NC0074446_Draft Permit_20210609

derOMO
ROY COOPER (
Governor fi -
DIONNE DELLI-GATTI 7\40):71
Secretary
S. DANIEL SMITH t41041
Director NORTH CAROLINA
Environmental Quality
June 9,2021
James Radford
Radford Development of Virginia LLC
PO Box 5529
Cary,North Carolina 27512-5529
Subject: Review of Permit DRAFT
NPDES Permit NC0074446
Hilltop MHP WWTP, Class WW-2
7105 Hwy 86 North,Hillsborough
Orange County
To Mr. Radford:
The Division of Water Resources(DWR or the Division)received on May06,2021 your application to
renew the subject permit. Please review the attached renewal draft carefully to ensure your understanding
of its limits and monitoring conditions,and to correct errors,if any.
Concurrent with this notification,the Division will solicit public comment on this draft by publishing a
notice in newspapers having circulation in the general Orange County area,as required by the NPDES
Program. Please submit your written comments(if any),to my attention,NCDEQ/DWR/NPDES no
later than July 12,2021 (approximately 30 days after receiving this document).We welcome your written
comments,but they are not mandatory.
The Division understands that,since last renewal, Hilltop MHP WWTP (Hilltop)has made no
significant alterations to treatment systems or processes. Therefore,we have made only minimal changes
to the permit for this renewal as:
1. Updated treatment Class WW-2 and cited relevant regulations[Section A. (1.)]
2. updated text for electronic reporting requirements. [Section A. (3.)]
3. updated site map
Monthly Report Submittals:Our records show that Hilltop has registered for e-reporting. Federal
regulations require electronic submittal of all program reports and Monthly Discharge Monitoring
Reports(DMRs);see Permit Condition A. (2). Please note that if you have completed and
submitted to DWQ an Electronic Signature Agreement,you are no longer required to submit DMR
hardcopy as back-up to the eDMR.
n (PartsII,III and IV arepart of this permit but are not included in this
The NPDES standard conditions ),
draft document(cover,map,and Part I).The conditions are identical to your current permit except that
agency and division names have been updated. The latest version of Parts II,III,and IV are available
at https://bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
Following the mandatory 30-day Public Comment period,the Division will review all pertinent comments,
if any,and take appropriate action prior to issuing an NPDES permit final.
North Carolina Department of Environmental Quality I Division of Water Resources
-���
512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617--919.707.9000

James Radford
Renewal Draft Permit Review
Jun2021
If you have questions,please email the undersigned at[joe.corporonAncdenr.gov].In support of mandated
emergency response to Covid 19,most of NC state government currently functions remotely,therefore
correspondence via email is preferred.
Respectfully,
Joe .Corpor ,P.G.
D Q/DWR/NPDES Permitting
Enclosure:NPDES Permit NC0074446(renew draft)
ec: DWR/NPDES Program Files Laserfiche
DWR/OCU,Maureen Kinney
DWR/RRO,Vanessa Manual,cc Scott Vincent
Paul Smith[[e-mail]]
PWS

Permit NC0074446
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,the
Radford Development of Virginia LLC
is hereby authorized to discharge wastOwater from facility located at the
Hilltop Mobile Home Park WWTP
7105 NC Highway 86 North, Hillsborough
Orange County
to receiving waters designated as Old Field Creek in subbasin 03-06-05 of 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 , 2021
This permit and authorization to discharge shall expire at midnight on April 30, 2026.
Signed this day , 2021
S. Daniel Smith,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NC0074446
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.
Radford Development of Virginia LLC
is hereby authorized to:
1. continue to operate an existing 0.012 MGD wastewater treatment facility utilizingthe following
components:
• Flow equalization
• Bar screen ` �\ \
• Dual train aeration basins and clarifiers ;
• Tertiary filters \\\_
• Tablet chlorinator with chlorine contact c r
• Tablet dechlorination
• Cascade aeration----,\\--/
• Flow meter ' . , )72
• Aerobic digester
\ � �
• Back-up generator
these facilities located at the Hilltop Mobile Home Park WWTP,at 7105 NC Highway 86 North,
Hillsborough,south of Blackwood,Orange County,
2. discharge from said treatment works via Outfall 001,at the location specified on the attached
map,into Old Field Creek[16-41-1-7]a waterbody currently classified WS-V;NSW within
subbasin 03-06-05[HUC:0303000206]of the Cape Fear River Basin.
Page 2 of 6

