HomeMy WebLinkAboutNC0086959_Draft Permit_20180613 ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Water Resources Interior Director
ENVIRONMENTAL QUALITY
June 13, 2018
Joey T. Threewitts, Operations Manager
Northwestern Wayne Sanitary District
P.O. Box 1583
Goldsboro,North Carolina 27533-1583
Subject: Review of DRAFT Permit NPDES NC0086959
Memorial Church Road WTP No. 2, Class PC-1
2165 Memorial Church Road, Kenly
Wayne County
Dear Mr. Threewitts:
In response to your request to renew the subject permit,the Division of Water Resources (the
Division or DWR) offers this draft for your review and comment. Please review the attached to
insure your understanding of the revised limits and monitoring conditions.
Summary of Changes to the Previous Permit
• DWR has applied statewide potable water treatment plant(WTP)permitting strategies
for greensand treatment technology(as amended 2012).
• Because this facility discharges under zero-flow receiving stream conditions [7Q10 and
30Q2= 0.0 cfs], its effluent receives no credit for dilution, and therefore parameters of
concern are limited in the permit at their respective.
• Considering a routinely infrequent episodic discharge regimen(100%recycle of filter
backwash),all monitoring frequencies are hereby revised to"Each Discharge."
• Zn is required of greensand(no data to date);therefore,we added Zn(monitoring only).
• At last renewal,ownership changed back to Northwestern Wayne Sanitary District, from
Northwestern/Belfast-Patetown Sanitary District,therefore a BIMS update is in progress.
• The facility description has been updated(see Supplement to Permit Cover Sheet).
• The Site-Vicinity Map has been updated.
• Total Hardness monitoring(effluent and upstream] is required in support of EPA's calculation for metals
in dissolved fraction.Therefore,instream sample is hereby reintroduced to the permit.Because zero-
flow stream conditions preclude upstream sampling,we have revised"upstream"to"instream" [Inst];
this sampling location specified a minimum 100 feet from the outfall.
Concurrent with this notification,the Division will solicit public comment on this draft by publishing a
notice in newspapers having circulation in the general Wayne County area, as required by the NPDES
Program. Please provide your written comments, if any, to me via email [joe.corporon®ncdenr.gov], or
write to my attention care of NCDEQ/DWR/NPDES Program no later than July 16,2018,
approximately 30 days after receiving this letter. Your written comments are welcome,but are not
mandatory.
State of North Carolina I Environmental Quality I Water Resources
1611 Mail service Center I Raleigh,North Carolina 27699-1611
919 707 9000
Joey T.Threewitts,Operations District Manager
Northwestern Wayne Sanitary District
June 13,2018
Page 2
DWR understands that this WTP operates typically as a 100% wastewater-recycle system,rerouting
supernate from filter backwash to the headworks for blending and further treatment,but that the facility
wishes to retain this discharge permit for special circumstances. BIMS database documents that these
special circumstances historically have occurred only rarely [two such discharges in August 2017 each
lasting two days];beyond these, none during the previous two (2)permit cycles [2008 through 2018].
Despite 100%recycling, we understand that this facility, on occasion, contracts a licensed transport
service to introduce radioactive materials [Clarifloc A-6360], to bind filter-residual solids for
dewatering. It follows that we have added regular monitoring for all radionuclide-related parameters of
concern(POCs) [see section A. (1.), combining previous A. (2.)]. Please note that you are required to
monitor and sample each discharge event, and continue to submit monthly DMRs/eDMRs; any month
without discharge requires submitting a DMR/eDMR stating"no flow"or"no discharge."
Division records show that you have successfully registered with the eDMR Program. Please be
reminded that until the state's eDMR application is approved compliant with EPA's Cross-Media
Electronic Reporting Regulation (CROMERR), all permittees must continue to submit hardcopy of
DMRs as backup to eDMR reporting [see permit section A. (3.)].
If you have questions about this draft, or if I can further assist you,please contact me at
[joe.corporon@a,ncdenr.gov] or call my direct line(919) 807-6394.
