HomeMy WebLinkAboutNC0036919_Draft Permit_20191002 ROY COOPER
\ Governor
• MICHAEL S. REGAN
.�„ Secretao.
LINDA CULPEPPER
Director
414,
NORTH CAROLINA
Environmental Quality
October 2,2019
Mr. Stuart Ricks, Mayor
Town of Pantego
P.O Box 87
Pantego,NC 27860-0087
Subject: Draft NPDES Permit NC0036919
Pantego Municipal Center WWTP
Grade I Biological WPCS
Beaufort County
Dear Mayor Ricks:
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 changes from the existing permit:
> Added Regulatory Citations.
> Added Section A.(3.)-Temporary Means of Disinfection
➢ Updated table footnotes.
➢ Updated Section A. (4.).
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
919-707-3699,or via e-mail at Kristin.Litzenberger@ncdenr.gov.
Sincerely,
7114-64,,,,, -
Kristin Litzenberger
NPDES Compliance and Expedited Permitting
cc: NPDES File
o Q�
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-9000
Permit NC0036919
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
Town of Pantego
is hereby authorized to discharge wastewater from a facility located at the
Pantego Municipal Center WWTP
142 Swamp Road
Pantego
Beaufort County
to receiving waters designated as an unnamed tributary to Pantego Creek [29-34-34-(1)] in subbasin 03-
03-07 of the Tar-Pamlico 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 November 30, 2024.
Signed this day
DRAFT
For Linda Culpepper, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6
Permit NC0036919
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 Pantego is hereby authorized to:
1. Continue to operate an existing 0.006 MGD wastewater treatment facility that includes the following
components:
> 500-gallon grease trap
> Dual septic tanks
> Recirculating sand filter
> 5,000-gallon recirculation tank
> "Perc-Rite"control system
> UV disinfection
> Flow totalizer
> Venturi tube-air injection unit
This facility is located at the Pantego Municipal Center(142 Swamp Road, west of Pantego) in
Beaufort County.
2. Discharge treated wastewater from said treatment works at the location specified on the attached
map into an unnamed tributary to Pantego Creek [29-34-34-(1)], currently classified C-Swamp NSW
waters in subbasin 03-03-07 of the Tar-Pamlico River Basin.
Page 2 of 6
Permit NC0036919
PART I
A. (1.) EFFLUENT LIMITS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning upon the effective date of the 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:
PARAMETER LIMITS MONITORING REQUIREMENTS
[eDMR Codes] Monthly Weekly Daily Measurement Sample Type Sample
Average Average Maximum Frequency Location2
Flow[50050] 0.006 Influent or
Weekly Instantaneous
MGD Effluent
BOD,5-day(20°C)3 Influent&
(April 1 —October 31) 5.0 mg/L 7.5 mg/L 2/Month Grab Effluent
[C0310]
BOD,5-day(20°C)3 Influent&
(November 1 —March 31) 10.0 mg/L 15.0 mg/L 2/Month Grab Effluent
[C0310]
Total Suspended Solids3 Influent&
[C0530] 30.0 mg/L 45.0 mg/L 2/Month Grab Effluent
NH3 as N [C0610] 2.0 mg/L 6.0 mg/L 2/Month Grab Effluent
(April 1 —October 31)
NH3 as N [C0610] 4.0 mg/L 12.0 mg/L 2/Month Grab Effluent
(November 1 —March 31)
Dissolved Oxygen(mg/L) Daily average not less than 6.0 mg/L Weekly Grab Effluent
(00300)
Dissolved Oxygen(mg/L) Weekly Grab U&D
(00300)
Fecal Coliform [31616] 200/100 400/100 ml 2/Month Grab Effluent
(geometric mean) ml
Temperature(°C) [00010] Daily Grab Effluent
Temperature(°C)[00010] Weekly Grab U&D
Total Kjeldahl Nitrogen(mg/L) Monthly Grab Effluent
(TKN) (00625)
Nitrate/Nitrite Nitrogen(mg/L) Monthly Grab Effluent
(NO2+NO3) (00630)
Total Nitrogen(mg/L) Monthly Calculated Effluent
(NO2+NO3+TKN)[C0600]
Total Phosphorus(mg/L) Monthly Grab Effluent
[C0665]
pH[00400] >6.0 and<9.0 standard units 2/Month Grab Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see
A. (4)].
2. U: at least 100 feet upstream from the outfall. D: at least 300 feet downstream from the outfall.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15%of the
respective influent value (85% removal). The monthly average and weekly average limits apply to the
effluent concentrations.
4. See Condition A. (3.)for instructions should the facility's permitted UV system fail and an alternate means of
disinfection is required. Total Residual Chlorine monitoring requirements and limits are applicable if chlorine
compounds are used for disinfection.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
Page 3 of 6
Permit NC0036919
A. (2.) NUTRIENT REDUCTION REQUIREMENT
[NCGS 143-215.1 (b)]
Dischargers to the Tar-Pamlico River are subject to the requirements,terms, and conditions of the Tar-Pamlico
Nutrient Sensitive Waters(NSW)Implementation Strategy: Phase III adopted April 14,2005.Non-members of
the Tar-Pamlico Association will maintain or receive permit effluent limits for Total Nitrogen and for Total
Phosphorus concentrations as defined in the Strategy. Any revisions to the Strategy during the life of this permit
are applicable.
If requirements other than those listed in this permit are adopted as part of a revision to the Strategy,the Division
reserves the right to reopen this permit and include those requirements.
A. (3.) TEMPORARY MEANS OF DISINFECTION
[NCGS 143-215.1 (b);NCGS 143-215.66]
In the event that the wastewater treatment plant's ultraviolet(UV)disinfection system should fail,underperform,
or otherwise be removed from effective service,the permittee or his agent should immediately inform the Water
Quality Operations staff of the Washington Regional Office of this development and discuss temporary,alternate
means for disinfection of the effluent.
If chlorine compounds are used as temporary means of disinfection,the total residual chlorine(TRC)
concentration of the effluent must be monitored on a daily basis while this method of disinfection is in use and
values must be reported on the discharge monitoring report.TRC in the effluent may not exceed 17 µg/L;
therefore,dechlorination methods may also be necessary to ensure protection of water quality in the receiving
stream.
In the event that TRC monitoring should occur,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.
Use of a disinfection system other than the permitted UV system during circumstances not deemed as emergency
and/or temporary(replacement of lamps,lamp cleaning or maintenance,etc.)will be considered a violation of the
terms of this permit.
A. (4.) 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. Reporting [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.
Page 4 of 6
Permit NC0036919
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.Until such time that the state's eDMR application is compliant with
EPA's Cross-Media Electronic Reporting Regulation(CROMERR),permittees will be required to submit all
discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR
submission by printing, signing,and submitting one signed original and a copy of the computer printed eDMR 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
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 mailing address above. 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).
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:
http://www2.epa.gov/compliance/final-national-pollutant-discharge-elimination-system-npdes-
electronicreporting-rule.
Electronic submissions must start by the dates listed in the"Reporting Requirements"section above.
3. How to Request a Waiver from Electronic Reporting
Page 5 of 6
Permit NC0036919
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:
https://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.)(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://portal.ncdenr.org/web/wq/admin/bog/ipu/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.)j
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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NC0036919 - Pantego Municipal Center Facility
Latitude:35°35'20" Longitude: 76°40'00" Location
USGS Quad:Pantego, N.C. Subbasin:03-03-07
Stream Class: C-Swamp NSW Beaufort Count
Receiving Stream:UT to Pantego Creek ✓VQ�IUL Mapnot to
Stream Index:29-34-34-(1) scale