NC0062740_Draft Permit_20230911

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
Ms. Amanda Berger
Aqua North Carolina, Inc.
202 MacKenan Drive
Cary, NC 27511
Dear Permittee:
d� o
orw
NORTH CAROLINA
Environmental Quality
September 12, 2023
Subject: Draft NPDES Permit NCO062740
Briarwood Farms WWTP
Grade WW-2 WPCS
Wake County
The Division has reviewed your request to renew the subject permit. Enclosed with this letter is a copy
of the draft permit for your facility. Please review this draft carefully to ensure your thorough
understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
y A reopener condition for all Neuse river discharge permits has been added at Part 1. (A.) 4.
Electronic data submission requirements have been updated.
Middle Creek is listed as an impaired stream on North Carolina's 303 (d) list. Currently, the stream
does not meet all water quality standards. If the limitations in the current permits for facilities
discharging to Middle Creek do not result in improved water quality, removal of discharges may be
necessary for the health of the stream.
We will continue to monitor compliance at your facility. If noncompliance with your permit's effluent
limits is shown to be a direct cause of stream degradation, the Division will recommend removal of your
facility's discharge.
The NPDES standard conditions (Parts II, III, and IV) that are a part of the permit are not included in
this draft document (cover, map, and Part I). The conditions are the same as in your current permit
except that agency and division names have been updated. The latest version is available at
https://bit.ly/3k5NFaL and can be viewed online or downloaded as a PDF file.
With this notification, the Division will solicit public comment on this draft permit by publishing a
notice in newspapers having circulation in the general Wake County area, per EPA requirements. Please
provide your comments, if any, to me at the e-mail address below no later than 30 days after
receiving this draft permit.
Following the 30-day public comment period, the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit.
North Carolina Department of Environmental Quality I Division of Water Resources
D E Q
512 North Salisbury Street 1 1617 Mail Sen ice Center I Raleigh. North Carolina 27699-1617
o�.o..m.ox�a i aoxn�
919.707.9000

Page 2 of 2
NPDES Permit NCO062740
If you have questions concerning the draft, please contact me at caroline robinsonC&deq.nc. og_v.
Sincerely,
Environmental Specialist II
NPDES Compliance and Expedited Permitting

Permit NCO062740
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
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
Briarwood Farms WWTP
5049 Derry Down Lane
Apex
Wake County
to receiving waters designated as an unnamed tributary to Middle Creek in the Neuse 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
This permit and authorization to discharge shall expire at midnight on August 31, 2028.
ff the permittee intends to continue to discharge at the facility beyond the term of this permit, a renewal
application must be submitted no later than March 4, 2028 (180 days before the expiration of this
permit).
Signed this day
Richard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

Permit NC0062740
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 0.04 MGD wastewater treatment system with the following
components:
• Dual clarifiers
• UV Disinfection
• Tablet Chlorination
• Tablet Dechlorination
• Flow meter
• Aerobic digester
• Post aeration basin
The facility is located southeast of Apex at the Briarwood Farms Subdivision (5049 Deny Down
lane) in Wake County.
2. Discharge from said treatment works at the location specified on the attached map into an unnamed
tributary to Middle Creek, currently classified C-NSW waters in subbasin 03-04-03 of the Neuse
River Basin.
Page 2 of 8

Permit NCO062740
PART
Grade WW-2 Biological Water Pollution Control System [15A NCAC 08G .0302]
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on effective date of the permit and lasting through expiration, the Permittee is
authorized to discharge from outfall 001. Such discharges shall be limited and monitored' by the Permittee as
specified below:
EFFLUENT CHARACTERISTICS
LIMITS
MONITORING
REQUIREMENTS
Monthly
Daily
Measurement
Sample
Sample
Parameter Code
Average
Maximum
Frequency
Type
Locationl
Flow 50050
0.04 MGD
Continuous
RecordingInfluent
or
Effluent
Total Monthly Flow 82220
Monitor & Report
Monthly
Calculated
Influent or
Effluent
BOD, 5-day (20°C) - Summer
7.5 mg/L
11.25 mg/L
Weekly
Composite
Effluent
C0310
BOD, 5-day (20°C) - Winter
15.0 mg/L
22.5 mg/L
Weekly
Composite
Effluent
C0310
Total Suspended Solids C0530
30.0 m
45.0 m
Weekly
Composite
Effluent
NH3 as N — Summer C0610
1.0 m
5.0 m
Weekly
Composite
Effluent
NH3 as N — Winter C0610
2.0 m
10.0 m
Weekly
Composite
Effluent
Dissolved Oxygen 00300
Daily average > 5.0 mg/L
Weekly
Grab
Effluent
Fecal Coliform (geometric mean)
200 / 100 ml
400 / 100 ml
Weekly
Grab
Effluent
31616
Total Residual Chlorine (TRC)2
17 µg/L
2/Week
Grab
Effluent
50060
Temperature (°C) 00010
Daily
Grab
I Effluent
TKN m C0625
Monitor & Report
Monthly
Composite
Effluent
NO2-N + NO3-N m 00630
Monitor & Report
Monthly
Composite
Effluent
TN (mg/L)3 C0600
Monitor & Report
Monthly
Comnosite
Effluent
TN Load' QM600
Monitor & Report (pounds/month)
Monthly
Calculated
Effluent
QY600
Monitor & Report (pounds/year)s
Annually
Calculated
Effluent
Total Phosphorus C0665
Monthly
Composite
Effluent
pH 00400
Not < 6.0 nor > 9.0
Weekly
Grab
Effluent
Standard Units
Dissolved Oxygen 00300
Weekly
Grab
Upstream &
Downstream
*Summer: April 1— October 31; Winter: November 1— March 31
Footnotes:
1. Upstream = at least 100 feet upstream from the outfall. Downstream = at least 100 downstream from the outfall.
2. TRC monitoring and limit requirements apply only if chlorine or chlorine derivative is used in the treatment process. 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.
3. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen and TKN is Total Kjeldahl
Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
Page 3 of 8