. -�
Resp ly,
oe R. Co ron, LG
Compli a and Exp ited Permitting
Enclosure: NPDES Permit NC0086959 (p ' t draft)
hc: NPDES Program Files
ec: WaRO/SWPS,Robert Tankard;David May,Supervisor
OCU,Maureen Kinney
NPDES Brianna Young
joeyt@waynewaterdistricts.com
Permit NC0086959
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 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 Cc,r6tpct, as amended,
Northwestern Wayne Sanitary\l?istrict
is hereby authorized to discharge wa<tewwateerr from a faci ' ocated at the
Memorial Church Road Water tment Plan *TP) No. 2
2165 Memo ' urc Road, Kenly
Wa e
ice\ \
\ r
to receiving waters designated an unnamed tributary to G eat Swamp within the Neuse River
Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III and N hereof.
This permit shall become effective , 2018.
This permit and authorization to dipcargeshall expire at midnight on May 31, 2023.
Signed this day \ , 2018.
Linda Culpepper, Interim Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7
Permit NC0086959
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.
Northwestern Wayne Sanitary District
is hereby authorized to:
1. continue to operate a filter-backwash treatment system utilizi gr nand filter technology(no
sodium recharge) applied to groundwater sources in support of table-water production(design
flowrate 0.900 MGD)with a wastewater discharge estimated a O. 30 MGD, these facilities located
at the Memorial Church Road WTP No. 2, at 2165 Memorial Ch c Road, Kenly, Wayne County;
utilizing the components
• five(5) each groundwater pumping wells
• one(1) aeration tower
• one(1) raw water storage reservd'r
• three(3) each greensand filters (w4li',Poitassium Permanganate regeneration)
• applying additional treatment as
o gaseous chlorination
o ammonia addition
o sodium fluoride addition
• one 3)holding tank for wastewater backwash(conditioned as needed by)
6_ aluminum sulfate(flocculation);6r
o \\41cium thiosulfate (dechlorination)
and after holding-tank treatment, recycle the backwash supernate to the headworks of the
treatment system for blending, thereby allowing for a 100%-closed wastewater treatment
system;but upon occasion as warranted,
2. discharge from said treatment works via Outfall 001, at the location specified on the
attached map, into an unnamed tributary(UT)to Great Swamp [stream Segment 27-86-9-3],
a waterbody currently classified C; Swamp;NSW within subbasin 03-04-07 of the Neuse
River Basin.
Page 2 of 7
Permit NC0086959
Part I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of the permit and lasting until expiration,the Permittee is
authorized to discharge from Outfall 001. Such discharges shall be limited,monitored and reported 1 by the
Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS Monthly Daily Measurement Sample Sample
[Parameter Codes] Average Maximum Frequency 1 Type Location 2
Flow 50050 Episodic Instantaineous3 E
Total Residual Chlorine 4 50060 17 µg/L Each discharge Grab E
`
Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L .'Bach discharge Grab E
Ammonia(NH3 as N)(mg/L) C0610 Each discharge Grab E
Turbidity(NTU) 00076 Each discharge Grab E
pH 00400 Not<6.0 or>9.0 ,z Each discharge Grab E
Temperature(°C) 00010 Each discharge Grab E
Total Hardness 5(mg/L)—as 00900Each discharge Grab E&Inst
[CaCO3 or Ca+Mg] ` \ g
Total Aluminum(µg/L) f51105 *' .\/1 Each discharge Grab E
Total Fluoride(µg/L) 00951 ) each discharge Grab E
Total Manganese(µg/L) 01055 Each discharge Grab E
Total Zinc 5(µg/L) ,, 01092 J Each discharge Grab E
Total Nitrogen(mg/L)°, CO00; \ onitor&Report Each discharge Grab E
(NO2+NO3+TKN) \
Total Phosphorus(mg/L) C0665 Monitor&Report Each discharge Grab E
Combined radium-226 and 5 pCi/L
11503 Each discharge Grab E
radium-228(pCi/L)7 (annual average)g )
Alpha emitters,excluding radon 15 pCi/L
82077 (annualEach discharge Grab F
and uranium(pCi/L)7 (
Beta emitters,excluding
otassium-40 and other naturall 50 pCi/L
p Y 03520 Each discharge Grab F
(annual average)
occurring radionuclides(pCi/L)
13501 8 pCi/L Each discharge Grab F
Strontium-90 (weekly average) g
Tritium 7 82126 20,000 pCi/L Each discharge Grab E-:
(annual average)
30 p
Uranium 7 22708 (weekly mage) Each discharge Grab F
See Table A. (1.) footnotes,Page 5
Page 3 of 7
Permit NC0086959
Table A. (1.)Footnotes:
1. During months of no discharge,the Permittee shall submit a DMR/eDMR noting"no flow"or
"no discharge."The Permittee shall submit monthly discharge monitoring reports electronically
using the Division's electronic Discharge Monitoring Report System(eDMR) [see A. (2)].