Permit NC0074446
PartI
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15ANCAC 02B.0400 et seq.,15ANCAC 02B.0500 et seq.]Class WW-2[15ANCAC 08G.0302]
Beginning on the permit effective date and lasting until expiration, the Permittee is authorized to discharge
treated domestic wastewater from Outfall 001. Such discharges shall be limited,monitored, and reported' by
the Permittee as specified below:
EFFLUENT EFFLUENT MONITORING REQUIREMENTS
LIMITATIONS
CHARACTERISTICS
Monthly Daily Measurement Sample Sample
Parameter Code Average Maximum Frequency Type Location 2
Flow 50050 0.012 MGD Continuous Recording I or E
Temperature(°C) 00010 Daily Grab E
TotalResidualChlorine3 50060 17 µg/L 2/Week Grab E
Temperature(°C) 00010 Weekly Grab U &D
BOD, 5-day,(20°C)— C0310 5.0 mg/L 7.5 mg/L Weekly Grab E
Summer*
BOD,5-day,(20°C)— C0310 \ 10.0mg/L 15.0mg/L Weekly Grab E
Winter* i
Total Suspended Solids C0530 30.0mg/L 45.\mg/L Weekly Grab E
NH3 asN—Summer* ,\ \ C061f\ \2.0 mg/L 10.0 mg/L Weekly Grab E
NH3 asN—Winter* C0610 4.0 mg/L 20.0 mg/L Weekly Grab E
pH standard units 00400 >6.0 and<9.0 s.u. Weekly Grab E
Dissolved Oxygen 4 00300 Weekly Grab E,U&D
FecalColiform 31616 200/100ml 400/100m1 Weekly Grab E
(geometric mean)
TotalNitrogen C0600
(NO2+NO3+TKN) Quarterly Grab E
TotalPhosphorus C0655 Quarterly Grab E
*Summer:Apr 1—Oct 31 *Winter:Nov 1—Mar 31
Footnotes:
1. Beginning on the effective date,the permittee shall submit discharge monitoring reports electronically using
the NC DWR's eDMR application system[see A.(4)].
2. U=Upstream;D=Downstream;E=Effluent U at least 100 feet upstream from the outfall.D=at the NC
Highway 86 bridge.
3. The Division sha ll consider compliant alleffluent TRC values reportedbelow 50 in/L.However,the
Perm ittee shall continue to record and submit all values reported by a North Carolina-certified test method
(including field certified),even if these values are below 50 µg/L.
4. Dissolved Oxygen(DO)Daily Average effluent concentration shall not fall below 6.0 mg/L.
Condition:The Permittee shall discharge no floating solids or foam visible in other than trace amounts.
Page 3 of 6

Permit NC0074446
A. (2.) NUTRIENT REOPENER CONDITION
[NCGS 143-215.1 (b)]
Pursuant to N.C. General Statutes Section 143-215.1 and the implementing rules found in the North Carolina
Administrative Code at 15A NCAC 2H.0112(b)(1)and 2H.01 14(a)and Part II sections B-12 and B-13 of this
permit, the Director may reopen this permit to require supplemental nutrient monitoring of the discharge. The
purpose of 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 modeling may require that limits for total nitrogen and total phosphorus be
imposed upon renewal of this permit.
A. (3.) ELECTRONIC REPORTING OF 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 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:
Page 4 of 6

Permit NC0074446
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 21,2025,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 a 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:
httns://www.federalregister.gov/documents/20 1 5/10/22/2015-24954/nat Iona l-pollutant-discharge-elim ination-
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.
Page 5 of 6

Permit NC0074446
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)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.Xb). 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."
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].
Page 6 of 6

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(Flows N) Old Field Creek
(flows NE)
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Radford Development of Virginia LLC / Facility
Hilltop Mobile Home Park WWTP Location rF
J,atitude(outfall): 35°58'38"N StateGrid/Quad: D22NE/Chapel Hill not to scale ;'
J,nngitude(outfall): 79°04'02" W Permitted Flow: 0.012MGD --"..
Receiving Stream• Old Fields Creek Stream Segment: 16-41-1-7 NPDES Permit NC0074446
Stream Class,: WS-V;NSW Suh-Rasin: 03-06-05 North
Wain age Rasin: Cape Fear HIIC: 0303000206 Orange County