NC0086584_Draft Permit_20200825

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Stephen Hall, Director Public Works
Town of Belhaven
PO Box 220
Belhaven, NC 27810-0220
Dear Mr. Hall:
NORTH CAROLINA
Environmental Quality
August 25, 2020
Subject: Draft NPDES Permit NCO086584
Belhaven WTP
Grade I Physical Chemical WPCS
Beaufort County
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:
Monitoring for Total Copper has been reduced to quarterly because no detection was reported.
The method detection limit reported for Copper was < 10 µg/L. To evaluated compliance with
the water quality standards for Copper, the acute value of 5.80 µg/L and the chronic value of
3.70 µg/L, a practical quantitation limit (PQL) that is less than 3.70 µg/L is required. A PQL
such as 2 µg/L would be preferred instead of 10 µg/L. Please note that permit Part 1I, Section
D.4. requires the following:
To meet the intent of the monitoring required by this permit, all test procedures must
produce minimum detection and reporting levels that are below the permit discharge
requirements and all data generated must be reported down to the minimum detection or
lower reporting level of the procedure. If no approved methods are determined capable of
achieving minimum detection and reporting levels below permit discharge requirements,
then the most sensitive (method with the lowest possible detection and reporting level)
approved method must be used.
2. Total Zinc data did not show reasonable potential to exceed water quality standards. Therefore,
monitoring for Zinc has been removed.
3. The permit map was updated.
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
EQ �� 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
M1 RTHC FIOLI4A
o.wnwm m F�min.+r ouNM 919.707.9000

Mr. Hall
August 25, 2020
Page 2 of 2
except that agency and division names have been updated. The latest version is available at
httsp .//bit.ly/2BZ4xxx and can be viewed online or downloaded as a PDF file.
With this notification, the Division will solicit public comment on this draft permit by publishing a
notice in newspapers having circulation in the general Beaufort County area, per EPA requirements.
Please provide your comments, if any, to me at the address below 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 919-707-3618, or via e-mail at
derek.denard(a,ncdenr.gov.
Sincerely,
Derek Denard, Environmental Specialist
NPDES Compliance and Expedited Permitting
Division of Water Resources, NCDEQ
ec: NPDES File [Laserfiche]
water(abelhavennc.us
WaRO / Robert Tankard [robert.tankard(ancdenr.gov
WSS/Aquatic Toxicology Branch, Cindy Moore [cindy.a.moore(ancdenr.gov]
Wastewater Operator Certification Group (Maureen.Kinney(ancdenr.gov)

NPDES Permit NC0086584
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
I U a 10ROA I I I
TO DISCHARGE WASTEWATER UNDER THE
(NPDES)
In compliance with the provisions of North Carolina G, ?l Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the N Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended, the
Town of Belhaven
is hereby authorized to discharge wastewater from a facility located at the
Belhavem WTP
662 Harbin gd Rbad Belkavon
Beaufort County
to receiving waters designated as an unnamed tributary to Pantego Creek in the Tar -Pamlico River Basin
in accordance with the discharge limitations, monitoring requirements, and other conditions set forth in
Parts I, II, III, and IV hereof.
This permit shall become effegive
This permit and the authorization r ` ischarge shall expire at midnight on November 30, 2019.
Signed this day
S. Daniel Smith, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

NPDES Permit NCO086584
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.
The Town of Belhaven
is hereby authorized to:
1. continue to operate an existing Nanofiltration water treatment plant with a discharge of
wastewater concentrate with a design potable rate of 0.5 MGD and a maximum, monthly average
wastewater discharge of 0.0720 MGD, with water and wastewater treatment consisting of;
• two (2) nanofiltration units
located at the Belhaven WTP, 662 Harbinger Road, Beaufort County; and
2. discharge nanofiltration concentrate from a water treatment plant via Outfall at the location
specified on the attached map into an unnamed tributary to Pantego Creek [Stream Segment:
29-34-34-(2)], waters currently classified SC; Sw in subbasin 03-03-07 [HUC: 0302010403051 in
Oie Tar -Pamlico River Basin.
Page 2 of 7

NPDES Permit NCO086584
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (001)
[15A NCAC 02B .0400 et seq., 02B .0500 seq.]
Grade I Physical Chemical 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 nanofiltration concentrate from outfal1001. Such discharges shall be
limited, monitored and reported' by the Permittee as specified belo
Idow
EFFLUENT
CHARACTERISTICS
Parameter codes
LIMITS
MONITORING
REQUIREMENTS 1
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample a
p Type
Sample 2
Location
Flow (mgd)
50050
Monitor & Report
Continuous
Recording
E
Salinity (ppth)
00480
Monitor & Report
Monthly
Grab
E, D 3
Conductivity (umhos/cm)
00094
Monitor & Repo,
Monthly
Grab
E, D 3
pH (su)
00400
Not < 6.8 nor > 8.5 s.u. �`
Monthly
Grab
E, D 3
Dissolved Oxygen (mg/1)
00300
Monitor & Report
Monthly
Grab
E, D 3
Total Dissolved Solids (mg/1)
70295
Monitor & Report
Monthly
Grab
E
Turbidity (ntu)
OOQ O
Monitor & Report
Monthly
Grab
E
Total Copper (µg/1)
01042
Monitor & Report
_Quarterly
Grab
E
Total Iron (µg/1)
01045
Monitor & Report
Quarterly
Grab
E
Ammonia Nitrogen (mg/1)
C0610
Monitor & Report
Monthly
Grab
E
Total Nitrogen (TN) (mg/1)
C0600
Monitor"& Report
Quarterly
Grab
E
Total P ,, sphorus (TP) (mg/1)
C0665
Monitor & Report
Quarterly
Grab
E
It
; t
Whole Efflu Toxicity 4
TGE3E
M nitor & Report
Quarterly
Grab
E
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see Section A. (3)].
2. Samples shall be collected at some point after all treatment units and prior to discharge, unless otherwise
noted. E = effluent, D = 100 feet downstream of discharge location.
3. In light of the permittee's participation in the Tar Pamlico Basin Association, instream monitoring required by
this permit is provisionally waived. Instream monitoring will be immediately reinstated should the permittee
end its participation in the Association.
4. Acute Toxicity Monitoring P/F (Mysidopsis bahia) @ 90%, during the months of January, April, July, and
October. See Section A. (2).
Conditions:
• All samples collected shall be of a representative discharge.
• There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 7