2. E=Effluent; Inst=Instream, (minimum 100 feet from the discharge,near NC Hwy 581
overpass to Great Swamp); all monitoring shall accurately represent a given waterbody's
physical and/or chemical character.
3. For instantaneous flow monitoring,the Permittee shall record the flow rate,the duration of the
discharge,and the total flow.
4. The Division shall consider compliant all effluent TRC values reported below 50 lig/L. However,
the Permittee shall continue to record and submit all values reported by a North Carolina-
certified test method(including field certified),even if these values fall below 50 µg/L.
5. Total Hardness: Effluent hardness sampling shall be performed in conjunction with testing
for hardness dependent metals(cadmium, copper, lead, nicl ,silver, and zinc).
6. For a given wastewater sample,TN=TKN+(NO2-N+N941),where TN is Total Nitrogen and
TKN is Total Kjeldahl Nitrogen, and(NO2-N+NO3-N) isNjtfite/Nitrate Nitrogen.
7. If any value exceeds the Annual Average or Weekl Average limit,the Permittee shall submit written
notification to the Water Quality Permitting Seg 'on,atd DWR's Washington Regional Office.For
specific explanation of radiological components Refer to 15ATCAC 2B .0200(applicable to all
surface waterbody classifications) \�x / >
Condition: The Permittee shall discharge no floating solids oo oavisible in other than trace amounts.
A. (2.) ELECTRONIC REPORTING OF bISCH4RGE MONITORING REPORTS
[G.S. 143-215.1(b)j
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, 205..
NOTE: This special ndition 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. Until such time that the state's
eDMR application is compliant with EPA's Cross-Media Electronic Reporting Regulation
Page 4 of 7
Permit NC0086959
(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; 4
• Clean Water Act(CWA) Section 3 6(b) nual 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
I above.
Page 5 of 7
Permit NC0086959
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/aboutldivisions/water-resources/edmr
4. Signatory Requirements (Supplements Section B. (11.) (b) and Supersedes Section B. (11.)
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 ubmitting the DMR must obtain an eDMR user
account and login credentials to access the eD system. For more information on North
Carolina's eDMR system, registering for eOMRn, obtaining an eDMR user account, please visit
the following web page:
http://deq.nc.gov/about/divisions/waesources/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."
Page 6 of 7
Permit NC0086959
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].
A. (3.) REOPENER CLAUSE
The Division of Water Resources may reopen this permit to increase monitoring, add additional parameters of
concern, and/or implement additional limits should effluent data or surface water data indicate potential
impacts, or should further information on radiological components become available.
Page 7 of 7
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Northwestern Wayne Sanitary District Facility
Memorial Church Road WTP No. 2 Location4011111(PP
Latitude: 35°32'53.37"N State Grid/Quad: E26 SE/Kenly East (not to scale)
(Longitude: 78°03'4.40" W Permitted Flow: Not Limited
Receiving Stream: UT to Great Swamp River Basin: Neuse River Basin
Stream Class: C-Swamp NSW Sub-Basin: 03-04-07 North] NPDES Permit NC0086959
HUC: 03020203 Wayne County