NC0073539_Draft Permit_20181031

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''a, O,' LINDA CULPEPPER
NORTH CAROLINA Into nn Du eclo,
Environmental Quality
October 31, 2018
Mr. Shannon Becker
Aqua North Carolina, Inc.
202 MacKenan Court
Cary, NC 27511
Subject: Draft NPDES Permit NC0073539
Willowbrook Subdivision WWTP
Grade II Biological WPCS
Mecklenburg County
Dear Mr. Becker:
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to
ensure a thorough understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
> Regulatory citations have been added to the permit.
With this notification, the Division will solicit public comment on this draft permit by publishing a notice in
newspapers having circulation in the general Mecklenburg County area, per EPA requirements. Please
provide your comments, if any,to me 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. If you have questions concerning the draft,please contact
me at the telephone number listed at the bottom of this page, or via e-mail [[e-mail]].
Sincerely,
1
/ I
el/f ---''
Sydney Carpenter
NPDES Program
cc: NPDES File
D Q
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-3712

Permit NC0073539
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
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
Willowbrook Subdivision WWTP
12309 Ramah Creek Court
Huntersville
Mecklenburg County
to receiving waters designated as Ramah Creek in subbasin 03-07-11 of the Yadkin-Pee Dee
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 November 30, 2023.
Signed this day.
rj '; i
Linda Culpepper, Interim Director
Division of Water Resources
By Authority of the Environmental Management Commission

Permit NC0073539
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
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 0.048 MGD wastewater treatment system that
includes the following components:
• Bar screen
• Aeration basin
• Clarifier
• Tablet chlorination w/contact tank
• Dechlorination
• Aerated sludge holding tank
• Continuous flow measurement
• Composite sampler
• Auxillary power back up w/ automatic transfer switch
The facility is located at the Willowbrook Subdivision WWTP [12309 Ramah Creek
Court, Huntersville] in Mecklenburg County.
2. Discharge from said treatment works at the location specified on the attached map
into Ramah Creek, currently classified C waters in sub-basin 03-07-11 of the Yadkin-
Pee Dee River Basin.

Permit NC0073539
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
PART I
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 this permit 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 CHARACTERISTICS LIMITS MONITORING REQUIREMENTS
Monthly Daily Measurement Sample Sample
(eDMR Codes] Average Maximum Frequency Type Location2
Flow 0.048 MGD Continuous Recording Influent or
50050 Effluent
BOD,5-day(20°C)—Summer* 19.0 mg/L 28.5 mg/L Weekly Composite Effluent
C0310
BOD,5-day(20°C)—Winter* 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
C0310
Total Suspended Solids 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
C0530
NH3 as N—Summer* 11.0 mg/L 35.0 mg/L 2/Month Composite Effluent
C0610
NH3 as N—Winter" Weekly Composite Effluent
C0610
Dissolved Oxygen Daily Average>5.0 mg/L Weekly Grab Effluent
00300
Fecal Coliform(geometric mean) 200/100 ml 400/100 ml Weekly Grab Effluent
31616
Total Residual Chlorine3 28 pgIL 2/Week Grab Effluent
50060
Temperature(°C) Daily Grab Effluent
00010
pH Not<6.0 nor>9.0 Weekly Grab Effluent
00400 Standard Units
Dissolved Oxygen WeeklyGrab Upstream&
00300 Downstream
Temperature(°C) WeeklyGrab Upstream&
00010 Downstream
*Summer:April 1—October 31
*Winter: November 1—March 31
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR
system [see A. (2)].
2. Upstream: above the discharge point;Downstream: 0.6 mile below the discharge point at NCSR 2438.
3. TRC limit and monitoring requirements apply only if chlorine is added to disinfect. The Permittee shall
report all effluent TRC values reported by a NC-certified laboratory [including field-certified]. Effluent
values< 50 pg/L will be treated as zero for compliance purposes.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS

Permit NC0073539
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
A. (2.) 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.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting [Supersedes Section D. (2.) and Section E. (5.) (a)1
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. 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 DEQ/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;

Permit NC0073539
y Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
• 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: http://www2.epa.gov/compliance/final-national-pollutant-
discharge-elimination-system-np des-electronic-reporting-rule.
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:
https://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory 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 II, 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:

Permit NC0073539
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302] k
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 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."
5. Records Retention [Supplements Section D. (6.)1
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].

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Willowbrook Subdivision WWTP Facility • •
NPDES Permit NC0073539
Location
Latitude: 35°26'38" Sub-Basin: 03-07-11
L,ongitude: 80°49'09 Receiving Stream: Ramah Creek
Quad Name: Cornelius INCitiliMecklenburg County
Stream Class: C (Map not to scale)