NPDES Permit NCO086584
A. (2.) ACUTE TOXICITY PASS/FAIL MONITORING (QUARTERLY)
[15A NCAC 02B .0500 et seq.]
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North
Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A
Single Effluent Concentration" (Revised -December 2010, or subsequent versions). The monitoring shall
be performed as a Mysid Shrimp (Mysidopsis bahia) 24-hour static test. The effluent concentration at
which there may be at no time significant acute mortality is 90% (defined as treatment two in the
procedure document). The tests will be performed during the mont* of February, May, August and
November. These months signify the first month of each three-month toxicity testing quarter assigned to
the facility. Effluent sampling for this testing must be obtained during representative effluent discharge
and shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered electronically using the
Division's eDMR system for the month in which itwas performed, using the parameter code TGE3E.
Additionally, DWR Form AT-2 (original) is to be`sent to the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, NC 27699-1621
Or, results can be sent to the email, ATForms.ATBgncdenr.gov.
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is
employed for disinfection oPthe waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the report
with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the
Water Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then
monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test
requirement will revert to quarterly in the months specified above.
Should any test data from either these monitoring requirements or tests performed by the North Carolina
Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re-
opened and modified to include alternate monitoring requirements or limits.
Page 4 of 7

NPDES Permit NCO086584
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival and appropriate environmental controls, shall constitute an invalid test and will require
immediate follow-up testing to be completed no later than the last day of the month following the month of the
initial monitoring.
A. (3.) ELECTRONIC REPORTING OF 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 supers 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. Reportine Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)]
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitorifg Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronicallk,using eDMR. The eDMR s`` tern allows permitted facilities to enter
monitong data and submit,DMRs electronically us the internet. The eDMR system may be
accessed at: htt s://d `.nc. ov/about/divisi r- sources/edmr.
If a permittee is unable to use the a 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.
Page 5 of 7

NPDES Permit NC0086584
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. 4#
➢ NPDES Electronic Reporting Rule — Phase 2 Extension. EPA is proposing to
extend the Phase 2 deadline from December 21, ` Q until.at least December 21, 2023.
The current compliance date will be extende a implemen n date is extended as
a final regulation change in the federal re
The permittee may seek an electronic reportin er from the Division ow to Request a
Waiver from Electronic Reporting" section belo
2. Electronic Submissions
In accordance with 40 CFR 122.41
of each electronic submit. The
initial recipient for the electronic s
nitial recipient at the time
to resources to identify the
Initial recipient of electronic N PDES information fr6m NPDES-Vgulated 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 [OL.40 CFR 2(b)].
EPA plans to es ta website that will a b link to a appropriate electronic reporting tool for
each type of electro 1 oaW for each state. Instructions on how to access and use the
approprude electronic re ing too be available as well. Information on EPA's NPDES
Electron orting Rule � "'`-found at: -//www.federalregister.gov/documents/2015/10/22/2015-
Electronic submisns must sby the dates listed in the "Reporting Requirements" section above.
' 3. How to Request a W- ver 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
Page 6 of 7

NPDES Permit NCO086584
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://deg.nc.gov/about/divisions/water-resources/edmr
4. Shmatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)]
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (I I .)(a) or by a duly authorized representative of that person as described in Part II,
Section B. (I 1.)(b). A person, and not a position, must be delegated signatory authority for eDMR
reporting purposes.
For eDMR submissions, the person signing
account and login credentials to access the 4
eDMR system, registering for eDMR and o
following web page:
Ling the DMR must obtain an eDMR user
;m. For more information on North Carolina's
eDMR User account, please visit the
hM://deg.nc. gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using thegstate's eDMR system shall make
the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED
V 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 imprisonmentfor 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 p . '; may be extended by request of the Director at any time [40 CFR
122.41].
Page 7 of 7

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Gopynght:©`2013•Natiociety, i-cubed
Town of Belhaven
N
Belhaven WTP
NPDES Permit NCO086584
Receiving Stream: UT to Pantego Creek Stream Class: SC; NSW
Facility Location
scale not shown
Stream Segment: 29-34-34-(2) Sub -Basin #: 03-03-07
River Basin: Tar -Pamlico HUC: 0302010403
County: Beaufort
SCALE USGS quad: Pantego
1:24,000 35.557220,-76.62889°