HomeMy WebLinkAboutNC0021610_Draft Permit_20191002 ROY COOPER
Governor
' .' MICHAEL S. REGAN
itSecretory
447w00
' LINDA CULPEPPER
NORT H CAROLINA Interim Director
Environmental Quality
October 2,2019
Mr.Chris Hall
Director of Public Works
P.O.Box 307
Clarkton,NC 28433-0307
Subject: Draft NPDES Permit NC0021610
Clarkton WWTP
Grade II Biological WPCS
Bladen County
Dear Mr.Hall,
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:
> Changed the receiving waters to an unnamed tributary to Big Foot Marsh.The outfall location in our
system was incorrect,this has been updated to the correct receiving waters.
> Section A. (4)has been updated regarding electronic submission of effluent data.Federal regulations
require electronic submittal of all discharge monitoring reports(DMRs).
> Regulatory citations have been added to the permit.
> Parameter codes have been updated.
> Removed Mercury Special Condition section,updated in footnotes.
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 except that agency and
division names have been updated.The latest version is available at https://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 Bladen County area,per EPA requirements. Please provide your
comments,if any,to me 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,
Kristin Litzenberger
NPDES Compliance and Expedited Permitting
D_Q)
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-3712
cc: NPDES File
Permit NC0021610
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 Clarkton
is hereby authorized to discharge wastewater from a facility located at the
Clarkton WWTP
408 Woods Street
Clarkton
Bladen County
to receiving waters designated as an unnamed tributary to Big Foot Marsh [15-4-1-1-3] in subbasin 03-
07-58 of the Lumber 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 August 31, 2024.
Signed this day
DRAFT
For Linda Culpepper, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1of7
Permit NC0021610
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 Clarkton is hereby authorized to:
1. Continue to operate an existing 0.24 MGD wastewater treatment facility that includes the following
components:
> Flow equalization
> Extended aeration tanks
> Clarifiers
> Pyradek filters
> UV disinfection
> Sludge holding
g
This facility is located at the Clarkton WWTP south of Clarkton(408 Woods Street)in Bladen
County.
2. Discharge treated wastewater from said treatment works at the location specified on the attached
map into an unnamed tributary to Big Foot Marsh [15-4-1-1-3], currently classified C-Swamp waters
in subbasin 03-07-58 of the Lumber River Basin.
Page 2 of 7
Permit NC0021610
PART I
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
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 Measurement Sample Sample Location
Average Average Frequency Type
Flow Influent or
0.24 MGD Continuous Recording
50050 Effluent
BOD,5-day(20°C)2(mg/L) 30.0 mg/1 45.0 mg/I Weekly Composite Influent&Effluent
C0310
Total Suspended Solids2(mg/L) 30.0 mg/1 45.0 mg/1 Weekly Composite Influent&Effluent
C0530
NH3 as N(mg/L)
2/Month Composite Effluent
C0610
Fecal Coliform(geometric mean) 200/100 ml 400/100 ml Weekly Grab Effluent
31616
Total Residual Chlorine3(µg/L) Daily Maximum 17 µg/1 2/Week Grab Effluent
50060
pH Not<6.0 nor>9.0 S.U. Weekly Grab Effluent
00400
Temperature(°C)
00010 Weekly Grab Effluent
Total Nitrogen(mg/L)
(NO2+NO3+TKN) C0600 Quarterly Calculated Effluent
Total Kjeldahl Nitrogen(mg/L)
(TKN) 00625 Quarterly Composite Effluent
Nitrate/Nitrite Nitrogen(mg/L)
(NO2+NO3) 00630 Quarterly Composite Effluent
Total Phosphorus(mg/L)
C0665 Quarterly Composite Effluent
Chronic Toxicity4
THP3B Quarterly Composite Effluent
Dissolved Oxygen(mg/L)
00300 Weekly Grab Effluent
Total Mercurys(ng/L) Monitor&Report within last 12 1/Cycle Grab Effluent
COMER months of permit cycle
Temperature(°C) Weekly Grab Upstream&
00010 Downstream
Dissolved Oxygen(mg/L) Weekly Grab Upstream&
00300 Downstream
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system[see A. (4.)].
2. The monthly average effluent concentrations of BODS and Total Suspended Solids shall not exceed 15%of the respective
influent value(85%removal).
3. 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
Page 3 of 7
Permit NC0021610
certified),even if these values fall below 50 µg/L.TRC limit and monitoring requirements apply only if chlorine is added to
disinfect.
4. Chronic Toxicity(Ceriodaphnia)P/F at 90%:January,April,July&October(see Special Condition A. (2.)below).
5. The Permittee shall provide one effluent mercury analysis,using EPA Method 1631E,in conjunction with the next
permit renewal application.The analysis should be taken within 12 months prior to the application date. Any additional
effluent mercury measurements conducted from the effective date of this permit and up to the application date shall also
be submitted with the renewal application.If the result of the mercury analysis is not provided with the application,the
application may be returned as incomplete and the Permittee considered non-compliant.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
A. (2.) CHRONIC TOXICITY PERMIT LIMIT (Quarterly)
[15A NCAC 02B .0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 90%.
The permit holder shall perform at a minimum,quarterly monitoring using test procedures outlined in the"North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"Revised December 2010,or subsequent versions
or"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"(Revised-December 2010)or
subsequent versions.The tests will be performed during the months of January,April,July and October.
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.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the
permit limit,then multiple-concentration testing shall be performed at a minimum,in each of the two
following months as described in"North Carolina Phase H Chronic Whole Effluent Toxicity Test
Procedure"(Revised-December 2010)or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form(MR-1) for the months in which tests were performed,using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally,DWR Form AT-3 (original)is to be sent to the
following address:
NC DEQ/Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh,North Carolina 27699-1621
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 of the 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.
Page 4 of 7
Permit NC0021610
Should the permittee fail to monitor during a month in which toxicity monitoring is required,monitoring will be
required during the following month.Assessment of toxicity compliance is based on the toxicity testing quarter,
which is the three month time interval that begins on the first day of the month in which toxicity testing is
required by this permit and continues until the final day of the third month.
Should any test data from this monitoring requirement 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.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival,minimum control organism reproduction, 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.) MERCURY REOPENER(Quarterly)
[G.S. 143-215.1(b)]
The Division may re-open this permit to require mercury load limitations,mercury minimization plans,and/or
source water characterization following completion of the Phase 2 Mercury TMDLs for the Lumber and
Waccamaw River watersheds.
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.
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
Page 5 of 7
Permit NC0021610
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 byEPA to implement the NPDES program)that is the designated entityfor receivingelectronic
P �
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
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
Page 6 of 7
Permit NC0021610
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 of fines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D.(6.)l
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 7
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Town of Clarkton I Facility
Clarkton WWTP Location x
County: Bladen Stream Class: C-Swamp (not to scale)
Receiving Stream: UT to Big Foot Marsh Sub-Basin: 03-07-58 ..
Latitude: 34°28'45" Longitude: 78°39'07"
HUCii: 03040206 Stream Index: 15-4-1-1-3 NORTH NPDES PERMIT: NC0021610