NC0063860_Draft Permit_20200601

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ROY COOPER a -
Governor
MICHAEL S. REGAN t
Secretary
S. DANIEL SMITH w !•
Director "'t a
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NORTH CAROLINA
Environmental Quality
June 1,2020
Ms. Amanda Berger
Aqua North Carolina, Inc.
202 Mackenan Court
Cary,NC 27511
Subject: Draft NPDES Permit NC0063860
Harbor Estates WWTP
Mecklenburg County
Grade II Biological WPCS
Dear Permittee:
The Division has reviewed your request to renew the subject permit. 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:
• Filter Backwash from Ion Exchange Technology water supply well treatment systems:
Fleetwood Acres&Old South Lane added to facility component list.
• Section A. (3.)has been updated to require electronic submission of effluent data
reports (DMRs). Federal regulations require electronic submittal of all discharge
monitoring.
• An updated outfall map has been included.
With this notification,the Division will solicit public comment on this draft permit by publishing a notice in
newspapers having circulation in the general Davidson 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 any questions concerning this permit,please contact
Emily Phillips at [e-mail] or(919) 707-3621.
Sincerely,
,,e
Emily Phillips
Compliance and Expedited Permitting Unit
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.gov/aboubdivisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits

Permit NC0063860
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 provision 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
Harbor Estates WWTP
Pine Harbor Rd (NCSR 1113), Charlotte 28278
Mecklenburg County
to receiving waters designated as the Catawba River(Lake Wylie)in the Catawba River Basin
in accordance with effluent limits, 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 June 30, 2025.
Signed this day
S.Daniel Smith,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NC0063860
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 0.0416 MGD extended aeration wastewater treatment system with
the following components:
• Bar Screen
• Flow Equalization Basin
• Flow Splitter
• Dual Aeration Basins
• Secondary Clarifier
• Chlorine Contact Basin
• Tablet Chlorination
• Tablet Dechlorination Chamber with Aeration
• Sludge Holding Tank
• Effluent Pump Station
• Effluent Flow Recording Meter
• Standby Power Generator
• Filter Backwash from Ion Exchange Technology water supply well treatment systems:
Fleetwood Acres & Old South Lane
located in Pine Harbor at Harbor Estates on the southside of Pine Harbor Rd (NCSR 1113) in
Mecklenburg County,
2. after receiving an Authorization to Construct from the Division of Water Resources, construct and
after submittal of an Engineers Certification, to operate a wastewater treatment system not to
exceed 0.075 MGD, and
3. discharge from said treatment works at the location specified on the attached map into the Catawba
River (Lake Wylie) [11-(123.5)], a waterbody classified WS-V; B located within sub-basin
03-08-34 [HUC: 03050101] of the Catawba River Basin.
Page 2 of 7

Permit NC0063860
Part I.
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade II Biological Water Pollution Control System [15A NCAC 08G .0302]
During the period beginning on the permit effective date, and lasting until expansion above 0.0416 MGD
or until Expiration, the permittee is authorized to discharge treated wastewater from outfall 001. Such
discharges shall be limited,monitored and reported' by the Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
[Parameter Codes] Monthly Daily Measurement Sample Sample
Average Maximum Frequency Type Location
Flow(MGD) 50050 0.0416 MGD WeeklyContinuous/ Effluent
Recording
BOD, 5-day(20°C)(mg/L) C0310 15.0 mg/L 22.5 mg/L Weekly Composite Effluent
Total Suspended Solids(TSS)(mg/L) C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
Nitrogen,Ammonia Total(as N)(mg/L) C0610 4.0 mg/L 20.0 mg/L Weekly Composite Effluent
Fecal Coliform(#/100m1)2 31616 200/100 ml 400/100 ml Weekly Grab Effluent
Temperature(°C) 00010 Weekly Grab Effluent
Dissolved Oxygen(DO)(mg/L) 00300 Daily average not< 5.0 Weekly Grab Effluent
>6.0 and < 9.0 standard
pH (su) 00400 _ units Weekly Grab Effluent
Total Residual Chlorine(TRC)3(Ng/L) 50060 28 pg/L 2/week Grab Effluent
Total Phosphorus(TP) (mg/L) C0665 Quarterly Composite Effluent
Total Nitrogen(TN)4(mg/L) C0600 Quarterly Composite Effluent
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system
[See A. (3.)].
2. Fecal Coliform shall be calculated using the geometric mean,according to the procedure detailed in Part II.
Section A.
3. 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.
4. For a given wastewater sample, TN = TKN + (NO2-N + NO3-N), where TN is Total Nitrogen and TKN is
Total Kjeldahl Nitrogen,and(NO2-N+NO3-N)is Nitrite/Nitrate Nitrogen.
Conditions:
• All samples collected should be from a representative discharge event.
• There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 7

Permit NC0063860
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning upon expansion to 0.075 MGD and lasting until Expiration,the permittee is
authorized to discharge treated wastewater from outfall 001. Such discharges shall be limited,monitored and
reported'by the Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS1
CHARACTERISTICS
[Parameter Codes] Monthly Daily Measurement Sample Sample
Average Maximum Frequency Type Location
Flow(MGD) 50050 Continuous/
0.075 MGD Weekly Recording Effluent
BOD, 5-day(20°C)(mg/L) C0310 15.0 mg/L 22.5 mg/L Weekly Composite Effluent
Total Suspended Solids(TSS)(mg/L) C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
Nitrogen,Ammonia Total(as N)(mg/L) C0610 4.0 mg/L 20.0 mg/L Weekly Composite Effluent
Fecal Coliform(#/100m1)2 31616 200/100 ml 400/100 ml Weekly Grab Effluent
Temperature(°C) 00010 Weekly Grab Effluent
Dissolved Oxygen(DO)(mg/L) 00300 Daily average not<5.0
mg/L Weekly Grab Effluent
>6.0 and<9.0 standard
pH (su) 00400 — units Weekly Grab Effluent
Total Residual Chlorine(TRC) 3(pg/L) 50060 28 pg/L 2/week Grab Effluent
Total Phosphorus(TP) (mg/L) C0665 2.0 mg/L Quarterly Composite Effluent
Total Nitrogen(TN)4(mg/L) C0600 Quarterly Composite Effluent
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system
[See A. (3.)].
2. Fecal Coliform shall be calculated using the geometric mean,according to the procedure detailed in Part II.
Section A.
3. 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.
4. For a given wastewater sample, TN = TKN + (NO2-N + NO3-N), where TN is Total Nitrogen and TKN is
Total Kjeldahl Nitrogen,and(NO2-N+NO3-N)is Nitrite/Nitrate Nitrogen.
Conditions:
• All samples collected should be from a representative discharge event.
• There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 7

Permit NC0063860
A. (3.) ELECTRONIC REPORTING- DISCHARGE MONITORING REPORTS
[G.S. 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports(DMRs)and program
reports.The fmal 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 Requirements [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. The eDMR system may be accessed at:
https://deq.nc.gov/about/divisions/water-resources/edmr.
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.
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).
Page 5 of 7

Permit NC0063860
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.federalregister.gov/documents/20 1 5/1 0/22/20 1 5-24954/national-pollutant-
discharge-elimination-system-npdes-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:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.)(b)and Supersedes Section B. (11.) (d)l
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:
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:
Page 6 of 7

Permit NC0063860
"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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Page 7 of 7

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Latitude: 350 07' 00" I Facility
Longitude: 81° 01' 55" Harbor Estates Location
Stream Class: WS-V, B NC0063860
Sub-basin: 03-08-34
Receiving Stream: Catawba River North Mecklenburg County