NC0067091_Draft Permit_20220712

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ROY COOPER 4`
•
Governor Of /
ELIZABETH S.BISER ,,,--
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
July 12,2022
Amanda Berger
Aqua North Carolina,Inc.
202 Mackenan Court
Cary,NC 27511
Subject: Draft NPDES Permit NC0067091
Mikkola Downs Subdivision WWTP
1 Grade II Biological WPCS •
Forsyth 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 treatment system changes. There are a
few changes in the draft attached here 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.
• Ammonia Nitrogen Winter Limits-The current permit requires monitor weekly for NH3-N and has
summer effluent limits of 6 mg/L(monthly average)and 30 mg/L(daily max)and winter limits of 18
mg/L and 35 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 monthly average limit
for NH3-N is being adjusted to 12 mg/L. The daily max limit of 35 mg/L remains the same 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.
• Special Condition for Toxicity Monitoring the 2017 permit included a special condition related to
toxicity monitoring. This condition was included in error since there are no toxicity monitoring
requirements in the permit. This condition has been removed in the draft permit.
• Map Update—Descriptive information on the permit map has been updated.
D_E Q North Carolina Department of Environmental Quality Urvision of Water Resources
512 North Salisbury Street Inll Mail Service Center Ralegh North Carolina 27b99 4,
1
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am +rT.Z...r arw\ r 914 707 9000
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Amanda Berger
Aqua North Carolina,Inc.
Page 2
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.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 Forsyth 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 continent period,the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit.If you have questions concerning this draft permit,
please 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 through email.
Sincerely,
?t4110 ?ad-
Bradley Bennett
Compliance and Expedited Permitting Unit
cc: NPDES Files-electronic
Winston-Salem Regional Office/Water Quality-electronic
Operator Certification Program/Maureen Kinney-electronic
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Draft Permit NC0067091
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
Mikkola Downs Subdivision WWTP
2777 Stable Hill Trail
Kernersville
Forsyth County
to receiving waters designated as East Belews Creek in the Roanoke 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 February 28,2027.
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 September 1,2026(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
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Draft Permit NC0067091
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 0.072 MGD wastewater treatment system with the following components:
• Flow splitter box
• Bar screen
• Dual aeration tanks
• Dual blowers
• Dual clarifiers
• Sludge holding tank
• Sanuril chlorinator
• Chlorine contact tank
• Dechlorination
• Post aeration tank
• Effluent flow recorder
The facility is located north of Kernersville at Mikkola Downs Subdivision at 2777 Stable Hill Trail in
Forsyth County.
2. Discharge from said treatment works at the location specified on the attached map into East Belews Creek
[22-27-8-(1)],classified C waters in sub-basin 03-02-01 [HUC 030101030303]of the Roanoke River Basin.
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Draft Permit NC0067091
PART I.
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15 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 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 Code Average Maximum Frequency Type Location1
Flow 50050 0.072 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-Summer' C0610 6.0 mg/L 30.0 mg/L Weekly Composite Effluent
NH3 as N-Winter' C0610 12.0 mg/L 35.0 mg/L Weekly Composite Effluent
Dissolved Oxygen 00300 Monitor and Report Weekly Grab Effluent
Fecal Cdiform(geometric 31616 200/100 ml 400/100 ml Weekly Grab Effluent
mean)
Total Residual Chlorine' 50060 28 pg/L 2/Week Grab Effluent
Temperature(°C) 00010 Monitor and Report Daily Grab Effluent
Total Nitrogen C0600 Monitor and Report Quarterly Composite Effluent
Total Phosphorus C0665 Monitor and Report Quarterly Composite Effluent
pH 00400 6.0 SU 5 pH 5 9.0 SU Weekly Grab Effluent
Dissolved Oxygen 00300 Monitor and Report Weekly Grab Upstream&
Downstream
Temperature(°5) 00010 tream&
Monitor and Report Weekly Grab Downs am
*Summer. April 1-October 31 *Winter: November 1-March 31
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR application system
[see A.(2)].
2. The Division shall consider all effluent TRC values reported below 50 pg/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 .ig/L.
All samples much be collected from a typical discharge event.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER
THAN TRACE AMOUNTS.
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Draft Permit NC0067091
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. Reportina Requirements ISunersedes Section D. (2.)and Section E.(5.)(all
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.
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:
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Draft Permit NC0067091
• 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.
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
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Draft Permit NC0067091
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:
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.)]
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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Aqua North Carolina, Inc. Facility '
Mikkola Downs Subdivision WWTP Location
County: Forsyth Stream Class: C (not to scalel
Receiving Stream: East Belews Creek Sub-Basin: 03-02-01
Latitude: 36'10'57" Grid/quad: C18NE/Belews Cr
Longitude: 80`03'14" HUC: 030101030303 NORTH NPDES Permit: NC0067091
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