NC0050792_Draft Permit_20211214

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ROY COOPER '5 S ' i °
Governs „
ELIZABETH S.BISER .4
Secretary
S.DANIEL SMITH NORTH CAROLINA
Dtrrc'Or Environmental Quality
December 14,2021
Amanda Berger
Aqua North Carolina,Inc.
202 Mackenan Court
Cary,NC 27511
Subject: Draft NPDES Permit NC0050792
Melbille Heights WWTP
Grade II Biological WPCS
Randolph County
Dear Ms.Berger:
Attached with this letter is a copy of the Draft NPDES permit renewal for your facility. Please review
this draft carefully to ensure thorough understanding of the requirements and conditions it contains. We
understand from your renewal application that there have been no significant changes to the treatment
system.There are a few changes in the draft from the existing permit. These changes are summarized
below.
• Regulatory Citations-Language has been added where necessary in the permit to provide regulatory
citations for permit requirements.
• Electronic Reporting-Permit language has been modified to be consistent with the finalization of
federal requirements for electronic reporting.
• Updates to Footnotes on Effluent Table—Language in the footnotes has been updated to be consistent
with our current descriptions. These adjustments have not altered the requirements of the footnotes.
One footnote defining upstream and downstream locations has been removed since upstream and
downstream monitoring is no longer required in the permit.
• Ammonia Nitrogen Winter Limits-The current permit requires monitor weekly for NH3-N and has
summer effluent limits of 2 mg/L(monthly average)and 10 mg/L(daily max)and winter limits of 5
mg/L and 25 mg/L. A recent review by Division staff has noted that 15A NCAC 2B .0404(c)
requires that winter waste load allocations for oxygen consuming waste be no less stringent than two
times the summer waste load limit. To meet this rule requirement the winter limits for NH3-N are
being adjusted to 4 mg/L and 20 mg/L in the draft permit.While there could be some impacts with this
change,based on the data reviewed from the previous permit cycle it appears that the proposed
change in limits can be regularly attained with the existing system.
• Nutrient Monitoring Special Condition—Permit language has been updated for this reopener
condition in Section A. (2)of the permit.
• Map Update—Descriptive information on the permit map has been updated.
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Amanda Berger
Aqua North Carolina, Inc.
Page 2
The NPDES standard conditions(Parts II, III,and N)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.The latest
version of the standard conditions is available at https://bit.ly/3k5NFaL and can be viewed online or
downloaded as a PDF file.
Concurrent with this notification the Division is publishing a notice in a newspaper having general
circulation in the Randolph County area soliciting public comments on this draft permit. Please provide
any written comments you may have to me no later than 30 days after receipt of 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 fmal permit.If you have questions concerning this draft permit,
please call me at(919)707-3629 or contact me by email at [e-mail]. At this time,
contact by email is the most effective method. If we need to set up a call to discuss any issues we can set
that up throughemail.
Sincerely,
32.41-
Bradley Bennett
Compliance and Expedited Permitting Unit
cc: NPDES Files-electronic
Winston-Salem Regional Office/Water Quality—electronic
Operator Certification Program/Maureen Kinney—electronic

Draft Permit NC0050792
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, the
Aqua North Carolina, Inc.
is hereby authorized to discharge wastewater from a facility located at the
Melbille Heights WWTP
off NCSR 1922
Randolph County
to receiving waters designated as Muddy Creek 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
This permit and authorization to discharge shall expire at midnight on August 31,2026.
If the permittee intends to continue discharging at the facility beyond the term of this permit,a renewal
application must be submitted no later than March 4,2026(180 days before the expiration of this permit)
Signed this day
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

Draft Permit NC0050792
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this 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 0.0315 MGD wastewater treatment facility with the following
components:
• Influent pump station
• Bar screen
• Equalization basin
• Digester
• Aeration basins (2)
• Rectangular clarifiers (2)
• Tertiary filters
• UV disinfection units (2)
• ISCO flow meter
• Sludge holding tank
• Emergency generator
This facility is located off NCSR 1922 at the Melbille Heights WWTP in Randolph County.
2. Discharge from said treatment works at the location specified on the attached map into Muddy
Creek, currently classified WS-IV, CA* waters in sub-basin 03-06-08 (HUC 030300030106) of the
Cape Fear River Basin.
Page 2 of 8

Draft Permit NC0050792
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 permits issuance 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
eDMR Code Average Maximum Frequency Sample Type Location
Flow 50050 0.0315 MGD Continuous Recording Influent or
Effluent
BOD,5-day(20°C) CO310 11.0 mg/L 17.0 mg/L Weekly Composite Effluent
Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
NH3 as N—Summer* C0610 2.0 mg/L 10.0 mg/L Weekly Composite Effluent
NH3 as N—Winter* C0610 4.0 mg/L 20.0 mg/L Weekly Composite Effluent
Dissolved Oxygen 00300 Daily average>6.0 mg/L Weekly Grab Effluent
Fecal Coliform 31616 200/100 ml 400/100 ml Weekly Grab Effluent
(geometric mean)
Total Residual 50060 17.0 µg/L 2/Week Grab Effluent
Chlorine
Temperature 000/0 Monitor and Report(°C) Daily Grab Effluent
Total Nitrogen C0600 Monitor and Report(mg/L) Quarterly Composite Effluent
Total Phosphorus C0665 Monitor and Report(mg/L) Quarterly Composite Effluent
pH 00400 —>6.0 s.u.and<—9.0 s.u. Weekly Grab Effluent
*Summer: April 1 —October 31
*Winter.. November 1 —March 31
Footnote:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system. See
condition A. (3).
2. Total Residual Chlorine (TRC) monitoring is required only if chlorine is used by the facility. The Division shall
consider all effluent TRC values reported below 50 gg/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 gg/L.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
Page 3 of 8

Draft Permit NC0050792
A. (2.) PERMIT RE-OPENER: SUPPLEMENTARY NUTRIENT MONITORING
[G.S. 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 supplemental nutrient monitoring of the discharge. 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 modelling may require that limits for total
nitrogen and total phosphorous be imposed on this permit upon renewal.
(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. (3) 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.) 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,
Page 4 of 8

Draft Permit NC0050792
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.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge-
elimination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the "Reporting Requirements" section
above.
Page 5 of 8

Draft Permit NC0050792
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)I
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:
"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 offines and imprisonment for knowing violations."
Page 6 of 8

Draft Permit NC0050792
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].
Page 7 of 8

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Melbille Heights WWTP Facility
Receiving Stream: Muddy Creek Stream Class: WS-IV;CA* Location
I River Basin: Cape Fear Sub-Basin: 03-06-08 (not to scale)
Latitude: 35°52'57" Longitude: 79°53'41"
Stream Segment 17-9-(2) HUC#: 030300030106
Grid/Quad: D22NW/High Point East County: Randolph NORTH NPDES Permit: NC0050792
Page 8 of 8