that the state's
eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation
(CROMERR), permittees will be required to submit all discharge monitoring data to the state
electronically using eDMR and will be required to complete the eDMR submission by printing,
signing, and submitting one signed original and a copy of the computer printed eDMR to the
following address:
NC DENR / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
mailing address above. See "How to Request a Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month following
the issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Starting on December 21, 2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
Sewer Overflow/Bypass Event Reports;
Pretreatment Program Annual Reports; and
Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a
Waiver from Electronic Reporting" section below).
2. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to
the Division. Requests for temporary electronic reporting waivers must be submitted in writing to
the Division for written approval at least sixty (60) days prior to the date the facility would be
required under this permit to begin submitting monitoring data and reports. The duration of a
temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data
and reports shall be submitted electronically to the Division unless the permittee re -applies for and is
granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting
waivers are not transferrable. Only permittees with an approved reporting waiver request may
Page 7 of 9

Permit NC0057703
submit monitoring data and reports on paper to the Division for the period that the approved,
reporting waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on
the following web page:
http://portal.ncdenr.org/web/�lwq/admin/boWipu/edmr
3. Sienatory Requirements (Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)]
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (I 1.)(a) or by a duly authorized representative of that person as described in Part II,
Section B. (I 1.)(b). A person, and not a position, must be delegated signatory authority for eDMR
reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user
account and login credentials to access the eDMR system. For more information on North
Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit
the following web page:
http://portal.ncdenr.orp,/web/wq/admin/boi,/ipu/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make
the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
7 certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the
possibility of fines and imprisonment for knowing violations. "
4. Records Retention [Supplements Section DA6.)I
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These
records or copies shall be maintained for a period of at least 3 years from the date of the report. This period
may be extended by request of the Director at any time [40 CFR 122.41].
Page 8 of 9

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Aqua North Carolina, Inc.
The Cape WWTP
County: New Hanover Stream Class:
SC (PNA)
Receiving_Stream: Cape Fear River Sub -Basin:
03-06-17
Latitude: 34' 04' 34" Grid/Quad:
Carolina Beach
Longitude: 77' 55' 36" HUCN:
03030005
U
0
Facility
Location
(not to scale) x
NORTH NPDES Permit No. NCO057703
Page 9 of 9