Permit NCO062740
4. TN Load is the mass quantity of Total Nitrogen discharged in a given period of time. See Special Condition A. (2.)
Calculation of TN Loads.
5. See Special Condition A. (3.) Total Nitrogen Allocations.
6. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see A. (5)].
THERE SHALL BE NOT DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAMIN OTHER THAN TRACE
AMOUNTS.
A. (2.) CALCULATION OF TOTAL NITROGEN LOADS
[G.S.143-215.1(b)]
a. The Permittee shall calculate monthly and annual TN Loads as follows:
(1) Monthly TN Load (pounds/month) = TN x TMF x 8.34
where:
TN = the average Total Nitrogen concentration (mg/L) of the composite samples
collected during the month
TMF = the Total Monthly Flow of wastewater discharged during the month (MG/month)
8.34 = conversion factor, from (mg/L x MG) to pounds
(2) Annual TN Load (pounds/year) = Sum of the 12 Monthly TN Loads for the calendar year
b. The Permittee shall report monthly Total Nitrogen results (mg/L and pounds/month) in the discharge
monitoring report for that month and shall report each year's annual results (pounds/year) in the December
report for that year.
A. (3.) TOTAL NITROGEN ALLOCATIONS
[G.S.143-215.1(b)]
a. The following table lists the Total Nitrogen (TN) allocation(s) assigned to, acquired by, or transferred to the
Permittee in accordance with the Neuse River nutrient management rule (T15A NCAC 02B .0713) and the
status of each as of permit issuance. For compliance purposes, this table does not supersede any TN limit(s)
established elsewhere in this permit or in the NPDES permit of a compliance association of which the
Permittee is a Co-Permittee Member.
ALLOCATION
TYPE
SOURCE
DATE
ALLOCATION AMOUNT (1)
STATUS
Estuary
Discharge
(pounds/year)
(pounds/year)
Base
Assigned by Rule
12/7/97:
404
809
Active
(T15A NCAC 02B
4/1/03
.0713)
Footnote:
(1) Transport Factor = 50%
Page 4 of 8

Permit NCO062740
b. Any addition, deletion, or modification of the listed allocation(s) (other than to correct typographical errors)
or any change to Active status of any of the listed allocations shall be considered a major modification of
this permit and shall be subject to the public review process afforded such modifications under state and
federal rules.
A. (4.) PERMIT RE -OPENER: NUTRIENT MANAGEMENT
[NCGS 143-215.1 (b)]
a) Pursuant to N.C. General Statues Section 143-215.1 and implementing rules found in Title 15A of North
Carolina Administrative Code, Subchapter 02H, specifically, 15A NCAC 02H.0112(b)(1) and 02H.0114(a),
and Part II, Sections B.12 and B.13. of this Permit, the Director of DWR may reopen this permit to require
nutrient management measures for the discharge. The results of water quality monitoring, modelling or other
evaluations may require that conditions for total nitrogen and total phosphorus control be imposed on this
permit.
b) The Division may, upon written notification to the permittee, re -open this permit in order to incorporate or
modify effluent limits, monitoring and reporting requirements, and other permit conditions when it deems
such action is necessary to implement TMDL(s) approved by the USEPA.
A. (5.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[NCGS 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.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements [Supersedes 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.
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. The eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
Page 5 of 8

Permit NCO062740
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
following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
See "How to Request a Waiver from Electronic Reporting" section below.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
reported via the eDMR system no later than the last calendar day of the month following the
completed reporting period. 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, 2025, 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. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time
of each electronic submission. The permittee should use the EPA's website resources to identify the
initial recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity
(EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity
for receiving electronic NPDES data [see 40 CFR 127.2 (b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and for each state. Instructions on how to access and use the
appropriate electronic reporting tool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at: https://www.federaire ister.gov/documents/2015/10/22/2015-
24954/national-pollutant-discharge-elimination-system-npdes-electronic-reporting r
Page 6 of 8

Permit NCO062740
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. 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
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://deg.nc.gov/about/divisions/water-resources/edmr
4. Sianatory Requirements (Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (11.) (a) or by a duly authorized representative of that person as described in Part I1,
Section B. (11.) (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://deq.nc.gov/about/divisions/water-resources/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:
"I certify, under penalty of law, that this document and all attachments were prepared under nay
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. "
Page 7 of 8

Permit NCO062740
5. Records Retention [Supplements Section D. (6.)l
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 8

NCO062740 — Briarwood Farms WWTP
AQUA North Carolina
Latitude: 352 41'22" Longitude: 782 48'38"
Stream Class: C-NSW Sub -Basin: 03-04-03
Receiving Stream: Middle Creek
Facility
Location
Wake County
•/v Map not to scale